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유도전동기 토오크 및 속도의 속응제어를 위한 벡터제어 시스템에 관한 연구
황락훈(Lak-Hoon Hwang),나승권(Seung-Kwon Na),김주래(Joo-lae Kim),이춘상(Chun-Sang Lee),조문택(Moon-Taek Cho) 전력전자학회 2000 전력전자학술대회 논문집 Vol.2000 No.11
In this paper, Induction motor speed and torque are usually controlled by the fol1owing three ways slip frequency control, vector control and torque constant control. But there have been little analyses on the transient characteristics in these methods.<br/> Furthermore, since the control system is complex and/or has much problems in its implementation and transient characteristics, it is relatively difficult to apply these methods to the rapid response control for the precision machinery in these days.<br/> Accordingly, this thesis presents a nonsymmetrical T-type equivalent circuit instead of a conventional symmetrical T -type equivalent circuit, and suggests that the rapid response control can be done since the transient characteristics are considerably improved m the voltage source in the voltage source inverter control by the analysis of the equivalent circuit. The experiment has shown that the constant speed control is possible for any load variation, and the response of the torque and speed is rapid for any torque variation.