PROJECT TITLE :
Modeling and Investigation of Thermal Characteristics of a Water-Cooled Permanent-Magnet Linear Motor
For permanent-magnet linear motors (PMLMs), high-temperature rise can deteriorate their electromagnetic performance and limit their thrust output. A water-cooling system will be utilized to cut back the temperature rise and to boost the thrust density. In order to study the thermal performance of a water-cooled, 14-pole, and twelve-slot PMLM, a finite-component model and thermal network model are developed. Under continuous duty, the temperature distribution of this PMLM is investigated primarily based on the 2 developed models, which are validated by experimental results. The impact of the water-cooling system and also the impact of its parameters on the temperature rise are investigated. Then, the influence of the temperature rise on the motor thrust force and potency is studied. Finally, primarily based on the finite-element model, thermal characteristics of this PMLM beneath short-time duty and intermittent duty are studied, and the link is obtained between the operation period and the utmost allowed short-time current, as well as the impact of load sustained rate.
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