Inverter System

Matrix Telecom Static TransferSwitch, INV-STS-100Description PageSTS AC Input voltage range (2)STS AC Output (2)Over Temperature Operation (2)Static Switch Transfer Voltages (2)Environmental Requirements (2)Mechanical (3)Compliances (3)Certifications (3)Schematic of Static Bypass Switch (shown in mainspriority mode) (3)Technical DataIssue A November 2009Matrix Telecom Static Transfer Switch,INV-STS-1002 EATON CORPORATION /telecompowerSTS AC Input voltage range110/115/120 Vac 89 to 138Vac 208/220/230/240 Vac 176 to 276VacFrequency50/60Hz ±2.5% (synchronize range of inverters)STS AC OutputNominal Output Voltage Same as utility voltage or inverter output Permissible Frequency Range Max. +/-2.5% (inverter synchronization) Transfer Time Typical 1/4 cycle Rated Current (Inom) 100AOperation MethodsInverter priority / Mains priority Overload protection20s @ 120% Inom 5s @ 160% Inom3200A < 10ms (mains bypass)Note: The STS will not transfer from Off-line mode to On-line mode if the load exceeds the estimated capacity of the inverter system.Over Temperature OperationOn-line modeWhen the temperature of heat sink in the STS is too high, the static switch will power the load through the internal bypass relay. If the temperature reaches a critical threshold, the bypass relay will be open, and the load will be disconnected. The system will return to normal operation when the temperature drops to acceptable levels.Off-line modeWhen the temperature of heat sink in STS is over 85ºC, the static switch will transfer to on-line mode. Over temperature protection is then the same as on-line mode.Static Switch Transfer VoltagesINV-4810, INV-4815 InvertersNominal Output Voltage110V115V 120V Over Voltage: Range 117~127V 122~132V 127~138V Default Value 127V 132V 138V Under Voltage: Range 89~105V 93~110V 100~114V Default Value 89V 93V100V INV-4810E, INV-4815E InvertersNominal Output Voltage 208V220V230V240VOver Voltage: Range 220~240V 233~252V 244~264V 254~276V Default Value 240V 252V 264V 276VUnder Voltage: Range176~198V 176~209V 185~218V 193~228V Default Value176V 176V 185V 193V Environmental RequirementsOperating temperature range –20°C to 70°C (-4°F to 158°F)–5°C to 50 °C (23°F to 122°F), full performance Storage temperature -30°C to 85°C (-22°F to 185°F)Operating humidity 95% Relative Humidity (non condensing) Operating Attitude 1500mAudible noise 55dB ETS 300 753, class 3.1Matrix Telecom Static Transfer Switch, INV-STS-100Technical DataIssue A November 2009EATON CORPORATION /telecompower 3MechanicalDimension (D, W, H) 270mm, 218mm, 88mm (10.6", 8.6", 3.5") Weight4.4kg (9.7 lb) Heat dissipation Forced air cooling Front Panel LEDsPower Output Warning FaultMains OK, Mains Bypass, Inverter Bypass, STS on Mains, STS on Inverter, Inverter OK, Output OKGreen (25%, 50%, 75%, 100%) Yellow RedGreen CompliancesSafety:EN62040-1 / UL-1778, IEC62310-1 EMC - immunityElectrostatic DischargeEN 61000-4-2 Radiated radio frequency EN 61000-4-3 Electrical fast Transients EN 61000-4-4 Surge EN 61000-4-5Conducted Radio FrequencyEN 61000-4-6 EMC – emissionsEmissions (AC)EN 55022 (Class B)Harmonics EN 61000-3-2Static transfer systems (STS) - Electromagnetic compatibility (EMC) requirementsIEC 62310-2 CertificationsEurope CE-mark USA ULSchematic of Static Bypass Switch (shown in mains priority mode)© Eaton Corporation. All Rights Reserved. In the interests of continual product improvement all specifications are subject to change without notice. Performance ratings are valid with all other variables at Nominal. Specifications guaranteed over rated operating range. Eaton, Powerware, Intergy, CellSure, SiteSure, DCTools and PowerManager are trade names, trademarks, and/or service marks of Eaton Corporation or its subsidiaries and affiliates. All other marks are the property of their respective owners.。

光伏发电系统主设备命名规则•介绍：光伏发电系统是利用光能将太阳辐射能转化为电能的一种清洁能源系统。

它由多个设备组成，如光伏组件、逆变器、电网连接器等。

为了方便管理和维护光伏发电系统，需要对主设备进行命名。

命名原则在命名光伏发电系统主设备时，主要考虑以下原则：1.清晰易懂：设备命名应准确表达出设备的功能和特点，方便工作人员快速理解和识别。

2.一致性：命名应统一，遵循相同的命名规则，便于管理和维护。

3.层次性：通过层次化命名，将设备进行分类，方便快速定位和识别。

4.规范性：命名应符合相关的行业规范和标准，避免混淆和歧义。

命名规则基于以上原则，可以采用以下规则对光伏发电系统主设备进行命名：1. 设备类型命名设备类型命名应准确表达设备的类型和功能。

可以使用以下常用设备类型进行命名：•PV Module：光伏组件•Inverter：逆变器•AC Power Meter：交流电表•DC Power Meter：直流电表•Combiner Box：汇流箱•Mounting System：安装系统•Monitor System：监控系统2. 设备编号命名为了保持一致性和层次性，可以为每个设备分配一个唯一的编号。

设备编号可以根据设备所在的位置或功能进行命名。

•01：表示第1台设备•02：表示第2台设备•03：表示第3台设备•…3. 设备位置命名如果需要对设备进行层次化命名，可以使用设备位置来进行命名。

设备位置命名可以根据设备所在的区域、楼层或方位进行命名。

•Rooftop：屋顶•Ground：地面•North Power Station：北电站•East Power Station：东电站•West Power Station：西电站•South Power Station：南电站4. 设备功能命名某些设备可能具有特定的功能，可以在设备名称中添加该功能的描述。

•Single-axis Tracker：单轴跟踪器•Dual-axis Tracker：双轴跟踪器•Battery Storage：电池储能•Emergency Backup：应急备用示例命名以下是一个示例的光伏发电系统主设备命名：1.PV Module 01：第1台光伏组件2.Inverter 01：第1台逆变器biner Box Ground：地面汇流箱4.Monitor System Rooftop：屋顶监控系统总结光伏发电系统主设备命名规则是为了方便管理和维护光伏发电系统而制定的。

