A Self-Adaptive Damping Control Strategy of Virtual Synchronous Generator to Improve Frequency Stability

被引：8
|
作者：
Li, Tianyang [1 ,2 ]
Wen, Buying [1 ,2 ]
Wang, Huaiyuan [1 ,2 ]
机构：
[1] Fuzhou Univ, Coll Elect Engn & Automat, Fujian Smart Elect Engn Technol Res Ctr, Fuzhou 350116, Peoples R China
[2] Fuzhou Univ, Jinjiang Sci & Educ Pk, Quanzhou 362200, Peoples R China
来源：
PROCESSES | 2020年 / 8卷 / 03期
关键词：
virtual synchronous generator; frequency stability; self-adaptive control; damping; SYNCHRONVERTERS INVERTERS; DROOP CONTROL; SYNCHRONIZATION;
D O I：
10.3390/pr8030291
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In a microgrid, grid-connected inverters, as the interface between the distributed power supply and grid, cannot provide inertia support for the system. The control strategy of virtual synchronous generator (VSG) based on grid-connected inverters can enhance the stability of system frequency. In order to make the frequency response that has a smaller overshoot and a shorter settling time, a self-adaptive damping control strategy based on the relationship between the damping and the maximum frequency deviation for microgrid VSG is presented. The small-signal mathematical model of VSG is established, and the range of the damping coefficient is determined. Finally, simulation experiments are carried out with MATLAB/Simulink, and the effectiveness of the proposed control strategy is verified by comparing it with various damping control methods.
引用
收藏
页数：14
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