论文部分内容阅读
高速列车的动能比普通列车的大几倍,而高速下轮轨间的粘着系数及闸瓦与动轮之间的摩擦系数都降低了一个数量级,故高速列车必须采用新的制动体系.电阻制动技术成熟,而再生制动能回收大部分动能,且制动特性较好,在直流牵引电动机和交流同步、异步电动机驱动中得到广泛的应用.盘形制动在高速车辆上是必不可少的.在非粘着的电气制动中,磁轨制动的磨耗大,适用于紧急制动,而轨道祸流制动在80~300km/h速度内,制动特性平坦,制动力大,成为高速列车的一种应用前景广泛的新技术.
The kinetic energy of high-speed train is several times higher than that of ordinary train, while the adhesion coefficient between wheels and rails at high speed and the friction coefficient between brake shoe and moving wheel have been reduced by one order of magnitude. Therefore, new brake system must be adopted for high-speed train. Resistive braking technology is mature, and regenerative braking can recover most of the kinetic energy, and the braking characteristics are better, which are widely used in DC traction motors and AC synchronous and asynchronous motor drives. Disc brake on high-speed vehicles is essential. In the non-stick electric brake, the track brake wear is large, suitable for emergency braking, and rail disaster braking in 80 ~ 300km / h speed, braking characteristics flat, large braking force, a high-speed train A wide range of new technologies.