单相永磁力矩马达的力矩转角特性  

Torque-angle Characteristics of Permanent Magnet Torque Motor with Single-phase Excitation

作　　者：孟彬[1] 林琼[1] Meng Bin, Lin Qiong(Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, Chin)

机构地区：[1]浙江工业大学特种装备制造与先进加工技术教育部重点实验室,杭州310014

出　　处：《机械科学与技术》2018年第4期532-536,共5页Mechanical Science and Technology for Aerospace Engineering

基　　金：浙江省自然科学基金项目(LY14E050007);浙江省科技厅公益性项目(2016C31G2020039)资助

摘　　要：现有的2D阀用电-机械转换器从磁路原理和结构而言均较为复杂,本文设计了一种单相励磁的轴向不对称磁路,并根据该磁路提出了一种新型的单相永磁力矩马达。首先通过磁路解析法推导了马达的力矩转角特性方程,随后建立有限元模型分析了该马达的磁场分布和力矩转角特性。基于数值模拟结果加工了样机,建立了测试台架对其作了力矩转角特性的测试。测试结果与模拟结果较为符合,表明该马达的电磁力矩较大,其力矩-转角特性曲线呈上升的线性关系,力矩幅值随励磁电流而增加,适合作为2D三通阀及其他类似元件的电-机械转换器。In order to solve the problem that conventional electro-mechanical converter of 2D valve had deficiency of complicated magnetic circuit and structure,a single-phase excited magnetic circuit with axial asymmetrical topology is proposed,and based on that a novel permanent magnet torque motor is developed. Firstly the equation of torque-angle characteristics is derived via analytical method,then a finite element analysis model is built to describe magnetic field distribution,and therefore numerical results of torque-angle characteristics are obtained.Prototype motor is designed and fabricated based on numerical simulation. The experimental rig is built up to study torque-angle characteristics. The experimental results agreed well with simulations,which indicates prototype motor has large magnetic torque and its torque-angle characteristic is close to linear relationship whose amplitude increases with excited current. The proposed motor is appropriate to be electro-mechanical converter of 2D three-way valve and other similar control components.

关 键 词：力矩马达 磁路 电-机械转换器 2D阀 

分 类 号：TH137.5[机械工程—机械制造及自动化]