Realization of SVM Methods With Carrier-Based Dipolar PWM for Matrix Converters

Abstract

Considering several space-vector modulation (SVM) methods, this study proposes SVM methods with carrier-based dipolar pulse width modulation (CBDPWM) for matrix converters. The switching patterns of well-known SVM methods are analyzed, and carrier-based modulation (CBM), which uses reference voltages selected from desired output voltages to generalize the PWM theory of two-level inverters, is developed for matrix converters. Moreover, the relationship between SVM and carrier-based dipolar modulation (CBDM) is revealed to generate the switching pattern of SVM methods. The experimental results confirm that arbitrary SVM methods, which require intensive calculations, can be easily realized by the CBDM by adding specified zero voltages and appropriately choosing a particular input phase as a reference.

Keywords

• Matrix converters
• carrier-based modulation
• space-vector modulation