摘要
电气化铁路牵引负荷造成风电场风电机组跳闸脱离电网的事故在国内已发生多起。介绍了新疆境内电气化铁路供电系统和沿途的风电场,分析了负序电流对风电机组的影响,并采用了负序电流分配系数法计算了各个牵引站注入沿途风电机组的负序电流。对负序电流超标的情况提出两种加装动态无功补偿装置的治理措施及其无功补偿容量的计算方法,给出了实际中无功补偿容量的配置原则。
Several cases of wind turbine tripped off from power grid caused by electric railway traction load have happened in our country.The paper describes the power supply system for electric railway and the wind farms alongside railway in Xinjiang province,analyzes the impact of negative sequence current on the wind farms,and the negative sequence current distribution coefficient method is applied to calculate the negative sequence current.Two methods by adding dynamic reactive power compensation equipment to improve exceeding negative sequence current,as well as its compensation capacity calculation and compensation capacity configuration principle are elaborated in the article.
出处
《供用电》
2012年第1期44-46,80,共4页
Distribution & Utilization
关键词
电气化铁路
风电场
负序电流
动态无功补偿
electric railway
wind farm
negative sequence current
dynamic reactive power compensation
