Improvement in Dynamic Performance of Indirect Current Control Strategy on Three Phase PWM Rectifier

Xiao Chen Wang; Jiang Ming Yang; Hong Mei Li; Feng Xiang Sun

doi:10.4028/www.scientific.net/AMR.433-440.7281

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 433-440Improvement in Dynamic Performance of Indirect...

Improvement in Dynamic Performance of Indirect Current Control Strategy on Three Phase PWM Rectifier

Abstract:

Three phase voltage source PWM rectifier (VSR)’s indirect current control (ICC) strategy has good static performance, simple control steps and low cost. But bad dynamic performance is its inherent drawback. If this weakness is overcome, it is still valued. In this article normal ICC is deeply studied beginning with its mathematical model under synchronous rotating coordinate. It is indicated that its bad dynamic performance originates from bad current response. So an improving scheme adding compensation in series is brought out. Additionally a differential negative feedback loop of DC output voltage is added to limit the voltage overshoot. Lastly the control system’s computer simulation model is established by MATLAB and the simulating results prove that improved ICC makes great process in dynamic performance and has advantages of both indirect and direct current control (DCC).

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Periodical:

Advanced Materials Research (Volumes 433-440)

Pages:

7281-7286

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.433-440.7281

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Online since:

January 2012

Authors:

Xiao Chen Wang, Jiang Ming Yang, Hong Mei Li, Feng Xiang Sun

Keywords:

Compensation in Series, Dynamic Performance, Indirect Current Control (ICC), Simulation, Three Phase VSR

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