表面磁石型永久磁石同期モータの電流検出誤差とモータパラメータ変動のオンライン同定法

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: 2011/10/01

タイトル(英語): Method for On-line Estimation of Electrical Motor Parameter Variation and Current Sensor Offset for SPM Motor

著者名: 植中佑太郎（長岡技術科学大学），佐沢　政樹（長岡技術科学大学），大石　潔（長岡技術科学大学），高橋　健治（長岡技術科学大学）

著者名(英語): Yutaro Uenaka (Nagaoka University of Technology), Masaki Sazawa (Nagaoka University of Technology), Kiyoshi Ohishi (Nagaoka University of Technology), Takahashi Kenji (Nagaoka University of Technology)

キーワード: 電流シミュレータ，パラメータ同定，電流センサオフセット，表面磁石型永久磁石同期モータ　　current simulator，parameter identification，current sensor offset，surface permanent magnet synchronous motor

要約(英語): The servo system of a permanent magnet (PM) motor should always maintain fine torque and fine speed responses. Accurate motor parameter identification is necessary for the PM motor servo system because the current control system is designed by considering the electric parameters of the PM motor. However, the motor parameters vary with the age of the motor and temperature. Moreover, current sensors have offset values. When the current sensor has offset values, the PM motor servo system produces torque ripple. In order to overcome these problems, this paper proposes a new real-time estimation method for both current sensor offsets and electrical parameters (resistance Ra, inductance La, and magnetic flux φfa) of the surface permanent magnet (SPM) motor. The proposed method involves the use of a real-time algorithm and a current simulator, which is operated using a DSP software system. In order to accurately estimate the motor parametera, the proposed method is using estimate currents, DC terms of sensor currents, and nominal motor parameter value. The experimental results of this study confirm that the proposed method satisfactorily estimates the current sensor offset of the U phase and V phase, as well as the electrical motor parametersRa, La, and φfa accurately.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.131 No.10 （2011）

本誌掲載ページ: 1193-1202 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/131/10/131_10_1193/_article/-char/ja/