C C Table of ContentsTable of ContentsTable of Contents Table of Contentshapter 1 Safety Instruction ............................................ P1 1.1 Safety Symbol s and Definitions ............................................P1 1.2 Appl ication Range ................................................................ P2 1.3 Insta ation Ambient ..............................................................P2 1.4 Cautions for Insta ing............................................................P3 1.5 Cautions for Operation ........................................................P51.6 Cautions for Disposing ..........................................................P8C hapter 2 Introduction to the Product....................................P92.1 Product Inspection upon Arrival ........................................ P9 2.2 Demonstration of the Model ...................................................P9 2.3 Specifications Labe ..............................................................P9 2.4 Outl ine and Structure ............................................................P9 2.5 Model s and Specifications ...................................................P102.6 T echnical Indications ............................................................P13C hapter 3 Installing and Wiring ..........................................P183.1 Inverter Mounting and Installing .............................................P18 3.2 Inverter Spare Parts Instal l ing and Dismantl ing .....................P20 3.3 Inverter Wiring ...................................................................P253.4 Inverter System Wiring ...........................................................P36C hapter 4 Operation Panel and its Operation ........................P404.1 Operation Panel and the Instruction ....................................... P40 4.2 Display of Monitoring Parameters ...........................................P47 4.3 Display of Trouble Parameters ............................................. P49hapter 5 Operation of the Inverter...................................................P50 5.1 T ria l Operation ................................................................................. P50 5.2 Cautions for Operation ..................................................................P525.3 Operation Examp l es .........................................................................P54C hapter 6 Introduction to Function Parameters...........................P616.1 T abl es for Function Parameters ..................................................... P626.2 Detai l ed Instruction for Function Parameters ................................P80C hapter 7 C ommon Problems,Anomalies and T roubleshooting ..P1357.1 Diagnostic Troub e Codes and Troub eshooting ...........................P1357.2 Anoma l ies and So l utions .................................................................P138C hapter 8Inverter Inspection and Maintenance..............................P1398.1 Inspection and Maintenance .........................................................P139 8.2 Repl acement of the Inverter W earing Parts ................................. P142 8.3 Storage of the Inverter .......................................................................P143 Chapter 9 Outline Dimensions & Mounting Dimensions ..................P144 9.1 Inverter Outline Dimensions & Mounting Dimensions ........................P144 9.2 Operator Panel Outline Dimensions & Mounting Dimensions .............P148 Chapter 10 Quality W arranty ................................................................P151 10.1 Inverter Quality W arranty ................................................................P151 Appendices ............................................................................................P152 Appendix 1 Optional Parts Choosing .......................................................P152 Appendix 2 EMI Prevention .................................................................. P155 Appendix 3 User's Parameter Amendment Record ..............................P161 Appendix 4 W arranty ..............................................................................P164Inverter Inverter Inverter PropergroundingmethodGrounding bus bar(Connect to the ground at the shared point)Figure 1-1DO NOT connect control terminals (except terminals marked"TA", "TB"and "TC") to AC 220V power supply, which may cause damage to the inverter.DO NOT connect AC power supply to the output terminals marked "U", "V"and "W". Otherwise, it may cause damage to the inverter, as shown in theFigure 1-2.FORBIDDENThree-phasePower SupplyFigure 1-2DO install a no-fuse circuit breaker or leakage protective circuitbreaker in the side of inverter input power supply to preventThree-phase AC Power SupplyInverterOffForbiddenOnIn case abnormalities occur, such as smoke, off odor, strange sound, DO cut off the power supply immediately, overhaul the equipment or turn to the agent for he p via phone ca.2.5 Models and Specificationscurrent Leap frequency, Jog function,counter, trace to rotating speed, instant shutdown restarting, Frequecny upper/lower limitation , acceleration/deceleration mode regulating, frequency meter and voltmeter output, multiple speed/program operation, two-wir e/three wire control,vibration frequency control, Multi-function input terminal selection, Failure auto reset and 485COM.InverterRelay Failure OutputVoltage Output Voltage OutputThree-phase AC Power SupplyForwardReverseResetFig. 5-3 Eg. 2 Wiring DiagramF0.01This indicates the selection of frequency setting. If setting this value to "4", the frequency will be set by external voltage signal A VI or external potentiometer.F0.04This indicates the selection of operating instruction. If setting this value to "1", the inverter will be controlled by external terminals.F4.00This indicates the selection of the function of input terminal X1. If setting this value to "20", then the external reset input is performed.FWD-COM on, motor forwards. REV-COM on, motor reverses. FWD, REV COM on or off at the same time, inverter stops running. X1-COM on, failure resets.Realize speed control by regulating the value of "A VI" (controlled by4.7~10K/2W potentiometer).Relay FailureOutputForwardReverseMul tistageSpeed ControlTerminalFree StopThree-phaseAC PowerSupplyFig. 5-4 Eg.3 Wiring DiagramF0.04This indicates the selection of operating instruction. If setting this value to "1", the inverter will be controlled by external terminals.F4.00~F4.02This indicates the selection of multi-function terminalX1~X3, set to 1, 2 and 3 multistage speed control terminal in order.F4.03(X4 multi-function selection). Select 11---External free stop.F2.28~F2.34Multi-speed frequency setting, which can be set into 74.7-10K/2W 4.7-10K/2WThree-phase AC Power SupplyForwardReverse ResetRelay FailureOutputVoltage Output Fig. 5-5 Eg.4 Wiring DiagramF0.01¯This indicates the selection of frequency setting. If setting this value to "4", the frequency will be set by external voltage signal A VI or external potentiometer.PrimarymachineSecondarymachine 1Secondarymachine n Three-phaseAC PowerSupplyForwardReverseResetBusFig. 5-6 Eg.5 Wiring DiagramPrimary Machine SettingF8.00Local communication address: Set this address to 0 and make the inverter as a host.Relay FailureOutput。

