126 kV/50 kA合成试验回路参数设计及仿真  

Parameter Design and Simulation of 126 kV/50 kA Synthetic Test Circuit

作　　者：万德春 陈辉 葛国伟[2] 程显[2] 陈里昂 白青林 WAN Dechun;CHEN Hui;GE Guowei;CHENG Xian;CHEN Li'ang;BAI Qinglin(State Grid Electric Power Research Institute Co.,Ltd.,Nanjing,Jiangsu 211000,China;College of Electrical Engineering,Zhengzhou University,Zhengzhou,Henan 450001,China)

机构地区：[1]国网电力科学研究院有限公司,江苏南京211000 [2]郑州大学电气工程学院,河南郑州450001

出　　处：《广东电力》2022年第6期126-134,共9页Guangdong Electric Power

基　　金：国家自然科学基金项目(51977195,52107170);河南省优秀青年科学基金项目(202300410370);河南省科技创新人才(21HASTIT022)。

摘　　要：合成试验回路是一种经济、有效的断路器开断性能测试平台,在很好地评估断路器性能的同时,能兼顾经济性和等价性。为了更精确地模拟电力系统发生短路故障时断路器所处的环境,进行不同电压电流等级和不同试验方式下合成试验回路的参数设计。利用MATLAB/Simulink软件搭建合成试验回路的仿真模型,验证参数的准确性,对不同情况下的仿真波形进行分析,结果符合预期。所设计的合成试验回路的投切参数满足GB 1984—2003《高压交流断路器》和GB/T 4473—2008《高压交流断路器的合成试验》的要求,可以进行单相试验容量为126 kV/50 kA、试验方式T100/T60的断路器开断试验。最后在MATLAB/GUI模块上设计了参数自动计算模块以供实验室使用。The synthetic test circuit is a kind of economic and effective test platform for interruption performance of the breaker,which can well evaluate the performance of breaker and balance the economy and equivalence at the same time.In order to accurately simulate the environment of the breaker as the short circuit fault occurs in the power system,this paper designs the parameters of the synthetic test circuit with different voltage and current levels and in different test ways.By using MATLAB/Simulink softwares,it builds the simulation model of the test circuit to verify the accuracy of the parameters and analyze the simulation waveforms in different cases.The results meet the expectation.The switching parameters of the synthetic test circuit designed in this paper meet the requirements of GB 1984—2003 High-voltage AC Breaker and GB/T 4473—2008 High-voltage AC Breaker Synthesis Test.The interruption test of the breaker with single-phase test capacity of 126 kV/50 kA,test mode T100/T60 is allowed to be carried out.Finally,the automatic parameter calculation module of the circuit is designed on MATLAB/GUI module for laboratory use.

关 键 词：合成试验回路 参数设计 瞬态恢复电压 MATLAB仿真 参数计算界面 

分 类 号：TM561[电气工程—电器]