Original scientific paper

A novel load flow algorithm for radial distribution networks with dispersed generation

Rene Prenc ; HEP – ODS d.o.o., Croatian Power Company – Distribution System Operator, Distribution area – Elektroprimorje Rijeka, V. C. Emina 2, 51000 Rijeka, Croatia
Davor Škrlec ; University of Zagreb, Faculty of Electrical Engineering and Computing, Unska 3, 10000 Zagreb, Croatia
Vitomir Komen ; University of Rijeka, Faculty of Engineering, Vukovarska 58, 51000 Rijeka, Croatia

Abstract

During the planning and designing stage of power distribution networks development, a large number of load flow calculations have to be made. The purpose of these calculations is to check if the thermal constraints and voltage limits of network elements are breached in order to comply with the EN 50160 quality standard. With the integration of distributed generation, the once passive distribution networks are rapidly changing to active networks. As a consequence, the planners have to take into consideration the bidirectional power flow in distribution networks. Also, the existing power flow algorithms for unidirectional radial distribution feeders need to adapt to new circumstances. This paper considers a new iterative algorithm for load flow calculation of a radial distribution feeder with distribution lines represented by a detailed π equivalent model including dispersed generation. In so doing, the influence on voltage profile and technical power losses is analysed in cases with and without the connection of dispersed generation. The algorithm is implemented in Matlab programming language.

Keywords

active distribution networks; bidirectional power flow; distribution line π equivalent model and dispersed generation

Hrčak ID:

112315

URI

https://hrcak.srce.hr/112315

Publication date:

20.12.2013.

Article data in other languages: croatian

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