摘要
有轨电车作为地面交通工具,需要频繁调速,减速时只依靠机械制动会导致机械装置出现过量磨耗的问题,因此提出在有轨电车上加装永磁减速装置的构想。文章提出了一种在不改变有轨电车原有制动控制系统及其关联机构条件下的永磁减速装置,通过促动机构改变永磁体磁极位置获得不同的空间磁场分布,实现在转盘上取得不同的感应涡流和对应的制动力矩的目的,实现制动和缓解的转化。在有轨电车有限空间条件下,推导计算减速装置的结构尺寸和减速目标的制动力矩等,建立涡流制动力矩数学模型,分析结构参数对制动力矩的影响。研制了试验样机,并对性能参数进行验证,符合设计要求。
As a ground transportation,the tram needs frequent speed regulation.Relying on mechanical braking when decelerating will cause excessive wear of the mechanical devices.Therefore,it is proposed to install a permanent magnet reduction device on the tram.In this paper,a permanent magnet deceleration device was designed without changing the original brake control system of the tram and its associated mechanism.The position of the magnetic pole of the permanent magnet was changed by the actuating mechanism to obtain different spatial magnetic fields,to achieve the purpose of obtaining different induced eddy currents and corresponding braking torques on the turntable,which achieved the conversion of braking and mitigation.Under the limited space of the tram,the structural size of the deceleration device and the braking torque of the deceleration target were derived.The mathematical model of the eddy current braking torque was established,and the influence of structural parameters on the braking torque was analyzed.The prototype was developed and the performance parameters were verified to meet the design requirements.
作者
应之丁
李晨欣
李艺
YING Zhiding;LI Chenxin;LI Yi(Railway and Urban Rail Transit Research Institute,Tongji University,Shanghai 201804,China)
出处
《机车电传动》
北大核心
2022年第4期33-36,共4页
Electric Drive for Locomotives
基金
国家重点研发计划项目(2017YFB1201302-12B)
上海市自然科学基金项目(17ZR1432000)
“十三五”国家重点研发计划项目(2016YFB1200602)。
关键词
列车制动
有轨电车
永磁减速装置
磁场分析
train braking
tram
permanent magnet deceleration device
magnetic analysis
