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パワーエレクトロニクス学会誌
Vol. 42 (2016) p. 31-38

記事言語:

http://doi.org/10.5416/jipe.42.31

論文・研究報告・講演資料

– Three-phase multi-level voltage-fed converters operated by a two-phase PWM scheme offers relatively high ac voltage, low switching times, and low switching losses in comparison to that operated by a three-phase PWM scheme.However, the harmonics involved in the ac-side voltages and currents produced in the two-phase PWM scheme are distributed over a wide frequency range, which can be a significant drawback depending on its applications. To overcome this problem,the authors propose novel two-phase PWM scheme in which the harmonics appear in a frequency range as narrow as that in a the conventional three-phase PWM scheme. In this paper, the authors present the validity of the proposed PWM scheme from simulation and wavelet transform results.

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