Consumer power demand is an ever increasing component in distribution networks. A solution to meet this bridge between conventional source availability and load demands is using microgrids. The microgrid is an assortment of loads and distributed generators (DGs). The dynamicity of microgrids is a key challenge for protection engineers. The purpose of this paper is to develop a central protection system (CPS) for a microgrid with fuzzy based monitoring and graph algorithms based protection control features. Hence the CPS provides suitable overcurrent relay coordination to the microgrid which may cause minimum portion of the network disconnection. © 2017 The Authors. Published by Elsevier Ltd.

Angalaeswari S

Electrical

School of Electrical Engineering

Chennai Campus

Jamuna K

Gnana Swathika O V

Febin Daya J L

Krishnan V.A

Fulltext

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Energy Procedia

Decentralization of electric power is possible with the penetration of distributed generators (DGs) in the microgrid (MG) network. Reconfiguration of MG poses a key challenge in identifying suitable protection schemes for varying the topology of the network. In this paper, a central protection center (CPC) is incorporated whose function is to monitor the MG continuously, identify fault occurrence, and locate the exact faulted branch. The proposed Prim-aided Dijkstra algorithm executed continuously in the CPC is responsible for identifying the current topology of the network and aids in identifying the shortest route from the faulted point to the nearest operating source. The CPC is also responsible for adaptively varying the settings of the relays existing in the shortest path identified based on their selectivity levels. This heuristic algorithm is validated on IEEE 21-bus and 40-bus MG test systems for all possible topologies and faults. The proposed algorithm is capable of clearing the fault by disconnecting minimum portion of the network and ensuring continuity of supply to a majority of loads. © 2013 IEEE.

IEEE Journal of Emerging and Selected Topics in Power Electronics

Prims-Aided Dijkstra Algorithm for Adaptive Protection in Microgrids

An intelligent micro grid controller system with over current protection capability in both the grid-connected and the islanded modes of operation is proposed. To achieve the above strategy a model of small portion of distribution network as if it were a micro grid will be developed and considered. The processor based relays that provide over current protection functions in addition to performing control, measurement, and communication functions will be suitably employed. © 2015 IEEE.

2015 International Conference on Computational Intelligence and Communication Networks (CICN)

Communication Assisted Overcurrent Protection of Microgrid

International Journal of Computational Intelligence Systems

Robust Speed Control of an Induction Motor Drive using Wavelet-fuzzy based Self-tuning Multiresolution Controller

Fuzzy Decision and Graph Algorithms Aided Adaptive Protection of Microgrid

Journal	Data powered by TypesetEnergy Procedia
Publisher	Data powered by TypesetElsevier BV
ISSN	1876-6102
Open Access	Yes