基于NSGA-II算法的高频变压器多目标优化设计

Chunjie Wang, Wenkai Han, Peng Chen, Jinchuan Song, Songwei Yuan
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引用次数: 1

摘要

针对低压大电流电力电子变换器中高频变压器的优化设计,以高频变压器的体积和效率为优化目标,分析了高频变压器磁芯和绕组损耗的计算方法。在此基础上,建立了以饱和磁感应强度和电流密度为优化变量的二维优化模型。遗传算法在求解非线性多目标优化问题方面具有一定的优势。本文采用NSGA-II算法对铁氧体、非晶合金和纳米晶铁芯材料组成的高频变压器进行了优化设计。通过对比仿真结果的优化参数,验证了纳米晶材料在高频变压器设计中的优越性,由于其高饱和磁感应强度和高磁导率,纳米晶材料在高频大功率应用中比铁氧体和非晶合金材料具有更好的综合性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Multiobjective optimization design of high frequency transformer based on NSGA-II algorithm
Aiming at the optimization design of high frequency transformer in low-voltage high-current power electronic converter, the volume and efficiency of high frequency transformer are taken as the optimization objectives, the calculation methods of magnetic core and winding loss of high frequency transformer are analyzed. On this basis, a two dimensional optimization model is established with saturated magnetic induction intensity and current density as optimization variables. Genetic algorithm has certain advantages in solving nonlinear multiobjective optimization problems. In this paper, NSGA-II algorithm is used to optimize the design of high frequency transformers with ferrite, amorphous alloy and nanocrystalline core materials. By comparing the optimization parameters of the simulation results, the superiority of nanocrystalline materials in the design of high frequency transformer is verified, due to its high saturation magnetic induction strength and high permeability, nanocrystalline materials have better comprehensive performance than ferrite and amorphous alloy materials in high-frequency and high power applications.
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