Schneider SW 2524-4024-4048, KiloVault Integration GuideIntroduction3 Notes on the SW31800 & 3600 HLX/CHLX4 Basic Settings4 Advanced Settings4HAB 7.5kWh6 Basic Settings6 Advanced Settings6 2100 PLC7 Basic Settings7 Advanced Settings7Resources8 SCP SW Menu Map8 InsightCloud SW Menus9 Links11IntroductionThis guide covers the recommended set-up and configuration of the Schneider Electric Conext SW Solar Hybrid Inverter System (120/240V) using the Conext System Control Panel and InsightCloud. We’ll only be covering battery related settings. In case you are using the Schneider Conext Gateway or InsightHome/Facility, these same settings are available there as well.You can download the SW Owners’ guide here:https:///SwUsersGuideIn that guide, document number 975-0638-01-01 Rev H, you can find an SCP menu map for both Basic and Advanced Settings. A menu map is also reproduced in the Resources section of this document.CAUTION:If you update the firmware on your Schneider Electric equipment, ALL the settings must be reverified. The programmed settings shown in the following tables must be applied based on desired Warranty/Cycle life. We recommend an 80% depth of discharge for our Lithium Iron Phosphate (LiFePO4 or LFP) batteries and a 50% depth of discharge for our PLC battery.Notes on the SW●As of this writing the SW 4048’s minimum high battery voltage disconnect (Hi Batt Cut Out) is 58V,slightly higher than the high voltage disconnect we recommend for 48V systems.●As of this writing, the Schneider Conext Gateway,InsightHome/Facility and InsightCloudapplication provide easier and greater control over the SW than is available through the ConextSystem Control Panel (SCP) or the Conext Combox. The Combox is being discontinued and there are no firmware updates planned for it and the SCP.The SCP provides minimal control over your system.●The maximum battery capacity for the SW is 1000Ah.●When using the SCP, the SW Advanced Settings are accessed by…○Selecting the SW on the Select Device menu○Press and release the Enter and Up Arrow and Down Arrow simultaneously. It may takea few tries to do this.○After performing this keypress,Advanced Settings appears at the top of the XW Pro Setup menu.○If you press and release Enter & Up Arrow & Down Arrow simultaneously again then Basic Settings will appear at the bottom of the Setup Menu●Put the SW into Standby Mode before changing any basic or advanced settings.○Critical loads will lose power and disconnect from the grid or generator when the SW is put into standby mode. To avoid this, place your system into Bypass before putting the SW intoStandby mode.●Put the SW into Operating Mode after changing the settings to save the changes.○If you put your system into Bypass, please remember to take it out of Bypass.1800 & 3600 HLX/CHLX Basic SettingsSetting Name1800 Setting3600 Setting24V48V24V48VBattery Type This will be overridden in Advanced SettingsBattery Capacity150Ah per Parallel String300Ah per Parallel StringMax Charge Rate Set to a percentageof 90A (the 4024max) so that whenadded to the solarcharge controlleramps, the sum is100A (per HLX inparallel)Set to a percentageof 45A (the 4048max) so that whenadded to the solarcharge controlleramps, the sum is100A (per HLX inparallel)Set to a percentageof 90A (the 4024max) so that whenadded to the solarcharge controlleramps, the sum is100A (per HLX inparallel)Set to a percentageof 45A (the 4048max) so that whenadded to the solarcharge controlleramps, the sum is100A (per HLX inparallel)Charge Cycle 2 Stage No FloatRecharge Volts (80% DoD)25.5V51V25.5V51V Low Battery Cutout24V48V24V48VAdvanced SettingsSetting Name1800 Setting3600 Setting24V48V24V48VInverter/Low Batt Cut Out24V48.0V24V48V Inverter/LBCO Delay 5 secondsInverter/LBCO Hysteresis0.5VInverter/High Batt Cut Out28.8V57.6V28.8V57.6V Charger/Batt Capacity150Ah per battery in parallel300Ah per battery in parallelCharger/Max Chg Rate Set to a percentageof 90A (the 4024max) so that whenadded to the solarcharge controlleramps, the sum is100A (per parallelstring)Set to a percentageof 45A (the 4048max) so that whenadded to the solarcharge controlleramps, the sum is100A (per parallelstring)Set to a percentageof 90A (the 4024max) so that whenadded to the solarcharge controlleramps, the sum is100A (per parallelstring)Set to a percentageof 45A (the 4048max) so that whenadded to the solarcharge controlleramps, the sum is100A(per parallelstring)Charger/Charge Cycle2-StageCharger/Default Batt Temp Warm (the default)Charger/Recharge Volts (80%DoD)25.5V51.0V25.5V51.0V Charger/Absorb Time 2 minutes or lessCharger/Batt Type CustomCharger/Custom/Eqlz Support DisabledCharger/Custom/Eqlz Voltage N/ACharger/Custom/Bulk Voltage28.2V56.4V28.2V56.4V Charger/Custom/Bulk Termination27.8V (.4V below Bulk)55.6V (.8V below Bulk)27.8V55.6V Charger/Custom/Absorb Voltage28.2V56.4V28.2V56.4V Charger/Custom/Float Voltage N/ACharger/Custom/Batt Temp Comp0 mV/°CHAB 7.5kWhPlease note: the KiloVault HAB 7.5kWh battery can only be used in 48V systems, so all settings are for the Conext 4048.Basic SettingsSetting Name Setting ValueBattery Type AGM (This will be overridden in Advanced Settings)Battery Capacity150Ah per HAB in parallelMaximum Charge Rate Set to a percentage of 45A (the 4048 max) so that when added to the solar charge controller amperage, the sum is 120A (per HAB in parallel)Charge Cycle2-StageRecharge Volts51.4VLow Battery Cut Out48.2VAdvanced SettingsSetting Name Setting Value Inverter/Low Batt Cut Out48VInverter/LBCO Delay 3 secondsInverter/LBCO Hysteresis2VInverter/High Batt Cut Out57VCharger/Battery Type CustomCharger/Batt Capacity150Ah per HAB in parallelCharger/Max Charge Rate Set to a percentage of 45A (the 4048 max) so that when added to the solar charge controller amperage, the sum is120A (per HAB in parallel)Charger/Charge Cycle 2 Stage No FloatCharger/Default Batt Temp WarmCharger/Recharge Volts for 80% DoD51.4VCharger/Absorb Time 2 minutes or lessCharger/Custom/Eqlz Support DisabledCharger/Custom/Eqlz Voltage N/ACharger/Custom/Bulk Voltage56.2VCharger/Custom/Bulk Termination Voltage55.4V (required to be at least 0.8V below Bulk) Charger/Custom/Absorb Voltage56.2VCharger/Custom/Float Voltage N/ACharger/Custom/Batt Temp Comp0 mV / °C2100 PLCBasic SettingsSetting Name24V48V Battery Type AGM (will be overridden in Advanced Settings) Battery Capacity180Ah per 2100 PLC in ParallelMax Charge Rate Set to a percentage of 90A (the 4024max) so that when added to the solarcharge controller amperage, the sum is100A (per PLC in parallel)Set to a percentage of 45A (the 4048 max) so that when added to the solar charge controller amperage, the sum is 100A (per PLC in parallel)Charge Cycle 3 Stage without a solar charge controller2 stage with a solar charge controllerRecharge Volts for 50% DoD24.6V49.2V Low Battery Cutout24V48VAdvanced SettingsSetting Name24V48V Inverter/Low Batt Cut Out24V48.0VInverter/LBCO Delay10 secondsInverter/LBCO Hysteresis2VInverter/High Batt Cut Out30V60VCharger/Batt Type CustomCharger/Batt Capacity180Ah per 2100 PLC in ParallelCharger/Max Chg Rate Set to a percentage of 90A (the 4024max) so that when added to the solarcharge controller amperage, the sum is100A (per PLC in parallel)Set to a percentage of 45A (the 4048max) so that when added to the solarcharge controller amperage, the sum is100A (per PLC in parallel)Charger/Charge Cycle 3 Stage without a solar charge controller 2 stage with a solar charge controllerCharger/Default Batt Temp Warm (the default)Charger/Recharge Volts (for 50% DoD)24.6V49.2VCharger/Absorb Time8 HoursCharger/Custom/Eqlz Support EnabledCharger/Custom/Eqlz Voltage28.4V (14.2V * 2)56.4V (14.1V * 4)Charger/Custom/Bulk Voltage28.4V (14.2V * 2)56.4V (14.1V * 4)Charger/Custom/Bulk Termination Voltage28V (required to be at least .4V below Bulk)55.6V (required to be at least .8V below Bulk) Charger/Custom/Absorb Voltage28.4V (14.2V * 2)56.4V (14.1V * 4)Charger/Custom/Float Voltage27.2V (13.6V*2)54.4V (13.6V * 4)Charger/Custom/Batt Temp Comp-3mV /°CResourcesSCP SW Menu MapInsightCloud SW MenusThese screenshots are from demonstration sites using random data on InsightCloud -https://To see this data for yourself and to practice using InsightCloud, point your web browser tohttps://, create an account,and create a new site using;●URN: urn:dev:opm:000054-Combox-587AC6N1CSWCL1●SERIAL NUMBER: SESA405035This Schneider demo site simulates a SW installation with a Schneider Conext MPPT 60 charge controller, a Conext battery monitor and a Conext Automatic Generator Start.Input any site name you wish, any date you want for the commissioning date and estimate the site, battery bank and inverter sizes using your preferred method. For this example, it was named Schneider Insight 2 Demo Site 1.From the InsightCloud home page click the demo site you set up above.On the Site Overview page, click “Configuration” to select the demo site you set up earlier.In the Device List, Click “Inverter Charger” to reveal the SW inverter. Click on one of them to load the settings control panel. To see all of the settings categories, click the “Collapse all” button. The settings mentioned above are all available here.LinksSW Installation Guide:●https:///SwInstallationGuideSW Owner’s Guide:●https:///SwOwnersGuideKiloVault HLX/CHLX Manual:●https:///static/datafiles/Others/KiloVault_HLX_Series_Manual_V2.1.2_April022021.pdf KiloVault HAB Manual:●https:///static/datafiles/Others/KLV%20HAB%20Installation%20and%20User%20Manual%20Rev%202.06.pdfKiloVault PLC Manual:●https:///static/datafiles/Others/KiloVault%202100%20PLC%20Installation%20and%20User%20Manual%20Rev%201.04.pdfRevised: 2021-05。

