基于高频材料特性分析的旋转式松耦合变压器结构设计  

Design of a Rotary Loosely-Coupled Transformer Structure Based on Analysis of High-Frequency Material Characteristics

作　　者：冯超 张艳丽[1] 任自艳[1] 张殿海[1] 綦艳丽[1] Feng Chao;Zhang Yanli;Ren Ziyan;Zhang Dianhai;Qi Yanli(Ministry of Education Key Laboratory of Special Motors and High-Voltage Electrical ApparatusShenyang University of Technology,Shenyang 110870 China)

机构地区：[1]沈阳工业大学教育部特种电机与高压电器重点实验室,沈阳110870

出　　处：《电工技术学报》2022年第S01期22-29,共8页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金资助项目(51777128)。

摘　　要：为提高旋转变压器耦合性能、减小铁心尺寸,该文提出一种以纳米晶带材为铁心材料的新型旋转式松耦合变压器,用来为旋转设备供电。基于实验室现有的高频磁特性测量系统,测量并分析了正弦波和方波激励下软磁铁氧体与纳米晶带材的磁特性。尝试采用纳米晶带材替代块状铁氧体做旋转式松耦合变压器铁心材料,由于铁心材料形状的改变,传统罐式旋转式松耦合变压器结构不再适用于纳米晶铁心,该文提出两种新型结构的旋转式松耦合变压器。基于磁场数值仿真平台,分析了这两种旋转式松耦合变压器在实际工况下的瞬态特性,计算了耦合系数和铁心损耗,讨论了上述旋转式松耦合变压器铁心结构及相应的绕组结构的可行性,为旋转式松耦合变压器的性能提升提供一个新的思路。In order to improve the coupling performance of rotary transformer and reduce the size of the core,this paper proposes a new type of rotary loosely-coupled transformer using nanocrystalline strip as the core material,which is used to supply power for rotating equipment.Based on the measurement system of high-frequency magnetic property in the laboratory,the magnetic properties of soft magnetic ferrite and nanocrystalline strip under the excitations of sine and square waves were measured and analyzed.Nanocrystalline strip was employed to replace the bulk soft magnetic ferrite as a rotary loosely-coupled transformer core material.Due to the change of core material shape,the traditional pot core structure of rotary loosely-coupled transformer is no longer suitable for nanocrystalline core,and then in this paper,two new structures of rotary loosely-coupled transformer were proposed.Based on magnetic field numerical simulation platform,this paper analyzed the transient characteristics of these two rotary loosely coupled-transformer under actual conditions,calculated the coupling factor and core loss,and discussed the feasibility of the above-mentioned rotary loosely-coupled transformer core structure and the corresponding winding structure,which provides a new idea for the performance improvement of the rotary loosely-coupled transformer.

关 键 词：旋转式松耦合变压器 高频材料 铁心结构 绕组结构 

分 类 号：TM4[电气工程—电器]