Abstract
Concerns about advantages such as high efficiency and power density, small size and weight as well as fast dynamic response contribute to the increasing industrial applications of high speed permanent magnet machines (HSPMMs). This paper presents a review on the design and analysis technologies for HSPMMs. Specifically, the stator/rotor structures and materials used in HSPMMs are firstly introduced. Then, the calculation models in terms of stator copper loss, stator iron loss, rotor eddy-current loss and air-friction loss are summarized. Because of the non-negligible influences of high working temperature on motor performance, different calculation approaches of HSPMM temperature distribution and rise as well as the cooling methods are compared. Moreover, the research status of HSPMM mechanical characteristics, including the rotor material strength, bearing support and dynamic behaviors, are analyzed, followed by the conclusions and future directions.
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