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城镇圩区排涝泵站群日常运行方案优化

刘静森, 程吉林, 龚懿

刘静森, 程吉林, 龚懿. 城镇圩区排涝泵站群日常运行方案优化[J]. 农业工程学报, 2014, 30(17): 141-148. DOI: 10.3969/j.issn.1002-6819.2014.17.019
引用本文: 刘静森, 程吉林, 龚懿. 城镇圩区排涝泵站群日常运行方案优化[J]. 农业工程学报, 2014, 30(17): 141-148. DOI: 10.3969/j.issn.1002-6819.2014.17.019
Liu Jingsen, Cheng Jilin, Gong Yi. Scheduling optimization of drainage pumping stations in urbanization polders[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2014, 30(17): 141-148. DOI: 10.3969/j.issn.1002-6819.2014.17.019
Citation: Liu Jingsen, Cheng Jilin, Gong Yi. Scheduling optimization of drainage pumping stations in urbanization polders[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2014, 30(17): 141-148. DOI: 10.3969/j.issn.1002-6819.2014.17.019

城镇圩区排涝泵站群日常运行方案优化

基金项目: 国家自然科学基金项目(60974099);教育部博士点基金项目(20093250110002);江苏省水利科技重点项目(2010060);2013年度江苏省水利动力工程重点试验室开放课题项目(K13023)

Scheduling optimization of drainage pumping stations in urbanization polders

  • 摘要: 为降低城镇圩区排涝泵站群日常运行能耗,提出排涝站群总能耗最小的多方案试验选优、圩外河道水位控制去劣的优化运行调度方法。将圩区泵站群分组作为试验因素、每组泵站的开机方案为试验水平,以泵站群总能耗为试验结果开展正交试验,对试验结果应用正交分析得到泵站群若干种优化运行方案序列,选择总能耗最小且满足圩外河道的水位控制要求的方案为最优运行调度方案。以上海市城区某区域为实例,应用优化方法编制了2种潮水过程、4种降水条件下的优化调度预案;在不能利用潮水自排的最不利水文工况下,应用优化调度方案与现行调度方案相比,总电功耗最大可节省12%。通过开展优化调度方案与现行方案的节能效益比较,验证了现行方案的合理性并对现行方案提出了优化建议。一方面可为城镇圩区水行政主管部门优化日常调水预案提供参考,另一方面也为丰富和完善排泵站群优化调度方法的理论研究作了有益尝试。
    Abstract: Abstract: For guaranteeing flood control security, the drainage pumping stations with large installed capacity were distributed densely at urbanization areas set with embankments. Conducting optimization research on operation scheme under different precipitation conditions lower than drainage standard should effectively decrease energy consumption. The main difficulty of operation scheme optimization of urban drainage pumping stations was that with the increase of pumping station quantity and single station's installed capacity, the combination number of feasible schemes increased too fast to be difficult to calculate. This paper proposed an optimization method which selected the lowest total energy consumption from multiple schemes with orthogonal test and eliminated unqualified schemes with controlling river water level outside the polder. Using this method, pumping stations in the drainage area were divided into different groups according to their actual layout, and a certain quantity of start-up schemes combined with practical experience were established for each group of pumping stations under different precipitation conditions. Then, taking pumping station group as the test factor, start-up scheme as the test level, and the lowest total electric power consumption as the objective function, the orthogonal experiment was carried out. The sequence of influence extent of various test factors and levels as well as the best test lever of each test factor to the target function could be obtained by conducting orthogonal analysis on test results. Thus the sequence of multiple optimized operation schemes including theoretically the best one could be obtained. Using the unsteady flow model to calculate each level of river water for each optimization scheme, and if each level of river water was within the allowable variation amplitude, the scheme was optimal and feasible, otherwise, the scheme could be crossed out. The operation scheme which met the requirement of the lowest total electric power consumption was found out from all of the feasible schemes, and taken as the best optimized scheduling method under the specific precipitation condition. Taking certain area of Shanghai as a study case, the optimized scheduling schemes under four common precipitation conditions lower than the drainage standard were worked out respectively for the two hydrological conditions, i.e. self-draining via the tide outside the river and self-draining that cannot utilize the tide outside the river. On the most unfavorable hydrological condition that could not utilize the tide outside the river for self-draining, the total electrical power consumption of the optimized scheduling scheme could be saved about 12% compared with the current operation scheme. By comparing energy-saving benefit between optimal scheduling schemes and current schemes, the rationality of current scheme had been verified, and the optimization suggestion was proposed in this paper as well. The method proposed in this paper was a beneficial attempt to enrich and improve the method of optimizing operation scheme of pumping stations.
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出版历程
  • 收稿日期:  2014-05-15
  • 修回日期:  2014-08-11
  • 发布日期:  2014-08-31

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