The Minimum Energy Soft-Switching Control Strategy for Dynamic Voltage Restorer

被引：0
|
作者：
Tu C. [1 ]
Sun Y. [1 ]
Guo Q. [1 ]
Jiang F. [2 ]
Zhang L. [1 ]
机构：
[1] National Electric Power Conversion Control Engineering Technology Research Center, Hunan University, Changsha
[2] School of Electrical and Information Engineering, Changsha University of Science & Technology, Changsha
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2019年 / 34卷 / 14期
关键词：
Dynamic voltage restorer; Minimum energy compensation; Phase angle jumping; Soft-switching;
D O I：
10.19595/j.cnki.1000-6753.tces.180726
中图分类号：
学科分类号：
摘要：
The minimum energy compensation strategy for dynamic voltage restorer (DVR) can effectively reduce the output of active power and prolong the compensation duration. The grid voltage sag is often accompanied by phase angle jumping, and the traditional minimum energy compensation also causes phase angle jumping in load voltage when grid voltage sag and recovery. Therefore, a minimum energy soft-switching control strategy is proposed, which ensures DVR smooth into and smooth out the minimum energy compensation. Thus, it can solve the problem of load voltage phase angle jumping as well as reducing the output of active power. In addition, taking into account the maximum output capability of DVR, the reference voltage can be dynamically adjusted within the limit level during the compensation. The simulation and experimental results verify the correctness of the theoretical analysis. © 2019, Electrical Technology Press Co. Ltd. All right reserved.
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页码：3035 / 3045
页数：10
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