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This paper describes design aspects of low cost electrical machines used for highly integrated 48V starter-generator systems. It is shown that a belt-driven interior ferrite magnet machine with integrated power electronics and controller is a good solution for micro and mild hybridization approach. Considering the given automotive constraints and requirements, a machine design optimisation process...
In this work, we discuss multi-objective design optimization of permanent magnet synchronous motor (PMSM) solved by genetic algorithm (GA) and boundary element method. We choose the decrease of cogging torque and the increase of torque as objectives applied to multi-objective optimization (MO) of automotive permanent magnet synchronous motor. The airgap length, teeth width and magnetization angle...
This paper presents the design concepts and the test results of an electro-mechanical actuator for high-performance pump application. The rotating permanent magnet synchronous motor is integrated with the mechanical component in a rotating-screw architecture in order to minimize the total inertia. The motion trajectory fits the classical profile with high-torque at low-speed and low-torque at high...
The torque ripple of a PM synchronous motor (PMSM) originates from two sources; the cogging torque and mismatch between the back EMF and phase current waveforms. The first source is only related to the magnetic design parameters of PMSM and the second source is related to the effect of the driving circuit on the magnetic design parameters. Therefore, achieving a minimum torque ripple requires a hybrid...
This research work presents a new and efficient design methodology for the specification, development and manufacture of permanent magnet sychronous motors (PMSMs). In this paper a genetic algorithm based design optimisation technique for PMSMs is presented in which the multi-criteria considered in the optimisation are the electromagnetic performance, the thermal performance and the material cost...
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