【摘要】 为了应用有限元频域算法计算具有相对运动的电机时变电磁场,本文采用了有限元电机气隙单元算法,并对其作了改进,从而大大地减少了计算量,由于电机定、转子上的矢量磁位在频域内分布不同,本文提出了分区算法,解决了定子、转子相对运动时的频域计算问题,最后用—模拟发电机空载特性的计算与实验结果作了比较,对该算法进行了验证。更多还原

【Abstract】 The air-gap element and method of finite element in frequency domain are adopted to calculate the transient field of alternator.Improvement are made to reduce its evaluation capacity.To solve slow convergence raised from different field distribution of different frequencies in rotor and stator,separate evaluation method is suggested,by which the problems involving varying relative motion are also resolved.To examine the effectiveness of this method,results of no-load characteristic of a model altemator calculated and tested are presented of comparison.更多还原