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An efficient constraint handling approach for economic load dispatch problem with non-smooth cost function

Abdullah, Mohd Noor and Bakar, A. H. A. and Mokhlis, Hazlie and Jamian, J. J. (2015) An efficient constraint handling approach for economic load dispatch problem with non-smooth cost function. In: 9th International Power Engineering and Optimization Conference (PEOCO 2015), 18-19 March 2015, Hotel Equatorial, Melaka.


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Increasing of the power demand and fuel cost in power generation required an advanced algorithm for scheduling the output of generating unit in economical manner. The economic load dispatch problem (ELD) problem consists several operational and system constraints such as prohibited operating zones (POZs) and ramp-rate limit need to handle wisely by optimization algorithm. Previously, the penalty function is widely used to satisfy the power balance and other constraints by augmenting the objective function with the penalized function. However, it required a proper penalty factor tuning and depends on the size of problem. This paper proposes an efficient constraint handling based on the repairing or adjusting infeasible solution into feasible solution in every iterative process. The simulation results show that the proposed constraints handling approach is better than penalty function approach in term of convergence characteristic and robustness

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: constraint handling; economic load dispatch; modified particle swarm optimization; prohibited operating zones
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1001-1841 Production of electric energy or power. Powerplants. Central stations
Divisions: Faculty of Electrical and Electronic Engineering > Department of Electrical Power Engineering
Depositing User: Mrs. Nurhayati Ali
Date Deposited: 31 Mar 2015 06:20
Last Modified: 31 Mar 2015 06:20
URI: http://eprints.uthm.edu.my/id/eprint/6739
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