基于响应曲面法的单边盘式发电机优化设计

为了拓展单边永磁盘式发电机的应用范围,对该类发电机进行优化设计。通过分析不同永磁体厚度、气隙、形状对发电机的影响,对比有无铁心单边结构发电机的性能,选择适合汽车工况的发电机为研究对象。通过响应曲面法,建立以永磁体厚度、形状为优化变量,电压波形畸变率、效率为优化目标的多目标优化方程。结果表明,不同永磁体厚度与形状对发电机性能具有重要影响,通过响应曲面优化后的单边永磁发电机效率提高了0.83%,THD降低了16.7%。因此,所提优化方法对单边盘式发电机永磁体结构的设计具有一定的指导意义。

Optimization Design of Single Sided Disc Generator Based on Response Surface Method

In order to extend the application range of single-sided permanent magnet disk generator, the optimization design of such generator is investigated. Firstly, the generator suitable for vehicle operating conditions is selected as the research object after analyzing the influence of permanent magnet thickness, air gap and shape on the generator, and comparing the performance of the generator with or without iron core. Then, a multi-objective optimization equation is established with the thickness and shape of permanent magnet as optimization variables, and the voltage waveform distortion rate and efficiency as optimization objectives by response surface method. The results show that thickness and shape of permanent magnet have significant influence on the generator performance. The efficiency of single-sided permanent magnet generator after response surface optimization is improved by 0.83%, and the total harmonic distortion (THD) is reduced by 16.7%. The optimization method has a certain reference value in the design of permanent magnet structure of single-sided disc generator.