Electric Motor Thermometry

Remote in-situ permanent magnet thermometry using blackbody radiation

Description

This work is focused on developing a direct optical thermometry technique for permanent magnets (PMs) embedded in a rotor of an electric motor (EM). Although high temperatures can be critical to an EM’s performance, the lack of reliable and accurate PM thermometry increased the uncertainty of the motor conditions during operation. The developed technique can be configured to resolve all the PM surface temperatures embedded in the rotor as well as the rotor core temperature very accurately with little to no modification.

The technique has been successfully demonstrated in-situ on an IPMSM.

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