Fuzzy logic based speed control and slip compensation for rotor time constant variations in a field-oriented induction motor drive

Author

Jahmeerbacus, Iqbal ; Bhurtun, Chawdhurry

Author_Institution

Fac. of Eng., Mauritius Univ., Reduit, Mauritius

fYear

2005

fDate

13-16 April 2005

Firstpage

57

Lastpage

62

Abstract

Indirect field oriented (IFO) induction motor drives can provide fast dynamic torque response and track rapid changes in reference speed and load torques. However the decoupled control of torque and flux is affected due to variations in the rotor electrical time constant. As a result, the drive performance is seriously degraded, unless some form of adaptation is employed. This paper presents an IFO drive consisting of two fuzzy controllers, which respectively regulate the rotor speed and adjust the applied slip frequency as a result of detuning. The proposed drive is shown to regulate the rotor flux and maintain field orientation under a wide range of rotor time constant variations.

Keywords

drives; fuzzy control; fuzzy logic; induction motor drives; machine vector control; rotors; slip (asynchronous machines); torque control; velocity control; IFO drive; drive performance; fast dynamic torque response; field orientation; field-oriented induction motor drive; flux decoupled control; fuzzy controller; fuzzy logic based slip compensation; fuzzy logic based speed control; indirect field oriented induction motor drive; load torque; reference speed; rotor electrical time constant; rotor flux; rotor speed; rotor time constant variation; slip frequency; torque decoupled control; Degradation; Frequency; Fuzzy control; Fuzzy logic; Induction motor drives; Induction motors; Rotors; Stators; Torque control; Velocity control;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Cybernetics, 2005. ICCC 2005. IEEE 3rd International Conference on

Print_ISBN

0-7803-9122-5

Type

conf

DOI

10.1109/ICCCYB.2005.1511548

Filename

1511548