摘要
针对晶闸管浪涌电流试验采用半波10ms浪涌试验方式,提出连续多周波浪涌的试验方法,通过数学建模对试验方法进行仿真研究,同时与晶闸管样品浪涌试验结果进行分析对比,验证了通过晶闸管结温温升系列模型仿真计算来选择晶闸管阀的实际指导价值。从实际工程角度出发,给出晶闸管阀仿真和试验的方法,为晶闸管阀的选择和设计提供了试验结果支持。对华东500kV故障电流限制器示范工程用晶闸管阀进行结温温升仿真,及人工接地短路试验的结果分析,验证了6英寸晶闸管在故障电流限制器工程中应用的可靠性。
Instead of the conventional method of half fundamental frequency cycle surge current,a test method of continuous fundamental frequency cycles surge current for thyristors was presented.The method was validated by a circuit simulation with mathematics modeling;and the circuit simulation was compared with the result from surge tests on the sample thyristors.The practical value of the selected thyristor through the model of instantaneous junction temperature rise was validated.Based on an application project,the method for simulation and experiment of thyristor valves was presented,and the test results were provided to support the selection and design of thyristor valves.The thyristor valves used in the fault current limiter were simulated with the method of instantaneous junction temperature rise in the 500kV East China Power Grid.Combining the results of simulation,experiments and artificial ground short circuit test,the paper validates the reliability of 6-inch thyristor in the fault current limiter project.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2011年第12期15-21,共7页
Proceedings of the CSEE
关键词
晶闸管
结温仿真
浪涌电流试验
故障电流限制器
thyristor
junction temperature simulation
surge current test
fault current limiter
