대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2008년도 제39회 하계학술대회
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- Pages.1509-1510
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- 2008
비선형 외란 관측기를 이용한 유도전동기의 적응 속도제어기 설계
Design of an Adaptive Speed Controller for Induction Motors Using Nonlinear Disturbance Observer
- Hwang, Young-Ho (Hanyang University) ;
- Lee, Sun-Young (Hanyang University) ;
- Chung, Kee-Chull (Taeduk College) ;
- Han, Byoung-Jo (Hanyang University) ;
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Yang, Hai-Won
(Hanyang University)
- 발행 : 2008.07.16
초록
In this paper, we propose a robust adaptive controller for induction motors with uncertainties using nonlinear disturbance observer(NDO). The proposed NDO is applied to estimate the time varying lumped uncertainty which are derived from unknown motor parameters and load torque, but NDO error does not converge to zero since the derivate of lumped uncertainty is not zero. Then the high order neural networks(HONN) is presented to estimate the NDO error such that the rotor speed to converge to a small neighborhood of the desired trajectory. Rotor flux and inverse time constant are estimated by the sliding mode adaptive flux observer. Simulation results are provided to verify the effectiveness of the proposed approach.
키워드