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新型混合励磁无刷爪极发电机的磁场调节特性分析及试验研究

, PP. 115-121

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Abstract:

针对电励磁爪极发电机效率低、永磁爪极发电机磁场调节困难等问题,提出一种新型的混合励磁无刷爪极发电机。介绍该电机的结构特点和磁场调节原理,采用三维有限元法对电机的空载磁场分布及磁场调节能力进行了分析,设计并制造了试验样机。样机试验结果验证了有限元分析的正确性,并表明在结构参数相同的情况下,与电励磁爪极发电机相比,新型混合励磁无刷爪极发电机具有气隙磁通密度高、功率密度高、低速输出性能好、励磁损耗低等特点。

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