Non-linear control of an induction motor: sliding mode theory leads to robust and simple solution
✍ Scribed by Rui Esteves Araújo; Diamantino Silva Freitas
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 272 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0890-6327
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✦ Synopsis
A robust feedback control of an induction motor is proposed. The theoretical basis is a continuous-time machine model de"ned by a pair of simultaneous complex-coe$cients di!erential equations. The parameter uncertainties and load perturbations are considered in the controller design. The control methodology is based on sliding mode control techniques. The design of a sliding mode controller for tracking the torque and the rotor #ux of an induction motor drive is also given. The design includes the hardware structure, control laws for torque control and rotor #ux control. The modulation is de"ned as part of the variable structure control algorithm which enables an optimum choice of the output voltage of the static converter. The validity and robustness of the proposed control system were veri"ed by simulation. The simulation results are presented to demonstrate their agreement with the theoretical predictions of the proposed controller.