组合式暂态试验电源关键技术及实现  

Critical Technology and Realization of Combined Transient Power Supply

作　　者：张杰[1,2] 刘翔[3] 胡媛媛[1,2] 叶国雄[3] 

机构地区：[1]南瑞集团公司(国网电力科学研究院),江苏南京211106 [2]国网电力科学研究院武汉南瑞有限责任公司,湖北武汉430074 [3]中国电力科学研究院,湖北武汉430074

出　　处：《电力电子技术》2017年第12期98-101,共4页Power Electronics

基　　金：国家电网公司科技项目(SGAHDK00JLJS/700063)~~

摘　　要：此处对现有试验技术存在的问题进行分析,提出基于不同时间尺度的模块化组合式试验技术,完成保护用电流互感器暂态试验电源的研制,并提供保护用电流互感器暂态特性试验的整体解决方案。试验结果表明,所提保护用电流互感器暂态特性试验方法及检测系统大幅度减小了试验电源容量,实现了全工况和宽范围初级时间常数的故障大电流模拟输出,其性能指标满足保护用电流互感器的暂态特性试验要求。Short-circuit primary current of power system is analyzed theoretically, the periodic component and the ape- riodic component are decomposed.The problems and deficiencies of the existing test technology are analyzed, the dif- ferent time scales of the modular combination test technique is put forward based on the development of current tran- sformer transient power protection test and the test power supply capacity, fault current to achieve full working condi- tion and wide range of a time constant of the analog output are greatly reduce which provides solutions with the over- all transient characteristic of current transformer test protection scheme.The test method of transient characteristic of current transformer and detection system for protection are put forward.The test results show that the technical perfor- mance indicators fully meet the testing requirements of electronic current transformer for protection.

关 键 词：电源 电流互感器 暂态 

分 类 号：TN86[电子电信—信息与通信工程]