A Stochastic Multi-Objective Chance-Constrained Programming Model for Water Supply Management in Xiaoqing River Watershed

In this paper, a stochastic multi-objective chance-constrained programming model (SMOCCP) was developed for tackling the water supply management problem. Two objectives were included in this model, which are the minimization of leakage loss amounts and total system cost, respectively. The traditiona...

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Vydáno v:Water (Basel) Ročník 9; číslo 6; s. 378
Hlavní autoři: Xu, Ye, Li, Wei, Ding, Xiaowen
Médium: Journal Article
Jazyk:angličtina
Vydáno: Basel MDPI AG 27.05.2017
Témata:
China
lognormal distribution
Management
Normal distribution
Random variables
Reservoirs
rivers
uncertainty
Water
water management
Water shortages
Water supply
Watershed management
Watersheds
China
ISSN:2073-4441, 2073-4441
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Shrnutí:In this paper, a stochastic multi-objective chance-constrained programming model (SMOCCP) was developed for tackling the water supply management problem. Two objectives were included in this model, which are the minimization of leakage loss amounts and total system cost, respectively. The traditional SCCP model required the random variables to be expressed in the normal distributions, although their statistical characteristics were suitably reflected by other forms. The SMOCCP model allows the random variables to be expressed in log-normal distributions, rather than general normal form. Possible solution deviation caused by irrational parameter assumption was avoided and the feasibility and accuracy of generated solutions were ensured. The water supply system in the Xiaoqing River watershed was used as a study case for demonstration. Under the context of various weight combinations and probabilistic levels, many types of solutions are obtained, which are expressed as a series of transferred amounts from water sources to treated plants, from treated plants to reservoirs, as well as from reservoirs to tributaries. It is concluded that the SMOCCP model could reflect the sketch of the studied region and generate desired water supply schemes under complex uncertainties. The successful application of the proposed model is expected to be a good example for water resource management in other watersheds.
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ISSN:2073-4441
2073-4441
DOI:10.3390/w9060378