| 引用本文: | 廖文彪,周泽昕,詹荣荣,等.多类型电流互感器混联运行动模测试平台建设及对差动保护的影响[J].电力系统保护与控制,2017,45(22):83-89. |
| LIAO Wenbiao,ZHOU Zexin,ZHAN Rongrong,et al.Construction of the dynamic model test platform for hybrid operation of multi type current transformer and its influence on differential protection[J].Power System Protection and Control,2017,45(22):83-89 |
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| 摘要: |
| 分析线路两侧的多类型电流互感器混联运行特性，理论推导混联运行的差流表达式，并分析其影响因素。在此基础上，研究多类型电流互感器混联运行动模测试方法，设计6种测试方案，制作与实际电流互感器等效的P级电流互感器、TPY级电流互感器及电子式电流互感器模型，并搭建混联运行动模测试平台。基于以上测试平台，对多类型电流互感器的传递性能差异对比测试，通过连续两次区外故障时混联运行的比率制动特性及动作轨迹，分析混联运行对差动保护的影响，提出相应的改进措施。 |
| 关键词: 多类型电流互感器混联运行 动模测试方法 测试方案 动模测试平台 |
| DOI：10.7667/PSPC161527 |
| 分类号: |
| 基金项目:国家电网公司科技项目(DW1600017) |
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| Construction of the dynamic model test platform for hybrid operation of multi type current transformer and its influence on differential protection |
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LIAO Wenbiao,ZHOU Zexin,ZHAN Rongrong,LI Yanjun,CHEN Zhengguang,DONG Minghui,ZHAN Zhihua
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(Relay Protection Research Department, China Electric Power Research Institute, Beijing 100192, China)
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| Abstract: |
| This paper analyzes hybrid operation characteristics of multi type current transformer for both sides of the line, deriving the differential current expression of hybrid operation by theory, and analyzing its influence factors. On this basis, it studies dynamic simulation testing method of hybrid operation of multi type current transformer, designs 6 kinds of testing schemes, makes the equivalent model based on the field of the P-level current transformer, the TPY-level current transformer and the electronic current transformer respectively, and builds the dynamic simulation testing platform of hybrid operation. Based on testing platform above, comparing the transmitting performance difference of multi type current transformer, through the action track and action state of hybrid operation in two successive out of the area fault, it analyzes the influence of hybrid operation on the differential protection and puts forward the corresponding improvement measures. This work is supported by Science and Technology Project of State Grid Corporation of China (No. DW1600017). |
| Key words: hybrid operation of multi type current transformer dynamic simulation testing method testing schemes dynamic simulation testing platform |
