基于热电磁耦合的永磁风力发电机涡流损耗分析  

ANALYSIS OF EDDY CURRENT LOSSES IN PERMANENT MAGNET WIND GENERATOR BASED ON ELECTROMAGNETIC-THERMAL COUPLING METHOD

作　　者：温彩凤[1,2] 汪建文[1,2] 孙素丽[1] 

机构地区：[1]内蒙古工业大学能源与动力工程学院,呼和浩特010051 [2]风能太阳能利用技术省部共建教育部重点实验室,呼和浩特010051

出　　处：《太阳能学报》2015年第9期2278-2284,共7页Acta Energiae Solaris Sinica

基　　金：内蒙古工业大学风能太阳能教育部重点实验室资助项目(NO201410);国家自然科学基金(50976047)

摘　　要：根据电磁学和传热学理论,以一台400 W永磁风力发电机为例,基于热电磁双向耦合建立轴向通风的各部件二维电磁场数学模型和热传导方程。采取ANSYS多场求解器MFS单代码分析方法,二场双向迭代计算不同槽型磁通密度、磁场强度矢量及热通量分布。通过电机温升试验与计算结果对比分析,证实电磁场与温度场耦合分析方法研究永磁风力发电机动态温升问题的可行性。The two-dimensional mathematical model of the electromagnetic field and the heat conduction equation for axial ventilation parts according to the theory of electromagnetism and heat transfer was established. Taking ANSYS multi- field solver MFS single code analysis methods calculates various groove the magnetic flux density, magnetic field intensity vector and heat flux distribution by bidirectional iteration. Through comparative analysis of the generator temperature experiments and calculation results, the feasibility of electromagnetic and temperature fields coupling analysis method is confirmed for researching permanent magnet wind generator dynamic temperature problems.

关 键 词：永磁风力发电机 有限元 涡流损耗 磁密 热功率 双向耦合 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]