一种基于低共模电压三电平逆变器的异步电机直接转矩控制方案

2017 IEEE International WIE Conference on Electrical and Computer Engineering (WIECON-ECE) Pub Date : 2017-12-01 DOI:10.1109/WIECON-ECE.2017.8468877

Aathira Hegde, K. I. Nirsha, P. Rajeevan

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引用次数: 1

摘要

针对三电平逆变器驱动的异步电动机，提出了一种降低共模电压的直接转矩控制方案。该方案通过优化选择电压空间矢量，使共模电压幅值为$\displaystyle \frac {V_{DC}}{6}$或0，其中VDC为可实现电压空间矢量的最大幅值，从而降低共模电压。为了验证所提出的方案，在MATLAB-Simulink平台上进行了大量的仿真。利用TMS320F28335数字信号处理器实现控制算法，在三电平逆变器驱动的感应电机上进行了实验验证。

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A Three-Level Inverter Based Direct Torque Control Scheme With Reduced Common-Mode Voltage For Induction Motor Drive

A Direct Torque Control Scheme with reduced common mode voltage for an Induction Motor drive fed by a three-level inverter is proposed in this paper. This scheme serves to reduce the common-mode voltage, by optimally selecting voltage space vectors in such a way that the common-mode voltage magnitude is either $\displaystyle \frac {V_{DC}}{6}$ or 0 where VDC is the maximum magnitude of the realizable voltage space vector. To validate the proposed scheme extensive simulations are carried out on MATLAB-Simulink platform. The proposed DTC scheme is experimentally verified on an induction motor fed by a three-Ievel inverter using TMS320F28335 digital signal processor for control algorithm implementation.

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来源期刊

2017 IEEE International WIE Conference on Electrical and Computer Engineering (WIECON-ECE)

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