Stability analysis of microgrid based on virtual synchronous generator control

被引：0
|
作者：
Chao K. [1 ]
Miao S. [1 ]
Liu Z. [1 ]
Fan Z. [1 ]
Kang Y. [1 ]
Duan S. [1 ]
Liu J. [1 ]
机构：
[1] State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Hubei Electric Power Security and High Efficiency Key Laboratory, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan
来源：
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2019年 / 47卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Bifurcation theory; Microgrid; Nonlinear state space modeling; Stability analysis; Virtual synchronous machine;
D O I：
10.7667/PSPC180160
中图分类号：
学科分类号：
摘要：
With the massive access of power electronic devices in the microgrid, the dynamic characteristics of multiple power sources and loads are coupled with each other, which makes the problem of stability analysis in the microgrid system become a hot spot. In this paper, based on the virtual synchronous motor control of microgrid systems, a multi-distributed power system nonlinear state-space modeling method is proposed, and a unified state-space equation of microgrid with distributed power, line and load is established. Based on the established state-space equation, the eigenvalue analysis is used to study the factors that affect the stability of the microgrid system. Then the bifurcation theory is used to study the influence of the key parameters of the virtual synchronous motor control and the system topology parameters on system stability. The microgrid model based on virtual synchronous motor control is built on the PSCAD/ETMDC simulation platform, which verifies the correctness and effectiveness of the proposed method. © 2019, Power System Protection and Control Press. All right reserved.
引用
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页码：9 / 16
页数：7
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