Simplified design, optimization and comparative study of SPM, BLDC and halbach machines for microsatellite electro-mechanical batteries


Electro-mechanical batteries (EMBs) have many important advantages compared with chemical batteries, especially in low Earth orbit (LEO) satellite applications. Different slotless, external rotor, permanent magnet (PM) machines are prompt and employed in these systems as motor/generator. Synchronous permanent magnet (SPM), brushless dc (BLDC) and Halbach (HB) machines are 3 sorts that are most ordinarily used. During this paper, the best machine will be introduced employing a comparative study. Correct material and structure for house applications are introduced and simplified. The analytic design strategies are given for 3 sorts of machines. Then, all 3 varieties of machines are optimized in order to have a honest comparison. Particle swarm optimization (PSO) is used as the optimization algorithm and therefore the finite element-based mostly simulations are used to verify the planning and optimization method. Finally, the best machine is introduced based mostly on the important parameters during a microsatellite.

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