摘要
以机组开机状态为变量,抽水流量和调速泵调速范围为约束条件,泵站总耗能最小为目标,采取直接优化的方法,建立了供水泵站优化运行的数学模型.利用混沌优化技术,通过对定速泵的变量取整以及判断调速泵转速是否在调速范围,形成泵站开机状态变量,对等式约束采取增加惩罚函数、不等式约束通过变量尺度变换和平移办法解决.应用Matlab语言编制优化计算程序,对泵站一天实际运行数据进行优化计算,总消耗功率比经验操作可减少3.67%左右.该方法简单易行,求解精度和可靠性较高,是解决既有定速泵又有调速泵泵站优化运行的有效方法.
Aimed at the minimal energy consumption, pump unit commitment and adjusting-speed selected as variables, and pumping flow and speed-adjusting range as constraint condition, the optimal mathematical model for mixed pumping stations was established. Used the method of chaos and Matlab, the optimization program was given. The method of penalty function and scale transformation were used in equality constraints and inequality constraints, respectively. Operation date of a pumping stations was al- so studied, showing that 3.67% energy could be saved comparing with its actual energy consumed in the same day. The new method is simple and easy to implement, with high accuracy and reliability, so it is an effective way for solving the optimization problem in mixed pumping station.
出处
《排灌机械工程学报》
EI
2010年第1期56-58,共3页
Journal of Drainage and Irrigation Machinery Engineering
基金
江苏省社会发展项目(BS2005039)
江苏高校重大基础研究资助项目(05KJA57005)
关键词
供水泵站
优化运行
数学模型
混沌
MATLAB
water-supply pumping station
optimal operation
mathematical model
chaos
Mattab
