Conference: 2019 22nd International Conference on the Computation of Electromagnetic Fields (COMPUMAG)
Authors: Min Ro Park, Hae Joong Kim, Ho Young Lee, Myung Seop Lim
DOI:
This paper proposes an analytical model for the parameter estimation of the permanent magnet synchronous motor (PMSM) considering the magnetic nonlinearity. The proposed analytical model consists of a simple equivalent magnetic circuit (EMC) and equations. At this time, the simple EMC compensates for the limitation of the equation, with which is difficult to consider the magnetic nonlinearity. From the proposed EMC, the stator reluctance is calculated, which reflects nonlinearity for parameter calculation. Then the parameters are calculated mathematically through the proposed equation, which reflect the calculated stator reluctance. Finally, the proposed analytical model is verified via finite element analysis (FEA). As a result, the maximum errors of the back electromotive force and the inductance are smaller than 5%.