Robust Backstepping Control of Induction Motor Drives Using Artificial Neural Networks and Sliding Mode Flux Observers
محل انتشار: ماهنامه بین المللی مهندسی، دوره: 20، شماره: 3
سال انتشار: 1386
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 111
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شناسه ملی سند علمی:
JR_IJE-20-3_002
تاریخ نمایه سازی: 20 اسفند 1400
چکیده مقاله:
In this paper, using the three-phase induction motor fifth order model in a stationary twoaxis reference frame with stator current and rotor flux as state variables, a conventional backsteppingcontroller is first designed for speed and rotor flux control of an induction motor drive. Then in orderto make the control system stable and robust against all electromechanical parameter uncertainties aswell as to the unknown load torque disturbance, the backstepping control is combined with artificialneural networks in order to design a robust nonlinear controller. It will be shown that the compositecontroller is capable of compensating the parameters variations and rejecting the external load torquedisturbance. The overall system stability is proved by the Lyapunov theory. It is also shown that themethod of artificial neural network training, guarantees the boundedness of errors and artificial neuralnetwork weights. Furthermore, in order to make the drive system free from flux sensor, a slidingmoderotor flux observer is employed that is also robust to all electrical parameter uncertainties andvariations. Finally, the validity and effectiveness of the proposed controller is verified by computersimulation.
کلیدواژه ها:
نویسندگان
Reza Yazdanpanah
Electerical Engineering, Larestan Higher Education Complex
J. Soltani
Electerical Engineering, Isfahan University of Technology