Improved parameter modeling of interior permanent magnet synchronous motorbased on finite element analysis

This paper presents an investigation of the parameter modeling on the basis of an improved Finite Element (FE) analysis in which the variable frequenc y characteristic in field weakening is considered in Interior Permanent Mag net Synchronous Motors (IPMSM). The parameters of IPMSM have a nonlinear ch aracteristics under variable load conditions and due to the current phase a ngle in a system fed inverter. From the analysis of FE, a new vector contro l algorithm is proposed by neural network using a variable inductance estim ator. The performances of variable frequency are simulated by using the pro posed algorithm, and the validity of the proposed FE analysis is compared w ith experimental results.