Optimal Location and Sizing of Capacitors on Radial Distribution Systems

Mohd abdul fahad, Dr.B.neelakanteshwar Rao


Distribution system forms a major part in the power system as it is the link between bulk power transmission system and the consumer load. Distribution systems are growing in large and are stretched too far leading higher system losses, poor voltage regulation and poor power factor. These factors can be improved to a greater extent using reactive power compensation. As major part of the load in distribution system is of inductive type, reactive power compensation can be done by placing capacitor banks at optimal locations in the system. In this work, it is proposed to find optimal location and size of the capacitors to minimize the losses and improve the voltage profile in a given distribution system.

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K Prakash, M Sydulu (2006), “A novel approach for optimal location and sizing of capacitors on radial distribution systems using loss sensitivity factors and alpha- coefficients”, IEEE PES Power Systems Conference and Exposition, pp. 1910-1911, Atlanta, GA.

Jen-Hao Teng (July 2003), “A direct approach for distribution system load flow solutions”, IEEE Trans. on Power Delivery, Volume 18, Issue 3, pp. 882−887.

K Prakash, M Sydulu (2007), “Particle swarm optimization based capacitor placement on radial distribution systems”, IEEE Power Engineering Society General Meeting, pp. 1−5, Tampa, FL, DOI:

1109 / PES. 2007.386149.

Chung-Fu Chang (November 2008), “Reconfiguration and capacitor placement for loss reduction of distribution systems by ant colony search algorithm”, IEEE Trans. on Power Systems, Volume 23, Issue 4, pp. 1747−1755.

Yan Xu, Zhao Yang Dong, Kit Po Wong, Benjamin Yue (November 2013), “Optimal capacitor placement to distribution transformers for power loss reduction in radial distribution systems”, IEEE Trans. on Power Systems, Volume 28, Issue 4, pp. 4072−4079.

ME Baran, FF Wu (Jan. 1989), “Optimal sizing of capacitors placed on a radial distribution system”, IEEE Trans. Power Delivery, Volume 1, pp. 1105−1117.

MH Haque (Sep. 1999), “Capacitor placement in radial distribution systems for loss reduction”, IEE Proc-Gener Transm Distrib, Volume 146, Issue 5.

ME Baran, FF Wu (Jan. 1989), "Optimal capacitor placement on radial distribution system”, IEEE Trans. Power Delivery, Volume 4, Issue 1, pp. 725−734.

GE Mendoza, VM Vacas, NR Ferreira (2018), "Optimal capacitor allocation and sizing in distribution networks using particle swarm optimization algorithm”, 2018 Workshop on Communication Networks and Power Systems (WCNPS), pp. 1−5, Brasília.

TS Asl, S Jamali (2009), “Optimal capacitor placement size and location of shunt capacitor for reduction of losses on distribution feeders”, 2009 International Conference on Clean Electrical Power, Capri, pp. 223−226.


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