矿井提升机节能运行的行程控制方法

针对目前矿井提升机采用S形速度曲线进行行程控制时最大速度、加速度、急动度都是根据《煤矿安全规程》和专家经验给出固定值而导致提升机运行能耗较大的问题,提出了一种矿井提升机节能运行的行程控制方法。分析了矿井提升机S形速度曲线的数学模型;给出了矿井提升机1次提升能耗关于提升机运行速度权重和加速度的表达式;利用模拟退火-遗传算法求解提升机1次提升能耗最小时的提升机运行速度权重和加速度,进而确定提升机运行最大速度、提升周期、急动度等S形速度曲线参数,利用该确定的S形速度曲线来控制提升机行程。仿真结果表明,该方法可降低提升机运行能耗9.14%,达到节能目的。

Stroke control method for energy-saving operation of mine hoist

At present,when the S-shaped speed curve is used for stroke control of mine hoist,the maximum speed,acceleration and jerk are fixed values according to Coal Mine Safety Regulations and experts'experience.Therefore the operation energy consumption of the hoist is relatively large.To solve this problem,a stroke control method for energy-saving operation of mine hoist is proposed.The mathematical model of mine hoist S-shaped speed curve is analyzed.The expression of mine hoist one-time hoist energy consumption about hoist operation speed weight and acceleration is proposed.The simulated annealing-genetic algorithm is applied to solve the hoist operation speed weight and acceleration when one-time hoist energy consumption of the hoist is the smallest.Furthermore,the S-shaped speed curve parameters such as the maximum hoist operation speed,hoist period and jerk are determined.The determined S-shaped speed curve is used to control the hoist stroke.The simulation results show that the method can reduce the energy consumption of hoist operation by 9.14%and achieve the purpose of energy saving.