Transient Performance Study of High-Specific-Power Motor Integrated with Phase Change Material for Transportation Electrification

The transportation electrification applications are demanding high-power-density and high-efficiency motors. One way to reduce the motor size further is to utilize the motor short-peak-operation transient capability and to design motor on its transient performance customized to the mission profile. Adding more motor heat capacity, such as phase change material (PCM), can extend motor short-peak-operation allowable time. This paper presents two novel ways to integrate PCM into an MW high-specific-power motor. The impacts of the PCM thermal-physical properties and the PCM integration methods are discussed and compared.