变频器预充电电路原理Variable frequency drive (VFD) pre-charge circuit is an essential part of an inverter system that requires a pre-charge to protect the system from inrush current and voltage spikes. 变频器预充电电路是逆变器系统的重要组成部分，它需要预充电来保护系统免受涌入电流和电压尖峰的影响。

The pre-charge circuit serves as a buffer during the start-up process, gradually introducing voltage to the DC bus capacitors before the main circuit is energized. 预充电电路在启动过程中充当缓冲，它在主电路通电之前逐渐向直流母线电容器引入电压。

One of the key components in the pre-charge circuit is the pre-charge resistor, which limits the initial inrush current to a safe level. 预充电电路中的关键组件之一是预充电电阻，它限制了初始涌入电流到一个安全水平。

By preventing a sudden surge of current, the pre-charge circuit helps protect the DC bus capacitors and other electronic components fromdamage. 通过防止突如其来的电流激增，预充电电路有助于保护直流母线电容器和其他电子组件免受损坏。

The pre-charge process also allows the capacitors to reach their operating voltage gradually, reducing stress on the components and extending their lifespan. 预充电过程还可以让电容器逐渐达到其工作电压，减少对组件的压力，延长其使用寿命。

pcs与逆变器的区别随着现代科技的不断发展，电力系统也得到了广泛的应用与改进。

其中，PCS（Power Conversion System，电力转换系统）和逆变器（Inverter）作为电力领域中的两个重要组成部分，具有各自不同的特点和应用场景。

