Improved double line voltage synthesis of matrix converter for input current enhancement under unbalanced power supply. Issue 4 (1st April 2013)

• Record Type: Journal Article
• Authors: Yan, Yan; An, Haijiao; Shi, Tingna; Xia, Changliang
• Is Part Of: IET power electronics. Volume 6:Issue 4(2013)
• Page Start: 798
• Page End: 808
• Publication Date: 2013-04-01
• Subjects: matrix convertors -- power system harmonics; double line voltage synthesis -- matrix converter -- input current enhancement -- unbalanced power supply -- reactive component -- harmonic content; matrix convertors -- power system harmonics; double line voltage synthesis -- matrix converter -- input current enhancement -- unbalanced power supply -- reactive component -- harmonic content; Power electronics -- Periodicals; 621.31705
• DOI: 10.1049/iet-pel.2012.0588
• Languages: English
• ISSNs: 1755-4535

Abstract

Abstract : Input voltage unbalance causes input current waveform degradation of matrix converter because of the lack of reactive component in dc link. To reduce the harmonic content of input current, dynamic input current modulation methods based on space vector modulation strategy have been presented in some works. This study proposes two improved double line voltage synthesis (DLVS) strategies for matrix converters. Both strategies apply the dynamic input current modulation methods to DLVS aiming at improving input and output waveforms at the same time. Besides, simplicity is another advantage of the methods proposed in this study. Phase detection of input current modulation vector is eliminated, which reduces the calculation time of control algorithm. Numerical simulations and experiments with a 10 kW prototype are carried out. The results are given to verify the feasibility and effectiveness of the proposed strategies.