牵引变流器中支撑电容器研究

Study of the Dc-Link Capacitor for Traction Converter

为牵引变流器中支撑电容器的参数选择提供了理论依据。首先以脉冲整流器为例对支撑电容器参数计算原理进行了详细推导,并采用仿真方法进行了验证,对5种常用支撑电容器选型方法进行了归纳,5种方法分别为电路分析计算法、仿真法、估算法、能量计算法、试验验证法。

This paper provides the sufficient principle and methods for the parameters choosing of the support capacitor in the traction converter.First,the parameters calculation principle of the support capacitor is introduced in detail with the example of pulse rectifier,and is conformed by the computer simulation;then five common choosing design methods for the support capacitor are introduced,which include circuit analysis method,simulation method,estimation method,energy calculation method as well as experimental method.