A unified carrier-based modulation method for direct matrix converter

2015 IEEE International Conference on Electro/Information Technology (EIT) Pub Date : 2015-05-21 DOI:10.1109/EIT.2015.7293330

Chengzhu Piao, J. Hung

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引用次数: 3

Abstract

This paper presents a unified carrier-based modulation method for direct matrix converter. Various types of pulse width modulation (PWM) methods are generated by using the offset voltage, changing slope of carrier waveform, and adjusting the free parameters in the modulation algorithm. The proposed method is equivalent to the space vector pulse width modulation (SVPWM) for two-level and three-level voltage source inverter (VSI). This paper also presents a new viewpoint to understand the matrix converter modulation method such as single carrier based modulation technique for two-level VSI and double carrier based modulation technique for three-level VSI. Using the proposed method, this paper presents discontinuous pulse width modulation (DPWM) for the matrix converter. Therefore, a unified simple algorithm suitable for the digital implementation of all continuous and discontinuous PWM strategies is proposed. The feasibility of the proposed modulation method has been verified by a computer simulation results. These results show that the proposed carrier-based modulation method can be implemented easily without any tables.

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直接矩阵变换器基于载波的统一调制方法

提出了一种基于载波的直接矩阵变换器统一调制方法。利用偏置电压、改变载波波形的斜率以及调节调制算法中的自由参数，可以产生各种类型的脉宽调制(PWM)方法。该方法等效于二电平和三电平电压源逆变器的空间矢量脉宽调制(SVPWM)。本文还从新的角度来理解矩阵变换器调制方法，如基于单载波的二电平VSI调制技术和基于双载波的三电平VSI调制技术。利用该方法，本文提出了矩阵变换器的不连续脉宽调制(DPWM)。因此，提出了一种适用于所有连续和不连续PWM策略数字化实现的统一的简单算法。计算机仿真结果验证了所提调制方法的可行性。结果表明，所提出的基于载波的调制方法可以很容易地实现，不需要任何表。

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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2015 IEEE International Conference on Electro/Information Technology (EIT)

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