摘要
当出现大范围的停电事故时,保护系统自身的故障往往是导致灾难发生的原因之一。为了解决这个问题,提出一种利用PMU数据和母线阻抗矩阵(Zbus)以替代保护系统功能的独立故障检测方法。首先,根据提出的方法确定故障区域,然后确定故障线路。通过广域测量,故障位置随着线路的确定也就被估算出来。IEEE-118节点测试系统验证结果表明。
The malfunction of the protection system itself is often among the suspects of the disaster when an outrage occurs in a large area. In order to solve the problem,the paper pro-poses an alternative fault diagnosis approach independent of the function of the protection system,which utilizes PMU data and bus impedance matrix(Zbus). First,the proposed method dia-gnoses the fault area,and then the fault line. The fault location along the diagnosed line is also estimated by wide-area measurements. The proposed method is applied to the IEEE118-bus test system where the results indicate successful diagnosis of the faulted lines throughout the grid as well as wide area fault location along the faulted line.
出处
《电网与清洁能源》
北大核心
2015年第4期1-7,共7页
Power System and Clean Energy
基金
甘肃省自然科学基金项目(1208RJZA151)
甘肃省教育厅硕导基金项目(1203ZTC025)~~
