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电机及其控制英文作文英文：Electric motors are a crucial component in many industries, from manufacturing to transportation. They convert electrical energy into mechanical energy, allowing for the movement of machinery, vehicles, and other equipment. The control of electric motors is also important, as it allows for precise adjustments in speed and direction.There are various types of electric motors, includingAC motors, DC motors, and stepper motors. Each type has its own unique characteristics and applications. For example, AC motors are commonly used in household appliances, while DC motors are often used in electric vehicles. Stepper motors are used in applications that require precise control, such as 3D printers.The control of electric motors can be achieved through various methods, such as using a motor controller or avariable frequency drive. These devices allow for the adjustment of the motor's speed and direction, as well as providing protection against overloading and overheating.In my experience, I have worked with electric motors in the automotive industry. We used DC motors to powerelectric vehicles, and the control of these motors was crucial for the performance of the vehicle. We used a motor controller to adjust the speed and direction of the motor, and to ensure that it did not overheat or overload.Overall, electric motors and their control play a vital role in many industries, and understanding their operation and application is important for anyone working in these fields.中文：电动机是许多行业的关键组件，从制造业到交通运输。
电气工程及其自动化专业英语介绍Introduction:Electrical Engineering and its Automation is a specialized field that combines the principles of electrical engineering with automation technology. This article aims to provide an overview of this discipline and its importance in various industries.I. Importance of Electrical Engineering and its Automation:1.1 Advancements in technology: Electrical Engineering and its Automation play a vital role in the development of new technologies. It enables the design and implementation of innovative electrical systems and automation solutions.1.2 Efficiency and productivity: By optimizing electrical systems and automating processes, this discipline helps in improving efficiency and productivity in industries such as manufacturing, power generation, and transportation.1.3 Safety and reliability: Electrical Engineering and its Automation ensure the safety and reliability of electrical systems by incorporating protective measures and fault detection mechanisms.II. Key Concepts in Electrical Engineering and its Automation:2.1 Electrical circuits and systems: This field extensively deals with the analysis and design of electrical circuits and systems. It includes topics such as circuit theory, electronic devices, and power systems.2.2 Control systems: Control systems are an integral part of automation. This area focuses on designing algorithms and controllers to regulate and optimize the behavior of dynamic systems.2.3 Programmable Logic Controllers (PLCs): PLCs are widely used in industrial automation. They are programmable devices that control and monitor various processes, ensuring seamless operation and fault detection.III. Applications of Electrical Engineering and its Automation:3.1 Power generation and distribution: Electrical Engineering and its Automation are crucial in the generation, transmission, and distribution of electrical power. It involves designing efficient power systems, grid management, and renewable energy integration.3.2 Industrial automation: This discipline plays a significant role in automating industrial processes, improving efficiency, and reducing human intervention. It includes robotics, motion control, and process automation.3.3 Smart grids and energy management: Electrical Engineering and its Automation contribute to the development of smart grids, enabling efficient energy distribution, load management, and demand response systems.IV. Career Opportunities in Electrical Engineering and its Automation:4.1 Electrical engineer: Graduates in this field can work as electrical engineers, involved in