Premium
Non‐linear control of an induction motor: sliding mode theory leads to robust and simple solution
Author(s) -
Araújo Rui Esteves,
Freitas Diamantino Silva
Publication year - 2000
Publication title -
international journal of adaptive control and signal processing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.73
H-Index - 66
eISSN - 1099-1115
pISSN - 0890-6327
DOI - 10.1002/(sici)1099-1115(200003/05)14:2/3<331::aid-acs587>3.0.co;2-n
Subject(s) - control theory (sociology) , robustness (evolution) , sliding mode control , induction motor , variable structure control , torque , robust control , controller (irrigation) , control engineering , engineering , vector control , control system , voltage , computer science , nonlinear system , control (management) , physics , quantum mechanics , artificial intelligence , electrical engineering , agronomy , biochemistry , chemistry , biology , gene , thermodynamics
A robust feedback control of an induction motor is proposed. The theoretical basis is a continuous‐time machine model defined by a pair of simultaneous complex‐coefficients differential 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 flux of an induction motor drive is also given. The design includes the hardware structure, control laws for torque control and rotor flux control. The modulation is defined 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 verified by simulation. The simulation results are presented to demonstrate their agreement with the theoretical predictions of the proposed controller. Copyright © 2000 John Wiley & Sons, Ltd.