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Title: Development of more accurate islanding detection algorithm for unbalanced and nonlinear load
Authors: Mishra P.P.
Bhende C.N.
Keywords: Islanding detection
Sequence component
Unbalanced and nonlinear load
Issue Date: 2017
Abstract: Islanding is a condition in which the distributed generation along with the local load starts operating independently when isolated from rest of the power system. Because of the adverse effect of island operation, islanding detection is a necessary requirement in distributed generation system and it must be detected accurately and quickly. In present scenario of power system, loads can be balanced, unbalanced as well as nonlinear. This paper presents a modification to the existing technique which explains the detection scheme for balanced load. However, when the method described in literature is applied to unbalanced and nonlinear load, it fails to maintain the accuracy in detection as specified for balanced load. The proposed modification states to extract the positive sequence voltage component and with the modification, the detection scheme is suitable for various loads and is successful in achieving the faster detection accuracy. � 2016 IEEE.
Appears in Collections:Research Publications

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