Multir objective decisior-making of water resources based on interval hesitant fuzzy language set
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Abstract:
Taking the water resources allocation project in the northern Hubei as the object, the multi-water source multi-objective optimal allo cation was studied under the background of a large-scale water transfer projet. The reservoirs in the northern Hubei are div ided into three types: filling reservoirs, compensation reservoirs, and online reservoirs. The water resources allocr tion project in the northern Hubei is systematically generalized according to the characteristics of various reservoirs.A multi-water source multi-objedive optimal allocation model is established with the minimum annual water shortage and the minimum water transfer cost as the objective function.The weight coefficient method is used to obtain the Pareto optimal set. The multi-objective decision-making method based on interval hesitant fuzzy language and TOPSIS is adopted to evaluate the water shortage and wat er transfer of each scheme and seled the optimal scheme. The results show that: for the water resources allocation project in the northern Hubei, the scheme with a weight ratio of water shortage to water transfer being 7:3 is the best in conrprehensive evaluation,which focuses on water shortage while the water transfer cost is taken into account; the multi-objective decision-making method of water resources based on interval hesitant fuzzy language set and TOPSIS has been proved to have high stability and feasibility by examples.
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