基于相间变压器的长电缆过电压抑制技术研究  

Research on Over Voltage Suppression Technology of Long Cable Based on Interphase Transformer

作　　者：支永健 李康旭 朱柄全 闫光临 袁科亮 张晨 ZHI Yongjian;LI Kangxu;ZHU Bingquan;YAN Guanglin;YUAN Keliang;ZHANG Chen(CRRC Zhuzhou Institute Co.,Ltd.,Zhuzhou,Hunan 412001,China)

机构地区：[1]中车株洲电力机车研究所有限公司,湖南株洲412001

出　　处：《机车电传动》2021年第6期135-139,共5页Electric Drive for Locomotives

基　　金：湖南省科技创新团队项目(2020RC4054)。

摘　　要：针对碳化硅(SiC)等高速开关器件带来的长电缆过电压问题,分析了长电缆过电压产生原理及其影响因素,提出了一种基于相间变压器的抑制长电缆过电压的方法。通过建模仿真,结合双脉冲试验和BUCK电路试验进行了验证,结果表明该方法对抑制长电缆过电压效果显著。Aiming at the over voltage problem of long cable caused by high-speed switch devices such as silicon carbide,the mechanism of over voltage of long cable and its influencing factors were analyzed,and a method of suppressing over voltage of long cable based on interphase transformer was put forward,which was verified by modeling simulation,double pulse circuit and buck circuit test.The results showed that the method was effective in suppressing over voltage of long cable obviously.

关 键 词：PWM脉冲 传输线 特性阻抗 过电压 相间变压器 仿真 

分 类 号：U264.6[机械工程—车辆工程]