Abstract
A novel mathematic model for a dual three-phase induction motor was proposed. A set of equivalent three-phase windings was built based on same magnetomotive force and power. A dual three-phase induction motor was substituted equivalently by a three-phase induction motor after a winding transformation. Then with the mathematical model of the three-phase phase induction motor in the stationary reference frame, the model of a dual three-phase induction motor was determined. A 4 pole dual three-phase induction motor was simulated and tested. Compared the simulation results with corresponding test results, the maximum error was lower than 2%. So this winding transformation and modeling method are validated and correct.
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