摘要
近年来,某电网的频率合格率指标一直为100%,没有发生频率越限的事故。但通过对比发现,频率在0.05 Hz附近的波动幅度和频数较以前有所增加,利用统计方法分析各因素的相关性和相关程度,并讨论解决办法。
In recent years,frequency qualified rate index of some power grid has reached 100%with no frequency accident occurred.By comparison,frequency qualified rate index in 0.05 Hz has been increased.This paper analyzes the correlation and the degree of cor-relation by using statistical methods.
作者
刘洋
王聪颖
陈瑾平
姚恺丰
杨雪瑞
LIU Yang;WANG Congying;CHEN Jinping;YAO Kaifeng;YANG Xuerui(Northeast Branch Electricity Regulation Center of State Grid Corporation of China,Shenyang,Liaoning 110018,China;China Energy Engineering Group Liaoning Electric Power Survey&Design Institute Co.,Ltd.,Shenyang,Liaoning 110180,China)
出处
《东北电力技术》
2018年第5期28-30,33,共4页
Northeast Electric Power Technology
关键词
频率波动
统计方法
相关性
frequency fluctuation
statistical methods
correlation
