一种36 kVA高频变压器的建模仿真与优化

Modeling and Optimization of a 36 kVA High-Frequency Transformer

摘要: 在直流输电、光伏发电、电力机车牵引等领域中，电力电子技术都是重要的支撑，而高频变压器是电力电子设备中的关键部分。近年来随着纳米晶体材料应用于高频变压器磁芯，变压器的性能取得了长足的提升。但是功率比较大的高频变压器在减小寄生参数、提升功率密度等方面的设计上仍存在比较多的难题。本文利用纳米晶体作为磁芯，基于一台36 kVA的10 kHz变压器对其进行建模分析研究，并对于总损耗和寄生参数进行了算法优化。最后应用计算机仿真检验了优化的可行性和有效性，对比得出最优的设计参数。

Abstract: In the fields of DC transmission, photovoltaic power generation and electric locomotive traction, the power electronic technology provides a critical support. Furthermore, the high-frequency trans-former is a key component of the power electronic equipment. In recent years, with the application of nanocrystalline materials in manufacture of high-frequency transformers, the performance of transformers has been greatly improved. However, there are still many difficulties in the design of high-frequency transformers with relatively large power in terms of reducing parasitic parameters and increasing power density. This research uses the nanocrystalline as the magnetic core, modeling a 36 kVA transformer with10 kHz and making numerical optimization of total loss and parasitic parameters. Finally, computer simulation technology was used to verify the feasibility and validity of the optimization, and the optimal design parameters were obtained by the comparison.