An Effective SVM Method for Matrix Converters With a Superior Output Performance

Abstract

This paper presents the development of an effective space vector modulation (SVM) regarding matrix converters (MCs) for the full range of the voltage transfer ratio (VTR), whereby a superior output performance was achieved. The proposed method uses all of the vectors adjacent to the reference output-voltage vector in one sector to build a unique general switching pattern to drive the MC. For the purpose of pursuing the high output performance of MCs, the proposed switching pattern can be applied to low and high VTRs with a unique modulation strategy owing to generalized equations. In addition, an output current-ripple-minimization technique is also accomplished through a design of the duty cycles of zero vectors that enhances the output performance for the MC. With the unique switching pattern, the proposed SVM method can be easily implemented. The experiment results are given to confirm the effectiveness of the proposed method.