Title :
Fuzzy logic techniques applied to the control of a three-phase induction motor
Author :
Afonso, João L. ; Fonseca, Jaime ; Martins, Júlio S. ; Couto, Carlos A.
Author_Institution :
Dept. of Ind. Electron., Minho Univ., Portugal
Abstract :
Until not long ago, most fuzzy logic based control applications were limited to the management of user interfaces, sensors and actuators, corresponding to slow software operation. These techniques are specially appropriated whenever the system model is nonlinear and/or difficult to obtain. Is it viable to use fuzzy logic in faster “real time” applications? Is it interesting to use these techniques even when the system model is known (including linear cases)? The authors are trying to answer some of these questions by applying fuzzy logic to control electrical machines. In this paper, they use a slip control scheme for a three-phase induction motor fed by a voltage-source PWM inverter as an example. The evaluation of the fuzzy logic controller behaviour is made through the comparison with a traditional technique (PI controller with antiwindup mechanism), using computer simulation (performed with Matlab/Simulink) and experimental results. Implementation was made using the fuzzyTECH software tool to design the fuzzy logic controller and to produce C-code for an Intel 80C196KC microcontroller. An 1 kW three-phase induction motor fed by a voltage source IGBT power module was used in the experiments
Keywords :
DC-AC power convertors; PWM invertors; control system analysis computing; control system synthesis; electric machine analysis computing; fuzzy control; induction motors; machine control; machine testing; machine theory; microcontrollers; 1 kW; IGBT power module; Intel 80C196KC microcontroller; computer simulation; control design; control performance; control simulation; fuzzy logic control techniques; fuzzyTECH software tool; slip control scheme; three-phase induction motor; voltage-source PWM inverter; Actuators; Application software; Computer simulation; Fuzzy logic; Induction motors; Mathematical model; Performance evaluation; Pulse width modulation inverters; User interfaces; Voltage control;
Conference_Titel :
Industrial Electronics, 1997. ISIE '97., Proceedings of the IEEE International Symposium on
Conference_Location :
Guimaraes
Print_ISBN :
0-7803-3936-3
DOI :
10.1109/ISIE.1997.648908