the design, installation, and maintenance of electrical systems and automation solutions.4.2 Automation engineer: Automation engineers focus on designing and implementing control systems, PLC programming, and integrating automation technologies into various industries.4.3 Research and development: Electrical Engineering and its Automation offer ample opportunities for research and development in areas such as renewable energy, power electronics, and advanced control systems.V. Conclusion:In conclusion, Electrical Engineering and its Automation is a dynamic field that combines electrical engineering principles with automation technology. It plays a crucial role in advancing technology, improving efficiency, and ensuring the safety and reliability of electrical systems. Graduates in this field have diverse career opportunities in various industries. As technology continues to evolve, the importance of ElectricalEngineering and its Automation will only increase, making it an exciting and promising field of study.。
英文版电机控制书籍(一)英文版电机控制书籍推荐作为一名资深的创作者，我在电机控制领域有丰富的经验和知识。
在这里，我将为大家推荐几本优秀的英文版电机控制书籍，这些书籍可以帮助读者全面了解电机控制的原理和应用。
以下是我的推荐与理由：1. “Electric Motors and Drives: Fundamentals, Types and Applications” by Austin Hughes•简介：这本书由Austin Hughes撰写，是电机控制领域的经典著作。
书中详细介绍了电机的基本原理、不同类型的电机及其应用以及相关的控制技术。
读者可以通过该书系统地学习电机控制的基础知识，并深入了解各种电机的特点和适用场景。
•理由：这本书是电机控制领域的权威之作，内容全面且深入浅出。
不仅适合初学者快速入门，也适合有一定基础的读者进一步提高。
无论是学习电机控制的理论知识，还是应用于实际项目中，该书都能给读者带来很大帮助。
2. “Electric Motors and Control Systems” by Frank D. Petruzella•简介：Frank D. Petruzella编写的这本书主要着重介绍了电机控制系统的设计和调试。
书中不仅包含了对电机控制的基础知识进行解释，还通过实例和案例分析，帮助读者了解如何设计、安装和维护电机控制系统。
•理由：这本书强调实用性，通过实例和案例的分析，读者可以更好地理解电机控制系统的工作原理及设计思路。
此外，书中还提供了丰富的练习题和实验，使读者能够巩固所学知识，并进行实际操作和实践。
3. “Control of Electric Machine Drive Systems” by Seung-Ki Sul•简介：这本书由Seung-Ki Sul撰写，主要介绍了电机驱动系统的控制理论和方法。
书中包含了对电机控制系统的数学模型建立、控制策略设计和性能评估等内容。
电机及其控制专业英语词汇abscissa axis 横坐标ac motor 交流电动机active (passive) circuit elements 有（无）源电路元件active component 有功分量active in respect to 相对….呈阻性admittance 导纳air-gap flux distribution 气隙磁通分布air-gap flux 气隙磁通air-gap line 气隙磁化线algebraic 代数的algorithmic 算法的alloy 合金ampere-turns 安匝(数)amplidyne 微场扩流发电机Amplitude Modulation (AM) 调幅armature circuit 电枢电路armature coil 电枢线圈armature m.m.f. wave 电枢磁势波attenuate 衰减automatic station 无人值守电站automatic V oltage regulator(AVR)自动电压调整器auxiliary motor 辅助电动机bandwidth 带宽base 基极bilateral circuit 双向电路bimotored 双马达的biphase 双相的bipolar junction transistor (BJT) 双极性晶体管block diagram 方框图boost 增加breakaway force 起步阻力breakdown torque 极限转矩bronze 青铜buck 补偿capacitance effect 电容效应carbon-filament lamp 碳丝灯泡carrier 载波Cartesian coordinates 笛卡儿坐标系cast-aluminum rotor 铸铝转子chopper circuit 斩波电路circuit branch 支路circuit components 电路元件circuit diagram 电路图circuit parameters 电路参数coaxial 共轴的,同轴的coil winding 线圈绕组coincide in phase with 与….同相collector 集电极converter 变流器commutation condition 换向状况commutator-brush combination 换向器-电刷总线complex impedance 复数阻抗complex number 复数compound generator 复励发电机compounded 复励conductance 电导conductor 导体corridor 通路coupling capacitor 耦合电容cumulatively compounded motor 积复励电动机dc generator 直流发电机dc motor 直流电动机de machine 直流电机demodulator 解调器differentiation 微分digital signal processing 数字信号处理digital signal processor (DSP) 数字信号处理器direct axis transient time constant 直轴瞬变时间常数direct axis 直轴direct-current 直流direct torque control (DTC) 直接转矩控制displacement current 位移电流dynamic response 动态响应dynamic-state operation 动态运行e.m.f = electromotive fore 电动势eddy current 涡流effective values 有效值effects of saturation 饱和效应electric energy 电能electrical device 电气设备electrode 电极电焊条electromagnetic torque 电磁转矩emitter 发射管放射器发射极end ring 端环energy converter 电能转换器epoch angle 初相角equivalent T – circuit T型等值电路error detector 误差检测器error signal 误差信号excitation system 励磁系统excited by 励磁exciting voltage 励磁电压external armature circuit 电枢外电路external characteristic 外特性feedback component 反馈元件feedback loop 反馈回路feedback signal 反馈信号feedback system 反馈系统feedforward signal 前馈信号feedforward system 前馈系统fidelity 保真度field coils 励磁线圈field current 励磁电流field effect transistor (FET) 场效应管field oriented control (FOC) 磁场定向控制field winding 磁场绕组励磁绕组flux linkage 磁链form-wound 模绕forward transfer function 正向传递函数Frequency Shift Keying(FSK) 移频键控frequency 