摘  要：针对直流串励变桨电动机要求体积小、重量轻和过载能力强的特点，合理设计电机结构并较为准确地计算气隙磁场的大小尤其关键。该文采用有限元方法代替传统磁路方法计算，并利用实例进行分析直流串励电动机的气隙磁场。
关键词：直流串励变桨电动机；有限元

Abstract: In allied to the characteristics of DC series pitch-controlled motor that is small-bulk, light-weight and strong- overload ability, it is especially critical to design the motor construction reasonably, and calculate the magnitude of air-gap field relative exactly. This thesis calculated with finite element method instead of traditional magnetic circuit method, and exemplified the gap-air field of DC series pitch-controlled motor.
Key words:  DC series pitch-controlled motor; finite element method