摘要
永磁材料的磁性能随温度的升高而降低，因此温度的升高对永磁电机的影响较电励磁电机更为明显。介绍了一种温升对电机效率影响的计算思路与方法，并以一台水下使用的永磁直流电机为例，计算在20℃～80℃范围内效率的下降情况。
Because the magnetism of permanent magnet weakened by the rise of temperature, the influence on permanent magnet motor caused by the rise of temperature is more distinct than it on electro - magnetic motor. In this paper, a calculate theory and method is presented, a under-water permanent magnet DC motor is taken for instance, the descent of its efficiency from 20℃ to 80℃ is calculated.
出处
《微电机》
北大核心
2007年第3期58-60,共3页
Micromotors
关键词
永磁直流电机
温升
效率
计算
磁性能
PM DC motor
Rise of temperature
Efficiency
Calculate
