전기학회논문지P (The Transactions of the Korean Institute of Electrical Engineers P)

  • 제57권2호
  • /
  • Pages.127-134
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  • 2008
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  • 1229-800X(pISSN)
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  • 2586-7792(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

비선형 외란 관측기를 이용한 유도전동기의 강인 적응 백스테핑 제어

Robust Adaptive Backstepping Control of Induction Motors Using Nonlinear Disturbance Observer

  • 발행 : 2008.06.01
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초록

In this paper, we propose a robust adaptive backstepping control of 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 fuzzy neural network(FNN) 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

참고문헌

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