適応二次磁束オブザーバを用いた速度センサレスベクトル制御系のパラメータの影響

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タイトル別名
  • Influence of Controller Parameters of Vector Control System without Speed Sensor using the Adaptive Rotor Flux Observer
  • テキオウ 2ジ ジソク オブザーバ オ モチイタ ソクド センサレス ベクトル セイギョケイ ノ パラメータ ノ エイキョウ

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説明

The vector control of induction motor is widely used. This method needs accurate motor parameter but the stator and rotor resistance vary due to motor temperature variation. The indirect field oriented control of an induction motor requires value of rotor resistance only, but the direct field oriented control method with rotor flux observer requires value of not only rotor resistance but also stator resistance in the controller. The vector control of induction motor without a speed sensor requires the estimations of rotor flux and the rotor speed. Since the estimations use the machine parameters and the stator voltage and current components as input quantities, the stability of the system is sensitive to the variations of the machine parameters. In this paper, the direct field oriented control system of the induction motor without a speed sensor using the adaptive rotor flux observer (MRAS method) is studied. The step responses are calculated to investigate the influences of controller parameters.

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