牵引变流器直流输入线缆的高频建模研究

Research on High Frequency Modeling of Traction Converter DC Input Cable

将传输线模型作为线缆的基本电路拓扑结构,选用Q3D仿真软件提取线缆和箱体的寄生参数,提出了将线缆和箱体的3D模型分段来进行线缆分布参数提取的方法,仿真结果表明分布参数和与集总参数有较好一致性,提取的分布参数可以用于建立线缆的分布参数模型。建立线缆的分布参数模型能够更加准确的描述复杂箱体内弯曲线缆的寄生参数,对于牵引变流器的多种电磁兼容问题研究都具有重要的应用价值。

The transmission line model as the basic circuit topological structure of cable,choose Q3D parasitic parameters of the simulation software to extract the cable and box body,cable is put forward and the 3D model of box body is segmented to cable distribution parameter extraction method,the simulation results show that the distribution parameters and has better consistency with lumped parameter,extraction of distribution parameters can be used to build the cable distribution model.The establishment of the distribution parameter model of the cable can more accurately describe the parasitic parameters of the curved cable in the complex box,which has important application value for the research of various electromagnetic compatibility problems of the traction converter.