Determining the stator slot design parameters of the alternator has a great importance to provide the desired magnetic flux distribution for a permanent magnet generator (PMG). The objective of this article was to investigate the optimum design parameters of PMG slot design for small-scale low-speed wind turbine generator by using the design of experiment techniques. The Maxwell simulations have been used for numerical experiments on geometric design variables of stator slots (Bs0, Bs1, Bs2, and Hs2) in order to evaluate the coefficients of second-order models for the responses. Efficiency, stator teeth flux density, stator yoke flux density, and air-gap flux density are determined as the responses that have to be optimized. A gradient search was used for optimization. The solution of this design problem shows how the experimental design method can be combined with the numerical simulation and how this approach is well adapted to the optimization process. As a result, the efficiency of the PMG is improved under the desired magnetic flux conditions.

中文翻译：

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利用响应面法优化永磁发电机磁通分布的设计


确定交流发电机的定子槽设计参数对于为永磁发电机 (PMG) 提供所需的磁通量分布非常重要。本文的目的是通过实验设计技术研究小型低速风力发电机永磁发电机槽口设计的最佳设计参数。麦克斯韦模拟已用于定子槽几何设计变量（Bs0、Bs1、Bs2 和 Hs2）的数值实验，以评估二阶模型的响应系数。效率、定子齿磁通密度、定子轭磁通密度和气隙磁通密度被确定为必须优化的响应。使用梯度搜索进行优化。该设计问题的解决展示了实验设计方法如何与数值模拟相结合以及该方法如何很好地适应优化过程。因此，在所需的磁通量条件下，PMG 的效率得到提高。