Paper Info
Title
Hybrid Control Scheme for Three-Phase Multilevel Unidirectional Rectifier Under Unbalanced Input Voltages.
Abstract
In this paper, a hybrid control scheme for three-phase Y-connected multilevel bridgeless rectifier (TMBR) under unbalanced input voltages is presented, based on the mathematical model of the TMBR topology, with the emphasis on the discussion for power fluctuation suppression, dc-link capacitor voltages balancing and input current zero-crossing distortion elimination. With the hybrid control scheme, the power fluctuation can be suppressed and three-phase input currents can flow with a purely sinusoidal waveform, besides, three-phase dc-link capacitor voltages can be controlled to be equal to each other under unbalanced input voltages. Moreover, the proposed hybrid control scheme is applicable to all other three-phase three wire multilevel unidirectional rectifiers under unbalanced input voltages. The validity of the proposed control scheme is demonstrated by the mathematical deduction. The simulations and experimental results verify that, with the proposed control scheme, TMBR can stably operate not only under balanced input voltages but also under unbalanced input voltages.
Year
DOI
Venue
2019
10.1109/ACCESS.2019.2897799
IEEE ACCESS
Keywords
Field
DocType
Three-phase multilevel bridgeless rectifier,hybrid control scheme,unbalanced input voltages
Rectifier,Balanced audio,Power Fluctuation,Computer science,Control theory,Voltage,Flow (psychology),AC power,Three-phase,Distortion,Distributed computing
Journal
Volume
ISSN
Citations 
7
2169-3536
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Hong Cheng170365.27
Jiayi Kong200.34
Penghui Wang311012.23
Cong Wang401.35