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.
出处
《机电工程》
CAS
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)
关键词
高速列车
混合励磁
轨道涡流制动
有限元分析
优化
high-speed train
hybrid excitation
eddy current brake
finite element method（FEM）
optimization
