带交流线路阻抗的三相PWM驱动器的交流线路电流变化

Conference Record of the 1990 IEEE Industry Applications Society Annual Meeting Pub Date : 1990-10-07 DOI:10.1109/IAS.1990.152316

R. Schieman, T. Khuwatsamrit

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引用次数: 4

摘要

满载三相脉宽调制(PWM)驱动器的交流线路电流随交流线路阻抗的变化而变化。PWM驱动器由一个向母线电容和逆变器提供直流电源的三相二极管桥组成。每相线电感越低，交流线输入电流的有效值越大。交流线路电流峰值，谐波电流。本文给出了用计算机计算得出的有效值电流和谐波表。该研究考虑了二极管电流以较高的线电感换流而减小线电流的影响。将实验室测试装置的数据制成表格并确认结果。

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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AC line current variation on a three-phase PWM drive with AC line impedance

The AC line current to a fully loaded, three-phase pulse-width modulation (PWM) drive varies with the AC line impedance. The PWM drive consists of a three-phase diode bridge supplying DC power to a bus capacitor and an inverter. The lower the per-phase line inductance, the greater the RMS AC line input current. AC line current peak, and harmonic currents. Results from a computer study that tabulated the RMS current and harmonics are presented. The study considers the effect of reduced line current due to diode current commutation with higher line inductance. Data from a laboratory test set-up are tabulated and confirm the results.<>

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Conference Record of the 1990 IEEE Industry Applications Society Annual Meeting

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