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In this paper a comparative analysis is reported between Surface Mounted Permanent Magnet (SMPM) and Interior Permanent Magnet (IPM) Synchronous Motor for low Power rating application using ANSYS Software. In this study, a 0.55Kw, 220V rated Permanent Magnet Synchronous Motor (PMSM) with two different structures is considered. Here both electromagnetic (i.e. Air gap magnetic flux density) and electromechanical properties (i.e. torque) are considered for obtaining the target. In addition, Iron loss and is also involved for comparison. The results of the analysis were confirmed by Finite Element (FE) Analysis and were based on a simplified analytical model based on a given rating. Results obtained through this method, for validated with the result reported in the literature. Further modification is also done in the parameters and those results are also reported.

In industry, the most frequently used motors are induction motors (IMs), reluctance motors, and permanent magnet synchronous machines (PMSMs). Nowadays because of higher efficiency with higher power density, PMSM attracts its uses in every field of application. Hence, a spoke shape interior PM-based synchronous motor (IPMSM) with distributed winding is considered to discuss in this paper. Also, there has always been a dispute between 2D and 3D analysis of electromagnetic parameters of machines. Therefore, this paper discusses the accuracy, advantages, and difficulty level of 2D and 3D FEM analysis of the IPM motor model by considering several electromagnetic with electromechanical parameters such as torque, flux linkage, eddy current loss, etc. The performance of five different core materials is also considered for comparison. These analyses are carried out by using ANSYS Maxwell software. Spoke shape IPMSM of 0.55 kW with 220 V, 50 Hz is considered for analysis. The 2D and 3D comparison results of parameters under magnetostatic and transient conditions are presented and verified with the results reported in the literature. 2D FEM analysis has given more value in case of torque, stator current, and magnetic flux density than 3D analysis where as 3D analysis is give good performance for flux linkage, back EMF, and eddy current losses. Significant percentage changes with respect to observed materials in the results of 2D and 3D cases are reported. Silicon Steel M36 suitability for stator and rotor core is also observed. This 2D and 3D FEM analysis clarifies accuracy prior to design motor.

Study and performances analysis of magnet design on rotor surface of permanent magnet synchronous machine (PMSM) based on finite element method (FEM) is presented. Three-phase PMSM has been investigated and numerical simulation performed using FEM with the aid of ANSYS Maxwell 2018.1 software. This research presents the positional variation of permanent magnets and their effects on the performance of the three-phase PMSM. The FEM is used as a technique for simulation besides the possibility of dealing with nonlinear equations. The PMSM involves a complex electromagnetic reaction, the authors used the ANSYS program to analyze and represent the performance of the motor under variable conditions. The case studied in this proposal is for three phases 220V, 50Hz, 0.55kW PMSM. Five rotor topologies namely, (i) spoke/tangential, (ii) saturable bridge/ U-shape (iii) V-shape (iv) radial, and (v) segmented bridge permanent magnet (PM) rotor is considered in the study. The aim of this research is to investigate the effect of a variety of rotor designs with different positions of magnets on efficiency, phase current, air gap magnetic flux density, and torque of PMSM. The ANSYS software has been used to model and simulate all topologies considered. In addition to the overall efficiency at steady state, electromagnetic and mechanical parameters are evaluated for each topology and comparative results are reported. The developed 2-D model shows the magnetic field distribution and performance of operational parameters under transient and steady-state conditions. The rotor shape with the smallest magnet volume is highly affecting the torque, magnetic flux, efficiency, and torque ripple. Radial force distribution with demagnetization of PM is also studied and results are reported. The obtained results show that significant changes in motor performance because of variation of PM design.