Research on Frequency Self-recovery Control for Virtual Synchronous Generator in Island Microgrid

被引：0
|
作者：
Zhang Y. [1 ]
Zhao X. [1 ]
Fang Y. [1 ]
机构：
[1] School of Electrical Engineering, Shanghai University of Electric Power, Yangpu District, Shanghai
来源：
Dianwang Jishu/Power System Technology | 2019年 / 43卷 / 06期
关键词：
Energy storage; Frequency self-recovery (FSR); Microgrid; Virtual synchronous generator (VSG);
D O I：
10.13335/j.1000-3673.pst.2018.1356
中图分类号：
学科分类号：
摘要：
In island microgrid controlled with virtual synchronous generators (VSGs), in order to obtain good dynamic response characteristics of frequency, a frequency self-recovery control strategy (FSR) based on virtual synchronous generator is proposed using the idea of energy storage participating in secondary frequency modulation of power network. Then stability of dual-machine secondary frequency modulation system is analyzed. The control strategy can automatically switch between primary and secondary frequency modulation control strategies according to frequency offset, effectively restrain frequency over-limit and quickly recover frequency. Moreover, frequency stability of the island microgrid can be improved effectively with high reliability without complex communication system. Simulation results verify effectiveness of the proposed method. © 2019, Power System Technology Press. All right reserved.
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页码：2125 / 2131
页数：6
相关论文
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