PWM逆变器供电引起的轴向磁通非晶电机谐波损耗的解析计算

发布时间：2018-02-15 20:01

本文关键词： 非晶合金轴向磁通永磁电机 PWM逆变器谐波损耗解析方法　出处：《电工技术学报》2017年16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,适于用作高频电机的铁心,但PWM逆变器供电会导致高频电机谐波损耗严重增加。在电机初始设计阶段,快速准确计算出谐波损耗是轴向磁通非晶合金永磁电机设计及优化的关键。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的计算方法,推导了考虑PWM逆变器供电高次谐波电流影响的气隙磁通密度解析计算方法,并在此基础上推导了定子铁心损耗及考虑涡流反作用影响的转子涡流损耗的解析计算方法。将谐波损耗的解析计算值与样机实验值以及3D有限元计算值进行对比,结果显示谐波损耗的平均计算误差仅为9.69%,解析模型具有较高的计算精度。
[Abstract]:The amorphous alloy material has excellent properties of low loss, suitable for use as the core of high frequency motor, but the power supply will lead to high frequency PWM inverter motor harmonic losses in the motor. A serious increase in the initial design stage, quickly and accurately calculate the harmonic loss is the key non axial flux permanent magnet motor design and optimization of amorphous alloys. For the 3D time step finite element time consuming problem, an improved calculation method of existing polycyclic equivalent model, calculation method considering the influence of PWM inverter harmonic air gap flux density analysis, and then deduces the calculation method of stator iron loss and rotor eddy current loss analysis considering the influence of eddy current reaction. The analytical calculation of harmonic loss the values were compared with the experimental values and the 3D values calculated by the finite element calculation, the results show that the average error of harmonic loss is only 9.69%, the analytical model has Higher calculation precision.

【作者单位】：国家稀土永磁电机工程技术研究中心(沈阳工业大学);悉尼科技大学电气机械和机电系统学院;
【基金】：国家重点研发计划(2016YFB0300500) 国家科技支撑计划(2013BAE08B00) 国家自然科学基金(51307111) 辽宁省教育厅科学技术研究项目(L2013049)资助
【分类号】：TM351

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