煤矿深井大吨位提升容器高速安全运行电液智能调控方法

提升容器是煤矿井下输送煤炭和人员的关键装备。本项目针对煤矿深井大吨位提升容器高速运行易发生失控、断绳等重大恶性事故，开展大吨位提升容器高速安全运行电液智能调控方法研究，解决煤矿深井提升容器高速运行时钢丝绳末端张力时变延时特性以及失控工况下张力主动容错控制的关键科学问题。阐明大吨位提升容器高速运行时的动力学特性与多钢丝绳、电液制动器群及多液压缸驱动浮动天轮运行状态的动态耦合关系，掌握煤矿深井提升容器高速运行时多钢丝绳末端张力实时传输方法，揭示钢丝绳张力传输时变延时特性，研究适合于钢丝绳动态特性的液压缸主动调节张力协调控制方法，提出失控工况下多钢丝绳张力主动容错控制策略，解决大吨位提升容器高速运行失控、断绳事故下的安全制动问题，开展煤矿深井提升容器的钢丝绳张力实时监测、协调控制，失控工况下的容错控制及断绳事故下紧急制动的试验研究。研究成果对提高煤矿深井大吨位提升容器高速运行安全性具有重要意义。

The hoisting conveyance is a key equipment for coal and personnel transportation in coal mine wells. This project, which is around the malignant accidents due to the uncontrolled high-speed operation of the large tonnage hoisting conveyance or broken of wire ropes, intends to carry out research on electro-hydraulic intelligent control methods for safety operation of the large tonnage hoisting conveyance with high-speed, and solve fundamental scientific problems on terminal tension time-varying delay characteristics of wire ropes and active fault-tolerant control under uncontrolled working condition. After the dynamic characteristics of the hoisting conveyance with high-speed and the operation state dynamic coupling relation of wire ropes, electro-hydraulic brakes group, and hydraulic driving movable headgear sheaves are illuminated, this project will master a real-time transmission method of terminal tensions of wire ropes utilized to hoist the conveyance with a strong electro-magnetic interference in deep wells, and will also reveal time-varying delay characteristics of tension transmission under high-speed operation in deep wells. If this project can be developed well, it is helpful to study tension coordination control methods of wire ropes active regulated by hydraulic cylinders, propose a tension active fault-tolerant control strategy of wire ropes under uncontrolled working condition, solve stationarity problem of the large tonnage hoisting conveyance with emergency braking during high-speed operation, and develop the real-time condition monitoring, coordination control, fault-tolerant control under uncontrolled working condition and emergency braking under wire rope broken accident for the large tonnage hoisting conveyance in deep mine wells . The research achievements of this project have important significance for improving safety of deep mine wells.