Influence of DC-link fluctuations on three-phase induction motor drives

2009 IEEE Vehicle Power and Propulsion Conference Pub Date : 2009-10-20 DOI:10.1109/VPPC.2009.5289775

F. Fleming, O. Vodyakho, C. Edrington, M. Steurer, S. Azongha, M. Krishnamurthy

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引用次数: 4

Abstract

Modern induction machine (IM) drives are subject to a variety of system perturbations, possibly compromising machine performance characteristics such as speed, torque, and load current. This paper presents a three-phase induction motor drive system with an active IGBT rectifier, i.e. an Active Front End (AFE). The AFE converts the AC line input into a controlled DC-link voltage which is then used as input into a three-phase IM drive, based on an IGBT converter. A reconfigurable IM drive, i.e. the inverter, is controlled by the conventional PWM and space vector PWM based methods. This paper investigates the influences of the DC-link variations on the IM drive under each of these modulation strategies. A simulated drive is verified via an experimental test bed, and is then used to further study more extreme DC-Link fluctuations; specifically, variations 10 percent above and below the experimental value of 670 V. Phase current and voltage THD and spectra will be calculated to evaluate the fluctuations influence on performance characteristics. This system will be verified based on the control system rapid prototyping environment of dSPACE.

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直流链路波动对三相感应电动机驱动的影响

现代感应电机(IM)驱动器受到各种系统扰动的影响，可能会影响机器的性能特征，如速度，扭矩和负载电流。本文提出了一种具有有源IGBT整流器的三相感应电机驱动系统，即有源前端(AFE)。AFE将交流线路输入转换为受控的直流链路电压，然后用作基于IGBT转换器的三相IM驱动器的输入。一个可重构的IM驱动器，即逆变器，由传统的PWM和基于空间矢量PWM的方法控制。本文研究了在每种调制策略下，直流链路的变化对IM驱动的影响。仿真驱动器通过实验测试平台进行验证，然后用于进一步研究更极端的DC-Link波动;具体来说，在670 V的实验值上下变化10%。将计算相电流和电压THD和谱，以评估波动对性能特性的影响。该系统将在dSPACE的控制系统快速成型环境下进行验证。

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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2009 IEEE Vehicle Power and Propulsion Conference

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