Evaluation of the additional loss due to supply voltage distortion in relation to induction motor efficiency rating

2015 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2015-05-10 DOI:10.1109/IEMDC.2015.7409321

C. Debruyne, Bram Corne, P. Sergeant, J. Desmet, L. Vandevelde

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引用次数: 5

Abstract

Distortion of the supply voltage undoubtedly reduces the overall energy efficiency of induction motors. The goal of this paper is to evaluate additional harmonic losses in relation to the machine's initial efficiency rating. However, due to the relatively small amount of additional loss, the main drawback when evaluating the effect of supply voltage distortion on the machines' overall efficiency is the measurement accuracy of the current methods. In order to validate the effect of motor efficiency rating in relation to supply voltage distortion, the use of the parameter "harmonic active power" is suggested. This new strategy is subsequently validated by measurements and compared to current methods such as the NEMA MG1, or the procedure according to the IEC60034-2-3. Although this strategy is only valid under certain constraints, this new method enables a fast and highly accurate measurement of the additional loss. Consequently, this parameter is used to validate the effect of efficiency rating of induction motors in relation to the additional loss related supply voltage distortion.

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评估电源电压畸变与感应电机额定效率之间的额外损耗

电源电压的畸变无疑会降低感应电动机的整体能源效率。本文的目的是评估与机器的初始效率额定值有关的额外谐波损耗。然而，由于附加损耗相对较小，在评估电源电压畸变对机器整体效率的影响时，主要缺点是当前方法的测量精度。为了验证电机效率额定值与电源电压畸变的关系，建议使用“谐波有功功率”参数。该新策略随后通过测量验证，并与当前方法(如NEMA MG1)或IEC60034-2-3中的程序进行比较。虽然该策略仅在某些约束条件下有效，但这种新方法可以快速、高度准确地测量额外损耗。因此，该参数用于验证感应电动机的效率额定值对与电源电压畸变相关的附加损耗的影响。

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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2015 IEEE International Electric Machines & Drives Conference (IEMDC)

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