International Journal of Electrical, Electronics and Data Communication (IJEEDC)
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Statistics report
Apr. 2020
Submitted Papers : 80
Accepted Papers : 10
Rejected Papers : 70
Acc. Perc : 12%
Issue Published : 85
Paper Published : 1402
No. of Authors : 3795
  Journal Paper

Paper Title
A Decentralized Communication-Based Protection Scheme for Meshed Network

Abstract
The conventional over current protection system of the meshed distribution networks has not been able to accommodate the changes in the distribution network topology; as a nonselective tripping occurs. Furthermore, high penetration of inverter-based distributed generation makes changes in the level and direction of the short circuit current during the fault. This paper introduces a decentralized protection scheme, using a communication system between relays of each zone, it employs Discrete Wavelet Transform to extract the high frequency components, which exists at fault occurrence, and the directional characteristic of the superimposed reactive power flows during the fault, calculated by Hilbert Transform. The proposed protection scheme has been applied to the modified IEEE 14-bus meshed network, integrated with two inverter-based distributed generators. A realistic modelling of the system has been simulated using PSCAD/EMTDC software. The proposed protection algorithm has been modeled and tested using MATLAB software. Index Terms - Decentralized Protection, Discrete Wavelet Transform, Inverter-based Distributed Generation, Superimposed Reactive Power, Meshed Network.


Author - Nahil Shaker, Karim Hassan, Ashraf Megahed

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| Published on 2019-06-24
   
   
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