Comparison and analysis of two filter structures for low-voltage dynamic voltage restorer

被引：0
作者：
Wang Y. [1 ]
Ma B. [1 ]
Zhang H. [2 ]
Xiao G. [2 ]
Han X. [2 ]
机构：
[1] State Key Laboratory of Large Electric Drive System and Equipment Technology, TEDRI, Tianshui
[2] School of Electrical Engineering, Xi'an Jiaotong University, Xi'an
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2019年 / 39卷 / 01期
关键词：
Dynamic voltage restorer; Grid impedance; LC filter; Parallel capacitor; Stability;
D O I：
10.16081/j.issn.1006-6047.2019.01.025
中图分类号：
学科分类号：
摘要：
DVR(Dynamic Voltage Restorer) is an important device to compensate voltage sag. According to the connecting points of filter capacitors in LC filters, DVR can be divided into output-filtering type and capacitor-load-parallel type. The performance of the two types of DVR and their influences on power grid are different. Based on the analysis and design of the two types of DVR control system, the influence of power grid impedance on stability and system performance of the two types of DVR are studied, the interference on power grid caused by the application of these two types of DVR are compared and the method for capacitor-load-parallel DVR to suppress the interference is proposed. © 2019, Electric Power Automation Equipment Press. All right reserved.
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页码：168 / 174and182
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