矿井提升机机械制动控制技术研究与应用

发布时间：2018-04-10 23:07

本文选题：液压盘形制动控制 + 恒减速制动　；参考：《中国矿业大学》2017年硕士论文

【摘要】：矿井提升机机械制动作为提升机安全运行的最后一道保障,对其的研究具有重要意义。论文以中煤第五建设有限公司立井施工提升机智能化电控系统研究项目为平台,在分析了当前矿井提升机机械制动控制技术国内外研究现状的基础上,针对国内现有技术存在的不足,对矿井提升机液压盘形制动控制系统进行了优化改进。首先,论文综述了矿井提升机机械制动控制系统的结构组成及工作原理,分析系统存在的问题,对系统提出改进方案,根据改进方案设计了系统二级制动回路、恒减速制动回路及液压盘形制动控制系统总回路,对总回路的重要元件及参数等进行了选型计算,对总回路的电控信号部分进行了硬件电路设计。其次,对液压盘形制动总系统的驱动机构和执行机构分别进行研究,对驱动机构部分即液压系统,分析了其基于恒减速控制思想的系统回路,经理论分析计算,建立恒减速制动控制系统的数学模型,通过对模型的仿真得出其性能特性;对执行机构部分即盘形制动器,建立盘形制动器数学模型及对应的仿真模型,通过仿真分析盘形制动器工作状态。最后,对提升机液压盘形制动控制系统作为整体进行研究,采用AMESim软件对系统进行建模并仿真,通过仿真分析系统性能,针对系统出现的动态响应较差及稳态误差较大等情况,对系统提出基于混合遗传算法的PID控制器优化方法,经优化系统整体性能得到显著提高。
[Abstract]:As the last guarantee for the safe operation of mine hoist, the study of mechanical brake of mine hoist is of great significance.Based on the research project of intelligent electronic control system of shaft hoist in Zhongshan coal fifth construction co., Ltd., this paper analyzes the current research status of mechanical brake control technology of mine hoist at home and abroadThe hydraulic disc brake control system of mine hoist is optimized and improved.Firstly, the paper summarizes the structure and working principle of the mechanical braking control system of mine hoist, analyzes the problems existing in the system, and puts forward the improvement scheme. According to the improved scheme, the paper designs the two-stage braking loop of the system.The main circuit of the constant deceleration braking circuit and the hydraulic disc brake control system is selected and calculated, and the hardware circuit of the electronic control signal part of the main circuit is designed.Secondly, the driving mechanism and actuating mechanism of the hydraulic disc brake master system are studied, and the system loop based on the constant deceleration control thought is analyzed for the driving mechanism part, that is, the hydraulic system, which is calculated by theoretical analysis.The mathematical model of the constant deceleration brake control system is established, and its performance characteristics are obtained by simulation of the model, and the mathematical model and the corresponding simulation model of the disk brake are established for the actuator part, that is, the disc brake.The working state of disc brake is analyzed by simulation.Finally, the hydraulic disc brake control system of hoist is studied as a whole. The system is modeled and simulated by AMESim software, and the system performance is analyzed by simulation, aiming at the poor dynamic response and large steady-state error of the system.The optimization method of PID controller based on hybrid genetic algorithm is proposed, and the overall performance of the system is improved significantly.
【学位授予单位】：中国矿业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TD633;TP273

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