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Despite an ever-growing interest, a lot of questions related to the design and operation of high-speed permanent-magnet synchronous machines remain unanswered. One aspect of such high-speed machines that requires special attention is the effect of the shielding cylinder (SC), a conductive sleeve that is wrapped around the magnets and which’ goal is to reduce the rotor losses and/or retain the magnets...
The interest for high-speed Permanent-Magnet Synchronous Machines (PMSMs) is high. Often such machines are equipped with a conductive sleeve that is wrapped around the magnets, i.e. the Shielding Cylinder (SC). Its goal is to reduce the overall rotor losses, thereby protecting the magnets from overheating. In such machines torque is produced in two ways [1]; due to interaction between the magnets...
Recently the interest in permanent-magnet synchronous machines (PMSMs) operating at high speed has grown. However, a lot of design and operation questions remain unanswered. This work aims at studying the effect of the number of pole pairs, the number of slots per pole per phase and the coil throw on the torque and the torque ripple in high-speed PMSMs. High-speed machines are often equipped with...
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