An adaptive protection scheme for advanced series compensated (ASC) transmission lines

• Published in: IEEE transactions on power delivery Vol. 13; no. 2; pp. 414 - 420
• Main Authors: Girgis, A.A., Sallam, A.A., El-Din, A.K.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.04.1998; Institute of Electrical and Electronics Engineers
• Subjects: Applied sciences; Capacitors; Control systems; Disturbances. Regulation. Protection; Electrical engineering. Electrical power engineering; Electrical power engineering; Exact sciences and technology; Flexible AC transmission systems; Impedance; Power networks and lines; Power system protection; Power system relaying; Power system transients; Power transmission lines; Thyristors; Transmission lines; Alternating current line; Electric energy transportation; Static reactive compensator; Adaptive system; Unsteady state; Kalman filtering; Digital protection; Series compensation; Flexibility
• ISSN: 0885-8977; 1937-4208
• DOI: 10.1109/61.660908

This paper presents an adaptive protection scheme for advanced series compensated (ASC) transmission lines. The scheme is based on Kalman and adaptive Kalman filters. The adaptive scheme utilizes the differences in the transient current signals for faults encountering and not encountering the ASC to determine the fault location with respect to the ASC and the faulted phases. Equations to determine the line impedance to the fault on these lines are developed. The adaptive scheme is tested for faults along and outside the protected line using EMTP simulated data.