Abstract:
In this article, the interior permanent magnet synchronous motor (IPMSM) using ferrite permanent magnet (PM) for micro-electric vehicle (EV) traction is proposed. The cha...Show MoreMetadata
Abstract:
In this article, the interior permanent magnet synchronous motor (IPMSM) using ferrite permanent magnet (PM) for micro-electric vehicle (EV) traction is proposed. The characteristics of V-type IPMSM using Nd PM and a motor of the same shape using ferrite PM are analyzed when applied to micro-EV traction, the cases of power dissatisfaction with ferrite PM motor are derived, and the improvement methods are presented. Based on the improvement method, the rotor outer diameter, PM layer, and PM ratio are considered in the initial design. After the initial design, a two-stage optimization method is introduced to reduce the number of samples required. The first optimization is performed considering the power of the driving area, mechanical stiffness analysis during high-speed rotation, and low-temperature demagnetization analysis of ferrite PM. Then, the second optimization is performed considering the main operating points (MOPs) of the efficiency perspective and the MOPs of the frequency perspective through micro-EV model. Based on the design results, the possibility of a motor for micro-EV using ferrite PM is suggested by comparing the performance with the existing motor using Nd PM. Experiments are conducted on the manufactured motor, and the validity of the design results is verified by comparing the test results and FEA results.
Published in: IEEE Transactions on Magnetics ( Volume: 60, Issue: 9, September 2024)
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- IEEE Keywords
- Index Terms
- Two-stage Optimization ,
- Ferrite Permanent Magnet ,
- Outer Diameter ,
- Finite Element Analysis ,
- Improved Method ,
- Permanent Magnet ,
- Diameter Ratio ,
- Permanent Magnet Synchronous Motor ,
- Finite Element Analysis Results ,
- Objective Function ,
- Phase Difference ,
- Rare Earth Elements ,
- Weighting Factor ,
- Mechanical Performance ,
- Power Factor ,
- Operating Frequency ,
- Magnetic Flux ,
- Electrical Performance ,
- Maximum Torque ,
- Flux Linkage ,
- Torque Ripple ,
- Traction Motor ,
- Permanent Magnetic Field ,
- Max Speed ,
- Magnetic Torque ,
- Ratio Of Core ,
- Current Angle ,
- Number Of Design Variables ,
- Vector Diagram ,
- Motor Efficiency
- Author Keywords
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- Two-stage Optimization ,
- Ferrite Permanent Magnet ,
- Outer Diameter ,
- Finite Element Analysis ,
- Improved Method ,
- Permanent Magnet ,
- Diameter Ratio ,
- Permanent Magnet Synchronous Motor ,
- Finite Element Analysis Results ,
- Objective Function ,
- Phase Difference ,
- Rare Earth Elements ,
- Weighting Factor ,
- Mechanical Performance ,
- Power Factor ,
- Operating Frequency ,
- Magnetic Flux ,
- Electrical Performance ,
- Maximum Torque ,
- Flux Linkage ,
- Torque Ripple ,
- Traction Motor ,
- Permanent Magnetic Field ,
- Max Speed ,
- Magnetic Torque ,
- Ratio Of Core ,
- Current Angle ,
- Number Of Design Variables ,
- Vector Diagram ,
- Motor Efficiency
- Author Keywords