串联谐振耐压试验仪的设计与仿真  

Design and Simulation of Series Resonant Withstand Voltage Tester

作　　者：盛瀚民[1] 肖建[1] 

机构地区：[1]西南交通大学电气工程学院,成都610031

出　　处：《自动化信息》2012年第11期25-27,共3页Automation Information

摘　　要：针对XLPE电力电缆耐压测试成本高、操作复杂等问题，本文中设计了一种变频串联谐振耐压试验装置。利用串联谐振电路的升压原理，构建了硬件电路，通过仿真对选择谐振点等问题进行了探讨。为了改进普通串联谐振耐压测试装置寻找谐振点慢、精度低的缺点，提出了一种解决方案。仿真结果表明，该方法能精确地确定谐振点。装置输出波形可靠性好，谐波分量少，具有良好的性能。In allusion to the problems of high cost and complex operation in XLPE power cable withstand voltage test, a kind of dielectric withstand voltage test device with frequency conversion series resonance is designed in this paper. The hardware circuit is built by using the voltage boosting principle of series resonant circuit; and the problem of selecting resonance point is discussed by means of the simulation. In order to improve the defects of seeking resonance point slowly and low precision of common withstand voltage testing device, a solution is proposed. The simulation results show that the method is able to determine the resonance point accurately; the output waveform has the good performances of high reliability and less harmonic component.

关 键 词：耐压测试 单相全桥 快速傅里叶变换 串联谐振 

分 类 号：TM83[电气工程—高电压与绝缘技术]