Study on Compound Control Technology of Single-phase Dynamic Voltage Restorer
Shi Ye1,Wu Zaijun1,Dou Xiaobo1,Hu Minqiang1,Zhao Bo2
1.School of Electrical Engineering Southeast University Nanjing 210096 China 2.Zhejiang Electric Power Corporation Research Institute Hangzhou 310014 China
Abstract：In this paper,a novel composite control strategy is proposed,which contains the load current direct feedforward control strategy for the inner loop and the improved proportional resonant (PR) feedback control strategy for the outer loop.The fundamental voltage and current vectors are extracted by an improved adaptive algorithm.Then the reference values of the voltage loop and the current loop are got via vector calculation based on the reactive power compensation strategy.In this way,the suggested compound control technology can enhance the stability and fasten the responding speed at the same time for the dynamic voltage restorer (DVR) and make it suitable for compensating fundamental and harmonic frequency fluctuation and has the ability of power factor correction.The feasibility and effectiveness of the proposed algorithm are verified by the simulation and the experimental results.
施 烨,吴在军,窦晓波,胡敏强,赵 波. 单相动态电压恢复器复合控制技术[J]. 电工技术学报, 2015, 30(17): 85-95.
Shi Ye,Wu Zaijun,Dou Xiaobo,Hu Minqiang,Zhao Bo. Study on Compound Control Technology of Single-phase Dynamic Voltage Restorer. Transactions of China Electrotechnical Society, 2015, 30(17): 85-95.
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2015, Vol. 30 
