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JPE, Vol. 19, No. 4, July 2019
SVPWM Strategies for Three-level T-type Neutral-point-clamped Indirect Matrix Converter
Nguyen Dinh Tuyen, Le Minh Phuong, and Hong-Hee Lee
Area High Power Converters
Abstract In this paper, the three-level T-type neutral-point-clamped indirect matrix converter topology and the relative space vector modulation methods are introduced to improve the voltage transfer ratio and output voltage performance. The presented converter topology is based on combinations of cascaded-rectifier and three-level T-type neutral-point-clamp inverter. It can overcome the limitation of voltage transfer ratio of the conventional matrix converter and the high voltage rating of power switches of conventional matrix converter. Two SVPWM strategies for proposed converter are described in this paper to achieve the advantages features such as: sinusoidal input/output currents and three-level output voltage waveforms. Results from Psim 9.0 software simulation are provided to confirm the theoretical analysis. Hence, a laboratory prototype was implemented, and the experimental results are shown to validate the simulation results and to verify the effectiveness of the proposed topology and modulation strategies.
Keyword Indirect matrix converter,Matrix converter,Multilevel inverter,Space vector modulation
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