频率full load 满载full-load torque 满载转矩full-order observer 全阶观测器gain 增益generating 发电generator voltage 发电机电压Geometrical position 几何位置harmonic 谐波的heating appliance 电热器high frequency 高频high-gain 高增益high-performance 高性能的horsepower (HP) 马力horseshoe magnet 马蹄形磁铁hydropower station 水电站ideal source 理想电源imaginary part 虚部impedance 阻抗incident 入射的induced current 感生电流induction generator 感应发电机induction machine 感应电机induction machine 感应式电机induction motor 感应电动机inductive component 感性（无功）分量infinite voltage gain 无穷大电压增益inrush current 涌流instantaneous electric power 瞬时电功率instantaneous mechanical power 瞬时机械功率insulation 绝缘integration 积分下限internal resistance 内阻interoffice 局间的inverse 倒数inverter 逆变器iron-loss 铁损isolation 隔离分离绝缘隔振laminated core 叠片铁芯lamination 叠片leakage current 漏电流leakage flux 漏磁通leakage reactance 漏磁电抗leakage 泄漏left-hand rule 左手定则。
电机及其控制专业英语词汇ac motor 交流电动机active (passive) circuit elements 有（无）源电路元件active component 有功分量active in respect to 相对….呈阻性admittance 导纳air-gap flux distribution 气隙磁通分布air-gap flux 气隙磁通air-gap line 气隙磁化线algebraic 代数的algorithmic 算法的alloy 合金ampere-turns 安匝(数)amplidyne 微场扩流发电机Amplitude Modulation (AM) 调幅armature circuit 电枢电路armature coil 电枢线圈armature m.m.f. wave 电枢磁势波attenuate 衰减automatic station 无人值守电站automatic Voltage regulator(AVR)自动电压调整器auxiliary motor 辅助电动机bandwidth 带宽base 基极bilateral circuit 双向电路bimotored 双马达的biphase 双相的bipolar junction transistor (BJT) 双极性晶体管block diagram 方框图boost 增加breakaway force 起步阻力breakdown torque 极限转矩bronze 青铜buck 补偿capacitance effect 电容效应carbon-filament lamp 碳丝灯泡carrier 载波Cartesian coordinates 笛卡儿坐标系cast-aluminum rotor 铸铝转子chopper circuit 斩波电路circuit branch 支路circuit components 电路元件circuit diagram 电路图circuit parameters 电路参数coaxial 共轴的,同轴的coil winding 线圈绕组coincide in phase with 与….同相collector 集电极converter 变流器commutation condition 换向状况commutator-brush combination 换向器-电刷总线complex impedance 复数阻抗complex number 复数compound generator 复励发电机compounded 复励conductance 电导conductor 导体corridor 通路coupling capacitor 耦合电容cumulatively compounded motor 积复励电动机dc generator 直流发电机dc motor 直流电动机de machine 直流电机demodulator 解调器differentiation 微分digital signal processing 数字信号处理digital signal processor (DSP) 数字信号处理器direct axis transient time constant 直轴瞬变时间常数direct axis 直轴direct-current 直流direct torque control (DTC) 直接转矩控制displacement current 位移电流dynamic response 动态响应dynamic-state operation 动态运行e.m.f = electromotive fore 电动势eddy current 涡流effective values 有效值effects of saturation 饱和效应electric energy 电能electrical device 电气设备electrode 电极电焊条electromagnetic torque 电磁转矩emitter 发射管放射器发射极end ring 端环energy converter 电能转换器epoch angle 初相角equivalent T – circuit T型等值电路error detector 误差检测器error signal 误差信号excitation system 励磁系统excited by 励磁exciting voltage 励磁电压external armature circuit 电枢外电路external characteristic 外特性feedback component 反馈元件feedback loop 反馈回路feedback signal 反馈信号feedback system 反馈系统feedforward signal 前馈信号feedforward system 前馈系统fidelity 保真度field coils 励磁线圈field current 励磁电流field effect transistor (FET) 场效应管field oriented control (FOC) 磁场定向控制field winding 磁场绕组励磁绕组flux linkage 磁链form-wound 模绕forward transfer function 正向传递函数Frequency Shift Keying(FSK) 移频键控frequency 频率full load 满载full-load torque 满载转矩full-order observer 全阶观测器gain 增益generating 发电generator voltage 发电机电压Geometrical position 几何位置harmonic 谐波的heating appliance 电热器high frequency 高频high-gain 高增益high-performance 高性能的horsepower (HP) 马力horseshoe magnet 马蹄形磁铁hydropower station 水电站ideal source 理想电源imaginary part 虚部impedance 阻抗incident 入射的induced current 感生电流induction generator 感应发电机induction machine 感应电机induction machine 感应式电机induction motor 感应电动机inductive component 感性（无功）分量infinite voltage gain 无穷大电压增益inrush current 涌流instantaneous electric power 瞬时电功率instantaneous mechanical power 瞬时机械功率insulation 绝缘integration 积分下限internal resistance 内阻interoffice 局间的inverse 倒数inverter 逆变器iron-loss 铁损isolation 隔离分离绝缘隔振laminated core 叠片铁芯lamination 叠片leakage current 漏电流leakage flux 漏磁通leakage reactance 漏磁电抗leakage 泄漏left-hand rule 左手定则light emitting diode 发光二极管lightning shielding 避雷limiter 限幅器line trap 限波器linear zone 线性区line-to-neutral 线与中性点间的load characteristic 负载特性load-saturation curve 负载饱和曲线locked-rotor torque 锁定转子转矩locked-rotor 锁定转子magnetic amplifier 