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Research on STATCOM Based on DSP in Distribution System

Author: ZhangJunLi
Tutor: ZhongYanRu；ZhangHui
School: Xi'an University of Technology
Course: Proceedings of the
Keywords: Distribution system static synchronous compensator Predictive PI Control strategy Switching function method Dynamic performance
CLC: TM761.1
Type: Master's thesis
Year: 2007
Downloads: 531
Quote: 6
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Abstract


Static Synchronous Compensator power distribution system is one of the power systems in recent years , the study of dynamic reactive power compensation device . This paper analyzes the comparison of DSTATCOM with the traditional reactive power compensation device difference between its advantages and at home and abroad DSTATCOM Research described . Currently the the DSTATCOM main circuit bridge circuit for voltage and current bridge circuit , this article uses voltage bridge circuit , and detailed description of the bridge circuit voltage type the DSTATCOM the work principle by analyzing visible DSTATCOM performance superior to SVC traditional reactive power compensation device , the switching function established mathematical model of DSTATCOM . Instantaneous reactive power theory used in this article i_p derived on the basis of the analysis of the concept of non-sinusoidal circuit reactive power , reactive current detection process i_q op mode ; The DSTATCOM the direct current control mode and current control method indirect control methods, the design uses dual variable indirect current control mode coordinated control strategy , which the reactive current predictive PI control DC voltage using conventional PI control method . The occurrence of the pulse wave high utilization of DC voltage , switching losses , low harmonic content SVPWM modulation . Subject to TI TMS320LF2407A DSP as the control center to the main circuit voltage source converter integrated IGBT intelligent power module IPM structures DSTATCOM the experimental device , and the proposed control method for debugging from experiments the results can be seen the reactive current forecasts used in this paper the dynamic performance of the PI control is better than conventional PI control mode the DSTATCOM device 's performance basically meet the design requirements .

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CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Power system automation > Automatically adjusts > Automatic adjustment of voltage and reactive power
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