轴向磁通非晶合金永磁电机空载铁耗的解析计算方法

发布时间：2018-03-22 12:19

本文选题：非晶合金　切入点：空载铁耗　出处：《中国电机工程学报》2017年03期 　论文类型：期刊论文

【摘要】：非晶合金材料具有出色的低损耗特性,利用非晶合金替代硅钢片制作轴向磁通永磁电机铁心可有效降低电机铁心损耗,但替代后的非晶合金电机的损耗结构也将发生改变。在电机初始设计阶段,快速准确计算出电机的空载铁耗是轴向磁通非晶合金电机设计及优化的关键。该文针对3D时步有限元计算耗时长的问题,改进现有多环等效模型计算方法,推导了气隙磁密、定子铁心损耗和永磁体涡流损耗的解析解,构建了空载铁耗的解析计算模型。利用3D有限元对解析模型计算值进行了验证,结果显示解析计算模型计算误差仅为9.42%。利用该解析模型分析槽口和气隙长度对空载铁耗的影响,结果显示采用减小槽口宽度降低空载铁耗的效果更为明显。
[Abstract]:Amorphous alloy materials have excellent low loss characteristics. Using amorphous alloy instead of silicon steel to make axial flux permanent magnet motor core can effectively reduce the loss of motor core. However, the loss structure of the alternative amorphous alloy motor will also change. The fast and accurate calculation of the no-load iron consumption of the motor is the key to the design and optimization of the axial flux amorphous alloy motor. Aiming at the problem of long time consuming in 3D time-step finite element calculation, the existing multi-ring equivalent model calculation method is improved, and the air-gap magnetic density is deduced. Based on the analytical solution of stator core loss and eddy current loss of permanent magnet, an analytical calculation model of no-load iron loss is constructed. The calculated value of the model is verified by 3D finite element method. The results show that the calculation error of analytical calculation model is only 9.42. The effect of slot and air gap length on no-load iron consumption is analyzed by using the analytical model. The results show that the effect of reducing slot width on no-load iron consumption is more obvious.
【作者单位】：沈阳工业大学国家稀土永磁电机工程技术研究中心;悉尼科技大学电气机械和机电系统学院;
【基金】：国家科技支撑计划项目(2013BAE08B00) 国家自然科学基金项目(51307111) 辽宁省教育厅科学技术研究项目(L2013049)~~
【分类号】：TM351

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