Voltage Regulators and Capacitor Placement in Three-phase Distribution Systems with Non-linear and Unbalanced Loads

Guido Carpinelli, Department of Electrical Engineering, University of Napoli 'Federico II'
Christian Noce, Enel Distribuzione S.p.A., Roma
Daniela Proto, Department of Electrical Engineering, University of Napoli 'Federico II'
Pietro Varilone, Department of Industrial Engineering, University of Cassino

Abstract

This paper investigates the problem of contemporaneously choosing optimal locations and sizes for both shunt capacitors and series voltage regulators in three-phase unbalanced distribution systems. The sizing and placement procedure not only minimizes the power losses along distribution feeders but also makes sure that both capacitors and series regulators will have the minimum possible impact on the harmonic distortion of bus voltages in the system. The fact that distribution systems can operate under unbalanced loading conditions means that the optimization will have to account for any unbalances in the system. A genetic algorithm, which successfully solves the above-described problem, is developed and tested. This paper presents the results of simulations for a 34-bus IEEE distribution test system.

Submitted: May 8, 2006 · Accepted: July 3, 2006 · Published: November 2, 2006

Recommended Citation

Carpinelli, Guido; Noce, Christian; Proto, Daniela; and Varilone, Pietro (2006) "Voltage Regulators and Capacitor Placement in Three-phase Distribution Systems with Non-linear and Unbalanced Loads," International Journal of Emerging Electric Power Systems: Vol. 7 : Iss. 4, Article 1.
DOI: 10.2202/1553-779X.1353
Available at: http://www.bepress.com/ijeeps/vol7/iss4/art1

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