南水北调与水利科技Issue(2)：314-319,6.DOI:10.13476/j.cnki.nsbdqk.2015.02.027
基于单机组试验选优的并联泵站群组合优化运行算法研究
Study on optimal operation method for parallel pumping stations with combinational working condi tion adjustments based on experimental opti mization for single pump unit
摘要
Abstract
Taking the minimaldaily electric cost of paralelpumping stations asthe objectivefunction,the mathematicalmodelof daily optimal operation for parallel pumping stations with adjustable blades and variable speeds was constructed with four deci-sion variables,including the operation number of pumping stations,operation number of units in a single pumping station, blade angle,andunitspeed.Thetwo-stagedecomposition-dynamicprogrammingaggregationmethodbasedontheexperimentalopti-mizationforthesecondstagesub-modelwasproposedtosolvethemathematicalmodel.Throughthetwo-stagedecompositionof theoriginalmodel,themathematicalmodelofdailyoptimaloperationforthesinglepumpunitwithadjustablebladesandvaria-ble speeds were obtained. The second-stage sub-model took the minimal daily electric cost of the single pump unit as the objec-tive function, the blade angle and unit speed in each time period as the decision variables, and was solved by the experimental op-timization. After a series of optimization of the sub-model under different water pumping quantities, the relationship between eachwaterpumpingquantityandthecorrespondingwaterpumpingcostwasobtained.Thentheoriginalmodelwastransformed into the aggregation model of daily optimal operation for the parallel pumping stations with adjustable blades and variable speeds,andwassolvedbytheone-dimensionaldynamicprogrammingmethod.Theproposedmethodcanfurtherimprovetheop-timal operation theory of parallel pumping stations with various operation modes,and the operation benefit was more significant comparedwiththatobtainedfromtheoptimaloperationwithasingleoperationmode.Astudycaseusingtheoptimizationmeth-od showed that the unit cost of optimal operation under 100%,80%, and 60% loads within the average daily heads can be re-duced by 8. 41%,23.07%,and 32. 79% compared with the operation with the fixed blade angle and constant speed.关键词
并联泵站群/组合优化/运行/大系统/试验选优/二级分解-动态规划聚合/变角变速Key words
paral el pumping stations/combinational optimization/operation/large-scale system/experimental optimization/two-stage decoMposition-dynamic programming aggregation/adjustable blade and variable speed分类
建筑与水利引用本文复制引用
龚懿,程吉林,刘静森..基于单机组试验选优的并联泵站群组合优化运行算法研究[J].南水北调与水利科技,2015,(2):314-319,6.基金项目
江苏省自然科学基金-青年基金项目( BK 20130446) （ BK 20130446）
2014年度扬州大学科技创新培育基金(2014C XJ026) （2014C XJ026）
