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Title: Economic Dispatch Using Genetic Algorithm Based Hybrid Approach

Abstract

Power Economic Dispatch (ED) is vital and essential daily optimization procedure in the system operation. Present day large power generating units with multi-valves steam turbines exhibit a large variation in the input-output characteristic functions, thus non-convexity appears in the characteristic curves. Various mathematical and optimization techniques have been developed, applied to solve economic dispatch (ED) problem. Most of these are calculus-based optimization algorithms that are based on successive linearization and use the first and second order differentiations of objective function and its constraint equations as the search direction. They usually require heat input, power output characteristics of generators to be of monotonically increasing nature or of piecewise linearity. These simplifying assumptions result in an inaccurate dispatch. Genetic algorithms have used to solve the economic dispatch problem independently and in conjunction with other AI tools and mathematical programming approaches. Genetic algorithms have inherent ability to reach the global minimum region of search space in a short time, but then take longer time to converge the solution. GA based hybrid approaches get around this problem and produce encouraging results. This paper presents brief survey on hybrid approaches for economic dispatch, an architecture of extensible computational framework as common environment for conventional, geneticmore » algorithm and hybrid approaches based solution for power economic dispatch, the implementation of three algorithms in the developed framework. The framework tested on standard test systems for its performance evaluation. (authors)« less

Authors:
;  [1];  [2]
  1. University of Engineering and Technology, Taxila (Pakistan)
  2. National Power Construction Corporation - NPCC, 9-Shadman II, Lahore -54000 (Pakistan)
Publication Date:
Research Org.:
The ASME Foundation, Inc., Three Park Avenue, New York, NY 10016-5990 (United States)
OSTI Identifier:
20995629
Resource Type:
Conference
Resource Relation:
Conference: 14. international conference on nuclear engineering (ICONE 14), Miami, FL (United States), 17-20 Jul 2006; Other Information: Country of input: France
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; ALGORITHMS; DIAGRAMS; EQUATIONS; EVALUATION; HEAT; OPERATION; OPTIMIZATION; PERFORMANCE; PROGRAMMING; STEAM TURBINES; VALVES

Citation Formats

Malik, Tahir Nadeem, Ahmad, Aftab, and Khushnood, Shahab. Economic Dispatch Using Genetic Algorithm Based Hybrid Approach. United States: N. p., 2006. Web.
Malik, Tahir Nadeem, Ahmad, Aftab, & Khushnood, Shahab. Economic Dispatch Using Genetic Algorithm Based Hybrid Approach. United States.
Malik, Tahir Nadeem, Ahmad, Aftab, and Khushnood, Shahab. 2006. "Economic Dispatch Using Genetic Algorithm Based Hybrid Approach". United States.
@article{osti_20995629,
title = {Economic Dispatch Using Genetic Algorithm Based Hybrid Approach},
author = {Malik, Tahir Nadeem and Ahmad, Aftab and Khushnood, Shahab},
abstractNote = {Power Economic Dispatch (ED) is vital and essential daily optimization procedure in the system operation. Present day large power generating units with multi-valves steam turbines exhibit a large variation in the input-output characteristic functions, thus non-convexity appears in the characteristic curves. Various mathematical and optimization techniques have been developed, applied to solve economic dispatch (ED) problem. Most of these are calculus-based optimization algorithms that are based on successive linearization and use the first and second order differentiations of objective function and its constraint equations as the search direction. They usually require heat input, power output characteristics of generators to be of monotonically increasing nature or of piecewise linearity. These simplifying assumptions result in an inaccurate dispatch. Genetic algorithms have used to solve the economic dispatch problem independently and in conjunction with other AI tools and mathematical programming approaches. Genetic algorithms have inherent ability to reach the global minimum region of search space in a short time, but then take longer time to converge the solution. GA based hybrid approaches get around this problem and produce encouraging results. This paper presents brief survey on hybrid approaches for economic dispatch, an architecture of extensible computational framework as common environment for conventional, genetic algorithm and hybrid approaches based solution for power economic dispatch, the implementation of three algorithms in the developed framework. The framework tested on standard test systems for its performance evaluation. (authors)},
doi = {},
url = {https://www.osti.gov/biblio/20995629}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {7}
}

Conference:
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