摘要
安全制动系统是提升设备的最后一道安全保障措施,其对提升机运行的安全性和可靠性具有重要意义。针对目前恒减速制动系统存在的不足之处,提出了一种基于软硬件冗余的恒减速制动系统改进方案。为了提高系统安全性和可靠性,在回路中采用了冗余热备用方法,使备用回路能够实时同步地替换故障回路。空载实验结果表明:该方案是可行的;由于受非线性、时变和延迟等因素影响,制动初期速度误差略大于制动末期误差。
Constant-deceleration emergency braking system was considered as the ultimate securi- ty measure of a mine hoist. It was of great significance for safety and reliability of the mine hoists. Aiming at the shortcomings of the present constant-deceleration emergency braking system, a con- stant-deceleration emergency braking system was presented herein based on software and hardware re- dundant design. In this system, the faulty circuit was replaced synchronously in real-time by the spare one because the hot spare was adopted in the redundant design. The numerical and experimental re- sults under unloade show that the scheme is feasible. They also show that the speed tracking error at the early stages is higher than that at the last stages because of the nonlinearity, time-varying and de- lay.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2016年第4期475-478,共4页
China Mechanical Engineering
基金
山西省煤基重点科技攻关项目(MJ2014-11)
山西省国际科技合作项目(2015081017)
关键词
恒减速制动
软硬件冗余
速度控制
矿井提升机
constant-deceleration emergency brake software and hardware redundancy
speedcontrol
mine hoist
