Optimal Multiobjective Multireservoir Operation Using Interactive Decision Making by Parametric Approach

Abstract

In this study, the multipurpose multireservoir operating model is built, and its applicability is demonstrated through the case study of multireservoir network in a subbasin of the Godavari river, Maharashtra state, India. The present technique offers the practical solution approach to incorporating fuzzy parametric programming (FPP) and fuzzy linear programming (FLP). The model considered all reservoir operation parameters to be fuzzified simultaneously. Exponential membership functions define the objective function coefficients and resources, and the technological coefficients are defined by a linear membership function, which is simultaneously fuzzified over the tolerance range. The interactive concept of the procedure is carried 466out according to decision makers choice to find the optimum solutions for both the objective functions from various grades of precision (μ). The degree of satisfaction (λ) obtained corresponding to (μ = 0) which is equal to 0.893; however, the corresponding (μ = 1) to is equal to 0.65. The study included the knowledge, information and preferences of the decision makers acquired through interactions. Hence, all solutions are optimal and effective at any level of precision.