Results 111 to 120 of about 169 (151)
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Research on Adaptive Reclosing of Distribution Network based on Signal Injection
2021 IEEE 4th Advanced Information Management, Communicates, Electronic and Automation Control Conference (IMCEC), 2021Without discriminating the nature of faults, the traditional three-phase reclosing performs after set time, so the failure of reclosing will result in a secondary impact on the system. In order to avoid the damage of secondary impact caused by reclosing onto a permanent fault and increase the successful rate of reclosing, the application of adaptive ...
Xiaomeng Wu, Tao Zhang
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Improving Recloser-Fuse Coordination With Self-Adaptive Adjustment
Anais do Congresso Brasileiro de Automática 2020, 2020The use of advanced communication and computation technologies, together with the need to make systems more secure and reliable, pushes for the development of new methods of protection that take into consideration new features. However, the advances must reconcile with analog equipment already present in the protection systems, such as fuses.
Antonio E. C. Momesso, Eduardo N. Asada
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Adaptive Reclosing Method for Flexible HVDC Transmission Lines
2020 4th International Conference on HVDC (HVDC), 2020With the development of HVDC transmission, half-bridge modular multilevel converter with hybrid HVDC circuit breakers becomes one of the mainstream configuration schemes in HVDC flexible system. However, the existing reclosing strategies have some defects, such as lack of selectivity and adoption of long time delay, due to the inability to determine ...
Mengxi Wang +2 more
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Application of adaptive reclosers to automatic distribution systems
Proceedings of First International Caracas Conference on Devices, Circuits and Systems, 2002This paper presents a discussion on several issues related to adaptive reclosers. It is shown, by using a realistic example, that adaptive reclosers should be installed in distribution systems with automatic switching capabilities in order to optimize their protective function. In particular, the case of primary circuits with automatic transfer systems
L.G. Perez +4 more
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A wavelet packet based method for adaptive single-pole auto-reclosing
Journal of Zhejiang University SCIENCE C, 2010We present a new algorithm for adaptive single-pole auto-reclosing of power transmission lines using wavelet packet transform. The db8 wavelet packet decomposes the faulted phase voltage waveform to obtain the coefficients of the nodes 257, 259 to 262. An index is then defined from the sum of the energy coefficients of these nodes.
Sadegh Jamali, Navid Ghaffarzadeh
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An Adaptive Reclosing Scheme for Preserving Dynamic Security in Low-Inertia Microgrids
IEEE Transactions on Smart Grid, 2019Conventional reclosing schemes with fixed dead times can threaten the dynamic security of low-inertia microgrids ( $\mu$ Gs) in case of permanent faults. This paper proposes an adaptive reclosing approach for restoring the interrupted feeder operation and maintaining the dynamic security within the shortest time.
Saeed Teimourzadeh +3 more
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Adaptive Reclosing Scheme for flexible Multi-Terminal DC Distribution Grid
2021 6th Asia Conference on Power and Electrical Engineering (ACPEE), 2021For flexible medium-voltage DC distribution grid based on overhead line, this paper proposes an adaptive reclosing scheme. First, the characteristic differences of capacitive coupling voltage between the instantaneous fault and the permanent fault are analyzed.
Xiuyan Wei +4 more
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Adaptation of superconducting fault current limiter to high-speed reclosing
Physica C: Superconductivity, 2009Abstract Using a high temperature superconductor, we constructed and tested a model superconducting fault current limiter (SFCL). The superconductor might break in some cases because of its excessive generation of heat. Therefore, it is desirable to interrupt early the current that flows to superconductor.
T. Koyama, S. Yanabu
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Research on phase-by-phase adaptive reclosing sequence for transmission lines
2019 IEEE 8th International Conference on Advanced Power System Automation and Protection (APAP), 2019There is no feasible method can be used to discriminate between permanent fault and transient fault after the three phase circuit breakers are tripped. Randomly reclosing onto a permanent fault may have a negative impact on the system. For the purpose of solving this problem, a phase-by-phase adaptive reclosing sequence for single-phase grounding fault
Zhenfeng LIANG, Kerun WANG, Wenzheng LI
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Communication-Aided High-Speed Adaptive Single-Phase Reclosing
IEEE Transactions on Power Delivery, 2013A new communication-aided high-speed single-phase reclosing algorithm is proposed in this paper for transposed transmission lines based on predicted and measured voltage of faulted phase. Analytical analysis based on the distributed line model is performed to derive an equation which can be used to predict the faulted phase voltage after arc extinction
M. R. D. Zadeh, R. Rubeena
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