モジュラー・マルチレベル・カスケード・インバータ（MMCI-DSCC）を用いた誘導電動機の速度センサレス始動法

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: 2013/12/02

タイトル(英語): A Speed-Sensorless Start-Up Method for an Induction Motor Driven by a Modular Multilevel Cascade Inverter Based on Double-Star Chopper Cells (MMCI-DSCC)

著者名: 岡崎　佑平（東京工業大学 大学院理工学研究科 電気電子工学専攻），萩原　誠（東京工業大学 大学院理工学研究科 電気電子工学専攻），赤木　泰文（東京工業大学 大学院理工学研究科 電気電子工学専攻）

著者名(英語): Yuhei Okazaki (Department of Electrical and Electronic Engineering, Tokyo Institute of Technology), Makoto Hagiwara (Department of Electrical and Electronic Engineering, Tokyo Institute of Technology), Hirofumi Akagi (Department of Electrical and Electronic Engineering, Tokyo Institute of Technology)

キーワード: 高圧モータドライブ，モジュラー・マルチレベル・カスケード・インバータ，速度センサレス始動法　　medium-voltage induction motor drives，modular multilevel cascade inverters，speed-sensorless start-up

要約(英語): A modular multilevel cascade inverter based on double-star chopper cells (MMCI-DSCC) is expected as one of the next-generation multilevel PWM inverters for medium-voltage motor drives. This paper presents theoretical and experimental discussions on a practical speed-sensorless start-up method for an induction motor driven by the MMCI-DSCC from a standstill to a middle speed. This motor drive is suitable, especially for a large-capacity fan- or blower-like load, the torque of which is proportional to a square of the motor mechanical speed. Unlike the so-called “volts-per-hertz” control, three-phase stator currents are based on “feedback” control, whereas their amplitude and frequency are based on “feedforward” control. Although the motor drive has no speed sensor attached to the motor shaft, this method makes a slow start-up stable with the help of a stator current-feedback loop. Experimental results obtained from a 400-V, 15-kW downscaled system verify the stable operating performance from a standstill to a middle speed of 590min-1 with a 40% load torque.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.133 No.12 （2013）

本誌掲載ページ: 1157-1164 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/133/12/133_1157/_article/-char/ja/