A novel linear induction motor equivalent-circuit with optimized end effect model

A new method to model the end effect for single-sided short-primary linear induction motors (LIMs) is developed by considering the effect of nonzero leakage inductance of the secondary. The well-established equivalent circuit model-introduced by Duncan in the 1980s-is improved by taking nonzero leakage inductance into account. This new approach closes the gap between predictions and test results of a transit LIM. It also allows for reliable model utilization in engineering practice. The analytical predictions are verified with the field test data collected from a full-scale LIM designed for public transit systems.