磁放大器magnetic circuit 磁路magnetic field 磁场magnetic torque 电磁转矩magnetizing reacance 磁化电抗manual control 手动控制mature 成熟的mechanical rectifier 机械式整流器micro-controller 微控制器mid-frequency band 中频带mismatch 失配model reference adaptive control (MRAS) 模型参考自适应控制model reference adaptive system (MRAS) 模型参考自适应系统modulator 调制器modulus 模motoring 电动机驱动mutual flux 交互(主)磁通mutual-inductor 互感no-load 空载number of poles 极数observer 观测器operating condition 运行状态operational calculus 算符演算optical fiber 光纤Oscillation 振荡overhauling 检修P.D. = potential drop 电压降per unit value 标么值percentage 百分数performance characteristic 工作特性permanent magnet 永磁permanent magnet synchronous motor 永磁同步电机per-unit value 标么值phase displacement 相位差Phase Modulation (PM) 相位调制phase reversal 反相plugging 反向制动polarity 极性pole 极点polyphase rectifier 多相整流器polyphase rectifier 多相整流器Polyphase 多相(的)potential distribution 电位分布potential transformer 电压互感器power amplifier 功率放大器power frequency 工频primary cell 原生电池prime motor 原动机prime mover 原动机process of self – excitation 自励过程propagate 传导传播r.m.s values = root mean square values 均方根值random-wound 散绕reactive component 无功分量reactive in respect to 相对….呈感性reactive power 无功功率real part 实部rectifier 整流器reference Voltage 基准电压regeneration 再生, 后反馈放大regulator 调节器reluctance 磁阻retarding torque 制动转矩revolutions per minute 转/分revolutions per second 转/秒rheostat 变阻器right-hand rule 右手定则rotating commutator 旋转（整流子）换向器rotating magnetic field 旋转磁场rotor (stator) winding 转子（定子绕组）rotor core 转子铁芯rotor resistance 转子电阻rotor 转子salient poles 凸极saturation curve 饱和曲线saturation effect 饱和效应self–excitation process 自励过程self excited 自励self-bias resistor 自偏置电阻self-exciting 自励的self-inductor 自感self-sensing 位置自检测sensorless 无传感器的separately excited 他励的series excited 串励series 串励shaft 轴shaft-less 无轴承的short-circuiting ring 短路环shunt displacement current 旁路位移电流shunt excited 并励shunt field 并励磁场shunt 并励shunt 分路器signal amplifier 小信号放大器silica 硅石二氧化硅Single Side Band(SSB) 单边带sinusoidal – density wave 正弦磁密度sinusoidal time function 正弦时间函数slip 转差率solid state 固体solt 槽spatial waveform 空间波形spectral 频谱的spectrum 频谱speed regulation 速度调节speed-torque characteristic 速度转矩特性speed-torque curve 转速力矩特性曲线squirrel cage 鼠笼stabilization network 稳定网络stabilizer 稳定器stabilizing transformer 稳定变压器staor winding 定子绕组stator 定子steady–state condition 稳态条件steady direct current 恒稳直流电storage battery 蓄电池summing circuit 总和线路反馈系统中的比较环节synchronous condenser 同步进相（调相）机synchronous generator 同步发电机synchronous reactance 同步电抗synchronous reluctance motor (SRM) 同步磁阻电机synchronous speed 同步转速technical specifications 技术条件terminal voltage 端电压the dielectric 电介质time constant 时间常数time delay 延时time invariant 时不变的time-phase 时间相位transformer 变压器transient response 瞬态响应transistor 晶体管triangular symbol 三角符号trigonometric transformations 瞬时值tuner 调谐器turns ratio 变比匝比two-way configuration 二线制unidirectional current 单方向性电流variable frequency drive (VFD) 变频器vector equation 矢量方程vector control 矢量控制voltage across the terminals 端电压voltage control system 电压控制系统volt-ampere characteristics 伏安特性waveguide 波导波导管wind-driven generator 风动发电机winding loss 绕组（铜）损耗winding 绕组。
电机起动系统：电机尤其是大电机的起动对电动机构的运行效率起着非常重要的作用。
可以用几种不同的系统起动电机。
使用的电机起动装置位于电源和电机之间。
在起动过程中，电机从电源获得一个比正常运行时大得多的电流。
通常用电机起动装置将起动电流减小到一个电力系统可以控制的水平。
1、全压起动电机起动的方法之一叫全压启动。
这种方法投资便宜而且安装简单。
由于额定电压从起动初始就施加到电机上，所以会产生最大起动转矩和最小加速时间。
然而，电力系统必须能控制由电机汲取的起动电流。
2、主电阻起动电机起动的另一种方法叫主电阻起动。
这种方法将大电阻串联在线路中，以减小电机的起动电流。
通常，连接在线路中的电阻逐级减小，直到额定电压全部加在电机上。
这样，起动转矩随着流过的电流幅值而减小，而起动电流又将随着线路中串联的电阻值而减小。
3、主电抗起动另一种电机起动方法与主电阻起动相似，叫主电抗起动。
这种方法是用电抗器（线圈）替代电阻器，因为在交流电时它们消耗较少的能量。
这种方法通常更适用于额定电压超过600伏的大电机。
4、自耦变压器起动自耦变压器起动是用于电机起动的另一种方法。
这种方法使用一个或多个自耦变压器来控制加在电机上的电压。
接入的自耦变压器通常用于提供一个起动电流控制范围。
当电机加速到它的额定转速附近时，从线路中去掉自耦变压器绕组。
这种方法的主要缺点是自耦变压器的花费大。
5、星形－三角形起动使用星形－三角形起动可能是起动三相电机更为经济的方法。
对星形接法，相电压等于线电压的1.73倍，所以使用星形结构比使用三角形结构起动电流更小。
这种方法在起动时用一个开关使电机定子绕组以星形结构排布，在运转时又以三角形结构排布。
用这种方法减小了起动电流。
6、直流起动系统由于直流电机在不旋转时没有反电动势，它的起动电流非常大。
因此必须使用某种控制系统，例如用一个串联电阻来减小初始的起动电流。
可以手动或自动减小电阻，直到全电压加到电机上。
直流电机常用的4种类型控制系统是：电流限制，定时，反电动势，可变电压。
机电专业英语复习资料一 1.1 Bipolar junction transistorsToday, industrial electronic systems employseveral devices that are described by the term transistor. Each type of transistor has different characteristics and operational conditions that are used to distinguish it from others.每种晶体管都有区别于其它种类的特征和工作环境。
