变电站站间联络率研究  

Research on Tie-lines Ratio Between Substations

作　　者：刘思源[1] 林凌雪[1] 肖鸣晖 

机构地区：[1]华南理工大学,广州510640

出　　处：《吉林电力》2016年第5期20-23,共4页Jilin Electric Power

摘　　要：目前,国内外关于优化变电站站间联络率从而提高供电可靠性的研究十分有限,针对这一现状,计及110kV变电站电气主接线和设备运行状态,从可靠性的角度出发,在主变压器满足N-1原则的基础上,以系统电量不足指标(ENSI)最小为优化目标,研究变电站出线的最优站间联络比率。应用基于MATLAB的多元线性回归模型推导联络率与变电站主变压器数量、变电站负载率之间的函数关系,建立模型求解,得到了变电站最佳站间联络率。At present,researches on the tie-lines ratio between substations is limited,while optimizing the tie-lines ratio between substations is an effective measure to improve the reliability of power supply.In response to this situation,taking into account 110 kV electrical substation＇s main wiring and equipment operating status,from the perspective of reliability,based on the main transformer meeting N-1principle,and aiming at minimizing the energy not supplied index（ENSI）,this paper researched the optimizing substation outlet tie-lines ratio between substations,derived the function by applying multiple linear regression model based on MATLAB for tie-lines ratio with main transformers of substation number and substation load ratio,established a model to obtained the optimizing substation outlet tie-lines ratio between substations.

关 键 词：变电站 站间联络率 电力系统可靠性 电量不足指标(ENSI) N-1原则 多元线性回归 

分 类 号：TM63[电气工程—电力系统及自动化]