配变低压无功补偿装置的运行状态评估指标体系  

Index system of operational status evaluation for reactive-power compensation device at low-voltage side of distribution transformer

作　　者：颜伟[1] 陈思柔[1] 沈海江 赵霞[1] 余娟[1] 

机构地区：[1]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400044 [2]萧山供电局,浙江杭州311202

出　　处：《电力自动化设备》2016年第4期25-31,共7页Electric Power Automation Equipment

基　　金：输配电装备及系统安全与新技术国家重点实验室自主研究课题(2007DA10512712203)~~

摘　　要：由于配变低压侧负荷的不对称性及多样性,基于简单导则规定及工程经验所设计的低压无功补偿装置很难满足配变负荷实时的无功补偿需求,严重影响了无功补偿的调压降损效果。根据装置每日间隔5 min的三相量测数据,建立一套配变低压无功补偿装置的运行状态评估指标体系,其评估结果能够明确配变低压侧的电压无功问题及其原因,可为控制策略及容量配置的优化规划提供决策依据。基于所建指标体系开发低压无功补偿装置的广域状态监测评估系统,实际运行表明所提系统可取得良好的效果。Due to the asymmetry and diversity of load at the low-voltage side of distribution transformer,the low-voltage reactive-power compensation device designed based on simple guidelines or engineering experiences can hardly meet the real-time reactive-power compensation demand,seriously influencing its voltage-regulation and loss-reduction effect. An index system of operational status evaluation for reactive-power compensation device at low-voltage side of distribution transformer is built according to the three-phase data measured every 5 min,by which,the voltage and reactive-power problems at the low-voltage side of distribution transformer and their causes can be identified,providing the references for the optimal planning of control strategy and capacity configuration. A wide-area status monitoring and evaluation system for low-voltage reactive-power compensation device is developed based on the proposed index system and its practical operation shows its perfect performance.

关 键 词：配电网 无功补偿 变压器 低压 状态评估 评估指标 监测 

分 类 号：TM406[电气工程—电器]