本文将从工作原理、功能以及适用范围等方面来对PCS与逆变器进行详细的比较与解析。

一、工作原理1. PCS工作原理PCS是一种能够将输入电能转换为不同形式输出电能的系统。

它通过电力电子器件将电能进行转换和调节，实现了功率的传输、转换和控制。

主要包括整流器、逆变器、DC/DC变换器等部分。

其中，整流器将交流电源转换为直流电源，逆变器将直流电源转换为交流电源，DC/DC变换器实现了不同电压等级之间的转换。

2. 逆变器工作原理逆变器是一种将直流电源转换为交流电源的设备。

它通过将直流电源经过变换、滤波和放大等处理，输出所需的交流电源。

逆变器采用高频开关技术，通过控制开关管的通断，将直流电源转变为交流电源，实现了电能的传输与调节。

二、功能特点1. PCS的功能特点(1) 调节功能：PCS可以根据电网的需求对电能进行调节，实现电能的输出和负载的匹配。

(2) 能量储存功能：PCS可以将多余的电能储存起来，在需求高峰时释放出来，提供电力支持。

(3) 无功功率控制功能：PCS可以控制电力系统的无功功率，使得电力系统的功率因数保持在合理的范围内。

(4) 隔离与保护功能：PCS具备电力隔离和短路保护等功能，确保安全可靠的电能传输。

2. 逆变器的功能特点(1) 可逆转功能：逆变器可以将直流电能转换为交流电能，同时也可以将交流电能转换为直流电能。

(2) 波形调节功能：逆变器在转换电能的过程中，可以对电压、频率和波形进行调节，满足不同应用场景的需求。

(3) 高效能转换功能：逆变器的转换效率通常较高，可以最大限度地减少能量的损耗。

(4) 电压调节功能：逆变器可根据负载需要，自动调节输出电压，保持电力系统稳定运行。

U p t o 5% E n e r g y S a vi n g s !Fact 1As a world leader in air conditioning technology, Daikin can be trusted to control the temperature, airflow and air quality in a broad range of environments. From homes to high rises, from hospitals to hotels, Daikin has an air conditioning solution that provides superior comfort in any application.Daikin 5 Key FactsGlobal No. 1 HVAC manufacturer with more than 90 years of Japanese expertiseDaikin is the market and technological leader since 1924. Daikin has over 90 production facilities all over the world, sells around 19 Billion USD to more than 150 countries worldwide.» Japan » Malaysia » Thailand » China » Australia » India» United Arab Emirates » KSA » Egypt» South Africa » Turkey» Czech Republic » Italy » Belgium » Brazil » USAWhy Daikin?An air conditioning expert; not homeappliances seller!Daikin is the only air conditioning company in theworld that specializes in manufacturing, sales andafter sales service, not to mention refrigerants.Daikin's core business is air conditioning, nothome appliance!Daikin is unique throughout the world in beingthe only producer of refrigerants and compressors,as well as manufacturing air conditioning, heating,refrigeration, chilled water systems and ventilationsolutions. As a result, Daikin is the only one to havefull control of every component within the airconditioner you purchased and can bring the verylatest innovations to our products.Technological leaderDaikin leads the way in the air conditioning marketwith the 3 cutting-edge core technologies:the airINVERTERsavings andcomfortNot just ‘quality’, but ‘Daikin quality’Innovation and quality have always been thekeystones of Daikin philosophy. Daikin stronglybelieves that by offering only the best products,success can be achieved.Wherever the production location is, Daikin appliesvery strict quality standards. We do not just offerany ‘quality’, but ‘Daikin quality' from the designstage to delivery to customer.Also, all major components are engineered andmanufactured by Daikin, ensuring maximumperformance, reliability and efficiency. From theinternal motors and compressors to the exterioranti-corrosion treatment and self-diagnosticfunction, Daikin systems are built with durability.Strong and quality-oriented after salessupportDaikin guarantees your comfort in every facet ofour service. Daikin’s dedicated After Sales SupportTeam is second-to-none in providing you with thenecessary coverage for your continued comfortbeyond purchase.9015031924Daikin is the global leader in the HVAC market for over 90 years.*Data presented here are as of 31st March 2017.There are two main technologies to be considered when purchasing a split air conditioner:You always want the best for your home: best TV, best phone etc… This approach should be the same when it comes to purchasing an AC knowing that you will use it almost every day in the year!What is the difference between the various technologies available in the market and why are some of them are more expensive than the others?At first look, both systems offer similar functionality: cooling the air. But, in reality, they are different in terms of compressor drive. Old technology systems use a fixed-speed (Non Inverter) and advanced systems use variable speed (Inverter).»ON/OFF systems, so called "Non-Inverter", used in conventional air conditioners.»Inverter systems, variable speed using the latesttechnology in the air conditioningWhy Inverter?Saving money – we all want that!Do y ou k now t hat c onventional s plits (Non I nverter) are using compressor running at high (maximum) fixed speed all the time? This, combined with the repeated restart of the compressor, will lead the air conditioner to consume a lot of energy. In reality, an ON/OFF system is very inefficient and costly to use.The variable speed compressor of the Inverter split adjusts the power according to the temperature in the room;in simple words, the unit will run at higher speed when you need more cooling and at lower speed when you need less . The electricity you will use then depends on your actual needs, not more! Inverter technology will lower the consumption of the air conditioner down to 50%, so you pay less money for your electricity bills!Tip 2Tip 3Fastest and most powerful coolingDaikin Inverter technology speeds up at the start-up time so the room is cooled down quicker.With Daikin Inverter, the cooling is quick andpowerful, even under extremely high outdoortemperatures.Because Daikin Inverter is smart, it's capableof adjusting the cooling power accurately toyour actual needs. You will have a comfortabletemperature all year round and you will never feeltoo warm or too cold.Eco-friendlyAs you can see all around you, it is all about howwe can reduce our impact on the environmentand reduce the energy use! You can contribute tolowering the environmental impact by making asmart choice for your AC.Longer lifeAs the compressor does not turn on and off all the time and runs at lower speeds and pressures, it makes the AC’s life longer as you will reduce the stress on the compressor, which is the heart of your AC.Quieter operationAs the Daikin Inverter is the most recent technology, it also offers the most silent operation.You will no longer experience disturbing ON/OFF and high fan noise.Tip 4Tip 5Because Daikin Inverter can adjust speed and cooling capacity according to your needs, it uses less energy than traditional AC. Less energy use means lower carbon footprint (CO 2 emissions), which is more friendly to the environment.Also, Daikin uses the latest refrigerants with amazing cooling performance, specially selected for our hot and harsh climate, and less impact to the environment compared to other brands. Refrigerants used by Daikin do not deplete the ozone layer!How long has the inverter compressorbeen used in the world?Inverter AC has been invented in 1980! Today, itis the most selling technology in many countries!First inverter AC has been launched in 1980 butthe spread of the technology over the world onlystarted after 2005 when every market startedto realize the importance of saving electricityconsumption through air conditioning.Today, Inverter is the most selling technology inJapan, Australia, Europe and China.FAQQ2Why do you need Inverter in Middle East?Your cooling needs are different in summer and winter; your AC should adjust to that!The amount of cooling (heating) capacity required depends on the outside temperature and the heat inside the room to be treated. Since the outside temperature varies all year long, the cooling requirements will also vary all year round. Only Inverter has the inner intelligence to