直流母線電流を用いた永久磁石同期モータの初期位置推定法

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: 2013/09/01

タイトル(英語): Initial Rotor Position Estimation Method for Permanent Magnet Synchronous Motors using DC Bus Current

著者名: 坂井　俊文（（株）日立製作所 日立研究所），坂本　潔（（株）日立製作所 日立研究所），金子　大吾（（株）日立製作所 日立研究所），中津川　潤之介（（株）日立製作所 日立研究所），岩路　善尚（（株）日立製作所 日立研究所）

著者名(英語): Toshifumi Sakai (Hitachi, Ltd., Hitachi Research Laboratory), Kiyoshi Sakamoto (Hitachi, Ltd., Hitachi Research Laboratory), Daigo Kaneko (Hitachi, Ltd., Hitachi Research Laboratory), Junnosuke Nakatsugawa (Hitachi, Ltd., Hitachi Research Laboratory), Yoshitaka Iwaji (Hitachi, Ltd., Hitachi Research Laboratory)

キーワード: 永久磁石同期モータ，磁気飽和，初期磁極位置推定，直流母線電流，非線形モデル　　permanent magnet synchronous motor，magnetic saturation，initial rotor position estimation，DC bus current，non-linear modeling

要約(英語): A method for initial rotor position estimation utilizes the dependence of inductance on the rotor position, which is caused by magnetic saturation of the iron core. The initial rotor position estimation is used to drive permanent magnet synchronous motors and generally requires information on three-phase currents. Recently, DC bus current detection has often been adopted as a low-cost method for reconstructing three-phase currents. However, the initial rotor position estimation method cannot be applied to DC bus current detection. The authors have developed a new method for initial rotor position estimation that is suitable for DC bus current detection. In the new method, high-frequency voltage waves are applied to the motor, and the initial rotor position is estimated by using the ripple components of the motor current. In this method, the applied voltage phase is changed over by 120 electrical degrees and applied to the three phases. A positive side current value and a negative side current value of a phase current produced by application of high-frequency voltage are detected from a DC bus current. The basic idea, computer simulation, and experimental results are discussed in this paper.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.133 No.9 （2013）

本誌掲載ページ: 902-908 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/133/9/133_902/_article/-char/ja/