基于Java的排涝泵站站内优化调度软件开发

Development of a Java-based optimization scheduling software for drainage pumping stations

【目的】针对安装全调节轴(混)流泵的排涝泵站开发计算软件确定运行中的最优开机台数组合和各机组的叶片角度,以获得最高装置效率或最大流量。【方法】根据实测的扬程和电动机输入功率等运行参数,结合水泵性能曲线推算水泵流量和流道阻力参数,研究装置效率随叶片角度变化规律。以平均装置效率最高或总流量最大为目标函数,建立动态规划模型进行站内运行优化调度,获得最优的开机组合和运行机组的叶片角度。在集成环境IntelliJ IDEA下,采用Java开发了通用的可视化的计算软件。【结果】对某排涝泵站,通过软件获得并分析了装置效率随叶片角度(或流量)的变化曲线,给出了在Hsy=5.3 m条件下不同需要流量下的优化运行方案。当需要流量为32 m^(3)/s时,与各机组均以+1.0°叶片角度的简单决策方案相比,软件给出的优化方案装置效率提高了0.76%。【结论】实际工程应用表明所开发的软件性能稳定,计算精确,实用性强。

【Objective】Improving efficiency and water flow rate is a criterion in designing pumping stations.This paper presents a software we developed to optimize the combination of running pumps and blade angles for drainage pumping stations that are equipped with fully adjustable axial(mixed)flow pumps.【Method】The software was developed using Java in the integrated environment IntelliJ IDE,with a universal visualization interface.It calculated water flow rate and flow resistance parameters of each pump,based on measured operating parameters,which include head and motor input powers,and performance curve of each pump.The software generated curves illustrating how the device efficiency changes with the blade angle.A dynamic programming model was established to optimize the operation and scheduling of the station,with the optimization objective to maximize the average device efficiency or total flow rate.This enables us to obtain an optimal combination of running pumps and blade angle for each running pump.【Result】The software was applied to some drainage pumping stations to graphically analyze the variation in device efficiency with blade angle(or flow rate).It provides optimized operation plans under different required flow rates when Hsy=5.3 m.When the required flow rate was 32 m^(3)/s,the optimal scheme provided by the software improves the efficiency of the device by 0.76%,compared to the simple decision scheme for each running pump with a blade angle of+1.0°.【Conclusion】The software we developed is accurate and user-friendly.Practical applications showed that its performance is stable and can improve the operation and management of drainage pumping stations.