High-frequency transformer is the key device for large-scale renewable energy consumption and flexible in-terconnection of AC-DC hybrid distribution network.Current capacity of a single high frequency transformer cannot meet the requirements of large-scale consumption of renewable energy and construction of new power system;therefore,it is necessary to improve the capacity of high frequency transformer,which is related to core materials and magnetic compo-nents.In this paper,the development of core materials is reviewed.Based on the comparison of property parameters for soft ferrites and nanocrystalline alloys,nanocrystalline alloys show lower magnetostriction and higher permeability.The progresses in researching soft ferrite and nanocrystalline components are introduced,and the effects of component size and property on the capacity of high frequency transformer are discussed.In addition,the developments and demands of large-capacity high frequency transformer are described,and the challenges in wide-strip ultra-thin nanocrystalline mate-rials,preparation of large-capacity magnetic components,design and manufacturing of MVA-level high frequency transformers are summarized.
关键词
高频变压器/新能源消纳/纳米晶合金/软磁铁氧体/磁性元件
Key words
high frequency transformer/renewable energy consumption/nanocrystalline alloy/soft ferrite/magnetic component
维普
万方数据