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This paper presents a multi-objective optimization of HS-PMSMs (highly-saturated permanent magnet synchronous machines). In addition to typical optimization objects, such as cost, torque ripple, machine losses, power, etc., the capability to control the HS-PMSMs using self-sensing methods is considered. Instead of static magnetic anisotropies, which are commonly used for low-saturated PMSMs, dynamic...
In this paper, a phenomenological 3D hysteresis model using magnetic dipoles, which are mechanically supported on a 3-dimensional grid, is investigated. The different interactions between these dipoles are based on the equations of micromagnetism. Instead of minimizing the free energy in the system by mathematical optimization methods, each elementary dipole is able to rotate into an individual energetically...
A prerequisite for self-sensing field oriented control of PMSM for standstill operation is a sufficient saliency ratio (magnetic anisotropy) of the differential inductances over the desired operating area. High frequency injection methods are very common in order to perform saliency tracking based self-sensing operation. Vanishing saliency for certain operating points or a change of the sign of the...
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