Determination of Stray-Load Losses from Field Current Ripple of a Synchronous Machine by Field Simulation Methods

2020 IEEE Problems of Automated Electrodrive. Theory and Practice (PAEP) Pub Date : 2020-09-21 DOI:10.1109/PAEP49887.2020.9240812

M. Kotsur, D. Yarymbash, I. Kotsur, S. Yarymbash

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引用次数: 6

Abstract

An improved three-dimensional circuit-field model of the armature of a synchronous machine with combined windings for dynamic modes of short-circuit, at supplying from a rectifier of different design is proposed. The combination of the electrical circuit, field system and spatial modeling of electromagnetic fields makes it possible allows taking into account of the effect of the design features of synchronous machines, the parameters of their windings, the nonlinearity of the electro-physical properties of materials, the effects of self-induction and mutual induction in dynamic short circuit modes. A research of the influence of the fields current ripple on the electromagnetic parameters and stray-load losses in the combined windings of the armature of a synchronous machine by field simulation method was executed for the most common rectification circuits. It is proved, that the use of single-phase bridge rectifiers violates the symmetry of the resulting voltages in the parallel phases of the armature winding of synchronous machine. For this class of synchronous machine, it is advisable to use a three-phase bridge rectifier as a field system.

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用场仿真方法确定同步电机场电流纹波的杂散负载损耗

针对不同设计的整流器供电时的短路动态模式，提出了一种改进的组合绕组同步电机电枢三维电路场模型。电路、场系统和电磁场的空间建模相结合，可以考虑同步电机的设计特性、绕组参数、材料电物理特性的非线性、动态短路模式下的自感和互感效应的影响。采用磁场仿真的方法，对同步电机电枢组合绕组中最常见的整流电路进行了磁场纹波对其电磁参数和杂散负载损耗的影响研究。结果表明，单相桥式整流器的使用破坏了同步电机电枢绕组并联电压的对称性。对于这类同步电机，建议采用三相桥式整流器作为现场系统。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2020 IEEE Problems of Automated Electrodrive. Theory and Practice (PAEP)

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