【作者】 刘静；

【导师】 史晓娟；

【作者基本信息】 西安科技大学 ， 机械制造及其自动化， 2013， 硕士

【摘要】 矿用电机车是煤矿的一种运输设备，它能牵引人员或物品，是主要的运输设备之一。牵引力很大，能代替人工劳动，并且只需少量的维护费用，对于煤矿来说，电机车具有重要的安全意义和经济意义。在矿用电机车的运输过程中，主要会发生撞车、追尾、掉道等事故，另一方面来说，讲究效率的煤矿也需要更加快速的工作，故机车的制动技术是其性能和安全问题的重难点之一。本论文介绍了国内外机车防滑控制系统的发展历史、研究现状及发展趋势，分析了防滑控制系统所依赖的粘着现象及粘着和滑移率之间的关系，阐述了防滑控制系统的原理、结构及其工作流程，重点从概念、基本原理、使用方法和特点解析了滑模变结构控制理论。本论文在对四分之一机车模型进行动力学分析的基础上，设计了矿用电机车基于滑模变结构控制的防滑控制系统。本论文采用Matlab/Simulink对矿用电机车进行了建模和仿真，其主要包括机车动力学模型、制动模型、车轮模型和控制算法模型。为了验证矿用电机车防滑制动系统的有效性，本论文对采用无防滑控制和防滑控制分别进行了建模仿真，并且在有防滑控制的系统中分别设计了逻辑门限值控制、PID控制、滑模变结构控制。仿真结果表明，采用防滑控制系统要比无防滑控制系统的滑移率更加靠近预期值即能更好的利用粘着。相比其他两种防滑控制算法，滑模变结构有更好的制动效果。更多还原

【Abstract】 Mining electric locomotive is a kind of transport equipment in the coal mine. It cantransport people or goods, and it is one of the most important transport equipment. Thetraction force of mining electric locomotive is very large. It can substitute people to work, andneed little maintenance costs. So, for coal mine, electric locomotive has important securityand economic significance. During the transportation of mining electric locomotive, majorityof accidents are crash, rear-end collision and going off the rails and so on. On the other side,stress efficiency in coal mine, it need work faster. So, the brake technology of locomotive isone of the difficult points in performance and security issues.In this dissertation, introduce the development history, the research status anddevelopment trend of domestic and overseas anti-skid control system of locomotive. Analysethe phenomenon of adhesion and the relationship between adhesion coefficient and slip ration.Explain the principle, structure and workflow of anti-slip control system. Analyse slidingmode variable structure control theory from its concept, basic principle, method of applicationand the characteristic. In this dissertation, work on dynamic analysis of the model of a quarterof the model of the locomotive, then design the anti-skid control system of the mining electriclocomotive based on sliding mode variable structure control system.Model and simulate the mining electric locomotive in Matlab/Simulink. It mainlyincludes locomotive dynamics model, brake model, wheel model and control algorithm model.In order to verify the validity of the anti-skid brake system of mining electric locomotive, themodel and simulate the anti-skid brake system and the free of anti-skid control system. Andthe anti-skid control system adopts the logic threshold control, PID control and sliding modevariable structure control. The simulation results show that the slip ration of using ant-skidcontrol system is more close to the expected value than no ant-skid control system. It meansant-skid control system can has better utilization of adhesion. The braking effect of slidingmode variable structure control system is better than that of other two control system.更多还原