The magnetic network model of hybrid step motor is established according to the air gap late permeance method, and the expression of the harmonic back EMF is deduced.
利用气隙比磁导法建立了混合式步进电动机的磁网络模型，推导出谐波反电势的表达式。
The theoretical calculation result fits well with the experiment result, and the mathematical method adopted is feasible and valuable for the flux prediction of the air gap membrane distillation.
理论计算蒸馏通量与实验结果吻合较好，表明采用的数学模拟及计算方法是可行的，对预测空气隙膜蒸馏通量进行有价值的探讨。
The SLIM parameters have clear errors to the real values on the base of the RIM parameter measurement method because there are larger air gap and edge effect.
SLIM相对旋转异步电机（RIM）存在气隙大、边缘效应等，若采用RIM开路和短路试验方法，会给参数测量带来较大误差。
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