In the first part of this discussion, we are concerned with the . Structurally, this transistor is described as bipolar because it has two different current-carrier polarities.首先探讨双极型晶体管。
从结构上看，这种晶体管被称为双极是因为它具有两种不同的电流载流子电极。
Holes are positive current carriers, whereas electrons are negative current carriers.空穴是正的载流子，电子是负的电流载流子。
Two distinct kinds of semiconductor crystals are connected together by a common element. 两种截然不同的半导体晶体通过公共元件连接在一起。
The structure of this device is similar to that of two diodes connected back to back, with one crystal being common to both junctions. The center material is usually made thinner than the two outside pieces. 该器件的结构类似于背靠背连接的两个二极管的结构，一个晶体同时属于两个结。
电动机控制中英文对照外文翻译文献(文档含英文原文和中文翻译)原文：Control of Electric winchFor motor control, we know the best way is to use the style buttons to move the many simple manual console. And this console, in some applications may still be a good choice, as some complex control headache can also be used. This article describes in your design, build or purchase winch controller, you have the motor's basic electrical equipment and you will need to address the user interface command addressed.First, the manual should be a manual control console type, so if you remove your finger buttons, hoist will stop. In addition, each control station equipped with an emergency need to brake, hoist the emergency brake to cut off all power, not just the control circuit. Think about it, if the hoist at the stop, it did not stop, you do need a way to cut off the fault line protection power. Set the table in the control of a key operated switch, is also a very good idea, especially in the line leading to theworkstation can not control, you can use the switch.(in the design of the console, even the simplest manual console, but also consider setting by specialized personnel to operate the safe operation of the keys.) Constant speed motor controlFor a fixed speed winch actual control device is a three-phase starter. Turn the motor is reversed, by a simple switch controlled phase transformation sequence from ABC to CBA. These actions are completed by two three-pole contactor-style, and they are interlocked, so that they can not be simultaneously closed. NEC, required in addition to overload and short circuit protection devices. To protect the motor against overload due to mechanical effects caused by overheating in the heat to be installed inside the starter overload delay device. When the heat overload delay device overheating, it has a long double off the metal motor power. In addition In addition, you can also select a thermistor can be installed in the motor winding way, it can be used to monitor motor temperature changes. For the short-circuit protection, we generally used by motor fuses to achieve.A linear current independent contactors, the contactors are configured should be more than the current main circuit contactor, so as to achieve the purpose of redundancy. This sets the current contactor is controlled by the security circuit, such as: emergency brake and the more-way limits.We can use the limit switches to achieve the above operation. When you reach the end of the normal travel limit position, the hoist will stop, and you can only move the winch in the opposite direction (ie, the direction away from the limit position.) There is also need for a more limited way just in case, due to electrical or mechanical problems, leaving the operation of hoist limit bit more than normal. If you run into more limiter, linear contactor will open, therefore, can not be driven winch will exceed this limit position. If this happens, you need to ask a professional technician to check the lead to meet the more specific reasons limiter. Then, you can use thestarter toggle switch inside the elastic recovery process to deal with more problems, rather than tripping device or a hand-off the current contacts.A necessary condition for speedOf course, the simple fixed speed starter is replaced by variable speed drives. This makes things start to get interesting again! At a minimum, you need to add a speed control dial operation platform. Joystick