Variable-Speed Induction Machine Performance Computed Using Finite-Element

Abstract—This paper describes a finite-element (FE) procedure particularly suitable for the prediction of a controlled induction motor (IM) performance. The FE analysis is carried out in the rotor flux reference frame so that only magnetostatic FE sim- ulations are used, reducing the computational time. The use of magnetostatic simulations allows to consider the saturation effects in all the machine parts during all computations. The proposed procedure is suitable for both the analysis and design of IMs, allowing a careful prediction of the drive performance during the various design steps before prototyping. Experimental tests are included in this paper to confirm the accuracy of the predictions achieved by the proposed procedure.