即时模拟在电.doc

即時模擬在電品質分析上的應用研究生：莊士毅 指導教授：張文恭 博士國中正大學電機工程研究所摘 要近由於電電子技術的快速發展，使得電系統中的非線性負載大幅增加。電系統的模擬技術已經越越重要。在電系系統模擬的發展中，電系統的即時模擬于提供即時系統的小型化、高效的計算能、以及低成本等優點。本文呈現在含有許多的換開關的電系統中，能夠有準模擬結果與高效的軟體。所提及的方式可以在任何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，使用於動態的電系統動態模型，並且能準的抑制固定步階的模擬案所產生的問題，像是PWM轉換器與電電子驅動所產生的續的動作。最後，本文將探討一些電系統的案，證明出即時系統的效與準確的模擬結果。Applications of Real-Time Simulation on Power QualityAnalysisStudent：S. I. Chuang Supervisor：G. W. Chang, Ph. D.A ThesisSubmitted toInstitute of Electrical EngineeringCollege of EngineeringNational Chung Cheng Universityin Partial Fulfillment of the Requirementsfor the Degree ofMasterin Electrical EngineeringJuly 2006Chiayi, Taiwan, Republic of ChinaAbstractBecause the nonlinear distorting loads are widely used in theapplication of industrial equipment, the simulation technique of powersystem becomes very important. With the advanced development of thesimulation techniques, real-time simulation of the power system providesmany advantages, such as the smaller size of the real-time system,computational efficiency, and low maintenance cost. This thesis presentsnew simulation software that allows efficient and accurate fixed-stepsimulation for complex power system including many power electronicswitches. The proposed method accurately simulates linear system withdiscontinuities occurring anywhere between time steps. This newsoftware effectively overcomes difficult fixed-step simulation case, suchas multiple single time-step discontinuities encountered in the simulationof electric drive and PWM converters and is used for the simulation ofpower system dynamics being implemented in the Matlab/Simulaink.Finally, several simulation cases are illustrated