NDLI: Design Tradeoffs Between Stator Core Loss and Torque Ripple in IPM Machines

Content Provider	IEEE Xplore Digital Library
Author	Seok-Hee Han Jahns, T.M. Zhu, Z.Q.
Copyright Year	1972
Abstract	High stator core losses can pose a significant problem in interior permanent-magnet (IPM) machines operating over wide constant-power speed ranges. At lower speeds, the torque ripple can be undesirably large in some IPM machine designs, contributing to acoustic noise and vibration. While previous work has addressed these two problems independently, this paper shows that the conditions for reducing stator core losses during flux-weakening operation, dominated by harmonic eddy-current losses in the stator teeth, can conflict with the conditions for reducing the torque ripple of IPM machines. It is also shown that the resulting design tradeoffs depend on the details of the IPM machine topologies that are under consideration. The appropriate IPM machine topologies that offer more favorable tradeoffs are identified to achieve the best possible compromise of high-speed stator core losses and torque ripple characteristics.
Sponsorship	IEEE Industry Applications Society
Starting Page	187
Ending Page	195
Page Count	9
File Size	1384493
File Format	PDF
ISSN	00939994
Volume Number	46
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Stator cores Torque Teeth Topology Acoustic noise Magnetic flux Industry Applications Society Availability Vehicles Manufacturing torque ripple Flux weakening interior permanent-magnet (IPM) machines magnet layers stator core losses stator slots-per-pole-pair
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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Torque Ripple Reduction in Interior Permanent Magnet Synchronous Machines Using Stators With Odd Number of Slots Per Pole Pair

Reducing Harmonic Eddy-Current Losses in the Stator Teeth of Interior Permanent Magnet Synchronous Machines During Flux Weakening

Analysis of Rotor Core Eddy-Current Losses in Interior Permanent-Magnet Synchronous Machines

Core Losses and Torque Ripple in IPM Machines: Dedicated Modeling and Design Tradeoff

Flux-Weakening Control of IPM Motors With Significant Effect of Magnetic Saturation and Stator Resistance

An Analytical Approach to Magnet Eddy-Current Losses for Interior Permanent-Magnet Synchronous Machines During Flux Weakening

A Review about Flux-Weakening Operating Limits and Control Techniques for Synchronous Motor Drives

Influence of Different Rotor Teeth Shapes on the Performance of Flux Switching Permanent Magnet Machines Used for Electric Vehicles

Design Method and Experimental Verification of a Novel Technique for Torque Ripple Reduction in Stator Claw-Pole PM Machines

Design Tradeoffs Between Stator Core Loss and Torque Ripple in IPM Machines

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Torque Ripple Reduction in Interior Permanent Magnet Synchronous Machines Using Stators With Odd Number of Slots Per Pole Pair

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