Title :
Steady-state control of an induction motor with compensation for thermal variation of winding resistance
Author :
Green, T.C. ; Williams, B.W.
Author_Institution :
Dept. of Electr. & Electron. Eng., Heriot-Watt Univ., Edinburgh, UK
Abstract :
The effects of saturation on the terminal conditions of an induction motor are examined to provide information on the flux in the machine. A signal is extracted from the observed nonideal waveforms to allow tuning of the model used by the motor controller. This general principle is tested in one special case. A scalar controller, incorporating a form of phase current sensing utilizing the DC link fault current transducer, is known to be sensitive to thermal variation of the stator winding resistance. The phase angle of the point of the motor is chosen as the nonideal property on which tuning of the resistance parameter for thermal variation is based. The insulated gate bipolar transistor controller is implemented and tested with an inverter and a 500 W cage induction motor.<>
Keywords :
electric resistance; induction motors; machine control; machine windings; 500 W; DC link fault current transducer; induction motor; insulated gate bipolar transistor controller; inverter; stator; winding resistance thermal variation; Data mining; Fault currents; Induction motors; Insulated gate bipolar transistors; Inverters; Stator windings; Steady-state; Testing; Thermal resistance; Transducers;
Conference_Titel :
Industry Applications Society Annual Meeting, 1989., Conference Record of the 1989 IEEE
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/IAS.1989.96687
