基于PMU的量测系统配置及其对状态估计精度的影响  

Studies on placement of PMUs and its effect on state estimation's precision

作　　者：张嘉伟[1] 谢英男[2] 杨晓丰[3] 许家玉 张振龙 

机构地区：[1]东北电力大学建筑工程学院,吉林132012 [2]浙江省湖州电力局,浙江湖州313000 [3]浙江省绍兴电力局,浙江绍兴312000 [4]浙江省宁波电力局,浙江宁波315010

出　　处：《中国电力》2008年第6期23-27,共5页Electric Power

摘　　要：提出一种新的相量测量单元(PMU)配置策略,同时搭建了由数据采集与监控系统(SCADA)和广域测量系统(WAMS)组成的混合量测平台。定量比较PMU阶段性配置过程中状态估计数值稳定性变化、PMU配置前后的估计误差及不同PMU配置方案下的各个母线估计误差,对所提出的经济且实用的PMU子站建设新方案进行了多角度验证。A novel placement strategy of PMUs （Phasor Measurement Unit ） was proposed. Moreover, a hybrid measuring platform, which is consisted of SCADA （Supervisory Control and Data Acquisition ） and WAMS （Wide-area Measurement System ）, was established. Based on this platform, the comparative study on numerical stability during placing procedure of PMUs, the analysis of error covariance matrix of state estimation before and after the placement of PMUs and precision improvement of different placement strategies were given. This novel and economic placement scheme of PMUs was studied from multi-aspects.

关 键 词：相量量测单元(PMU) 广域测量系统(WAMS) 状态估计 

分 类 号：TM764[电气工程—电力系统及自动化]