Study of Optimal Operation for Huaian Parallel Pumping Stations with Adjustable-Blade Units Based on Two Stages Decomposition-Dynamic Programming Aggregation Method
Two-stage decomposition-dynamic programming aggregation method has been first proposed and introduced to solve the mathematical model of daily optimal operation for parallel pumping stations with adjustable-blade units. Taking minimal daily electricity cost of single pump station as objective func-tion, the water quantity pumped by each station as coordinated variable, by means of the type of the pump units this model is decomposed into several first-stage sub-model of daily optimal operation with adjustable-blade for single pump station. Then taking minimal daily electricity cost of single pump unit as objective function, the water quantity pumped by each unit as coordinated variable, the first-stage submodel is decomposed into several second-stage submodel of daily optimal operation with adjustableblade for single pump unit which takes the blade angle as decision variable, the discrete values of water quantity pumped by each unit as state variable, and is solved by means of dy-namic programming method. The constructed aggregation model takes daily water quantity pumped by each pump unit as decision variable, the discrete values of water quantity pumped by parallel station group as state variable, and is also solved by dynamic programming method. The aggregation process replaces the traditional method of constructing equations. This method has first solved the optimal operation issues for multi-units of parallel stations with various opera-tion modes, time period division and daily average head of each station, and also provided theoretical support for the study on optimal operation of multi-stage pumping stations. Taking Huaian No.l, No.2, and No.4 parallel pumping stations as a study case, a series of optimization results have been obtained.
parallel pumping stations decomposition aggregation dynamic programming optimization adjustable-blade
Yi Gong Jilin Cheng Rentian Zhang Lihua Zhang
College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou, China College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou, China Jiangsu Surveying
国际会议
南昌
英文
554-562
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）