Real-time power measuring and monitoring for an efficient vector-controlled induction motor drive

IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200) Pub Date : 1998-08-31 DOI:10.1109/IECON.1998.724208

J. M. Moreno-Eguilaz, J. Peracaula

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引用次数: 4

Abstract

Efficient variable-speed drives are becoming more and more common in today's industry. With increasing harmonic pollution in the power system, real-time monitoring and analysis of harmonic variation have become important. To evaluate power quantities, it is necessary to consider the presence of harmonics because the drive is fed by a power electronics converter. In this paper, a fully digital algorithm to measure and evaluate main power definitions (active power, fundamental reactive power, fundamental apparent power, apparent power, nonfundamental apparent power, total power factor, displacement power factor, intensity total harmonic distortion, etc.) is presented and applied to an efficient variable-speed vector-controlled 1.5 kW induction motor drive. The system is useful to evaluate efficiency and harmonic pollution at different speed and load conditions. Besides, it allows other power quantities to be used as control variables in the efficiency controller.

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一个有效的矢量控制感应电机驱动的实时功率测量和监测

高效的变速驱动器在当今工业中变得越来越普遍。随着电力系统中谐波污染的日益严重，谐波变化的实时监测和分析变得越来越重要。为了评估功率量，有必要考虑谐波的存在，因为驱动器是由电力电子转换器供电的。本文提出了一种测量和评估主要功率定义(有功功率、基频无功功率、基频视在功率、视在功率、非基频视在功率、总功率因数、位移功率因数、强度总谐波畸变等)的全数字算法，并将其应用于高效变频矢量控制的1.5 kW异步电动机驱动器。该系统可用于评估不同转速和负载条件下的效率和谐波污染。此外，它还允许使用其他功率量作为效率控制器的控制变量。

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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IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200)

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