期刊
IEEE TRANSACTIONS ON POWER ELECTRONICS
卷 15, 期 2, 页码 242-249出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/63.838096
关键词
neutral-point voltage balancing; space vector modulation; three-level converter
This paper explores the, fundamental limitations of neutral-point voltage balancing problem for different loading conditions of three-level voltage source inverters. A new model in DQ coordinate frame utilizing current switching functions is developed as a means to investigate theoretical limitations and to offer a more intuitive insight into the problem. The low-frequency ripple of the neutral point caused by certain loading conditions is reported and quantified.
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