Impedance boundary analysis of distributed generation system based on VSG control

被引：0
|
作者：
Chen J. [1 ]
Li Z. [1 ]
Zhang Q. [2 ]
Cai X. [2 ]
Xiong K. [2 ]
机构：
[1] College of Information Science and Technology, Donghua University, Shanghai
[2] School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai
来源：
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2019年 / 47卷 / 21期
基金：
中国国家自然科学基金;
关键词：
Power decoupling; Power transmission limit; Small signal stability; System load change; Virtual impedance;
D O I：
10.19783/j.cnki.pspc.181413
中图分类号：
学科分类号：
摘要：
To solve the issue of operational stability of a distributed generation system controlled by Virtual Synchronous Generator (VSG) method when it is integrated into distributed grid, a method to determine the impedance boundaries of a grid-connected VSG controlled converter is proposed. And the impedance boundary conditions are deduced which can satisfy the power control performance, stability limit, system load allowable range and small signal stability of the grid-connected converter at the same time. A configuration method of virtual impedance is then proposed which makes the system have both good dynamic control performance and stability. The Matlab/Simulink simulation results verify the effectiveness of the system impedance boundary and the virtual impedance configuration method. Some results of experimental cases are also given. © 2019, Power System Protection and Control Press. All right reserved.
引用
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页码：30 / 40
页数：10
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