高速列车混合励磁涡流制动系统的设计与分析  

Design and analysis of hybrid excitation rail eddy current brake system of high-speed train

作　　者：严国斌[1] 方攸同[1] 张帆[1] 

机构地区：[1]浙江大学电气工程学院,浙江杭州310027

出　　处：《机电工程》2010年第8期19-22,共4页Journal of Mechanical & Electrical Engineering

基　　金：国家自然科学基金资助项目(50877070);浙江省自然科学基金资助项目(R1080069)

摘　　要：相比于单独磁源励磁的涡流制动方式,混合励磁涡流制动有着可控且节能、适用于多种制动模式等优势。针对高速列车制动时制动功率消耗大的问题,为满足制动安全可靠的需要,根据电磁场原理提出了一种混合励磁轨道涡流制动系统,阐明了机械系统进行制动器的提放动作、电磁系统进行涡流制动的工作过程。通过对电磁系统进行有限元分析(FEM),对速度、气隙、励磁电流等因素对制动力、吸引力的影响进行了讨论,并在此基础上对电磁系统的结构进行了优化。优化结果表明制动系统达到了更好的性能。Compared to eddy current braking pattern with single magnetic source exciting,hybrid excitation rail eddy current brakes has advantages,that is,controllable,energy saving and various-operating-modes.Aiming at large braking power consumption of high-speed train,a hybrid excitation rail eddy current brake system,which is based on the principle of electromagnetic field,was proposed to fulfill the needs of safety and reliability.Then the working processes of mechanical lifting system and electromagnetic system were demonstrated.With electromagnetic system analyzed using finite element method（FEM）,the factors such as speed,air gap,exciting current,which have influences on braking force and attractive force,were discussed.On the basis of that,the optimization of the electromagnetic system was done.The results indicate that the system can work better.

关 键 词：高速列车 混合励磁 轨道涡流制动 有限元分析 优化 

分 类 号：U463.5[机械工程—车辆工程] TM359.4[交通运输工程—载运工具运用工程]