动车组再生制动的研究分析 车辆工程管理专业VIP专享

摘要带动力的动车和不带动力的动车通过固定编组共同组成了动车组，动车组具有舒适安全等优点，因此在全国范围内甚至世界许多国家中得到了普遍的使用和推广。再生制动与传统的空气制动相比具有不可比拟的优越性，是目前所使用的制动方式中唯一可以向电网回馈能量的一种制动方式，它较传统的空气制动而言，相关部件磨损程度较小，且在制动的同时还能节约能源,在资源日益匮乏的今天有着重大的意义。在再生制动的过程中，是将原本为电动机的异步牵引电机，变为了发电机，产生反向电流和反向转矩，从而达到制动的目的。而因再生制动产生的三相交流电经过中间的逆变器和脉冲整流，先变为单相直流电，再变为单相交流电，最后通过牵引变压器反馈回电网。本文主要介绍了制动方式的分类，复合制动系统以及再生制动的工作原理，并深入研究了交流牵引传动系统。关键词：再生制动；动车组；交流牵引传动系统AbstractA emu is a fixed train consisting of a powered train and an unpowered trailer. Due to its safety, comfort and other characteristics, the emu has been widely used in countries and regions around the world.Regenerative braking is the only braking method that can feed back energy to the power grid. Compared with the traditional air braking, the wear degree of relevant parts is small, and the braking can save energy at the same time, which is of great significance in today's increasingly scarce resources.In the process of regenerative braking, the asynchronous traction motor originally used as a motor is turned into a generator to generate reverse current and reverse torque, so as to achieve the purpose of braking. The three-phase alternating current generated by regenerative braking passes through the middle inverter and pulse rectification, and first becomes single-phase direct current, then single-phase alternating current, and finally feeds back to the power grid through traction transformer. This paper mainly introduces the classification of braking mode, the working ...