DISTRIBUTED GENERATORS IN A POWER DISTRIBUTION SYSTEM

M. Abbagana^1*, G. A. Bakare², I. Mustapha¹,,B.U.Musa¹

¹Department of Electrical and Electronics Engineering, University of Maiduguri, Nigeria

²Electrical Engineering Programme, Abubakar Tafawa Balewa University, Bauchi Nigeria.

E-mail: moduabbagana@yahoo.com,   bakare_03@yahoo.com, mustib@unimaid.edu.ng, musa_bu@yahoo.com

ABSTRACT

Distributed and disperse generation of electricity have been used to address economical and environmental challenges associated with centralized generation of electricity. This paper aims to minimize the power losses and improve the voltage profile of power distribution system by determining the optimal location and size of two Distributed Generation (DG) units. Differential Evolution (DE) technique is used for optimizing the formulated problem. Performance of the technique is tested on IEEE 33 bus radial distribution system consisting of 32 sections and six different scenarios were created by varying the DE parameters. MATPOWER and MATLAB software were used for the simulation. The results show that proper placement and size of DG units can have a significant impact on system loss reduction and voltage profile improvement. On the other hand, improper choice of size would lead to higher losses.

Keywords: Differential Evolution, Distributed Generation, Loses, Optimization, Voltage, Nodes