Source Current Harmonics and Motor Copper Loss Reduction Control of Electrolytic Capacitor-less Inverter for IPMSM Drive

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門（英文）

発行日: 2019/05/01

タイトル(英語): Source Current Harmonics and Motor Copper Loss Reduction Control of Electrolytic Capacitor-less Inverter for IPMSM Drive

著者名: Kodai Abe (Tokyo Metropolitan College of Industrial Technology), Hitoshi Haga (Nagaoka University of Technology), Kiyoshi Ohishi (Nagaoka University of Technology), Yuki Yokokura (Nagaoka University of Technology), Haruya Kada (Nagaoka University of Techn

著者名(英語): Kodai Abe (Tokyo Metropolitan College of Industrial Technology), Hitoshi Haga (Nagaoka University of Technology), Kiyoshi Ohishi (Nagaoka University of Technology), Yuki Yokokura (Nagaoka University of Technology), Haruya Kada (Nagaoka University of Technology)

キーワード: electrolytic capacitor-less inverter，IPMSM，copper loss，initial condition response

要約(英語): To reduce the cost of an AC-DC-AC system, a single-phase-to-three-phase electrolytic capacitor-less inverter has been proposed. In particular, to satisfy the requirements of a harmonic source current, it is necessary to control the source current under sinusoidal waveform conditions. However, the DC-link voltage becomes an absolute value of the source voltage, and the output voltage is almost zero near the zero-crossing region of the source voltage. In the zero-output-voltage region, the motor current response deteriorates while controlling the sinusoidal source current. When the motor speed is high, the copper loss is always large because the motor current in the zero-output-voltage region depends on the back-electromotive force of the motor. To suppress the copper loss in the zero-output-voltage region, this paper proposes a copper-loss reduction control method that utilizes the initial-condition response of the motor current.The proposed method reduces the motor copper loss while controlling the source current sinusoidally, and improves motor efficiency while satisfying the requirements of a harmonic source current. This paper analyzes the motor current in the zero-output-voltage region and focuses on the initial-condition response of the d-axis current. In addition, an optimal initial value that reduces the copper loss in the zero-output-voltage region is calculated.

本誌: IEEJ Journal of Industry Applications Vol.8 No.3 （2019） Special Issue on “IPEC-Niigata 2018”

本誌掲載ページ: 404-412 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejjia/8/3/8_404/_article/-char/ja/