发卡式填充结构的直线式移相变压器设计及其磁场分析
Design and magnetic field analysis of linear phase-shifting transformer with hairpin filling structure
赵镜红 1薛婕 1严思念1
作者信息
- 1. 海军工程大学 电气工程学院,湖北 武汉 430033
- 折叠
摘要
在原有直线式移相变压器的基础上,借鉴直线电机相关理论,设计了一款发卡式填充结构的直线式移相变压器,有效地解决了原有结构绕线方式复杂、体积大、不易进行模块化串并联等问题,同时改善了模块化连接时,连接处半填充槽引起的一次侧激磁电流密度降低、气隙磁场畸变等问题.简要介绍了直线式移相变压器系统的工作原理;借鉴直线电机以及旋转电机设计方法,提出了半填充槽结构的直线式移相变压器的设计方法;同时采用了发卡式结构消除连接处半填充槽结构引起的一系列问题;最后通过有限元仿真进行验证对比.结果表明,对于所设计的发卡结构的直线式移相变压器,输出波形较好,气隙磁场畸变较小.
Abstract
Based on the original linear phase-shifting transformer,a linear phase-shifting transformer with a hairpin filling structure was designed with reference to the theory of linear motor,which effectively solved the problems of complicated winding method,large size and modular series-parallel connection.At the same time,it improved the problems of reduced primary side excitation current density and air gap magnetic field distortion caused by the semi filled slot at the connection during modular connection.Working principle of the linear phase-shifting transformer system was briefly introduced;the design method of linear phase-shifting transformer with half-filled slot structure was proposed with reference to the design method of linear motor and rotary motor;the hairpin structure was adopted to eliminate a series of problems caused by the half-filled slot structure at the connection;finally,the finite element simulation was used to verify the comparison.Results show that the designed linear phase-shifting transformer with a hairpin structure has a good output waveform and a small distortion of the air gap magnetic field.
关键词
直线式移相变压器/半填充槽/发卡式/磁场分析Key words
linear phase-shifting transformer/half-filled slot/hairpin type/magnetic field analysis引用本文复制引用
基金项目
国家自然科学基金资助项目(52007195)
出版年
2024
国家科技期刊平台
NSTL
万方数据