Abstract

In Russia, more than 24 thousand km of railways are electrified with alternating current. To carry out transportation in freight and passenger traffic, electric locomotives and electric trains equipped with rectifier–inverter converters are used. Technically speaking, the set of electrical equipment is a multizone bridge rectifier operating with an active–inductive load. One of the main disadvantages of such a scheme is low power factor. When determining the final value of the power factor, three factors must be taken into account: the magnitude of the rectified current ripples, nonsinusoidality, and the duration of switching. In this paper, the main expressions for determining the duration of switching during the operation of a rectifier–inverter converter for an ac traction rolling stock are obtained and the electrical parameters of the traction transformer windings are calculated.

中文翻译：

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整流-逆变转换器开关角的计算

摘要

在俄罗斯，超过 24,000 公里的铁路通过交流电实现电气化。在货运和客运中进行运输，使用装有整流-逆变器的电力机车和电动列车。从技术上讲，这组电气设备是一个多区域桥式整流器，使用有源电感负载运行。这种方案的主要缺点之一是功率因数低。在确定功率因数的最终值时，必须考虑三个因素：整流电流纹波的幅度、非正弦性和开关持续时间。在本文中，