速度オブザーバを用いた速度センサレスベクトル制御系の安定性解析

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: 2020/05/01

タイトル(英語): Stability Analysis of Speed Observer-Based Speed Sensorless Vector Control System of Induction Motor

著者名: 永野　孝（都城工業高等専門学校 電気情報工学科）

著者名(英語): Takashi Nagano (Department of Electrical and Computer Engineering, National Institute of Technology, Miyakonojo College)

キーワード: センサレス，ベクトル制御，速度オブザーバ，安定性解析，誘導電動機　　sensorless，vector control，speed observer，stability analysis，induction motor

要約(英語): Speed sensorless vector control requires accurate motor parameters, but the stator and rotor resistances vary due to the variations in motor temperature. This method requires estimations of the rotor flux and rotor speed. Since the estimations use the machine parameters, the stability of the system is sensitive to the variations of the machine parameters.In this study, the stability analysis of a speed sensorless vector control system based on speed observer is carried out. The stability of the speed sensorless vector control system of a three-phase squirrel cage induction motor is analyzed. First, a novel differential equation for speed observer is introduced, and the stability analysis method is proposed. Then, the stability effects of the stator resistance, rotor resistance, rotor speed command, load torque, and observer gain are considered.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.140 No.5 （2020） 特集：2019年産業応用部門大会

本誌掲載ページ: 396-401 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/140/5/140_396/_article/-char/ja/