is a better user interface, because it makes you move parts of a more intuitive control.Unfortunately, you can not just from your local console to send commands to control the old variable speed drives, in addition, you can not want it in the initial stages, will be able to enhance the safe and reliable and decentralized facilities. Most of the variable speed drive can not achieve these requirements, because they are not designed to do upgrading work. Drivers need to be set to release the brake before the motor can generate torque, and when parking, that is, before the revocation of torque, the brake will be the first action.For many years, DC motors and drives provide a number of common solutions, such as when they are in a variety of speeds with good torque characteristics. For most of the hoist of the large demand for DC motor is very expensive, and that the same type of AC motor than the much more expensive. Although the early AC drives are not very useful, as they have a very limited scope of application of the speed, but produced only a small low-speed torque. Now, with the DC drives the development of low cost and a large number of available AC motors has led to a communication-driven revolution.Variable speed AC drives in two series. Frequency converter has been widely known and, indeed, easy to use. These drives convert AC into DC, and then, and then convert it back to exchange, the exchange after the conversion is a different frequency. If the drive produced the exchange of 30Hz, 60Hz a normal motor will run at half speed. Theoretically, this is very good, but in practice, this will have a lot of problems. First of all, a typical linear motor 60Hz frequencies below 2Hz 3Hz area or there will be errors, and start cog (that urgent push, yank), or parking. This will limit your speed range lower than 20:1, almost not adapted to the operational phase of the fine adjustment. Second, many low-cost converter is not able to provide the rated torque at low speeds. Use of these drives, will result in the rapid move to upgrade the components or complete failure, precisely, when you try to upgrade a stable scientific instruments, you do not want to see this situation. Some new inverter is a closed-loop system (to get feedback from the motor to provide a more accurate speed control), and the motor will work quite well.Another series of AC drives is the flow vector type drive. These components require installation of the spindle motor encoder, encoder makes use of these drivescan accurately monitor the rotation of the motor armature. Processor accurately measured magnetic flux vector values that are required to make the armature at a given speed rotation. These drives allow infinite speed, so you actually can produce at zero speed to rated torque. These drives provide precise speed and position control, so these drives in high performance applications to be welcomed.(Based on PLC controllers provide system status and control options. This screen shows the operator full access to the nine-story elevator enhance the control panel.) PLC-based systemsIs the full name of a PLC programmable logic controller. First of all, PLC controller developed to replace the fifties and sixties-based industrial control system relay, they work in harsh industrial indoor environments. These are modular systems that have a large variety of I / O modules. The modular system can easily achieve the semi-custom hardware configuration assembled, and the resulting configuration is also very reasonable price. These modules include: position control module, the counter, A / D and D / A converter, and a variety of physical state or physical contact with closed output module. Large number of different types of I / O components and PLC module property makes it an effective way to assemble custom and semi custom control system.The biggest shortcoming of PLC systems is the lack of the real number of display to tell you what is being done and the PLC on the PLC program to help you.T he first is professional entertainment for the large-scale PLC system is one of the original in Las Vegas, MGM (now Bailey Company) of the riding