대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1998년도 추계학술대회 논문집 학회본부 B
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- Pages.438-441
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- 1998
미지의 회전자 저항을 갖는 유도기의 적응 자속 관측자 설계
An Adaptive Flux Observer of Induction Motors with Unknown Rotor Resistance
- Kim, Do-Woo (Dept. of Elec. Eng., Hanyang University) ;
- Yang, Hai-Won (Dept. of Elec. Eng., Hanyang University) ;
- Yoon, Ji-Sup (KAERI) ;
- Park, Byung-Suk (KAERI) ;
- Kim, Hong-Phil (Kyungil University)
- 발행 : 1998.11.28
초록
In this paper, we proposes an adaptive flux observer to estimate initial values of rotor fluxes and unknown rotor resistance. The error system between the model of induction motor and a proposed observer is devided as a fast subsystem and a slow one by a singular perturbation system. The fast subsystem is exponentially convergent on a boundary-layer. And the overall error system is reduced to a quasi-steady-state system. The adaptive law for an unknown rotor resistance is designed to stabilize the approximate error system. As computer simulation results show, the proposed adaptive flux observer estimates fast initial values of rotor fluxes and unknown rotor resistance.
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