MAS Based Intelligent Protection Coordination Scheme for Distribution Network with Distributed Generation
Subject Areas : Power Engineering
Mahmoud Hojjati
1
,
Majid Tavoosi
2
*
,
Mohammad Reza Yousefi
3
,
Ghazanfar Shahgholian
4
,
Ali Reza seifi
5
1 - Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran.
2 - Department of Skills and Entrepreneurship, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
3 - Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran.|Smart Microgrid Research Center, Najafabad Branch, Islamic Azad University, Najafabad, Iran
4 - Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran.|Smart Microgrid Research Center, Najafabad Branch, Islamic Azad University, Najafabad, Iran
5 - Department of Electrical Engineering, Shiraz University, Shiraz, Iran
Keywords: Protection coordination, Distributed Generation (DG), Distribution Network (DN), Multi Agent System (MAS),
Abstract :
The rapid growth of grid-connected embedded distributed generations (DGs) is changing the operational characteristics of distribution networks (DNs). In order to implement DNs with DGs, some challenges should be faced, especially concerning protection issues, that may make conventional protection schemes ineffective. MAS techniques can enable the power grid to becomes smarter, reliable, selfhealing, and robust. Its decentralized nature and operational robustness make the MAS application a leading technology. Despite the fast, reliable and multi-purpose operation of MAS-based protection schemes, the inherent delay or failure of communication system must not affect the vital role of fault clearing, i.e., the ever-increasing DGs in DNs as well as network size increase has resulted in a heavy communication burden yielding to delay or even failure in communication. In this paper, an Intelligent protection algorithm is presented that protect the grid, when the connection between agents is lost, by using point-to-point communication between relay agents in the first layer of the MAS. Reduction of the agents used and no need to connect to the higher layers of the MAS are the benefits of this method. For simulation, 16 bus Test DN is used, that The results confirm the applicability of the proposed model for grid protection coordination.
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