Research on Transient Characteristic Optimization of Virtual Synchronization Generator Control Strategy

被引：0
|
作者：
Wang Y. [1 ]
Liu B. [1 ]
Duan S. [1 ]
Xu J. [2 ]
机构：
[1] State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, 430074, Hubei Province
[2] XJ Electric Co. Ltd, Xuchang, 461000, Henan Province
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2019年 / 39卷 / 20期
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
Grid frequency disturbance; Grid- connected converter; Modified VSG; Transient performance; Virtual synchronous generator (VSG);
D O I：
10.13334/j.0258-8013.pcsee.182436
中图分类号：
学科分类号：
摘要：
Virtual synchronous generators (VSGs) have the advantage of reducing the maximum frequency deviation of the power reference step response, but there is a risk of increasing power oscillation and overshoot, which is disadvantageous for easily damaged grid-connected converters. Unlike real synchronous generators, VSGs can modify their parameters and control structures flexibly to enhance their transient response performance. Therefore, this paper proposed two virtual inertial control strategies based on grid frequency information, and gave out the corresponding parameter design methods. In addition, the transient power response and transient frequency response under typical disturbance conditions of power reference and grid frequency were compared. The simulation and experimental results show that compared with traditional method, both modified strategies can improve VSG transient performance. © 2019 Chin. Soc. for Elec. Eng.
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收藏
页码：5885 / 5893
页数：8
相关论文
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