Adaptive Virtual Impedance Control Based on Decoupling Droop in Microgrid With Synchronous Generators

被引：0
|
作者：
Dai W. [1 ]
Qin W. [1 ]
Ren C. [1 ]
Wang Q. [1 ]
Hao G. [1 ]
机构：
[1] Shanxi Key Laboratory of Power System Operation and Control, Taiyuan University of Technology, Taiyuan, 030024, Shanxi Province
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2020年 / 40卷 / 14期
基金：
中国国家自然科学基金;
关键词：
Adaptive virtual impedance; Current limiting; Current sharing; Droop controlled inverter; Microgrid; Synchronous generator;
D O I：
10.13334/j.0258-8013.pcsee.190793
中图分类号：
学科分类号：
摘要：
In microgrid, the output capacity of the droop controlled inverter is undermined parallel with synchronous generator, even the operation of the islanded microgrid is under risk due to its faster output response and low voltage transmission situation. Operating with power angle based on its changing amplitude under resistive induction situation, an adaptive virtual impedance lying on the output current of the inverter and the command from central controller was proposed, which improves the power sharing and the stability between the inverter and synchronous generator. Small-signal analysis was used to set the virtual impedance parameters, and validation was provided by simulation and experimental results. © 2020 Chin. Soc. for Elec. Eng.
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页码：4486 / 4495
页数：9
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