A Revised Multi-choice Goal Programming Framework for Economic-environmental Power Generation and Dispatch Problem

This paper presents the potential use of revised multi-choice goal programming approach for modelling and solving economic- environmental power generation and dispatch problems in a thermal power plant operation and planning horizon. In the proposed approach, the objective functions and certain constraints having the characteristics of nonlinear programming are first transformed into their equivalent linear forms to employ linear goal programming methodology in the process of solving the problem. Then, in the model formulation, the objectives with multiplicity of aspiration levels are converted into the standard form of goals in goal programming approach to arrive at a most satisfactory decision in the multiobjective decision making environment. In the solution process, minsum goal programming approach is addressed for achievement of objective goals within their tolerance ranges specified in the decision making context.To illustrate the potential use of the approach, the proposed model is tested on IEEE 6-Generator 30-Bus system. In addition, the model solution is compared with the solutions obtained by using other approaches studied previously.