A multi-criteria differential transformer relay based on fuzzy logic

Journal Article · Sun Oct 01 04:00:00 EDT 1995 · IEEE Transactions on Power Delivery

DOI:https://doi.org/10.1109/61.473379· OSTI ID:152902

Wiszniewski, A; Kasztenny, B ^[1]

---

1. Technical Univ. of Wroclaw (Poland). Dept. of Electrical Engineering

This paper presents a digital relay scheme for the primary protection of power transformers. A multi-criteria algorithm is developed based on fuzzy sets for the decision making part of the scheme. The cost of wrong decision-making part of the scheme. The cost of wrong decision-making and the amount of information inflow are used along with several standard criteria to improve the reliability of the protection. It is shown that the proposed scheme, if property tuned, can enhance the sensitivity and selectivity of the digital relay and mitigate problems associated with conventional relay schemes.

• OSTI ID: 152902
• Report Number(s): CONF-950103--
• Journal Information: IEEE Transactions on Power Delivery, Journal Name: IEEE Transactions on Power Delivery Journal Issue: 4 Vol. 10; ISSN 0885-8977; ISSN ITPDE5
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
EQUIPMENT PROTECTION DEVICES
FUZZY LOGIC
POWER SYSTEMS
RELAYS
TRANSFORMERS