An interval-parameter two-stage partial information programming model for optimal urban water resource planning
CHEN Hongguang1, WANG Zhongjun2, WANG Qiongya2, MAI Shukui21.School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China 2.College of Engineering, Northeast Agricultural University, Harbin 150030, China
Abstract In this paper, the interval two-stage stochastic programming method (ITSP) and the linear partial information (LPI) theory are combined to construct an interval-parameter two-stage partial information model (ITPM) with multi-source, multi-user and multi-objective. ITPM model can solve the problem that the traditional model ignores the uncertainty of urban rainfall-runoff which could lead to the discrepancy between the results of water distribution and the actual situation. The model was applied to the joint operation of surface water and groundwater in Harbin. Uncertainty of rainfall-runoff was analyzed by linear partial information theory. Four scenarios of flow level's probability distribution of discharge were obtained. Interval number and random number represent other uncertainties. An interactive algorithm was introduced to solve the model, and water shortage, optimal allocation, and overall benefits of urban water distribution system under different scenarios for urban water users were obtained. The allocation results were compared with those of the two-stage stochastic programming model. The results show that compared with the traditional water distribution model, the interval-parameter two-stage partial information model (ITPM) overcomes the impact of uncertainties such as rainfall-runoff on the benefits of water distribution system. ITPM model can effectively balance the economic benefits and the penalty risk of water shortage. Through ITPM model, four kinds of flow level distribution scenarios are obtained for water resources allocation in Harbin. When the probability of low flow level increases, the risk of water shortage increases, conservative water distribution schemes are obtained, and the economic benefits of the system decrease. When the probability of medium and high flow level increases, the available water quantity increases and gets positive water distribution schemes. In the same time, the economic benefits of the system increased. The optimal allocation schemes obtained by ITPM model is given in the form of intervals, which can more truly reflect the actual situation of urban water resources management and provide decision-making space for managers. Keywords:urban water resource;optimal allocation;uncertainty analysis;interval two-stage stochastic programming;linear partial information theory;rainfall-runoff;Harbin
PDF (5280KB)元数据多维度评价相关文章导出EndNote|Ris|Bibtex收藏本文 本文引用格式 陈红光, 王中君, 王琼雅, 买书魁. 基于区间两阶段-部分信息模型的城市水资源优化配置. 资源科学[J], 2019, 41(8): 1416-1426 doi:10.18402/resci.2019.08.03 CHEN Hongguang. An interval-parameter two-stage partial information programming model for optimal urban water resource planning. RESOURCES SCIENCE[J], 2019, 41(8): 1416-1426 doi:10.18402/resci.2019.08.03
Table 4 表4 表4用户配水目标值、最小最大需水量和管道输水能力 Table 4Target of user water allocation, minimum and maximum water demand, and water conveyance capacity of pipelines
Figure 4Water allocation scheme of city water resource system based on two-stage stochastic programming (TSP) and interval two-stage partial information programming model (ITPM)
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