簡易電流検出を用いたセンサレスベクトル制御

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門

発行日: 2013/07/01

タイトル(英語): Sensorless Vector Control Using Simplified DC-Link Current Sampling

著者名: 隅田　悟士（（株）日立製作所 日立研究所），能登原　保夫（（株）日立製作所 日立研究所），前田　大輔（（株）日立製作所 電力グループ 電機システム事業部），伊藤　佳樹（（株）日立製作所 電力グループ 電機システム事業部）

著者名(英語): Satoshi Sumita (Hitachi Research Laboratory, Hitachi, Ltd.), Yasuo Notohara (Hitachi Research Laboratory, Hitachi, Ltd.), Daisuke Maeda (Power & Industrial Systems Division, Hitachi, Ltd.), Yoshiki Ito (Power & Industrial Systems Division, Hitachi, Ltd.)

キーワード: 直流母線電流，永久磁石同期モータ，パルス幅変調，センサレスベクトル制御　　DC-link current，permanent magnet synchronous motor，pulse width modulation，sensorless vector control

要約(英語): This paper proposes a sensorless vector control using a simplified the DC-link current sampling. The motor current phase and amplitude are estimated from two different phases of the three-phase AC current in the conventional method. The timer function of a microcomputer for A/D conversion is necessary to sample two different phases current from the DC-link. The range of available microcomputers is restricted, which increases the cost of the motor drive system. The current estimation method without the timer function is proposed for a low-cost microcomputer in this paper. One phase of the three phase AC current is repeatedly sampled at regular intervals. The motor current phase and amplitude are estimated from two same phase current sampled at different timing. Because the accuracy of the proposed current estimation method depends on the sampling timing, a fluctuating error occurs in the case of a low sampling rate and a low carrier frequency. The fluctuating error is removed by using the compensation coefficient that is calculated online based on the sampling timing. The obtained simulation and experimental results confirm the effectiveness of the proposed method.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.133 No.7 （2013）

本誌掲載ページ: 668-675 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejias/133/7/133_668/_article/-char/ja/