An adaptive protection method for the inverter dominated microgrid

Recently, many technical challenges of the microgrid, such as operation stability, energy management and relay protection, need to be met with the development of the smart gird. Protection is one of the most significant problems. In this paper, the issues related to the protection of microgrid are d...

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Bibliographic Details
Published in:	2011 International Conference on Electrical Machines and Systems pp. 1 - 5
Main Authors:	Ke Dang, Xin He, Daqiang Bi, Cunliang Feng
Format:	Conference Proceeding
Language:	English
Published:	IEEE 01-08-2011
Subjects:	Earth Fault currents Generators Grounding Impedance Power transformers Relays
Online Access:	Get full text
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Summary:	Recently, many technical challenges of the microgrid, such as operation stability, energy management and relay protection, need to be met with the development of the smart gird. Protection is one of the most significant problems. In this paper, the issues related to the protection of microgrid are discussed at first. Thus, after comparing the existing microgrid protection methods, the ideal structure and parameters of the study microgrid are given. Moreover, this paper presents a new protection strategy, which adaptively selects the different fault detection methods in the grid-connected mode and islanded mode of operation. Finally, the selectivity and reliability of the microgrid protection are improved by utilization of this new protection strategy.
ISBN:	9781457710445 1457710447
DOI:	10.1109/ICEMS.2011.6073457