Field simulation of linear induction motor showing speed dependence of phase-to-phase unbalance

In this paper, results of Field Analysis of a Circular Track SLIM have been shown for the whole speed range at rated voltage and rated frequency. Particular emphasis has been laid on the Phase-to-Phase Unbalance and the resulting ripple in propulsive force. It has been shown that the unbalance becomes more prominent as the speed of the motor increases. It has been shown that the unbalance becomes more prominent as the speed of the motor increases. The Thrust-Speed Characteristic and Current Speed Characteristic are drawn, and validated using the existing Equivalent Circuit Model.