齿槽形状对永磁风力发电机温度场分布的影响

发布时间：2019-05-14 08:07

【摘要】：以影响发电机温度场分布的齿槽结构为研究对象,基于变工况下的实测值,采取有限元数值模拟法,开展功率为400 W的不同齿槽结构的永磁风力发电机温度场研究。首先,按照测试方案并运用FLIR红外热成像仪采集梨形槽、扇形槽、斜肩圆底槽3种结构发电机在不同工况下的动态温度场,将测试温度值整理后,通过meshgrid(x,y)函数和surf(x,y,z)函数相结合,分别绘制出不同槽型的定子沿径向随负载值大小和位置变化的三维曲面;其次,以所测温度值为计算载荷和边界条件,模拟出不同齿槽结构的温度场;最后,对比分析测试和计算温度场的分布规律,以二者一致且有效的规律为依据,找出产热低、散热强的最优齿槽结构。
[Abstract]:Taking the slot structure which affects the distribution of generator temperature field as the research object, based on the measured value under variable working conditions, the finite element numerical simulation method is adopted to study the temperature field of permanent magnet wind turbine with different slot structure with power of 400 W. First of all, according to the test scheme and using FLIR infrared thermal imager to collect the dynamic temperature field of pear groove, sector slot and oblique shoulder circular bottom slot generator under different working conditions, the test temperature value is sorted out by meshgrid (x,. Y) function and surf (x, y, z) function are combined to draw the three-dimensional surfaces of different slot stator along the radial direction with the load value and position. Secondly, taking the measured temperature value as the calculation load and boundary condition, the temperature field of different slot structures is simulated. Finally, the distribution law of temperature field is compared and analyzed, and the optimal slot structure with low heat production and strong heat dissipation is found on the basis of the consistent and effective law of the two.
【作者单位】：内蒙古工业大学能源与动力工程学院;风能太阳能利用技术省部共建重点实验室;
【基金】：内蒙古工业大学科学研究资助项目(X201408) 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)
【分类号】：TM315

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