adjust the speed to deliver the exact amount of cooling required.Why Inverter is more expensive?Inverter is not expensive! It is a real cost-effective solution.Although Inverter solutions will require a higher investment cost compared to traditional systems, the total life cycle cost is much less and allows you to make real savings throughout the year: inverter units pay by themselves after a short period! When you purchase a unit, the real cost that you pay is not only the unit cost but also the electricity cost that it will consume! To make real savings, you always need to compare the total cost, including the operation cost. Inverter will help you save on your energy bill.Why Daikin is more expensive?Daikin is not expensive!Equipment cost reflects technological expertiseand quality of components used.»Unlike other brands, Daikin does notcompromise on Quality for Price!» Daikin designs and selects carefully all thecomponents of the air conditioner, to ensuredurability and long lifetime.» As Daikin equipment is extremely efficient, initialinvestment is returned back quickly throughlow running costs.» Daikin is a global company with strong localpresence and unmatched after sales support.How can I compare efficiency betweenInverter and Non Inverter?I nverter savings: beyond declared EER or starrating!Today, the only official way to compare performanceof the AC is to look at EER or star rating But what is thereal meaning of EER? EER stands for "Energy EfficiencyRatio"; it will give you an indication on how yoursystem performs at one fixed temperature condition.Using this methodology can be considered asacceptable to assess efficiency of non-inverter systemas it provides a fixed capacity throughout the year andthe average power consumption. Thus efficiency, willbe on average the same over the entire year.The situation for Inverter is different as it has theability to adjust capacity to meet the applicationrequirements. Adjusting capacity is done throughthe regulation of compressor speed; thus powerinput will constantly be adjusted.So, representing efficiency of inverter through EER that is measuring efficiency at full capacity at one fixed condition is not really correct.In order to measure the real efficiency of an air conditioner, the formula must integrate the full weather conditions (all temperatures) at which the system will operate in a certain location. The global trend is towards using "Seasonal Efficiency Ratio" (SEER) as an indicator of the efficiency of an air conditioner: it will measure efficiency of the system at all temperatures and capacity conditions. Different regions have different measuring formulas adapted to their local weather pattern in Europe, US or Japan etc. Now, a Technical Committee of ISO TC86 is working on a SEER calculation standard for Hot Climates that could be adapted to specific cities' weather bin in the region. SEER will then apply to both Inverter and Non-Inverter systems and will greatly help the consumer to know a realistic figure of his estimated yearly energy consumption.What does it mean when I nverter canreach up to 130% capacity?Inverter can modulate capacity from aminimum to a maximum level!You have to remember that inverter is a smartsystem equipped with variable speed motors.It can modulate the capacity output from aminimum level to a maximum level by varying itsspeed accordingly.Inverter can usually cover a capacity range from30% (minimum level; this level can reach down10% on VRV systems) to130% (maximum level)against the capacity declared in the commercialbrochure.For example, Daikin Inverter R 32 split FTKM24PVM can modulate its capacity between 6.5 kBtuup to29.5kBtu while catalogue data is showing24kBtu.When you select your inverter AC, in order toreduce your investment cost, you can selectit based on maximum capacity. However, ifyou select it based on the rated value, theperformance and lifetime will be optimized as theunit will work less time at full load.Is Inverter air conditioner morecomplicated to maintain?Not really!Thanks to the built-in intelligence implementedin the electronics that will allow achieving hugesavings by regulating the compressor, inverterunits are considered more sophisticated systems.Daikin technicians and installers are experienced and extensively trained by Daikin on installation, maintenance and troubleshooting. In fact, cause and type of failure can be faster and easier diagnosed on Inverter thanks to the self-diagnosis function.What is important to remember, to keep your air conditioner lifetime as long as possible, is to conduct periodical maintenance, as per manufacturer recommendations.What about spare parts cost for Inverter? Equivalent parts have similar cost except for the compressor.The main differences in terms of components between inverter and non-inverter are:» Compressors (drive)» PCB (Printed Circuit Board; electronics)The cost of Inverter compressor is of course more expensive than traditional non inverter compressor as it is the latest technology. But lifetime of inverter compressor is estimated to be longer than traditional non inverter: less start / stop cycle and lower inrush current and speed vs non inverter. Also, thanks to the inverter compressor, your system will realize huge energy savings. The higher purchase cost will be compensated by the reduction of electricity cost.To prevent your air conditioner from major failure, it is crucial to periodically maintain your AC as per manufacturer recommendations.Can we install inverter units near to sea? Does salty environment affect the inverter components?Daikin I nverter air conditioners are equipped with anti-corrosion protection as standard.All Daikin standard equipment, regardless of technology, are equipped with anti-corrosion protection.In very harsh environment, regardless of the technology, if the outdoor location is less than 500m from the sea shore and the unit is facing direct wind, Daikin requires purchasing additional heavy anti-corrosion protection option. The type of treatment will depend on the environment. For more details, please contact a Daikin representative.What about the lifetime of Inverter compressor?Longer lifetime for Inverter!The variable speed operation of inverter allows extension of compressor lifetime compared to non-inverter equipment. Non inverter system must repeatedly turn ON and OFF its compressor,resulting in a higher stress on the motor.Do you have any questions? Do not hesitate to contact us or your Daikin representative.NotesThe present publication is drawn up by way of information only and does not constitute an offer bindingupon Daikin Middle East and Africa. Daikin Middle East and Africa has compiled the content of this publication to the best of its knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content and the products and services presented therein. Specifications are subject to change without prior notice. Daikin Middle East and Africa explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or interpretation of this publication. All content is copyrighted by Daikin Middle East and Africa.P .O. Box 18674, Jebel Ali Free Zone, Dubai, UAE Tel: +971 (0) 4 815 9300, Fax: +971 (0) 4 815 9311Email: ******************Daikin Middle East and AfricaReduce your electricity bill with Smart TechnologyThink Smart, think Green,think Daikin Inverter!U p t o 50%E n e r g y S a vi n g s !。

