Comparative Study of Ferrofluid Cooling for Permanent Magnet Machines With Different Winding Structures
Wei Zhang,
Guang-Jin Li,
Ying Qin
Abstract:This paper investigates the influence of single-and double-layer winding structures on the thermal performances of fractional slot permanent magnet (PM) machines with ferrofluid cooling. Ferrofluid is an oil-based liquid with nano-sized ferromagnetic particles and has been injected into the end space of these machines. Owing to the magnetic body force produced by the end-winding leakage flux, the ferrofluid can circulate without the need for external pumps. This enables the establishment of an effective heat t… Show more
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