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The interior permanent magnet motor is the central component of modern high performance hybrid electric vehicles. During the vehicle's normal operation, demagnetization can occur in the magnets due to temperature rise and high current loading, which could change the IPM's electrical and mechanical characteristic and the overall system performance significantly. To study these effects on the system...
This article reports on a finite element analysis assisted optimisation strategy for a moving iron, transverse flux, short stroke linear generator for free-piston Stirling engine applications. The optimisation goal is to maximise the power-to-weight ratio while maintaining preset power and efficiency levels. The topology and the implementation of the optimisation strategy are described, followed by...
Flux-reversal machine (FRM) is a new doubly salient stator-permanent magnet (PM) machine with flux linkage reversal in the stator concentrated windings. It can operate in both motoring and generating modes. Its simple structure makes it cost effective and suitable for mass production. However, there is notable permanent magnet flux leakage which deteriorates the torque ability of the FRM. In this...
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