Problem 30: Electromagnetic Field Analysis of a Special Induction Motor for Variable-Frequency Variable-Speed Drive

摘要

The mathematical model of the whole magnetomotive force drop in the special induction motor of variable-frequency variable-speed drive is present-ed based on the 2-D finite clement electromagnetic field method. Combining the method with the traditional equivalent circuit method, the analysis of a developed prototype with the different rotor slot models, the different rotor conductors and the different size of the rotor slot opening are given. The comparison of the calculated performance and the tested performance of the prototype are made.