CENTRAL CONTROL SYSTEM OF POWER 集成设备操作和发电厂的中央控制系统
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INTEGRATED EQUIPMENT OPERATION AND CENTRAL CONTROL SYSTEM OF POWER PLANTS
Maunank V Patel B.E., C.U. Shah College of Engineering & Technology, India 2006
Nilay K Desai B.E., S.V.I.T, Gujarat University, India 2006
PROJECT Submitted in partial satisfaction of the requirements for the degrees of
MASTER OF SCIENCE in ELECTRICAL AND ELECTRONIC ENGINEERING
at CALIFORNIA STATE UNIVERSITY, SACRAMENTO FALL 2009 ii
INTEGRATED EQUIPMENT OPERATION AND CENTRAL CONTROL SYSTEM OF POWER PLANTS
A Project by Maunank V Patel Nilay K Desai
Approved by: ______________________________, Committee Chair Dr. John C. Balachandra, Ph.D.
______________________________, Second Reader Dr. B. Preetham Kumar, Ph.D.
____________________________ Date iii
Students: Maunank V Patel Nilay K Desai
I certify that theses students have met the requirements for format contained in the University format manual, and that this project is suitable for shelving in the Library and credit is to be awarded for the project.
________________________________, Graduate Coordinator __________________ Dr. B. Preetham Kumar, Ph.D. Date
Department of Electrical and Electronic Engineering iv
Abstract of INTEGRATED EQUIPMENT OPERATION AND CENTRAL CONTROL SYSTEM OF POWER PLANTS
by Maunank V. Patel Nilay K. Desai
As we know our each day to day activity requires electricity, starting from waking up by alarm to using cell phone and computer at work till watching our daily night shows on television, and that comes from the power generation plants, usually called power plant. Main goal of the project is to analyze and diagnosis the main performance parameters and optimize power plant functionality using the fault detection in instruments and plant components, also issuing the replacement, repair or corrective adjustments to the plant instruments. This could be done by continuously collecting data through different parameters like voltage, part‟ maximum efficiency, maximum output etc. The outcome of this project and conclusion will be beneficial to the power plant authorities and government authorities to prioritize and effectively maintaining the power plant and its valuable instruments like generator. _______________________, Committee Chair Dr. John C. Balachandra, Ph.D.
_______________________ Date v
TABLE OF CONTENTS List of Figures…………………………………………………………………...…....… vii List of Tables……………………………………………………………………..……. viii Chapter 1. INTRODUCTION………………………………………………..…………….......... 1 2. POWER PLANTS, GENERATOR OPERATION AND EXPERIMENTS………...…………………………………………………...………. 3
2.1 Electric Generator Principles………………………………………………… 4 2.2 Purpose of Performing Experiments…………………………………………. 7 2.3 Load Characteristics of an Alternator………………………………...……… 8 2.4 Efficiency and Losses of an Alternator ………………………….…………. 15 3. DATA TRANSMISSION…………………………………………………..………. 21 3.1 Wired Communication……………………………………………..…….…. 22 3.2 Wireless Communication …………………………………………..………. 23 3.3 Why Satellite Communication? ……..……………………………………... 25 4. CENTRAL CONTROL SYSTEM AND CONTROL LOGIC…………………….. 28 4.1 Implementation……………………………………………....……………... 29 4.2 Finite State Machine………………………………………………………... 34 4.3 Control-IC Inputs and Outputs…………………………………………….... 35 4.4 Algorithm Structure and Operation………………………………………… 36 4.5 Code Logic………………………………………………………………..… 38 5.6 Simulation Results………………………………………..………………… 46 vi
5. CONCLUSION…………..…………………………………………………………. 49 5.1 Future Expansions.……………...………………………………….……….. 49 5.2 Advantages……………………………………………………….…………. 50 5.3 Limitations……………………………………………………….…………. 50 6. References…………….……………………………………………………………. 52 vii LIST OF FIGURES 1. Figure 2.1: Generator Operating Principle ………………………………………...… 4 2. Figure 2.2: 3-Phase Generator Schematic ……...………….……………………….... 6 3. Figure 2.3: Circuit Diagram of the DC Motor, Alternator and RLC Load ……......… 9 4. Figure 2.4: Power Factor of Different Types of Loads (a) Lagging PF (b) Leading PF ………………………………………………………………………………………. 11
5. Figure 2.5: Resistive Load VI Characteristics …..………………..………………... 12 6. Figure 2.6: Resistive and Reactive Load VI Characteristics……..……………….... 14 7. Figure 2.7: Circuit for Measuring Rotational Losses ……………….…………..….. 16 8. Figure 2.8: Circuit for Measuring Armature Resistance…………………………..... 17 9. Figure 2.9: Circuit for Measuring Field Losses……...…………………………..…. 18 10. Figure 3.1: Classification of Communication Systems………..…………….…..….. 22 11. Figure 4.1: Block Diagram of Central Control System………...…………..………. 32 12. Figure 4.2: Finite State Machine of Central Control System………………...….….. 34 13. Figure 4.3: Block Diagram of Control-IC…………………………………..………. 36 14. Figure 4.4: Results of Repair Functionality of Control-IC………………….…….... 46
