臺灣博碩士論文加值系統

近年來由於電力電子技術的快速發展，使得電力系統中的非線性負載大幅增加。電力系統的模擬技術已經越來越重要了。在電力系系統模擬的發展中，電力系統的即時模擬于提供即時系統的小型化、高效率的計算能力、以及低成本等優點。本論文呈現在含有釵h的切換開關的電力系統中，能夠有精準模擬結果與高效率的軟體。所提及的方式可以在任何切換時間步階準確模擬時間片段線性系統。該軟體附加於Matlab/Simulaink等模擬軟體中，使用於動態的電力系統動態模型，並且能精準的抑制固定步階的模擬案例所產生的問題，像是PWM轉換器與電力電子驅動所產生的不連續的動作。最後，本論文將探討一些電力系統的案例，證明出即時系統的效率與準確的模擬結果。

Because the nonlinear distorting loads are widely used in the application of industrial equipment, the simulation technique of power system becomes very important. With the advanced development of the simulation techniques, real-time simulation of the power system provides many advantages, such as the smaller size of the real-time system, computational efficiency, and low maintenance cost. This thesis presents new simulation software that allows efficient and accurate fixed-step simulation for complex power system including many power electronic switches. The proposed method accurately simulates linear system with discontinuities occurring anywhere between time steps. This new software effectively overcomes difficult fixed-step simulation case, such as multiple single time-step discontinuities encountered in the simulation of electric drive and PWM converters and is used for the simulation of power system dynamics being implemented in the Matlab/Simulaink. Finally, several simulation cases are illustrated to show the usefulness and computational efficiency with the real-time system simulation.

Table of Contents
Acknowledgments Ⅰ
Table of Contents Ⅱ
List of Figures VI
List of Tables IX
Abstract X
Chapter 1 Introduction 1
Chapter 2 Real-Time Simulation on Power Quality Analysis 4
2.1 Evolution for Real-Time Simulation 4
2.2 Real-Time Simulation Technique 7
2.3 Applications of Real-Time Simulation 11
2.4 Efficiency and Functions of Real-Time Simulation 12
Chapter 3 Matlab-based Real-Time Simulation Environment 14
3.1 Functions and Characteristics of Software 14
3.1.1 Real-Time Workshop (RTW) and Software Development 14
3.1.2 xPC Target 17
3.2 Functions and Characteristics of Hardware 22
3.2.1 Host Personal Computer 22
3.2.2 Target Personal Computer 23
3.3 Real-Time Hardware-in-the-Loop Simulation 24

Chapter 4 Real-Time Simulation Solver 26
4.1 Conventional Solution Method and Its Theorem 26
4.1.1 Simulation in Variable Step 26
4.1.1.1 Discrete State 26
4.1.1.2 One-step Method 26
4.1.1.2.1 Euler’s Method 27
4.1.1.2.2 Improved Euler’s Method 28
4.1.1.3 Multistep Method 29
4.1.1.4 Adaptive Method 29
4.1.1.4.1 Runge-Kutta-Fehlberg Method 30
4.1.2 Simulation in Fixed Step 31
4.1.2.1 Discrete State 31
4.1.2.2 Continued Solver 32
4.1.2.2.1 Ode4, the Fourth-Order Runge-Kutta Method 32
4.1.2.2.2 Ode3, the Bogacki-Shampine Formula 32
4.1.2.2.3 Ode2, Heun's Method 33
4.2 Switching Theorem in the Fixed-Step Simulation of Power System Model including Power Electronics 34
4.3 Real-Time Electro-Mechanical Transient Simulator (ARTEMIS) 36
4.3.1 Efficiency and Functions of ARTEMIS 37
4.3.2 Solution Method and Theorem for ARTEMIS 43
Chapter 5 Case Studies 44
5.1 Three Interlaced Converters 44
5.1.1 Conventional simulation 46
5.1.2 Real-time simulation 47
5.1.2.1 Real-Time Simulation with PowerGUI 47
5.1.2.2 Real-Time Simulation with ARTEMIS 48
5.2 Adjustable Speed Drive (ASD) 50
5.2.1 Conventional Simulation 52
5.2.2 Real-Time Simulation 52
5.2.2.1 Real-Time Simulation with PowerGUI 52
5.2.2.2 Real-Time Simulation with ARTEMIS 53
5.3 Surge Arresters Used in a Series and Shunt Compensated Transmission System 54
5.3.1 Conventional Simulation 55
5.3.2 Real-Time Simulation 58
5.3.2.1 Real-Time Simulation with PowerGUI 58
5.3.2.2 Real-Time Simulation with ARTEMIS 60
5.4 Five-Bus Power System Model Containing Six-Pulse Adjustable-Speed Drive (ASD) 62
5.4.1 Conventional Simulation 63
5.4.2 Real-Time Simulation 65
5.4.2.1 Real-Time Simulation with PowerGUI 65
5.4.2.2 Real-Time Simulation with ARTEMIS 67
Chapter 6 Conclusions and Future Works 71
6.1 Conclusions 71
6.2 Future Works 72
References 73
Vita

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