Stabilization Method for IPMSM with Long Electrical Time Constant Using Equivalent Resistance Gain Based on V/f Control

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門（英文）

発行日: 2019/07/01

タイトル(英語): Stabilization Method for IPMSM with Long Electrical Time Constant Using Equivalent Resistance Gain Based on V/f Control

著者名: Jun-ichi Itoh (Nagaoka University of Technology), Takato Toi (Nagaoka University of Technology), Koroku Nishizawa (Nagaoka University of Technology)

著者名(英語): Jun-ichi Itoh (Nagaoka University of Technology), Takato Toi (Nagaoka University of Technology), Koroku Nishizawa (Nagaoka University of Technology)

キーワード: damping control，IPMSM，root locus，V/f control

要約(英語): This paper proposes a novel feedback control loop based on damping control in a V/f control for stabilizing interior permanent magnet synchronous motors (IPMSMs) with a long electrical time constant. A problem with the conventional damping control is that the ignored roots move to the unstable region due to the conventional damping gain K1. In addition, the ignored roots are prone to become unstable because of its long electrical time constant. Therefore, a novel method is proposed to solve this instability problem. In this paper, first, a boundary condition of the stable region is derived based on the state equation. Then, a novel current feedback loop is added to the output voltage command. The experimental results show that the motor becomes unstable with the conventional damping control under a rated speed of 0.9p.u. and a rated torque of 0.7p.u. Under general operating conditions, the motor is stabilized by employing a novel feedback control loop.

本誌: IEEJ Journal of Industry Applications Vol.8 No.4 （2019） Special Issue Ⅰ on “JIASC 2018”　Special Issue Ⅱ on “IPEC-Niigata 2018”

本誌掲載ページ: 592-599 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejjia/8/4/8_592/_article/-char/ja/