A1 Journal article (refereed), original research

Sensitivity analysis of a PLC-based DSSS anti-islanding system in power distribution grids

Open Access publication

Publication Details
Authors: Poluektov Anton, Pinomaa Antti, Romanenko Aleksei, Ahola Jero, Kosonen Antti
Publisher: Elsevier
Publication year: 2019
Language: English
Related Journal or Series Information: International Journal of Electrical Power and Energy Systems
Volume number: 113
Start page: 739
End page: 747
Number of pages: 9
ISSN: 0142-0615
eISSN: 1879-3517
JUFO-Level of this publication: 2
Open Access: Open Access publication
Location of the parallel saved publication: http://urn.fi/URN:NBN:fi-fe2019061720674


As smart grid applications, distributed generation, and microgrid technologies have become more widespread, new safety-related issues have arisen. Unintentional islanding is an example of a grid fault that may result in damage to electrical equipment and severe personal injuries. In this paper, an anti-islanding system employing power line communication (PLC) and direct-sequence spread spectrum (DSSS) modulation implemented with software-defined radios for continuous signaling is tested in a laboratory test setup. A concept of a fault detection algorithm is evaluated. A DSSS sensitivity analysis is carried out to investigate system’s performance against variation of a signal-to-noise ratio, and define optimal DSSS settings. The results of the analysis are interpreted, and conclusions are drawn. A transformer bypassing scheme allowing to increase the fault detection speed and throughput is introduced and tested, and the conditions of applicability are described. As a result of the study, recommendations for the system development are presented.

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Last updated on 2020-20-03 at 10:03