Sensitivity analysis and stochastic approach in study of transient recovery voltage with presence of superconducting FCL

• Published in: 2011 IEEE Electrical Power and Energy Conference pp. 479 - 484
• Main Authors: Mohseni, A., Mohajer Yami, S., Shayegani Akmal, A. A.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01-10-2011
• Subjects: 230kV transmission line; Capacitance; circuit breaker; Circuit breakers; Circuit faults; EMTP-RV; fault current limiter; Impedance; Monte Carlo method; Poles and towers; Rate of Rise of Recovery Voltage (RRRV); short circuit level; superconducting; switching overvoltage; Transient analysis; Transient Recovery Voltage (TRV); Uncertainty
• ISBN: 1457704056; 9781457704055
• DOI: 10.1109/EPEC.2011.6070248

Due to the increased interconnection of networks and the growth in the use of new power plants, fault current levels in power system continue to rise. One of the viable solutions for handling this issue is the use of fault current limiters (FCL) to reduce the short circuit current so that the existing Circuit Breakers (CB) can still operate without any upgrade. High-temperature superconducting fault current limiters (SFCL) are a widely accepted FCL. In this paper, a stochastic approach has been used for assessment of the transient recovery voltages (TRV) induced across CB poles of simple test line equipped with SFCL considering the uncertainties associated with system parameters and sensitivity analysis of these parameters. By this method, not only the expected value of the TRV can be calculated, but the probability distribution of it can also be determined. The simulations have been done in EMTP-RV environment.