Results 1 to 10 of about 1,635,837 (95)
Adaptive Single-Pole Auto-Reclosing Scheme Based on Secondary Arc Voltage Harmonic Signatures [PDF]
Energies, 2021 This paper presents an advanced adaptive single-pole auto-reclosing (ASPAR) scheme based on harmonic characteristics of the secondary arc voltage. For analysis of the harmonics, short-time Fourier transform (STFT), which is a universal signal processing tool for transforming a signal from the time domain to the frequency domain, is utilized.
Joon Han, Chul-Moon Lee, Chul-Hwan Kim
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Adaptive Overhead Transmission Lines Auto-Reclosing Based on Hilbert–Huang Transform [PDF]
Energies, 2020 This paper presents a reliable and fast index to detect the instant of arc extinction for adaptive single-pole automatic reclosing (ASPAR). The proposed method is a simple technique for ASPAR on shunt compensated transmission lines using the Hilbert–Huang Transform (HHT). The HHT method is a combination of the empirical mode decomposition (EMD) and the
Arman Ghaderi Baayeh, Navid Bayati
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IET Smart GridABSTRACT By focussing on the limitations of fixed dead time (DT) in conventional reclosing methods, this paper highlights its significant adverse impact on transient stability of distributed energy resources (DERs) in microgrid. This vulnerability is particularly pronounced in systems with low inertia, arising from renewable energy ...
Hamed Aghabeigi +2 more
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IET Generation, Transmission &Distribution, Volume 17, Issue 19, Page 4248-4257, October 2023., 2023 An optimal negative sequence suppression strategy without phase‐locked loop (PLL) based on the control of clustered new energy power station is proposed. This strategy achieves effective suppression of negative sequence current during open‐phase operation without additional devices. Abstract In the context of extremely uneven sources and loads in China,
Zhenxing Li +5 more
wiley +1 more source
IET Generation, Transmission &Distribution, Volume 17, Issue 1, Page 1-16, January 2023., 2023 This paper comprehensively reviews different control schemes that are commonly used for compensating the fault current in resonant grounded (RG) power distribution systems. The existing control schemes are discussed in terms of the model used during the controller design process, loop structures, control block diagrams, and performance analysis ...
Warnakulasuriya Sonal Prashenajith Fernando +4 more
wiley +1 more source
IET Generation, Transmission &Distribution, Volume 16, Issue 16, Page 3333-3348, August 2022., 2022 Abstract The basis of traveling wave‐based fault location methods is to extract the arrival times of transient signals in the power network. In this paper, a new method for extracting the traveling wave arrival times is presented. For this purpose, the aerial modes of three‐phase voltage signals are extracted and two sequential sliding windows of ...
Davod Rezaei +2 more
wiley +1 more source
A review of single phase adaptive auto-reclosing schemes for EHV transmission lines [PDF]
Protection and Control of Modern Power Systems, 2019 Abstract Statistics shows that transients produced by lightning or momentary links with external objects, have produced more than 80% of faults in overhead lines. Reclosing of circuit breaker (CB) after a pre-defined dead time is very common however reclosing onto permanent faults may damage the power system stability and aggravate severe
Waqar Ahmad Khan, Tianshu Bi, Ke Jia
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On recognition of multiple power quality disturbance events in electricity networks
IET Generation, Transmission &Distribution, Volume 16, Issue 9, Page 1697-1713, May 2022., 2022 Abstract Effective power quality disturbance (PQD) events recognition is important for electricity network operation. This paper proposes an improved methodology for detecting and classifying multiple PQD events, which may simultaneously occur in the electricity network.
Vinh Hao Le +3 more
wiley +1 more source
A novel traveling wave arrival time detection method in power system
IET Generation, Transmission &Distribution, Volume 16, Issue 6, Page 1151-1165, March 2022., 2022 Abstract This paper proposes a high‐speed and accurate method for extracting the arrival times (ATs) of traveling waves (TWs) in the power system that can be used for fault location applications and transmission line protection. The proposed method is based on the expression of the traveling wave as the exponentially damped component superimposed on ...
Davod Rezaei +2 more
wiley +1 more source
A quick fault location and isolation method for distribution network based on adaptive reclosing
IET Generation, Transmission &Distribution, Volume 16, Issue 4, Page 715-723, February 2022., 2022 Abstract Feeder automation is important to improve the reliability of power supply for distribution network. Existing voltage‐time feeder automation scheme exists the problems of long fault processing time and the upstream switches of the fault point need to tolerate fault current twice and the upstream sections need to experience two short time power ...
Wei Zhang +4 more
wiley +1 more source