Title: Effect of distributed generation modelling on performance of distribution systems

Authors: Adel F. Naiem; Almoataz Y. Abdelaziz; Yasser G. Hegazy; Metwally A. Elsharkawy; Ismail A. El-Shahat

Addresses: Department of Electrical Power and Machines, Faculty of Engineering, Ain Shams University, Abdo Basha Square, Abbassia, 11517, Cairo, Egypt. ' Department of Electrical Power and Machines, Faculty of Engineering, Ain Shams University, Abdo Basha Square, Abbassia, 11517, Cairo, Egypt. ' Department of Electrical Power and Machines, Faculty of Engineering, Ain Shams University, Abdo Basha Square, Abbassia, 11517, Cairo, Egypt. ' Department of Electrical Power and Machines, Faculty of Engineering, Ain Shams University, Abdo Basha Square, Abbassia, 11517, Cairo, Egypt. ' Department of Electrical Power and Machines, Faculty of Engineering, Ain Shams University, Abdo Basha Square, Abbassia, 11517, Cairo, Egypt

Abstract: Due to the continuous increase of distributed generation (DG) penetration into distribution systems, load flow analysis always needs improvement to be more flexible, fast and computationally efficient especially when integrating DG with existing distribution systems. The work in this paper is divided into two parts; in the first part a new algorithm is developed to solve the power flow problem for radial distribution systems with DG modelled as PV bus. This algorithm can be applied for all distribution systems with any number of buses and laterals. In the second part, the developed load flow programme is employed to study the effect of changing the DG location on electric losses and voltage profile. The best location for DG can be determined accordingly to achieve minimum losses with best voltage profile. Typical case studies are implemented and the results obtained are presented and discussed.

Keywords: load flow analysis; distributed generation; electrical losses; voltage profile; generation modelling; system performance; distribution systems; power flow.

DOI: 10.1504/IJPEC.2013.050930

International Journal of Power and Energy Conversion, 2013 Vol.4 No.1, pp.47 - 61

Received: 15 Feb 2011
Accepted: 09 Feb 2012
Published online: 31 Mar 2014 *

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