《《JAC017IPM-Inductance-e》.pdf

JMAG Application Note Inductance Analysis of an IPM Motor CONTENTS Overview 2 1 Analysis Scope 3 2 Motor Specification 3 3 Analysis Results 6 4 Analysis Steps 7 5 FEM Model Creation 8 5.1 Mesh Model 8 5.1.1 2D Model 8 5.1.2 Partial Model 8 5.1.3 Air Region 8 5.1.4 Mesh Generation 9 5.2 Material Properties 9 5.3 Analysis Conditions 9 5.3.1 Analysis Control 9 5.3.2 Step 9 5.3.3 Symmetry Boundary 2D 9 5.3.4 Periodic Boundary 10 5.3.5 Motion 10 5.3.6 Slide 10 5.3.7 FEM Coil 11 5.3.8 Circuit 12 6 Inductance Calculation 13 7 Results Display 14 Appendix 15 Appendix A Settings for JMAG Analysis 15 Appendix A.1 Mesh Model Settings 15 Appendix A.2 Material Property Settings 16 Appendix A.3 Analysis Condition Settings 17 Appendix B Settings for PM Motor Inductance Tool 18 JMAG Application Note – Inductance Analysis of an IPM Motor - Overview The purpose of this Application Note is to help JMAG users understand the steps and settings used to calculate Ld and Lq inductances of an IPM motor. The model data from the JMAG Application Catalog can be downloaded to view the analysis model, settings and results described in this Application Note. The organization is as follows: Section 1 Analysis Scope Presents the scope of the analysis. Section 2 Motor Specification Specifies the motor used for the analysis, including the motor geometry, the coil arrangement, the material properties and the orientation of the magnet. Section 3 Analysis Results Shows the inductance results obtained from the analysis. Section 4 Analysis Steps Describes the analysis steps used to ob