Paper Info
Title
An Enhanced Control Strategy for AC–DC Matrix Converters Under Unbalanced Grid Voltage
Abstract
Under unbalanced grid voltage conditions, an ac–dc matrix converter (MC) induces ripple on the dc side, as well as severe grid current harmonics. To overcome these problems, an enhanced control strategy for an ac–dc MC based on an independent control scheme for the active and reactive powers is proposed in this paper. The generated current reference is directly synthesized from instantaneous power analysis in a stationary frame, and a constant dc voltage and current and sinusoidal grid current are obtained. Moreover, the input power factor (IPF) becomes almost unity due to the reactive power control, in spite of unbalanced grid voltage conditions. There is no need to extract grid voltage components such as the positive and negative sequences, and a controller for the grid current is not required, in contrast to previous methods. Thus, the proposed control method can be implemented easily without a large storage requirement. Simulation and experimental results are presented to verify the effectiveness of the proposed control strategy.
Year
DOI
Venue
2020
10.1109/TIE.2019.2907452
IEEE Transactions on Industrial Electronics
Keywords
DocType
Volume
Reactive power,Voltage control,Modulation,Support vector machines,Harmonic analysis,Matrix converters
Journal
67
Issue
ISSN
Citations 
3
0278-0046
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Thanh-Luan Nguyen100.34
Hong-Hee Lee236342.82