期刊
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
卷 57, 期 8, 页码 2730-2738出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2009.2036637
关键词
AC-AC power conversion; insulated-gate bipolar transistor; multicell single-phase topology; multilevel system; power electronics; variable-speed drives
资金
- Chilean Government [FONDECYT 108-0247]
This paper presents a multicell converter topology composed of N single-phase power cells per phase and a multi-pulse power transformer. The topology achieves high-power-quality waveforms in three-phase applications under the presence of severe unbalanced ac mains. Moreover, the power cells are properly arranged in order to achieve high-performance ac supply current waveforms under asymmetrical loads. The configuration is based on single-phase power cells that feature a pulsewidth-modulation rectifier in order to achieve an overall unitary displacement power factor and a controlled dc-link voltage at the power-cell level. The configuration is implemented, and different experimental tests are performed where unbalance and distortion indexes are computed.
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