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What is Economic Load Dispatch Problem

Chapter 15
Handbook of Research on Novel Soft Computing Intelligent Algorithms: Theory and Practical Applications
The economic dispatch problem is a non linear programming optimization problem. Were the main objective is to determine the optimal schedule of online generating units so as to meet the demand power at minimum operating cost under various system and operating constraints. The importance of economic dispatch is to get maximum usable power using minimum resources. Conventionally, the economic dispatch problem of a power system is solved in the environment of unit commitment and real time operation plants by assuming that each of the dispatchable on-line units can be regulated continuously between its minimum generation limit, P min , and its maximum generation limit, P max .
Published in Chapter:
Multi-Objective Generation Scheduling Using Genetic-Based Fuzzy Mathematical Programming Technique
Abdellah Derghal (Oum el Bouaghi University, Algeria) and Noureddine Goléa (Oum el Bouaghi University, Algeria)
Copyright: © 2014 |Pages: 25
DOI: 10.4018/978-1-4666-4450-2.ch015
Abstract
This chapter presents a solution for multi-objective Optimal Power Flow (OPF) problem via a genetic fuzzy formulation algorithm (GA-FMOPF). The OPF problem is formulated as a multiple objective problem subject to physical constraints. The objectives and constraints are modelled as fuzzy mathematical programming problems involving the minimization of the objective function with fuzzy parameters and uncertainties in set of constraints. So the method is capable of representing practical situations in power system operation where the limits on specific variables are soft and the small violations of these limits may be tolerable. Then, genetic algorithm is used in order to seek a feasible optimal solution to the environmental/economic dispatch problem. Illustrative examples are given to clarify the proposed method developed in this manuscript and the performance of this solution approach is evaluated by comparing its results with that of their existing methods.
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