Coupled Finite Element-Circuit Modelling and Parameter Estimation Of Six-Phase Induction Motor

A rapid procedure has been developed for determining six-phase induction machine equivalent circuit parameters using Coupled Finite Element-Circuit modeling. The common Locked Rotor Test (LRT) is replaced by the proposed Removed Stator Test (RST), which provides a rapid determination of rotor equivalent circuit parameters with reduced computational time for the FE model. The proposed procedure suggests three types of analysis to be conducted using the FE model of the machine: removed rotor, no-load, and removed stator analysis. Equivalent circuit parameters have been determined using the proposed FE procedure and compared with the analytically computed one. Different models of the machine are compared at different loading conditions. Results of different modeling techniques have good match.