数字化保护装置测试方法的研究  

Research of the test method for digital protection device

作　　者：李铁成[1] 郜向军 郝晓光[1] 张立[1] 何磊[1] 高志强[1] 

机构地区：[1]河北省电力研究院,河北石家庄050021 [2]石家庄供电公司,河北石家庄050051

出　　处：《电力系统保护与控制》2011年第3期119-121,共3页Power System Protection and Control

摘　　要：对数字化变电站保护装置的特点进行了分析,根据现场实际对数字式保护装置的测试方法进行了深入研究。提出了传统保护试验仪加合并单元与数字化保护试验仪两种测试方案,并对两种测试方案的优缺点进行分析。通过专业的网络流量模拟装置,模拟不同带宽下的网络背景流量,对数字化保护的动作时间进行测试。对两种方案的调试中的可行性与准确性进行分析。测试结果证明传统保护加合并单元的测试方案主要适用于出厂调试,采用数字式保护试验仪的测试方案,整组动作时间的误差体现在开关动作时间的不确定性上。This paper analyzes the characteristic of the protection device in digital substation and makes deep research on the test method for digital protection device based on status quo. It provides two testing methods,including the traditional protection tester plus merging unit and digital protection tester,and analyses the advantage and disadvantages. The action time of digitalprotection is tested based on the simulation of different net background traffic through the professional net analog device. At last,itanalyzes the feasibility and correctness of the two methods in the debugging. T he test results show that the test plan oftraditional protection with merging unit is suitable for manufacture test. The error of action time is affected by the uncertainty of switch action time by using the method of digital protection tester.

关 键 词：数字化变电站 数字式保护装置 整组动作时间 测试方法 

分 类 号：TM774[电气工程—电力系统及自动化]