Distributed Generator Status Estimation for Adaptive Feeder Protection in Active Distribution Grids
English
Margossian, Harag[University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Capitanescu, Florin[University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Sachau, Jürgen[University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Computer Science and Communications Research Unit (CSC) >]
22nd International Conference on Electricity Distribution (CIRED)
June 2013
[en] Distributed Generation ; Adaptive Protection ; State Estimation
[en] This paper proposes a framework for adaptive feeder protection in distribution grids with a high amount of distributed generators (DGs) installed. The scheme adapts the feeder protection relay settings according to the changes in the connection status of those DGs that have a significant impact on the fault current. The core of the method consists in the identification of the connection status of the DGs using an iterative modified state estimation (SE) program. The approach is illustrated using a realistic 31-node distribution network model.
SnT
National Research Fund, Luxembourg (C11/SR/1278568)