Improvement of Pull-Into-Step of Synchronous Motors by Nonlinear State Feedback Control.

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  • 非線形状態フィードバック制御による同期電動機の同期引入れ特性の改善
  • ヒセンケイ ジョウタイ フィードバック セイギョ ニ ヨル ドウキ デンドウキ

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Abstract

The nonlinear state feedback control of field voltage to improve the pull-in performance of the synchronous motors is proposed in this paper. This nonlinear control is valid in all operating area. The machine constants are equivalently changed by the nonlinear control to improve the pull-in performance. Since the system is represented with a nonlinear system, the stability of this system is judged by Lyapunov's direct method. The optimal feedback gains of the controller are determined by using Lyapunov function. The validity and usefulness of proposed method are investigated by numerical calculations and experiments.

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