誘導電動機の1次鎖交磁束ベクトル制御
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概要
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This paper presents a precise expression discribing the phenomena for a primary flux linkage controlled-induction machine.In the analysis and synthesis of a vectorcontrolled induction machine driven by a PWM inverter, control inputs are stator voltages and a stator angular frequency.In the induction machine, rotor flux and secondary current produce torque. The β axis component perpendicular to the rotor flux, which makes contribution to the generated torque and must be controlled to be zero in the case of secondary flux control, does not become zero. Therefore, the primary current component in the direction of the primary flux linkage is directly affected for the variation of the primary current component proportional to the generated torque. Such the phenomena is undesirable for the purpose of an ideal vector control.In this paper, it becomes clear that the conditions for a decoupling control are derived by considering an equivalent circuit on the basis of the primary flux linkage reference frame. A high torque response is obtained from a comparison of the primary flux linkage control with the secondary flux linkage control. We propose a system synthesis method on the basis of an optimal control theory which attains the speed control, the vector control by the primary flux linkage control and the primary flux constant control simultaneously. The availabilities of the proposed method are shown from simulation results.
- 公益社団法人 計測自動制御学会の論文
公益社団法人 計測自動制御学会 | 論文
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