随着交通网络对电气化系统兼容性的要求增加,更好地去理解整个电气化网络是绝对有必要的。这些要求包括干扰电流的限制、整个系统的稳定性等。为了很好地去实现这些要求,在运行交通提出和设计的阶段,需要对系统模型做很多的研究。在大型铁道网络中,大量独立的变量迫使工程师在一定程度上去简化问题。文章描述了包括有在可以接受的模型错误的情况下,怎样用一种简单方式去处理某些问题,展现实际系统。 As traffic networks have increased requirements for the compatibility of electrification systems, it is absolutely necessary to better understand the entire electrified network. These requirements include the interference current limit, the stability of the entire system and so on. In order to meet these requirements well, much research on the system model is needed in the period of transportation planning and operation. In large railway networks, a large number of independent variables force engineers to some extent to simplify the problem. The article describes how to deal with certain problems in a simple way to show the actual system, including the acceptable model errors.