Coordinated control method of virtual inertia and virtual damping for interconnected power system with doubly-fed wind farm

被引：0
|
作者：
Yang T. [1 ]
Liao Y. [1 ]
机构：
[1] State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing
来源：
| 1600年 / Electric Power Automation Equipment Press卷 / 40期
关键词：
Power system stability; System identification; Virtual damping; Virtual inertia; Virtual synchronous generator;
D O I：
10.16081/j.epae.202007032
中图分类号：
学科分类号：
摘要：
The relative inertia and damping of interconnected power system will be reduced at the same time due to the large-scale access of wind farms. VSG(Virtual Synchronous Generator) technology can effectively support the grid frequency, but there are few research results on virtual damping of VSG technology at present. In order to make more effective use of VSG virtual damping and further improve the stability of power system with high wind power permeability, the mathematical relationship between VSG controller parameters, virtual inertia and virtual damping is derived. In view of the contradiction between VSG virtual inertia and virtual damping regulation, a coordinated control strategy of VSG controller parameters combining online identification of dominant oscillation mode and particle swarm optimization algorithm is proposed. Finally, the effectiveness of the proposed control strategy is verified by a two-area interconnected power system simulation model including doubly-fed wind farm. The simulative results show that the proposed control strategy can achieve comprehensive optimization of system frequency stability and power stability. © 2020, Electric Power Automation Equipment Press. All right reserved.
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页码：92 / 98
页数：6
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