Adaptive damping control strategy of virtual synchronous generator for frequency oscillation suppression

2016 ◽  
Author(s):  
Tianwen Zheng Tianwen Zheng ◽  
Laijun Chen Laijun Chen ◽  
Ren Wang Ren Wang ◽  
Chun Lai Li Chun Lai Li ◽  
Shengwei Mei Shengwei Mei
Keyword(s):  
Control Strategy ◽  
Synchronous Generator ◽  
Frequency Oscillation ◽  
Damping Control ◽  
Oscillation Suppression ◽  
Virtual Synchronous Generator

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

Processes ◽  
2020 ◽  
Vol 8 (3) ◽  
pp. 291 ◽  
Author(s):  
Tianyang Li ◽  
Buying Wen ◽  
Huaiyuan Wang
Keyword(s):  
Control Strategy ◽  
Synchronous Generator ◽  
Control Methods ◽  
Simulation Experiments ◽  
Damping Control ◽  
The Stability ◽  
System Frequency ◽  
The Relationship ◽  
Virtual Synchronous Generator ◽  
Self Adaptive

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.

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