Open AccessSpace vector modulation strategy for VIENNA rectifier and load unbalanced ability
Author(s) -
Hang Lijun,
Zhang Ming,
Li Bin,
Huang Long,
Liu Shirong
Publication year - 2013
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2012.0384
Subject(s) - rectifier (neural networks) , space vector modulation , modulation (music) , computer science , space (punctuation) , control theory (sociology) , topology (electrical circuits) , electrical engineering , physics , engineering , pulse width modulation , artificial intelligence , voltage , acoustics , control (management) , stochastic neural network , recurrent neural network , artificial neural network , operating system
The space vector modulation strategy for the three‐phase/wire/level VIENNA rectifier is analysed in this study. Furthermore, the voltage balancing ability of DC‐link neutral point is demonstrated as well. The maximum unbalanced rate between the loads for dual‐output under different modulation indices m is theoretically calculated when the converter works in unity power factor. A robust controller to balance the output voltage under the unbalanced load for different modulation indices is proposed. An experimental prototype was built to verify the theoretical analysis. The voltages for dual‐output are balanced when the converter works as a power factor corrector, and therefore the theoretical analysis is verified. Finally, the series of tested maximum unbalanced rate between the loads for dual‐output under different modulation indices m was given, which verifies the theoretical analysis.