and carriage system. Many manufacturers offer a standard PLC-based semi-automated acoustic systems and a host of signs, set the location of the command line interpreter, and the upgrading of the control system is also available. Using standard modules to set user-defined system configuration capability is based on the PLC controller of the greatest advantage.High-end controllerFor complex transmission, the controller became complex, more than speed, time and location control. They include complex instructions to write and record the movement contour, and the processing can immediately run the ability to multi-point instructions.Many large opera house is toward the direction of point lift system, where each one is equipped with a rope to enhance independent winches, rope equivalent to those of each dimmer circuit. When more than one hoist is used to enhance the individual part, the hoist must be fully synchronous, or the load to shift, so will lead to a separate winch becomes the risk of overload. Control system must be able to be selected to keep pace winch, or a hoist winch is not able to maintain synchronization with the other, can provide the same high-speed parking capacity. For a typical speed of 240 ft / min and a winch to maintain the rate of error of between 1 / 8 points of equipment, you only have less than three microseconds of time to identify problems and try to correct the error The hoist speed, make sure you fail, you start all the winch stop the group. This will require a large amount of computation, fast I / O interface, and easy to use to write software.For large rope control system has two very different solutions. The first is to use a separate console, the problem in general terms, this console should be installed in the appropriate location of the operator perspective. However, this not only from one angle to another angle, but still can not get an instruction to another instruction from the control. These difficulties have been partially resolved. Installed in different locations through the use of video cameras, and these cameras connected to the three-dimensional display graphics, these graphics enables the operator to observe from the perspective of any of the three coordinates in the expected direction of rope movement. These operators can make from a console for him at the actual angle, or closed circuit camera practical perspective, to observe the movement of the rope on the screen. For the complex interrelated moving parts, makes the implementation of the above observation Failure to control and find out easier.Another solution to the problem is a distributed system that uses multiple light console. This will allow the different operators in the same way the different aspects of control gear, we have improved the manual control device. A vivid example is the flower in a vegetable market in central London, the Royal Opera House, the program uses the above, where the control console 240 with ten motors. Each console has five playback device, and has been open, so that each motor has been assigned to a single console. An operator and a console can control all the devices, however, often may be running a console platform screen upgrade, another console is a console on the transmission device, and the third console is used to the necessary backgroundin the background image down.(edge-type portable console allows the operator many advantages from the start to control the movement of the machine, and provide three-dimensional image display.)ConclusionA huge change in the rope control system, a workstation has been developed from a push-button to complex multi-user computerized control system. When the control system to buy rope, you can always find to meet your needs. Control system performance is the most important security and reliability. These are the true value of the property, and you can expect the price to buy a suitable way of security. With a certain product manufacturers to work, he will make you know how to install it. And he will make contact with you and the users, those users have with similar requests.译文：电动卷扬机的控制对于电动机的控制，我们所知道的最好的方式就是使用由许多点动式按钮组成的简单的手工操作台。
