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LQ-PID Controller Design for Speed Control of Induction Motor  

이충우 (한양대학교 전기공학과)
서병설 (한양대학교 전기공학과)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SC / v.41, no.3, 2004 , pp. 1-8 More about this Journal
Abstract
This paper proposes an LQ-PID controller to reduce errors occurring between input and output speeds in braking or emergency braking and to solve delay of speed or the excessive overshoot problems occurring at the speed control of induction motor. The conventional LQ controller is a method that move the poles in locations that satisfy design specifications such as overshoot and settling time etc. by state-feedback. So it may not be able to satisfy the overshoot requirement in case of the existence of zero in the closed loop transfer function. To attack this zero-problem it is presented a new design methodology of LQ-PID controller by introducing an analytic technique to eliminate the effect of zeros on the closed loop transfer function.
Keywords
LQ; PID; Induction motor; Speed; Control;
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