Title :
A new approach to control non-standard induction machines, using a fuzzy logic algorithm
Author :
Vrey, C.C.A. ; Shaw, I.S. ; van Wyk, J.D. ; Barnard, J.M.
Author_Institution :
Energy Lab., Rand Afrikaans Univ., Johannesburg, South Africa
Abstract :
Because of the widespread use of induction machines, the design of a control system, that is independent of any parameter changes, is necessary. Normally PI-controllers are used, with slip controllers, to determine the slip. The slip value is added to the synchronous frequency to achieve a certain set point value. The PI-controller is replaced with a fuzzy controller because it is independent of any changes in the system parameters. A battery operated wheelchair, using nonstandard 3-phase cage rotor induction machines is used as a drive system together with an inverter that is controlled by a microcomputer
Keywords :
asynchronous machines; control system synthesis; fuzzy control; machine control; slip (asynchronous machines); two-term control; PI-controllers; battery operated wheelchair; control nonstandard induction machines; control system design; fuzzy logic algorithm; inverter; microcomputer; nonstandard 3-phase cage rotor induction machines; set point value; slip controllers; synchronous frequency; Batteries; Control systems; Fuzzy control; Fuzzy logic; Fuzzy systems; Induction machines; Microcontrollers; Pulse width modulation; Pulse width modulation inverters; Wheelchairs;
Conference_Titel :
Industrial Electronics, Control and Instrumentation, 1994. IECON '94., 20th International Conference on
Conference_Location :
Bologna
Print_ISBN :
0-7803-1328-3
DOI :
10.1109/IECON.1994.397984
