Abstract：Proportional-resonant control with harmonic compensator of PWM rectifiers can selectively eliminate grid current harmonic. However, the eliminated current harmonic order is limited by the current loop bandwidth. To make current loop stable, delay compensation must be considered when higher order harmonics need to be eliminated. With the increasing of eliminated harmonic numbers, the controller computation expense will become heavy. The influence of grid voltage harmonic on grid current is analyzed in this paper. The grid voltage predictive method is proposed to minimize the grid current harmonic as well as to obtain high dynamic performance with proportional-resonant current controller. Experimental results show that the grid current harmonic caused by grid voltage harmonic can be eliminated effectively by the proposed method.
高吉磊, 林飞, 郑琼林. 基于网压预测的单相PWM整流器比例谐振控制[J]. 电工技术学报, 2011, 26(5): 45-45.
Gao Jilei, Lin Fei, Trillion Q Zheng. Proportional-Resonant Control of Single-Phase PWM Rectifiers Based on Grid Voltage Prediction. Transactions of China Electrotechnical Society, 2011, 26(5): 45-45.
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