矿井多水平接力排水系统优化控制

Optimal control of mine multi-level relay drainage system

矿井多水平接力排水系统的用电量非常大,为提高排水系统运行的经济性,需要优化排水系统控制,而目前的矿井多水平接力排水系统优化控制方法存在容易溢仓、水泵频繁启停等问题。针对上述问题,提出了一种矿井多水平接力排水系统优化控制策略。以各水平水仓水位必须处于最低水位与最高水位之间、各水平水仓排水量不小于涌水量为约束条件,1个排水周期内各水平用电成本之和最低为目标函数,建立了矿井多水平接力排水系统优化控制模型。通过在约束条件中引入裕量,避免了水泵频繁启停;利用灰色模型进行涌水量预测,以获得精确的水仓水位,避免了溢仓事故。应用结果表明,该优化控制策略在保证排水安全性的前提下,降低了排水系统用电成本。

The electricity consumption of mine multi-level relay drainage system is very large,in order to improve economy of drainage system operation,it is necessary to optimize drainage system control,but current optimal control methods of mine multi-level relay drainage system have some problems such as easy overflow of sump and frequent start and stop of water pump.For the above problems,an optimal control strategy of mine multi-level relay drainage system was proposed.The optimal control model of mine multi-level relay drainage system was established which took water level of each level sump must be between the lowest and highest level and displacement of each level sump should not be less than inflow as constraint conditions,and the lowest sum of electricity costs of each level within one drainage period as objective function.By introducing margin into flow constraint condition,frequent start and stop of water pump is avoided.Gray model is used to predict water inflow,so as to obtain accurate water level of sump and avoid overflow accident.The application results show that the optimal control strategy can reduce electricity cost of drainage system under premise of ensuring safety of drainage.