风电汇集系统无功盈余导致暂态过电压问题的研究综述  

Reviews of Transient Overvoltage Problem Cause by Extra Reactive Power in Large Scale Wind Power Systems

作　　者：杜维柱 罗亚洲 李蕴红 吴林林[1] 赵峰 孙大卫 DU Weizhu;LUO Yazhou;LI Yunhong;WU Linlin;ZHAO Feng;SUN Dawei(State Grid Wind-Photovoltaic-Energy Storage Hybrid Power Generation Technology Laboratory(State Grid Jibei Electric Power Research Institute),Xicheng District,Beijing 100045,China;North China Branch of State Grid Corporation of China,Xicheng District,Beijing 100053,China)

机构地区：[1]国家电网公司风光储联合发电运行技术实验室(国网冀北电力科学研究院),北京市西城区100045 [2]国家电网有限公司华北分部,北京市西城区100053

出　　处：《中国电机工程学报》2022年第9期3224-3238,共15页Proceedings of the CSEE

基　　金：国家电网公司华北分部科技项目:无功补偿装置对暂态过电压的影响机理及优化控制技术研究。

摘　　要：近年来,风电高速发展,“风资源丰富地区建设多个风电场—经110/220kV线路将多风电场汇集—经超/特高压交/直流输电系统集中送出”是近年来风电送出系统发展的主要模式。目前中国西北/东北/华北等地的风电汇集地区配套火电机组少,无功–电压灵敏度高,发生典型交/直流故障后,存在暂态过电压问题,可能导致风机大面积脱网,影响系统安全,制约风电消纳。该文从四方面对风电汇集地区暂态过电压问题研究现状进行综述:1)暂态过电压产生机理;2)暂态过电压的相关标准与潜在危害;3)暂态过电压问题的特点与分析方法;4)暂态过电压应对措施,并提出后续研究建议和展望。In recent years,wind power has developed rapidly.“Building multiple wind farms in specific area—concentrating wind farms via 110/220kV lines—centrally sending out via ultra/ultra high voltage(EHV/UHV)AC/DC transmission systems”is the main development mode of the current wind power transmission system.At present,the large-scale wind power systems in North China and other places have few thermal generators and high reactive power-voltage sensitivity.After typical AC/DC faults,there are transient overvoltage problems,which may cause serious wind turbines tripping accident,affect the system safety,and restrict wind power consumption.In this paper,major researches on:1)the generation mechanism of transient overvoltage;2)the regulations and harms of transient overvoltage to wind farms;3)features and analysis methods of transient overvoltage problem;and 4)transient overvoltage countermeasures,were reviewed respectively to introduce the current research about transient overvoltage in large-scale wind power system.The follow-up research suggestions and prospects were put forward.

关 键 词：暂态过电压 风电汇集地区 风机脱网 故障穿越 弱交流电网 电网换相换流器高压直流输电 

分 类 号：TM721[电气工程—电力系统及自动化]