基于改进萤火虫算法的永磁同步电机多模态优化设计
Multi-modal optimal design of permanent magnet synchronous motor based on improved firefly algorithm
夏斌 1王超 1孙鑫 2宋春丽3
作者信息
- 1. 沈阳工业大学 电气工程学院,辽宁 沈阳 110870
- 2. 特变电工沈阳变压器集团有限公司 变压器事业部,辽宁 沈阳 110027
- 3. 鞍山市信息工程学校,辽宁 鞍山 114001
- 折叠
摘要
永磁同步电机的结构参数选择往往是多模态、非线性的优化问题,同时其结构优化设计又存在计算分析时间过长、计算效率过低、收敛慢等问题.文中针对此类问题提出了一种基于改进萤火虫算法的新型多模态优化算法.改进萤火虫算法主要引用了等值线概念并通过克里金(Krig-ing)代理模型自适应确定子计算区域,从而获得多个全局最优解和局部解,并且引入单纯形法和改进停止条件以提高算法效率.此外,研究了分层余一法用于检验代理模型精度.最后,将其应用到永磁同步电机的结构优化中,使齿槽转矩成功降低了38.33%.
Abstract
The structural parameter selection of permanent magnet synchronous motor(PMSM)is often a multi-modal and nonlinear optimization problem.At the same time,the structural optimization design of PMSM has some problems,such as long computational analysis time,low computational efficiency and slow convergence.In order to solve these problems,a novel multimodal optimization algorithm based on improved firefly algorithm was proposed.In the improved firefly algorithm,the concept of contour lines was introduced and the sub-computation region was determined adaptively through Kriging surrogate mod-el,so as to obtain multiple global optimal solutions and local solutions,and simplex method was intro-duced and stop condition was improved to improve efficiency of the algorithm.In addition,a stratified leave-one-out method was studied to verify accuracy of the surrogate model.Finally,it is applied to the structure optimization of PMSM,and the cogging torque is successfully reduced by 38.33%.
关键词
永磁同步电机/多模态优化/萤火虫算法/克里金代理模型/等值线/留一法Key words
PMSM/multi-modal optimization/firefly algorithm/Kriging surrogate model/contour lines/leave-one-out method引用本文复制引用
基金项目
辽宁省教育厅项目(LJKQZ2021051)
出版年
2024
NETL
NSTL
维普
万方数据