Interaction of sub-synchronous oscillation between wind turbine clusters in wind farm

被引：0
|
作者：
Xu Y. [1 ]
Teng X. [1 ]
机构：
[1] School of Electrical and Electronic Engineering, North China Electric Power University, Beijing
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2020年 / 40卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Admittance model; Generalized Nyquist criterion; Interaction; Sub-synchronous oscillation; Wind farms; Wind turbines;
D O I：
10.16081/j.epae.202008019
中图分类号：
学科分类号：
摘要：
There are a large number of wind turbines with different control parameters, different operation states and even various types in a large-scale wind farm, and the SSO(Sub-Synchronous Oscillation) problem caused by their grid-connection becomes increasingly prominent. The SSO interaction between different wind turbine clusters in a wind farm and their influential factors are studied, so as to clarify the SSO evolution process in wind farm. The grid-connected admittance model of PMSG(Permanent Magnet Synchronous Gene-rator) wind farm is established. The generalized Nyquist criterion is applied to analyze the SSO stability of different grid-connected wind turbine clusters in wind farm. Based on these, the SSO interaction between different wind turbine clusters in wind farm is studied. The results indicate that the "stable wind turbine cluster" also occurs SSO because of the "oscillating wind turbine cluster". The ratio of their grid-connected wind turbine number has a significant influence on SSO characteristics. The phase locked loop parameters of "oscillating wind turbine cluster" have an impact on SSO frequency of the entire wind farm. The grid-connected simulation model of PMSG wind farm is built in MATLAB/Simulink and the time-domain simula-tive results verify the correctness of above theoretical analysis. © 2020, Electric Power Automation Equipment Press. All right reserved.
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页码：156 / 162
页数：6
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