Short Range Fixed Head Multi Objective Hydrothermal Scheduling Using Fuzzy Decision Making Technique

Abstract

In the multi objective framework, fuzzy decision making methodology is exploited to decide the generation schedule of a short range fixed head hydrothermal problem. The multi objective problem is formulated considering three objectives (i) Fuel cost (ii) 2SOemission (iii)2CO emission which are random variables. The solution set of such formulated problems is non inferior due to contradictions among the objectives taken. The weighting method is used to simulate the trade off relation between the conflicting objectives in the non inferior domain. Once the trade-off has been obtained, fuzzy set theory helps the system operator to choose the weighting pattern and thus the operating point that maximizes the satisfaction of all the objectives.