直列共振形高周波リンクDC-ACコンバ-タ出力電圧リアルタイムフィ-ドバック制御

概要

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This paper proposes a real-time control method of a series-resonant high-frequency linked DC-AC converter and a feedback control method of its output voltage waveform for applications to UPS, AC motor controller, reactive power compensator, and so on.An approximate analysis of the basic series-resonant converter is performed, and then practical equations and an equivalent circuit of the converter are obtained by averaging the modified oscillating current of the resonant circuit, from which a real-time control algorithm of the series-resonant converter as well as the conventional PWM inverters is derived. A feedback control is applied using proposed control algorithm to obtain asingle-phase sinusoidal voltage waveform.Experimental results are presented in the case of linear and nonlinear load to confirm the usefulness of the proposed control algorithm.
社団法人電気学会の論文