Research on impact on sub-synchronous resonance risk from DFIG number and grid structure in Guyuan area

被引：0
|
作者：
Yin M. [1 ]
Liu H. [2 ,3 ]
Li Y. [2 ,3 ]
Song W. [1 ]
机构：
[1] Department of Electrical and Electronic Engineering, North China Electric Power University, Baoding
[2] State Grid Jibei Electric Power Research Institute, North China Electric Power Research Institute Co. Ltd., Beijing
[3] Grid-connected Operation Technology for Wind-Solar-Storage Hybrid System State Grid Corporation Key Laboratory, Beijing
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2021年 / 42卷 / 01期
关键词：
DFIG; DFIGs and series-compensated power system; Impedance; SSR;
D O I：
10.19912/j.0254-0096.tynxb.2018-0747
中图分类号：
学科分类号：
摘要：
In this paper, the equivalent model of wind farms and series-compensated power system in Guyuan is built in RT-LAB. Based on that model, the SSR characteristics of wind farms in Guyuan area under different DFIG numbers and line parameters are investigated through impedance method. The contributions to be included in the paper are as following: 1) The relationship between SSR characteristics and DFIG number is nonlinear in Guyuan area. Under the condition of a given wind speed, there is certain number of DFIGs which will induce worst damping effect. 2) A higher compensation degree results in a less stable system. The SSR risk of the system increases with the increasing of DFIG numbers when the grid strength is high. The relationship between SSR risk and DFIG number is nonlinear when the grid strength is low. © 2021, Solar Energy Periodical Office Co., Ltd. All right reserved.
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页码：174 / 179
页数：5
相关论文
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