Permanent Magnet Motor Modeling Kaila Krieser, EE Dan Montgomery, EE Craig Christofferson, EE Mark Wisted, EE Dr. Mani Mina, Advisor Dr. David Jiles, Advisor.

Permanent Magnet Motor Modeling

Kaila Krieser, EE

Dan Montgomery, EE

Craig Christofferson, EE

Mark Wisted, EE

Dr. Mani Mina, Advisor

Dr. David Jiles, Advisor

Dave Sowders, Kansas City Plant Client

Problem Objective The team will select, use and assess an

electromagnetic modeling software tool to simulate Permanent Magnet Motor operation in variable magnet and environmental configurations.

Key Steps:1. Selection of Tool2. Selection of Model3. Modeling Execution4. Experimental Validation

Conceptual Sketch

Modeling Software Tool

Evaluation

Industry

Research

Design Motors

Magnet Material Experiments

Other Electromagnetic

Modeling Problems

System Block DiagramResearch• PMM Function• PMM Modeling Fundamentals• Performance Characteristics• Magnetic Material Characteristics

Selection• Software • PMM CAD File

Simulation• FEMM• Opera-2D• ANSYS EM• MagNet

Software Evaluation• Accuracy (Stretch Goal: Physical Testing

• Cost• Usability• Magnet Materials• Performance Characteristics

Functional Requirements Modeling Tool for Permanent Magnet Motor

Various modeling tools will be evaluated for accuracy, available measurement parameters, usability and cost.

Motor Model Selection The selection of the motor model will be based on

complexity and obtainable matching CAD files Motor Simulation

Following the selection of the tool and the model, the simulation of the chosen motor will be executed with the software.

Stretch Goal: Motor Evaluation and Test Results In order to validate the modeling software’s efficiency,

torque, and power output data for a permanent magnet motor, the motor must be tested in a real-world situation.

Constraint Considerations Matching CAD File and Software Modeling Software Tool Training Cost Time Stretch Goal: Matching Motor and CAD File

Deliverables Software Evaluation Report

Software Overview Software Usability

Demonstration of CAD simulation Evaluation of PMM testing

Validation of simulation results

Technology Consideration Modeling Tool

Cost and Availability Usability and Training Resources Measurement Parameters Magnet Material Library Stretch Goal: Simulation Environmental Dependencies

PMM Model Cost and Availability Compatibility to Modeling Software Tool

Stretch Goal: Physical PMM Cost Size and Complexity Matching Motor and CAD File

Risks & Mitigation Change in Client’s Expectations Lack of Expertise

Cost EstimateItem Cost ($USD)

Modeling Software Tools

MagNet Infolytica 1800.00

ANSYS (Share Cost) 500.00

Vector Fields (30 Day Trial) 0.00

Foster Miller (Free Ware) 0.00

PMM

Used Appliance 200.00

New Motor 300.00

Magnet Variations

- NdFeB 25.00

- Samarium Cobalt 25.00

- Ceramic 25.00

- Alnico 25.00

Labor

Miss Kaila Ann Krieser 4500.00

Craig Christofferson 4500.00

Mark Wisted 4500.00

Daniel Montgomery 4500.00

Total Project Cost (software included) 20,900.00$

Total Project Cost (software excluded) 18,600.00$

Market Survey A comparative analysis from a prospective

engineering graduate is not readily available to the client, software companies, and research community.

The research and development style of this project produces intellectual deliverables. As such, similar projects are uncommon.

Research PMM Function

Components Rotor Stator Air gap

Brushless DC AC Motor Operation

Stator

Rotor

Permanent Magnets

Air Gap

Stator Windings

Research Modeling Fundamentals

Finite Element Analysis Polygonal Mesh Modeling 2D versus 3D Analysis Solvers

Static, Transient Time Harmonic

Research Performance Characteristics

Magnetomotive Force Reluctance Permeance Flux Linkage Cogging Torque Output Torque Efficiency and Loss

Electrical or Copper Losses Core Losses Mechanical Losses Stray Losses

Research Magnet Material Characteristics

Permeability Retentivity Hysteresis Maximum Energy Product Remanence or Residual Magnetizaion Coercivity Curie Temperature

Research Magnetic Materials

Ferromagnets Alnico Ceramic Samarium Cobalt Neodymium-Iron-Boron (NdFeB) Comparison of Materials

Modeling Software Tools Finite Element Method Magnetics (FEMM)

Simple, free software Cobham Opera-2D

Advanced, free 30 day trial ANSYS Electromagnetics Solutions

Advanced, department provided Infolytica MagNet

Dr. Jiles (Department Chair) recommended, Dr. Jiles provided

Evaluation Criteria Cost Usability Performance Characteristics Variability Magnetic Material Variability Environmental Variability Interpretation of Simulation Results Output Data Accuracy

Stretch Goal: Physical Testing Magnetomotive Force

Gaussmeter and Fluxmeter Flux Linkage

Back EMF Cogging Torque

Specific experimental apparatus Output Torque

Dynamometer Efficiency

Electrical power in versus mechanical power out

Current Project Status Modeling Software Tool Status FEMM Modeling Research Evaluation Motor Options Project Contacts

Dr. David Jiles Dr. Faris Al-naemi Dr. Mani Mina David M. Sowders Dr. William McCallum

Project Milestones & Schedule

Member Contributions Kaila Krieser

Weekly Reports Magnetic Material Research

Mark Wisted FEMM Modeling Software Research Website

Dan Montgomery Communicator Motor Research

Craig Christofferson Contacted Software Companies FEMM Modeling

Future Plan Remaining questions Narrow modeling software tool options for

client by middle of February Acquire evaluation motor by the beginning of

February with magnetic variation Stretch Goal: Start physical testing by March

Questions?