Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2009.07a
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- Pages.1656_1657
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- 2009
Rotor Resistance Estimation Of Induction Motor With Model uncertainty Using NonLinear Disturbance Observer
비선형 외란 관측기를 이용한 모델 불확실성을 고려한 유도전동기의 회전자 저항 추종
- Arsalan, Arif (Hanyang University) ;
- Park, Ki-Kwang (Hanyang University) ;
- Lee, Sun-Young (Hanyang University) ;
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Yang, Hai-Won
(Hanyang University)
- Published : 2009.07.14
Abstract
This paper presents a new method for estimating rotor resistance of induction motor. The rotor resistance changes dramatically with temperature and frequency. Speed is controlled by PID as it is simplest and most intuitive control method. The change in rotor resistance has a great influence on the performance of IM. In this paper rotor resistance is estimated using Non Linear Disturbance Observer. The model uncertainty and system non linearity are treated as disturbance in this method. Using NDO it does not require an accurate dynamic model to achieve high precision motor control. Controller with NDO has more superior tracking performance. Simulation results are presented to show the validity of the proposed controller.
Keywords