Examination to Single-phase to Three-phase Power Converter For LC-less and Matrix Converter Topology

概要

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This paper proposes a novel single-phase to three-phase converter topology, which aims at the source side power ripple. Source side energy provides directly to the motor without smoothing at the power converter. The proposed system obtains unity power factor of the converter without a reactor and a bulky electrolytic capacitor. The proposed power flow method applies to two power converters. One is an ac-dc-ac circuit topology, which has a diode rectifier and a three-phase inverter. The other is a single-phase to three-phase matrix converter. This paper proposes an inverter control method to obtain both the unity power factor operation and variable speed motor drive. Furthermore, the proposed control method applies to the matrix converter using an algebraic transfer matrix. This paper describes that the proposed method achieves the unity power factor operation by experimental tests. The experimental results confirm the feasibility of the proposed method.
パワーエレクトロニクス学会の論文