Sensor Less Performance Estimation of Induction Motor

A performance estimation technique for induction motor from generally available measured data under running condition is proposed in this paper. This proposed technique is capable of predicting the motor performance data which emulates the recorded values. The proposed scheme estimates the variation of equivalent circuit parameters under different load conditions. Constant and variable motor losses were also estimated and compared with the measured values. Consideration of motor dynamic model also enables speed estimation of induction motor which makes this scheme capable of using in conjunction with different speed control technique available for sensor less condition monitoring and speed control.