Taking PM type(the permanent magnet model) SLPMU -025A motor as an example , this paper makes analytical calculation of its efficiency characteristics by the means of equivalent circuit.
以日本神钢电机公司制造的PM型（永久磁铁型）SLPMU-025A为样机，利用等效电路法对其效率特性进行了解析计算。
When designed, the high-speed generator with a permanent magnet(PM) rotor is preferred because of its simple structure, without excitation high energy density of the PM material.
永磁转子式高速发电机由于具有结构简单、不需励磁、效率高和能量密度大等优点成为高速发电机设计时的首选。
Accurate calculation of winding inductance parameter is important to the dynamic performance analysis of PM (permanent magnet) brushless DC machine.
绕组电感参数的准确计算对于永磁无刷直流电机的动态性能分析具有重要的意义。
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