Experimental verification of temperature effects on functional parameters in a line start permanent magnet synchronous motor

Abstract The paper deals with the finite element (FE) analysis of the temperature influence on functional parameters of the line start permanent magnet synchronous motor (LSPMSM). The two‐dimensional (2D) FE model of coupled electromagnetic and thermal phenomena in the LSPMSM was described. The non‐linearity of the magnetic circuit and the influence of temperature on the magnetic properties of permanent magnets, as well as on the electric and thermal properties of the materials, have been considered. To analyse the effect of temperature on the functional parameters of a line start permanent magnet synchronous motor, in‐house software was elaborated. The simulation results were validated by measurements of the prototype motor on a specially designed and constructed measuring test stand. The results of the research on experimental verification of temperature effects on functional parameters in the LSPMSM were presented, and the conclusions resulting therefrom have been formulated.