Synergetic control and fault characteristics analysis of hybrid wind farm considering resistance-capacitance crowbar

被引：0
|
作者：
Feng H. [1 ]
Shu H. [1 ]
Yang X. [2 ]
Song J. [1 ]
Deng H. [1 ]
Zhou Z. [1 ]
Chen Y. [1 ]
Zhang P. [1 ]
机构：
[1] Kunming University of Science and Technology, Kunming
[2] Wuhan University, Wuhan
来源：
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2024年 / 52卷 / 08期
基金：
中国国家自然科学基金;
关键词：
cooperative control strategy; hybrid wind farm; resistance-capacitance crowbar; short-circuit current;
D O I：
10.19783/j.cnki.pspc.231124
中图分类号：
学科分类号：
摘要：
There is a problem that the low-voltage ride-through measures of a hybrid wind farm are complex and difficult to cooperate with and the fault characteristics after low-voltage ride-through are difficult to analyze. Thus it is proposed that a resistance-capacitance crowbar is applied to the doubly-fed wind turbine to improve the frequency offset and reactive power characteristics of the hybrid wind farm during low-voltage ride-through. First, the models of doubly-fed wind turbine group and permanent magnet direct-drive wind turbine group are established, and a simplified equivalent model of a hybrid wind farm is established by the method of grouping and aggregating equivalence. Then the reactive power regulation ability and regulation characteristics of various types of wind turbines during a fault in the hybrid wind farm considering the resistance-capacitance crowbar are analyzed. The reactive power cooperative control strategy of the hybrid wind farm is formulated to optimize the reactive power output capacity during low voltage ride-through. The short-circuit characteristics of the hybrid wind farm after adopting the cooperative control strategy are analyzed and the short-circuit current is analyzed. Finally, based on PSCAD/EMTDC simulation software, a hybrid wind farm simulation model is established to verify the effectiveness of the collaborative strategy and the correctness of the fault current expression. © 2024 Power System Protection and Control Press. All rights reserved.
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页码：111 / 122
页数：11
相关论文
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