Influence of harmonic voltage distortion on asynchronous generators

8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives Pub Date : 2011-11-01 DOI:10.1109/DEMPED.2011.6063618

C. Debruyne, J. Desmet, B. Vervish, S. Derammelaere, L. Vandevelde

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引用次数: 7

Abstract

Renewable and dispersed electrical generators can be divided into systems directly coupled to the grid, or systems which use power electronic converters for grid connection. A lot of generation is still done by an induction machine directly coupled to the grid, for example in micro combined heat power or small wind turbines. For asynchronous generators directly coupled to the grid, the voltage distortion can have a significant influence on the efficiency of the machine. A lot of papers discuss the influence of voltage harmonics on Induction Machines. The influence of voltage harmonics on Induction Generators is less researched. Although some research has been performed through simulation, due to difficult laboratory setup not many practical efficiency measurements have been performed on Direct On Line Induction Generators for a medium power range. This paper discusses the practical test setup and measurement results for two different 55kW Induction Generators fed by a programmable power supply. Specifically the influence of the phase angle of the harmonic on the overall efficiency is tested.

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谐波电压畸变对异步发电机的影响

可再生和分散发电机可分为直接与电网耦合的系统，或使用电力电子变流器与电网连接的系统。许多发电仍然是由直接连接到电网的感应电机完成的，例如微型热电联产或小型风力涡轮机。对于直接与电网耦合的异步发电机，电压畸变会对发电机的效率产生重大影响。许多论文讨论了电压谐波对感应电机的影响。电压谐波对感应发电机的影响研究较少。虽然通过模拟进行了一些研究，但由于实验室设置困难，在中等功率范围内对直接在线感应发电机进行了许多实际的效率测量。本文讨论了用可编程电源供电的两台不同的55kW感应发电机的实际试验装置和测量结果。具体来说，测试了谐波相位角对总效率的影响。

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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8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives

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