Study on the influence of supply-voltage fluctuation on shunt active power filter

被引：51

作者：

Wu Longhui ^{[1
]}

Zhuo Fang ^{[1
]}

Zhang Pengbo ^{[1
]}

Li Hongyu ^{[1
]}

Wang Zhaoan ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Peoples R China

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 2007年 / 22卷 / 03期

关键词：

feedforward control; PI current regulator; shunt active power filter; supply-voltage fluctuation;

D O I：

10.1109/TPWRD.2007.899786

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Is there any influence of supply-voltage fluctuation on the shunt active power filter? Few papers have discussed this problem. In this paper, based on the instantaneous power balance of shunt active power filter ac-side and dc-side, a small-signal model of de-link voltage control is derived. According to this small-signal model, the influence of supply-voltage fluctuation on the dc-link voltage of shunt active power filter is analyzed in detail. The conclusion is that the supply-voltage fluctuation has influence on the dc-link voltage of shunt active power filter. Then a feed-forward control method of supply-voltage and compensation current is proposed to eliminate the influence. The proposed feedforward control method can be easily implemented in practical. In this paper, the influence of supply-voltage fluctuation on compensation performance of shunt active power filter is also analyzed when the dc-link voltage is constant. From the analysis, it can be concluded that current controller with PI regulator has better performance to suppress the influence of the supply-voltage fluctuation. Finally, the experimental results are given to demonstrate the conclusions.

引用

页码：1743 / 1749

页数：7

共 10 条

[1] New trends in active filters for power conditioning [J].