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Hardware implementation of enhanced generator loss of excitation protection scheme

Kumar, D Nitesh and Nagaraja, R and Khincha, HP (2017) Hardware implementation of enhanced generator loss of excitation protection scheme. In: National Power Systems Conference, NPSC 2016, 19-21 December 2016, Bhubaneswar, India, pp. 1-6.

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Official URL: https://doi.org/10.1109/NPSC.2016.7858856


Loss of excitation (LOE) protection is one of the important generator protection scheme used to detect abnormal operating condition resulting from loss of field voltage. The conventional protection scheme is prone to incorrect operation during stable swings. Several enhancements to the conventional protection scheme are discussed in literature to improve the reliability of LOE protection scheme. This paper discusses the implementation aspects of one of the enhanced loss of excitation and power swing blocking scheme, to identify stable power swings (SPS). The performance of the enhanced scheme is validated by implementing it on a Numerical Relay Development Environment. The simulation results suggest that the modified scheme along with power swing blocking scheme does not add significant burden on the existing numerical hardware and the scheme can be implemented with modifications only in the firmware of the relay.

Item Type: Conference Paper
Publisher: Institute of Electrical and Electronics Engineers Inc.
Additional Information: The Copyright of this article belongs to the Institute of Electrical and Electronics Engineers Inc.
Keywords: Loss of excitation; Numerical relay development environment; Power swing blocking; Stable power swing; Electric excitation; Electric generators; Firmware; Hardware; Abnormal operating conditions; Conventional protection schemes; Development environment; Hardware implementations; Loss of excitation; Loss of excitation protection schemes; Power swing blocking; Stable power swings; Electric equipment protection
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 13 Jun 2022 06:49
Last Modified: 13 Jun 2022 06:49
URI: https://eprints.iisc.ac.in/id/eprint/73319

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