An investigation into the use of adaptive setting techniques for improved distance back-up protection

Journal Article · Mon Apr 01 04:00:00 EST 1996 · IEEE Transactions on Power Delivery

DOI:https://doi.org/10.1109/61.489332· OSTI ID:244809

Stedall, B; Moore, P; Johns, A ^[1]; Goody, J ^[2]; Burt, M ^[3]

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1. Univ. of Bath (United Kingdom). School of Electronic and Electrical Engineering
2. National Grid Co., Guildford (United Kingdom). Technology and Science Div.
3. Scottish Power, Glasgow (United Kingdom). Transmission Div.

Changes in power system operating conditions adversely affect the reach point accuracy of distance relays. This paper will discuss adaptation of the settings of distance relays within an integrated digital hierarchical protection system for the optimization of relay performance. Specific reference will be made to adaptation of the zone 3 setting to ensure optimal relay performance over a wide variety of operating conditions. Results illustrating the performance of adaptive methods compared to conventional fixed settings will be presented for an application study of the North Wales 400 kV network.

• OSTI ID: 244809
• Report Number(s): CONF-950727--
• Journal Information: IEEE Transactions on Power Delivery, Journal Name: IEEE Transactions on Power Delivery Journal Issue: 2 Vol. 11; ISSN 0885-8977; ISSN ITPDE5
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
EHV AC SYSTEMS
EQUIPMENT PROTECTION DEVICES
EXPERT SYSTEMS
FUZZY LOGIC
NEURAL NETWORKS
OPERATION
RELAYS