A protection coordination scheme for active distribution networks

Author

Belloni, Federico ; Chiumeo, Riccardo ; Gandolfi, Chiara ; Villa, Alberto

Author_Institution

Ricerca sul Sistema Energetico - RSE s.p.a., Milan, Italy

fYear

2012

fDate

4-7 Sept. 2012

Firstpage

1

Lastpage

6

Abstract

New problems concerning the distribution grid protection system arise from the large diffusion of installed distributed energy resources. In particular, unwanted trips, unwanted island operations and worsening of power quality are the main issues coming from the interactions among active networks and grid protections. A possible new protection scheme, which can be employed in active networks, is proposed and discussed in the paper. Logic selectivity is implemented introducing communications among grid and distributed generator systems protections. Digital simulations confirm the suitability of the proposed solution for a large set of grid faults.

Keywords

distribution networks; power grids; power system protection; power system simulation; active distribution networks; active networks; digital simulations; distributed energy resources; distributed generator systems protections; distribution grid protection system; grid faults; grid protections; logic selectivity; power quality; protection coordination scheme; protection scheme; Circuit faults; Delay; Density estimation robust algorithm; Fault currents; Generators; Relays; Substations; Active networks; Distributed generators; Grid protections; Logic selectivity; Protections coordination;

fLanguage

English

Publisher

ieee

Conference_Titel

Universities Power Engineering Conference (UPEC), 2012 47th International

Conference_Location

London

Print_ISBN

978-1-4673-2854-8

Electronic_ISBN

978-1-4673-2855-5

Type

conf

DOI

10.1109/UPEC.2012.6398658

Filename

6398658