Impedance Modeling and Analysis of Single-Phase Dynamic Voltage Restorer

被引：0
作者：
Zhang, Houkai [1 ]
Xiao, Guochun [1 ]
Ning, Gaidi [1 ]
Wang, Youyun [2 ]
Ma, Baohui [2 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Elect Engn, Xian, Shaanxi, Peoples R China
[2] State Key Lab Large Elect Drive Syst & Equipment, Tianshui, Peoples R China
来源：
2018 IEEE INTERNATIONAL POWER ELECTRONICS AND APPLICATION CONFERENCE AND EXPOSITION (PEAC) | 2018年
基金：
美国国家科学基金会;
关键词：
dynamic voltage restorer; impedance modeling; linearization; stability;
D O I：
暂无
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：
Dynamic Voltage Restorer (DVR) is one of the most cost-effective equipment to mitigate voltage sag, which has been widely used. However, the application of DVR also inevitably influences the stability of the interconnected system. To analyze the stability problems that DVR brings to the interconnected system, it is necessary to study the impedance characteristics of the DVR. In this paper, an impedance model of the single-phase DVR is established based on the linear model of the single-phase DVR in detail; then, the stability criterion of the single-phase interconnected system with DVR is deduced using the impedance model of DVR. Simulations results indicate that the impedance model, as well as the stability criterion, is applicable in a wide frequency band.
引用
收藏
页码：2238 / 2242
页数：5
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