三电平逆变器自平衡空间矢量开关调制器的实现

2008 IEEE Region 10 and the Third international Conference on Industrial and Information Systems Pub Date : 2008-12-01 DOI:10.1109/ICIINFS.2008.4798332

P. J. Patel, Rakeshkumar A. Patel, V. Patel, P. N. Tekwani

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引用次数: 3

摘要

本文介绍了如何制定一个自平衡空间矢量调制器的三电平中性点钳位拓扑通常用于高功率感应电机驱动。建立了三电平逆变器直流链路电容电压偏差与直流链路电流和逆变器开关状态的关系。脉冲模式重排的空间矢量PWM (SVPWM)使用的自由度可用的选择冗余空间矢量，矢量的排序和矢量的占空比的分裂是最好的利用。提出了一种基于前馈的自中性点电压偏差控制方法。实验结果验证了该方案的有效性。该调制器采用DSP-TMS320F2811和45 kw (60 HP)电机驱动成功实现。给出了调制器有效性的实验室测试结果。

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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Implementation of Self Balancing Space Vector Switching Modulator for Three-Level Inverter

This paper describes on how to formulate a self-balancing space vector modulator for the three-level neutral point clamp topology typically used for high power induction motor drives. Dependence of the DC link capacitor voltage deviation on DC-link current and inverter switching states is established for proposed three-level inverter. Pulse pattern rearrangements for space vector PWM (SVPWM) using degree of freedom available in choice of redundant space vectors, sequencing of vectors, and splitting of duty cycles of vector are best exploited. Self neutral-point voltage deviation control in feed forward is proposed in this paper. The effectiveness of proposed scheme is verified by experimental results. The modulator was successfully implemented using DSP-TMS320F2811 with a 45-kW (60 HP) motor drive. Lab test results are given for effectiveness of the modulator.

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2008 IEEE Region 10 and the Third international Conference on Industrial and Information Systems

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