双馈风机送出线路的暂态响应特征及保护适应性分析  

Transient response characteristics and protection adaptability analysis of doubly-fed induction generation transmission lines

作　　者：韩伟 张宇轩 郝高锋 黄太昱 刘磊 李笑宇 宋国兵[2] HAN Wei;ZHANG Yuxuan;HAO Gaofeng;HUANG Taiyu;LIU Lei;LI Xiaoyu;SONG Guobing(State Grid Henan Electric Power Research Institute,Zhengzhou 450052,China;School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[1]国网河南省电力公司电力科学研究院,河南郑州450052 [2]西安交通大学电气工程学院,陕西西安710049

出　　处：《电工电能新技术》2025年第2期24-32,共9页Advanced Technology of Electrical Engineering and Energy

基　　金：国网河南省电力公司科技项目(52170223000W)。

摘　　要：本文从相量提取的角度分析双馈风机暂态响应特征对工频量保护的影响。首先分析不同故障深度下,双馈风机暂态响应与转子侧换流器以及Crowbar电路之间的关系,得到不同深度故障下双馈风机暂态响应特性;然后在暂态响应分析结论基础上,从相量提取的角度分析不同故障深度下,双馈风机暂态响应对交流线路差动保护和距离保护的影响,给出了保护不正确动作的场景,并结合故障分析结论说明不正确动作的原因。This article analyzes the impact of transient response characteristics of doubly-fed induction generation on traditional protection from the perspective of phasor extraction.Firstly,this article analyzed the relationship between the transient response of doubly-fed induction generation and the rotor side converter as well as crowbar circuit under different fault depths,and obtained conclusions on the transient response analysis of doubly-fed induction generation under different voltage drop levels.Secondly,based on the conclusion of the fault analysis,the impact of the transient response of doubly-fed induction generation on the differential protection and distance protection of the AC line under different fault depths was analyzed from the perspective of phasor extraction.Finally,scenarios of protection malfunction were provided in the article,and reasons for malfunction were explained combined with the fault analysis conclusion.

关 键 词：双馈风机 故障分析 暂态响应 适应性分析 

分 类 号：TM773[电气工程—电力系统及自动化]