微逆变器微逆变器是传统逆变器的微型版，将太阳能面板产生的直流电转换成可现场使用或供并网发电的交流电。

微逆变器尤其适合用于小的光伏系统中，如1KW 或以下。

传统的太阳能系统能利用中央逆变器，它安装于太阳能板旁的控制盒内，而不同的是，微逆变器将直接粘贴在每个面板上。

中央逆变器采用所谓的最大功率点跟踪(Maximum Power Point Tracking，MPPT)的原理来测定整个系统最优的功率输出。

因为太阳能面板典型地采用串联联接，一个低性能的面板将会影响到其他面板的输出。

如果部分面板被树或建筑物遮挡住，MPPT就会被降低。

较低的MPPT将会导致低的系统电力输出。

代替整个系统MPPT，微逆变器是在每个面板上进行MPPT，因此采用微逆变器能够确保一些低性能的面板将不会拉底其他面板的输出。

通过运算可以找到最合适的功率点，理想状态下每个电池板都有。

在“扰乱观察”这一常用技术里，功率变化电路系统尝试牵引更多电流以观察电压是否下降。

然后该算法进行MPPT（最大功率点追踪），在过程中搜索最大功率点，在该点上从模块中得到最大功率。

在传统太阳能设施中，该过程在中央逆变器中进行。

通过中央逆变器找到的很可能是区域最大值而不是阵列的绝对最大值。

如果所有电池板状态都很好，则实际的最大功率点和区域最大功率点的差别可忽略不计。

不过因为老化差异、乌云遮挡或存在污物等缘故，也不能指望还有良好的电池板。

某个性能较差的模块决定了串行中其它模块所接收的电力。

ENPHASEENPHASE MICROINVERT E RThe Enphase Energy Microinverter System improves energy harvest,increases reliability, and dramatically simplifies design, installation and management of solar power systems. The Enphase System includes the microinverter, the Envoy Communications Gateway, and the web-based Enlighten monitoring and analysis website.P R ODUC T I V E:（1）Maximum energy production;（2）Resilient to dust, debris and shading;（3）Performance monitoring per module.R E L I A B L E : (1) (2)System availability greater than 99.8%;(2) No single point of system failure.S M A R T: (1) Quick & simple design, installation and management;(2 ) 24/7 monitoring and analysis.S A F E: (1)Low voltage DC;(2)Reduced fire risk.MICROINVERTER TECHNICAL DATAThe D380 “TwinPack” microinverters contain 2 independent DC inputs. The Input Data (DC) values below apply to both DC Inputs A and B individually.INVOLAR MICROINVERT E R英伟力新能源科技（上海）有限公司是由太阳能、电信、网络领域的5位归国留学人员创立的新兴本土企业，并获得了太阳能行业诸多领军人物的大力支持。

FSBS15CH60 Smart Power Module44mm26.8mmFigure 1.FSBS15CH60 Smart Power ModuleFSBS15CH60 Smart Power Module Pin DescriptionsPin Number Pin Name Pin Description1V CC(L)Low-side Common Bias Voltage for IC and IGBTs Driving2COM Common Supply Ground3IN(UL)Signal Input for Low-side U Phase4IN(VL)Signal Input for Low-side V Phase5IN(WL)Signal Input for Low-side W Phase6V FO Fault Output7C FOD Capacitor for Fault Output Duration Time Selection8C SC Capacitor (Low-pass Filter) for Short-Current Detection Input9IN(UH)Signal Input for High-side U Phase10V CC(UH)High-side Bias Voltage for U Phase IC11V B(U)High-side Bias Voltage for U Phase IGBT Driving12V S(U)High-side Bias Voltage Ground for U Phase IGBT Driving13IN(VH)Signal Input for High-side V Phase14V CC(VH)High-side Bias Voltage for V Phase IC15V B(V)High-side Bias Voltage for V Phase IGBT Driving16V S(V)High-side Bias Voltage Ground for V Phase IGBT Driving17IN(WH)Signal Input for High-side W Phase18V CC(WH)High-side Bias Voltage for W Phase IC19V B(W)High-side Bias Voltage for W Phase IGBT Driving20V S(W)High-side Bias Voltage Ground for W Phase IGBT Driving21N U Negative DC–Link Input for U Phase22N V Negative DC–Link Input for V Phase23N W Negative DC–Link Input for W Phase24U Output for U Phase25V Output for V Phase26W Output for W Phase27P Positive DC–Link InputFSBS15CH60 Smart Power ModuleControl Part Total System Thermal ResistanceNote:2. For the measurement point of case temperature(T C ), please refer to Figure 2.SymbolParameterConditionsRatingUnitsV CC Control Supply Voltage Applied between V CC(UH), V CC(VH), V CC(WH), V CC(L) -COM20V V BS High-side Control Bias VoltageApplied between V B(U) - V S(U), V B(V) - V S(V), V B(W) -V S(W)20V V IN Input Signal Voltage Applied between IN (UH), IN (VH), IN (WH), IN (UL), IN (VL),IN (WL) - COM-0.3~17V V FO Fault Output Supply Voltage Applied between V FO - COM -0.3~V CC +0.3V I FO Fault Output CurrentSink Current at V FO Pin5mA V SCCurrent Sensing Input Voltage Applied between C SC - COM-0.3~V CC +0.3VSymbolParameterConditionsRatingUnitsV PN(PROT)Self Protection Supply Voltage Limit (Short Circuit Protection Capability)V CC = V BS = 13.5 ~ 16.5VT J = 125°C, Non-repetitive, less than 2µs 400V T C Module Case Operation Temperature -20°C ≤ T J ≤ 125°C, See Figure 2-20 ~ 100°C T STG Storage Temperature -40 ~ 125°C V ISOIsolation Voltage60Hz, Sinusoidal, AC 1 minute, Connection Pins to ceramic substrate2500V rmsSymbolParameterConditiosMin.Typ.Max.UnitsR th(j-c)Q Junction to Case Thermal ResistanceInverter IGBT part (per 1/6 module) -- 3.1°C/W R th(j-c)FInverter FWD part (per 1/6 module)--3.6°C/WNote:4. Short-circuit current protection is functioning only at the low-sides.5. The fault-out pulse width t FOD depends on the capacitance value of C FOD according to the following approximate equation : C FOD = 18.3 x 10-6 x t FOD [F]Recommended Operating ConditionsUV CCR Reset Level 11.212.413.2V UV BSD Detection Level 10.111.312.5V UV BSR Reset Level10.511.712.9V t FOD Fault-out Pulse Width C FOD = 33nF (Note 5)1.0 1.8-ms V IN(ON)ON Threshold Voltage Applied between IN (UH), IN (VH), IN (WH), IN (UL),IN (VL), IN (WL) - COM3.0--V V IN(OFF)OFF Threshold Voltage--0.8VSymbolParameterConditionsValueUnitsMin.Typ.Max.V PN Supply Voltage Applied between P - N U , N V , N W-300400V V CC Control Supply Voltage Applied between V CC(UH), V CC(VH), V CC(WH),V CC(L) - COM13.51516.5V V BSHigh-side Bias VoltageApplied between V B(U) - V S(U), V B(V) - V S(V),V B(W) - V S(W)13.01518.5V DV CC /Dt, DV BS /Dt Control supply variation -1-1V/us t dead Blanking Time for Preventing Arm-short For Each Input Signal 2.0--us f PWM PWM Input Signal-20°C ≤ T C ≤ 100°C, -20°C ≤ T J ≤ 125°C --20kHz V SENVoltage for Current SensingApplied between N U , N V , N W - COM (Including surge voltage)-44VFSBS15CH60 Smart Power ModuleFSBS15CH60 Smart Power ModuleFSBS15CH60 Smart Power ModuleTRADEMARKSThe following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks.FSBS15CH60 Smart Power ModuleDISCLAIMERFAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.LIFE SUPPORT POLICYFAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.As used herein:1. Life support devices or systems are devices or systems which,(a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling,can be reasonably expected to result in significant injury to the user.2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.PRODUCT STATUS DEFINITIONS Definition of TermsDatasheet IdentificationProduct StatusDefinitionAdvance InformationFormative or In Design This datasheet contains the design specifications for product development. Specifications may change in any manner without notice.PreliminaryFirst ProductionThis datasheet contains preliminary data, andsupplementary data will be published at a later date.Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design.No Identification Needed Full ProductionThis datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design.Obsolete Not In ProductionThis datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor.The datasheet is printed for reference information only.FAST ®FASTr™FPS™FRFET™GlobalOptoisolator™GTO™HiSeC™I 2C™i-Lo ™ImpliedDisconnect™IntelliMAX™ISOPLANAR™LittleFET™MICROCOUPLER™MicroFET™MicroPak™MICROWIRE™MSX™MSXPro™OCX™OCXPro™OPTOLOGIC ®OPTOPLANAR™PACMAN™POP™Power247™PowerEdge™PowerSaver™PowerTrench ®QFET ®QS™QT Optoelectronics™Quiet Series™RapidConfigure™RapidConnect™µSerDes™SILENT SWITCHER ®SMART START™SPM™Stealth™SuperFET™SuperSOT™-3SuperSOT™-6SuperSOT™-8SyncFET™TinyLogic ®TINYOPTO™TruTranslation™UHC™UltraFET ®UniFET™VCX™A CEx™ActiveArray™Bottomless™CoolFET™CROSSVOLT ™DOME™EcoSPARK™E 2CMOS™EnSigna™FACT™FACT Quiet Series™Across the board. Around the world.™The Power Franchise ®Programmable Active Droop™Rev. I15。

