Novel motor cooling technique could boost lives and efficiencies

摘要

RESEARCHERS AT THE University of Sheffield have embarked on a two-year project aimed at developing a novel liquid cooling technology for electrical machines that could cut end-winding temperatures by more than 30°C compared to forced-air-cooled machines with rotor-mounted fans. The technique could boost machine efficiencies and prolong their lives. The research, backed by a ￡461,859 grant from the Engineering and Physical Sciences Research Council (EPSRC), will focus on cooling end-windings which are often the hottest part of a machine and thus have the biggest impact on efficiencies, power densities and lifespans.