AN INTERVAL-BASED METHOD FOR EVALUATION AND DECISION-MAKING OF POWER SYSTEM PLANNING PROJECTS

A key purpose of urban power system planning is to perform evaluations and make decisions on constructing projects in the near future. In competitive environment, electric utilities must find an efficient method to do this work under certain budget constraint. A new comprehensive method to evaluate the projects and make decision is proposed, which is based on interval analytic hierarchy process (IAHP) and interval 0/1 programming. Firstly, a benefit score for each project in form of an interval number is obtained through an IAHP process. Then an interval-based 0/1 programming model is set up to model resource allocation problem, in which the benefit scores, costs, budget constraint, and even relationships among projects are considered. Finally, the model is solved to get the optimal project subset. A case study shows that the presented method is capable of dealing with uncertainties in evaluation attributes, costs calculation and budgeting. Decision-makers are enabled to adjust decision parameters according to practical situation and their preference. So the proposed method is a kind of flexible decision-making tool and can be widely applied in practice.