高圧電動機駆動用モジュラー・マルチレベルTSBCコンバータのコンデンサ電圧脈動抑制

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: 2016/12/01

タイトル(英語): Mitigation of Capacitor-Voltage Fluctuation in a Modular Multilevel Triple-Star Bridge-Cell (TSBC) Converter for Medium-Voltage Motor Drives

著者名: 川村　弥（東京工業大学 工学院 電気電子系），千葉　雄斗（（株）小松製作所 開発本部），赤木　泰文（東京工業大学 工学院 電気電子系）

著者名(英語): Wataru Kawamura (Department of Electrical and Electronic Engineering, Tokyo Institute of Technology), Yuto Chiba (Development Division, Komatsu Ltd.), Hirofumi Akagi (Department of Electrical and Electronic Engineering, Tokyo Institute of Technology)

キーワード: モジュラー・マルチレベル・カスケード変換器，高圧電動機駆動　　modular multilevel cascade converters，medium-voltage motor drives

要約(英語): This paper provides a theoretical and experimental discussion on a modular multilevel triple-star bridge-cell (TSBC) converter with focus on mitigating the capacitor-voltage fluctuation contained in each bridge cell. This paper assumes that the TSBC converter drives an interior permanent magnet synchronous motor rated at 75Hz loaded at the rated torque. A new control method proposed in this paper is characterized by properly superimposing both common-mode voltage and circulating currents in the whole speed range from 0 to 75Hz. Moreover, this paper optimizes the amplitude and frequency of the superimposed common-mode voltage with the help of theoretical analysis, thus resulting in minimizing the voltage fluctuation. This optimized control method can reduce both the voltage fluctuation and the cluster-current amplitude to values below those of existing methods. Experimental waveforms obtained from a three-phase downscaled model verify good start-up performance from a standstill to the rated speed.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.136 No.12 （2016）

本誌掲載ページ: 1015-1024 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/136/12/136_1015/_article/-char/ja/