Authors: Velimirović, Lazar 
Janjić, Aleksandar
Velimirović, Jelena 
Affiliations: Mathematical Institute of the Serbian Academy of Sciences and Arts 
Title: Fault Location and Isolation in Power Distribution Network Using Markov Decision Process
Journal: 2019 14th International Conference on Advanced Technologies, Systems and Services in Telecommunications, TELSIKS 2019 - Proceedings
Conference: 14th International Conference on Advanced Technologies, Systems and Services in Telecommunications, TELSIKS 2019; Faculty of Electronic Engineering, University of Nis; Serbia; 23 October 2019 through 25 October 2019
Issue Date: 1-Oct-2019
Rank: M33
ISBN: 978-1728-1087-80
DOI: 10.1109/TELSIKS46999.2019.9002345
Precise fault location in distribution network is one of the most important applications among intelligent monitoring and outage management tasks used for realization of self-healing networks. The data gathered from various intelligent sensors installed throughout the power system could be utilized for smart approaches to locating faults, helping the system restoration, reducing outage time and improving system reliability. Since the distribution network is radial, with multiple laterals connected to the main feeder, faults at various locations may lead to the same voltages and currents observed at the substation. In other words, using the substation measurements to calculate the fault location, multiple failure states are possible. In this paper, Markov decision process is used as a tool for the determination of the faulted feeder section and its isolation from the grid. The algorithm is based on transition probabilities among states obtained from intelligent sensors and tested on a radial distribution network with 3 sectionalizers.
Keywords: Fault location | Markov decision process | Smart grid
Publisher: IEEE
Project: Development of new information and communication technologies, based on advanced mathematical methods, with applications in medicine, telecommunications, power systems, protection of national heritage and education 
Research and development of energy efficient and environment friendly polygeneration systems based on renewable energy sources utilization 

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