Results 121 to 130 of about 169 (151)
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Effect of adaptive reclosing on turbine-generator shaft torsional torques
IEEE Transactions on Power Systems, 1994This paper presents the adaptive reclosing technique as a new concept to reduce the high torsional torques to which turbine-generator shafts might be subjected during high-speed reclosing of multi-phase power system faults. In this context, investigations have been conducted on a large turbine-generator model for various multi-phase faults.
A.M. El-Serafi, S.O. Faried
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An adaptive single phase reclosing algorithm based on the mathematical morphology
2010 5th International Conference on Critical Infrastructure (CRIS), 2010Single-phase Auto-reclosing (SPAR) is widely used on EHV/UHV transmission lines to improve power system reliability. However, reclosing on to a permanent fault can adversely affect the system stability and damage generators and other equipment connected to the line.
null Tao. Zheng +3 more
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Adaptive Three-Phase Reclosing of Distribution Network Using the Injected Signal
2020 10th International Conference on Power and Energy Systems (ICPES), 2020An adaptive three-phase reclosing strategy is proposed for distribution network, using the injected signal by putting additional power on secondary ports of the voltage transformer. After distribution network three-phase tripping, the strategy injects a voltage signal before reclosing time.
Liao Liao +4 more
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Adaptive Comprehensive Auto-Reclosing Scheme for Shunt Reactor-Compensated Transmission Lines
IEEE Transactions on Power Delivery, 2019After a tripping of a transmission line, if the fault is transient, faulty arc may be extinguished in three different kind of periods: initial, middle and ending period. Existing adaptive auto-reclosing (AAR) schemes cannot cover all kind of situations, which seriously affects application of those AAR schemes.
Chao Xie, Fengting Li
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A New Approach to the Calculation of Reclosing Time for Adaptive Auto-reclosure
2010 Asia-Pacific Power and Energy Engineering Conference, 2010Adaptive reclose can remarkably enhance power system reliability. Rapid and accurate calculation of reclosing time proves to be difficult. This paper presents a stochastic calculus approach to this problem, deduces formulae to calculate reclosing time.
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High speed adaptive auto reclosing of 765 kV transmission lines
2012 11th International Conference on Environment and Electrical Engineering, 2012This paper proposes a new adaptive auto reclosing scheme for extra high voltage transmission lines. The performance of an auto reclosing scheme depends not only on power system behavior and transmission lines characteristic but also secondary arc current.
Hassan Abniki, Saeed Nateghi
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Adaptive auto-reclosing based on DER connectivity data with IEC 61850
2014 IEEE PES General Meeting | Conference & Exposition, 2014Most faults in the overhead distribution networks are temporary in nature. The protection system is therefore designed to open the line in an attempt to clear the fault and then automatically reclose to reconnect the circuit once the fault has cleared.
Dmitry Ishchenko +3 more
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Design of an online adaptive auto-reclose algorithm for HV transmission lines
2006 IEEE Power India Conference, 2006This paper proposes an adaptive auto-reclose scheme for high voltage transmission lines. It presents application of wavelet transform in identification of transient and permanent faults by processing the fault generated high frequency voltage transients. It can also be utilised to determine adaptive reclosure time with capturing arc extinction time.
M. Sanaye-Pasand, A. Kadivar
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Intrinsic Time Decomposition Based Adaptive Reclosing Technique for Microgrid System
2020The conventional reclosing system generally follows the prefixed operating time to close the breaker followed by any transient fault. In a microgrid system with a storage facility, the uninterrupted power supply can be provided with the help of a storage system for a short time period.
Shubham Ghore +2 more
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Adaptive single pole auto-reclosing using discrete wavelet transform
European Transactions on Electrical Power, 2010This paper proposes a new algorithm for adaptive single pole auto-reclosing (SPAR) using discrete wavelet transform (DWT). The faulted phase voltage signal is captured at a sampling rate of 2.5 kHz. The sym8 wavelet function is used to decompose the signal into level 1 and to define an index function (INDF), which is obtained from the sum of absolute ...
Sadegh Jamali, Navid Ghaffarzadeh
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