【作者】 谷杨心；

【导师】 杨中平；

【作者基本信息】 北京交通大学 ， 电力电子与电力传动， 2010， 硕士

【摘要】 目前,动力分散方式是世界高速列车动力配置方式的发展趋势,动力分散与动力集中相比,在速度提升、节能环保等方面具有明显优势,我国高速列车也采用了该方式。CRH2A动车组是由多辆动车共同提供牵引＼制动力,当某节动车发生滑行时,只在制动单元内进行制动力分配,将发生滑行的动车降低的制动力分配给制动单元内的其他车厢,这可能导致制动单元内的拖车承担部分制动力,而其他制动单元的动车再生制动力并没有得到充分利用。制动力分配的发展趋势是在整车范围内进行制动力合理分配,现在国外已有多种车型采用这种分配方式,但是具体的分配方法并未公开。本文正是对整车范围内制动力分配方法进行探讨,并满足制动力分配后各车运行状态良好的条件。本文采用CRH2A动车组实际参数进行滑行再粘着控制仿真,发生滑行后,各车制动力的分配比例设置是本研究的重点及难点。本文采用的方法是根据各车蠕滑速度判断车辆轨道条件,按各车轨道条件分配制动力。在此基本思路下,本文提出了四种制动力分配方法,并在各种轮轨条件下对四种分配方法进行比较,最后根据基本分配方法组合成一个方法,它适用于各种运行条件。本文搭建了MATLAB仿真平台,仿真验证了整车制动力分配策略的可行性。更多还原

【Abstract】 At present, separate power is the development trend of high-speed train power allocation. Compare with Centralized Power, it has obvious advantages in speed increasing, energy saving and environmental protection. So it is used in our high-speed trains. Power cars provide traction\braking force in CRH2A EMU. If a power car slides, the brake force distribute to other cars in the braking unit, which may lead to trailer car providing the brake force, while the regeneration braking force of other power car is not fully utilized. The trend of braking force distribution is reasonable distribution in the whole train. There are many trains using this distribution, but the specific method does not making public.This paper discusses the distribution method of braking force in the whole train and then ensures every car working well.This paper establishes anti-slip re-adhesion control simulation, which uses actual parameters of CRH2A EMU. How to distribute the vehicle braking force after sliding is the keystone and difficulty of this study. The method is based on the vehicle creep speed to estimating the vehicle track conditions, and then the brake force is distributed according to the vehicle track conditions. This paper proposes four braking force distribution methods under the basic thread and compares them in various kinds of vehicle track conditions. Finally, the basic allocation methods are combined into a method which can be applied to various track conditions. The model is built based on MATLAB to validate the feasibility of control strategy of brake force distribute in this paper.更多还原