Optimal Placement of Capacitors for Achieve the Best Total Generation Cost by Genetic Algorithm

Economic Dispatch (ED) is one of the most
challenging problems of power system since it is difficult to determine
the optimum generation scheduling to meet the particular load demand
with the minimum fuel costs while all constraints are satisfied. The
objective of the Economic Dispatch Problems (EDPs) of electric
power generation is to schedule the committed generating units
outputs so as to meet the required load demand at minimum operating
cost while satisfying all units and system equality and inequality
constraints. In this paper, an efficient and practical steady-state genetic
algorithm (SSGAs) has been proposed for solving the economic
dispatch problem. The objective is to minimize the total generation
fuel cost and keep the power flows within the security limits. To
achieve that, the present work is developed to determine the optimal
location and size of capacitors in transmission power system where,
the Participation Factor Algorithm and the Steady State Genetic
Algorithm are proposed to select the best locations for the capacitors
and determine the optimal size for them.

• Mohammad Reza Tabatabaei
• Mohammad Bagher Haddadi
• Mojtaba Saeedimoghadam
• Ali Vaseghi Ardekani

• Economic Dispatch
• Lagrange
• Capacitors Placement
• Losses Reduction
• Genetic Algorithm.

[1] H.H. Happ, "Optimal power dispatch – A comprehensive survey," IEEE
Trans. Power App. Syst., vol. PAS-96, pp. 841-854, 2001.
[2] B. H. Chowdhury and S. Rahman, "A review of recent advances in
economic dispatch," IEEE Trans. on Power Systems, vol. 5, pp.
1248-1259, November 1990.
[3] G.B. Sheble and K. Brittig, "Refined genetic algorithm – economic
dispatch example," IEEE Trans. on Power Systems, vol. 10, no. 1,
pp.117-124, 1995.
[4] D. Walters and G.B. Sheble, "Genetic algorithm solution of economic
dispatch with valve point loading," IEEE Trans. on Power Systems, vol 8,
no. 3, pp. 1325-1331, 1993.
[5] C. C. Kuo, "A novel coding scheme for practical economic dispatch by
modified particle swarm approach", IEEE Trans. Power Syst., vol. 23, no.
4, pp.1825 -1835, 2008.
[6] T. Adhinarayanan and M. Sydulu ,"A directional search genetic algorithm
to the economic dispatch problem with prohibited operating zones",
Proc.IEEE/PES Transmission and Distribution Conf. Expo., pp.1 -5,
2008.
[7] C.-L. Chiang, "Genetic-based algorithm for power economic load
dispatch", IET Gen., Transm., Distrib., vol. 1, no. 2, pp.261 -269, 2007.
[8] J. S. Al-Sumait, A. K. Al-Othman, and J. K. Sykulski, "Application of
pattern search method to power system valve-point economic load
dispatch," International Journal of Electrical Power and Energy Systems,
vol. 29, pp. 720-730, 2007.
[9] J. S. Al-Sumait, J. K. Sykulski, and A. K. Al-Othman, "Solution of
different types of economic load dispatch problems using a pattern search
method," Electric Power Components and Systems, vol. 36, pp. 250-265,
2008.