1. Permanent Magnet Motor Modeling Software Evaluation Kaila Krieser, EE Dan Montgomery, EE Craig Christofferson, EE Mark Wisted, EE Dr. Mani Mina, Advisor Dave Sowders, Kansas City Plant Client

2. Project Objective  Client: The Electrical Engineer student will select, use and assess an electromagnetic modeling software tool to simulate Permanent Magnet Motor operation in variable magnet and environmental configurations.  Revised: Design an evaluation package to select, use, and assess electromagnetic modeling software tools for permanent magnet motor simulations in variable magnet and environmental configurations. The evaluation package will be tested using four acquired software tools and a universal PMM model, designed by the team.

3. Project Plan: System Block Diagram Research  PMM Function  PMM Modeling Fundamentals  Magnetic Material Characteristics  Modeling Software Tools Model Design  Machine parameter selection  Material selection  Machine rating assignment Software Selection  FEMM  ANSYS Electromagnetics  Cobham Opera-2D  Infolytica MagNet Simulation and Testing  Finite element mesh solution  Performance characteristic simulation  Accuracy verification  Infolytica MagNet Software Evaluation  Overall Description  Modeling Performance Characteristics  Notable System Features  External Interfaces  Quality Attributes

4. Project Plan: Market Survey  The intended use of this evaluation is research in the field of permanent magnetic motor modeling software. Specifically, the software will be used to model current and future PMM designs and permanent magnet material enhancements for basis of future purchase and/or production decisions.

5. Project Plan: Functional Requirements  Selection of Modeling Software Tools  Based on availability and cost, four modeling software tools were selected for the project.  Model Design  A general permanent magnet motor will be designed to work with any modeling software and comply with client expectations.  Model Simulation  The model will be simulated with each software to analyze specific performance characteristics, such as flux linkage, back EMF, cogging torque, etc.  Software Evaluation  Each software will be evaluated for effectiveness in making implementation and purchase decisions in industry and research.

6. Project Plan: Deliverables  PMM Model Design  Software Evaluations  Final Report  Project closure conference call

7. Design Approach: Research  PMM Function  PMM Modeling Fundamentals  Finite Element Analysis  Polygonal Mesh Modeling  2D versus 3D Analysis  Static, Transient, and Time Harmonic  Performance Characteristics  Magnetic Material Characteristics  Magnet Materials

8. Design Approach: Modeling Software Tool Selection  Finite Element Method Magnetics (FEMM)  Cobham Opera-2D  ANSYS Electromagnetic Solutions  Infolytica MagNet 2D Static

9. Design Approach: Model Design  Machine Parameter Selection  3 Phase 50 Hz AC, 4 pole, 24 slot motor  Permanent Magnet Definition  PM coercivity = -800 kA/m ~ 1T  μ r = 1  Machine Rating Assignment  P Output = 0.35-0.375 kW ~ ½ hp  V Rated = 415V

10. Design Approach: Simulation and Testing  Possible simulation characteristics: flux linkage, cogging torque, back EMF, output torque, and efficiency.  Measured and simulated characteristics: cogging torque and back EMF.  Simulation method specific to each software, but generally based on finite element analysis and 2D mesh.

11. Design Approach: Software Evaluation Template SectionEvaluation CriteriaWeightScoreWeighted 2 Overall Description20% 2.3 Operating Environment20% 0 2.4 User Documentation, Customer Support30% 0 2.5 Cost and Availability50% 0 Subtotal100% 0 3 Modeling Performance Characteristics50% 3.1 Flux Linkage 3.1.2Usability6% 0 3.1.3Simulation Results6% 0 3.1.4Accuracy8% 0 3.2 Cogging Torque 3.2.2Usability6% 0 3.2.3Simulation Results6% 0 3.2.4Accuracy8% 0 3.3 Back Electromotive Force 3.3.2Usability6% 0 3.3.3Simulation Results6% 0 3.3.4Accuracy8% 0 3.4 Output Torque 3.4.2Usability6% 0 3.4.3Simulation Results6% 0 3.4.4Accuracy8% 0 3.5 Efficiency 3.5.2Usability6% 0 3.5.3Simulation Results6% 0 3.5.4Accuracy8% 0 Subtotal100% 0 4 Notable System Features20% 4.1 Material Flexibility25% 0 4.2 Transient Analysis25% 0 4.3 Notable System Features50% 0 Subtotal25% 0 5 External Interfaces10% 5.1 User Interfaces80% 0 5.2 Software Interfaces20% 0 Subtotal100% 0 WeightScoreWeighted Total100% 0

12. Finite Element Method Magnetics (FEMM)  FEMM provides a simple and quick platform to run basic simulations for model designs, but lacks advance simulations ability.

13. Cobham Opera-2D  Cobham Opera-2D a powerful, yet complicated modeling software tool.

14. Infolytica MagNet  MagNet static 2D is a modeling software tool that is usable and effective, but transient analysis was not available.

15. ANSYS Electromagnetic Solutions  ANSYS Electromagnetics is a modeling software tool with transient analysis that enables a variety of measurements to be analyzed from a single simulation.

18. Summary/Recommendation  ANSYS EM is the best fit modeling software tool for the scope of this project.

19. Project Milestones & Schedule

20. Cost

21. Questions?