### Optimal Placement and Sizing of Multiple Capacitors in Radial Distribution Systems Using Modified TLBO Algorithm

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#### Abstract

Nowadays due to development of distribution systems and increase in electricity demand, the use of capacitors in parallel are increased. Determining the installation location and size are two significant factors affecting network loss reduction and improving network performance. The optimal capacitor placement and sizing problem is formulated as a mixed integer nonlinear optimization problem subject to highly nonlinear equality and inequality constraints. This paper, proposes an efficient method based on Modified Teaching Learning Based Optimization Algorithm (MTLBO) for optimal placement and sizing of multiple capacitors in a radial distribution system(RDS) is proposed, which can greatly envisaged with problems. The objective function is to minimize the network active power losses, improving system voltage profile, increasing voltage stability index and load balancing within the frame work of system operation and security constraints. The proposed method is implemented on 33 and 69 bus radial distribution systems and the results are compared with results of other popular optimization methods available in published articles. Test results show that the proposed method is more effective and has higher capability in finding optimum solutions. *Copyright © 2013 Praise Worthy Prize - All rights reserved.*

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Billinton R., Allan R.N., Reliability evaluation of Power Systems (Plenum, New York, 1996, 2nd edn.).

Shirmohammadi D., Hong H. W., Semlyen A. and Luo G. X., A Compensation - Based Power Flow Method for Weakly Meshed Distribution and Transmission Networks, IEEE Transactions on Power Systems, vol. 3, no. 2, 1988, pp. 753-762.

Ghosh S. and Das D., Method for load-flow solution of radial distribution networks, IEEE Proceedings on Generation, Transmission & Distribution, vol. 146, no. 6, 1999, pp. 641-648.

Goswami, S.K., and Basu, S.K., Direct solution of distribution systems, IEEE Proc. C., 188, (I), 1991, pp.78-88.

Das D., Optimal Placement of Capacitors in Radial Distribution System using a Fuzzy-GA method, Electrical Power and Energy System, vol. 30, 2008, pp.361-367.

Sundhararajan S. and Pahwa A., Optimal Selection of Capacitors for Radial Distribution Systems using Genetic Algorithm, IEEE Transactions on Power Systems, vol. 9, no. 3, 1994, pp. 499-1507.

Kasaei M. J., Gandomkar M., Loss Reduction in Distribution Network Using Simultaneous Capacitor Placement and Reconfiguration with Ant Colony Algorithm, IEEE Transaction on Power and Energy Engineering Conference (APPEEC), 15 April 2010,pp.1-4.

Sarma A. Kartikeya and Rafi K. Mohammand, Optimal Selection of Capacitors for Radial Distribution Systems Using Plant Growth Simulation Algorithm, International journal and science and technology, vol.30, May, 2011, pp.43-54.

Sydulu M. and Prakash K., Particle swarm optimization based capacitor placement on radial distribution systems in: IEEE Power Engineering Society general meeting 2007. pp. 1-5.

Taher S, Bagherpour R. A new approach for optimal capacitor placement and sizing in unbalanced distorted distribution systems using hybrid honey bee colony algorithm. Int J Electr Power Energy Syst.vol. 49, 2013, pp.430–48.

Tabatabaei SM , Vahidi B. Bacterial foraging solution based fuzzy logic decision for optimal capacitor allocation in radial distribution system. Electr Power Syst Res, vol.81(4), 2011,pp.1045-50.

Haque, M.H., Efficient load flow method for distribution systems with radial or mesh configuration.IEE Proc. On Generation, Transmission and Distribution. Vol. 143(1), 1996, pp. 33-38.

Charkravorty M., Das D., Voltage stability analysis of radial distribution networks, International journal of Electrical Power and Energy Systems.vol. 23(2), 2001, pp.129-135.

Srinivas R. and Narasimham S.V.L., Optimal capacitor placement in a radial distribution using plant growth simulation algorithm, Proceedings of world academy of science, Engineering and Technology,vol.35, 2008, pp.716-723.

Rao, R.V., Savsani, J.V., Balic, J., ‘Teaching-learning based optimization algorithm for unconstrained and constrained real-parameter optimization problems’, Engg. Opt., vol. 44 (12), 2012, pp.1447-62.

Moradi MH, Abedini M. A combination of genetic algorithm and particle swarm optimization for optimal DG location and sizing in distribution systems. Int J Electr Power Energy Syst , vol.34(1), 2012,pp. 66–74.

Ahmed R., Abul wafa . Optimal capacitor allocation in radial distribution systems for loss reduction: A two stage method. Electric Power Systems Research, vol.95, 2013, pp. 168–174.

Aman, M.M., Jasmon, G.B., Bakar, A.H.A., Mokhlis, H., Optimum capacitor placement and sizing for distribution system based on an improved voltage stability index, (2012) International Review of Electrical Engineering (IREE), 7 (3), pp. 4622-4630.

Shashank, T.R., Rajesh, N.B., Analysis of Fast Voltage Stability Index on long transmission line using Power World Simulator, (2013) International Review on Modelling and Simulations (IREMOS), 6 (3), pp. 888-892.

Sattianadan, D., Sudhakaran, M., Dash, S.S., Vijayakumar, K., Cost / loss minimization by the placement of DG in distribution system using ga and PSO - A comparative analysis, (2013) International Review of Electrical Engineering (IREE), 8 (2), pp. 769-775.

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