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International Journal of

Recent Trends in Engineering

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International Journal of Recent Trends in Engineering (IJRTE)

ISSN 1797-9617

Volume 1,  Number 3,  May 2009

Issue on Electrical & Electronics

Page(s): 195-200

Hybrid Pso/ Self-Adaptive Evolutionary Programs For Economic Dispatch With Nonsmooth Cost Function

           Nidul Sinha, Bipul Syam Purkayastha, Biswajit Purkayastha

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Abstract

This paper investigates into hybridization between PSO and self-adaptive evolutionary programming techniques for solving economic dispatch (ED) problem with non-smooth cost curves where conventional gradient based methods are in-applicable. The convergence capability of evolutionary programming technique is enhanced with hybridization of self-adaptive evolutionary programming technique with PSO intelligence. Three types of hybridization in between PSO and self-adaptive classical EP (CEP)) i.e. PSO-CEP, CEP-PSO and CEP-PSO˘ are examined The performances of the hybrid algorithms are demonstrated on a moderately large power system with 40 units and comparison is drawn among floating point GA (GAF), CEP, PSO, PSO-CEP, CEP-PSO and CEP-PSO˘ methods in terms of the solution quality and computation efficiency. The simulation results show that CEP-PSO˘ method is the most efficient in finding higher quality solutions in non-convex ED problems.

Index Terms

Particle Swarm Optimization, Genetic Algorithm, Self-adaptive Evolutionary Programming, Economic Load Dispatch, Non-smooth Cost Function

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