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.
作者
杜维柱
罗亚洲
李蕴红
吴林林
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)
出处
《中国电机工程学报》
EI
CSCD
北大核心
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。
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
transient overvoltage
wind power collection area
wind turbine off-grid
fault ride-through
weak AC grid
line-commutated-converter based high voltage direct current(LCC-HVDC)
