インダクタンス変化量を用いた永久磁石同期モータの極性判別法

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: 2021/07/01

タイトル(英語): Magnetic Polarity Detection Method for Permanent Magnet Synchronous Motor using Inductance Variation

著者名: 坂井　俊文（（株）日立製作所 研究開発グループ），國廣　直希（（株）日立製作所 鉄道ビジネスユニット），大塚　邦晃（（株）日立製作所 鉄道ビジネスユニット），篠宮　健志（（株）日立製作所 鉄道ビジネスユニット）

著者名(英語): Toshifumi Sakai (Research & Development Group, Hitachi, Ltd.), Naoki Kunihiro (Railway Systems Business Unit, Hitachi, Ltd.), Kuniaki Otsuka (Railway Systems Business Unit, Hitachi, Ltd.), Takeshi Shinomiya (Railway Systems Business Unit, Hitachi, Ltd.)

キーワード: 永久磁石同期モータ，初期磁極位置推定，磁気飽和，極性判別　　permanent magnet synchronous motor，initial rotor position estimation，magnetic saturation，magnetic polarity detection

要約(英語): This study presents a magnetic polarity detection method of an initial rotor position estimation for permanent magnet synchronous motor drives without a position sensor. The magnetic polarity detection method utilizes stator core magnetic saturation caused by the rotor magnet and uses current responses when a high frequency or impulse voltage is applied to the motor. Recently, capacity enlargement, miniaturization, and cost reduction of the motor have been steadily progressing and motors with complicated magnetic saturation characteristics are available. The authors have developed a new magnetic polarity detection method for initial rotor position estimation that is suitable for many motors having common or complicated magnetic saturation characteristics. In the proposed method, high-frequency voltage waves with different amplitudes are applied to the motor. The proposed method measures the motor current ripple components and can estimate the magnetic polarity by using the amount of d-axis inductance variation caused by magnetic saturation. 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.141 No.7 （2021）

本誌掲載ページ: 552-560 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/141/7/141_552/_article/-char/ja/