摘要随着近年来对高质量，高可靠性电源系统的需求不断发展，生产的总电能中，越来越多的电能必须经过电力电子技术实行能量变换后，再用于民用、工业或军事的需要。

而逆变器是对电能进行变换和控制的一种关键器件，具有输出高质量电压波形的能力。

高性能数字信号处理器（DSP）的飞速发展，使数字化逆变器系统成为今后发展的潮流。

本文主要对NPC三电平逆变器系统进行了分析和研究：1．以中点钳位式三电平逆变器的基本拓扑结构为基础，阐述了三电平逆变器的运行机理。

2．在两电平逆变器基础上详细研究了三电平逆变器中空间电压矢量调制技术的基本原理，提出了一种采用最近三矢量法合成参考矢量的空间矢量脉宽调制算法，给出了小三角形区域判断规则、合成参考电压矢量的相应输出电压矢量作用顺序和作用时间以及开关信号的产生方法。

由于中点电位的不平衡是二极管钳位式三电平逆变器运行过程中比较严重的问题，本文分析了不同矢量对中点电位的影响，并得出通过对成对小矢量的作用时间分配能够控制中点电位的结论。

逆变器控制系统在控制策略上采用电压型PWM逆变控制，并用TI公司的DSP芯片TMS320LF2407A、XILINX公司的CPLD芯片XC95144XL、相应的驱动电路和高速数据采集电路等实现这种闭环控制。

另外，本文还通过MATLAB仿真软件对基于空间矢量调制的SVPWM波控制的二极管钳位式逆变器进行了仿真，对逆变后的电压和电流波形以及波形谐波畸变率进行了分析,并验证了三电平逆变器较两电平逆变器的优越性。

关键词：DSP;逆变;二极管钳位式;SVPWM;仿真AbstractIn recent years, with high quality, high reliability of power system needs cons tant development, the production of total power, more and more power must pass power electronic technology transformation of energy, then for civilian use, industrial and military needs. And inverter is electric transformation and control of a key components, with high quality output voltage waveform ability. High-performance digital signal processor (DSP) rapid development, make the digital inverter system become the trend of development in the future.This paper mainly to the NPC three-level inverter system analysis and research: 1. The halfway point in the ground-clamp type three-level inverter based the basic topological structure, this paper expounds the three-level inverterThe operation mechanisms.2. In two level inverter based on a detailed study of the three-level inverter in space voltage vector modulation technology,The basic principle, put forward a kind of the last three vectorsynthesis method of vector space vector reference pulse width modulation calculate Method, gives small triangle area judge rules, synthetic reference voltage vector corresponding output voltage vector function Order and function and switch time signal generation method.Due to the halfway point of the potential imbalance is the ground-clamp diode type three-level inverter in the process of operation is a relatively serious problem, this paper analyzes the different vector to point the influence of the electric potential, and that the pair small vector by the role of the distribution of time to control the halfway point of the potential conclusions. Inverter control system control strategy in the voltage source PWM inverter control, and the DSP TMS320LF2407A TI company, XILINX company XC95144XL CPLD chip, the corresponding drive circuit and high speed data acquisition circuit to realize the closed-loop control. In addition, this paper also through MATLAB simulation software based on space vector modulation of the wave to control of diode SVPWM embedded a type inverter is simulated, and the inverter to the voltage and current waveform and waveform harmonic distortion rate is analyzed，And verify the three-level inverter is two level inverter superiority.Keywords: DSP；inverter；diode embedded type；space vector；simulation目录第一章绪论 (3)1.1课题研究背景及意义 (3)1.2研究现状及特点 (4)1.3拓扑结构选择 (5)1.4本文的主要目的、任务、技术指标及主要内容 (8)第二章二极管钳位式三电平逆变器主电路的设计 (10)2.1二极管钳位式逆变电路拓扑 (10)2.2逆变器工作状态分析 (11)第三章三电平SVPWM简化控制算法 (13)3.1引言 (13)3.2基于参考电压分解的SVPWM简化算法 (14)3.2.1两电平统一电压调制算法 (14)3.2.2三电平SVPWM简化算法 (17)3.2.3三电平SVPWM与SPWM的统一 (18)第四章中点平衡 (23)4．1中点电位不平衡的原因 (23)4．2三电平逆变器中点电压波动分析 (24)4．2．1 三电平逆变器中点电压波动定性分析 (24)4．2．2 对三电平逆变器中点电位波动的定量分析 (25)第五章三电平逆变器的硬件设计 (28)5.1系统构成 (28)5.2主电路设计 (29)5.2.1母线电容的选择 (29)5.2.2功率器件的选择 (29)5.2.3变压器的选择 (30)5.2.4输出滤波器设计 (32)5.3控制电路设计 (33)5.3.1TMS320LF2407A简介及特点 (34)5.3.2、CPLD接口电路 (39)5.3.3 SVPWM波形的产生 (39)5.4、采样电路设计 (42)5.5驱动电路设计 (45)5.6其他外围电路设计 (48)第六章系统软件设计 (52)6.1计算模块 (52)6.2主控制程序及中断程序设计 (54)第七章三点平逆变器的仿真..................... 错误!未定义书签。