Comparison between traditional single‐phase auto reclosing and adaptive technique based on harmonic content measurement

Dias, Ozenir; Tavares, Maria Cristina

doi:10.1049/iet-gtd.2016.0849

Cited by 35 publications

(20 citation statements)

References 18 publications

(9 reference statements)

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“…In terms of adaptive protection, a very important issue in a smart grids environment, reference Dias and Tavares (2017a), shows an approach which a digital harmonic filter is implemented to improve the performance of a distance relay. Smart grids demand smarter protection systems, and the comparative results shown in Dias and Tavares (2017b) reinforce the efficiency of the use of adaptive techniques opposite to the use of traditional protection methods. The advancement of technology in energy distribution allows new approaches to be used for protection systems as is shown in Faria et al (2018).Additionally, reference Renzo and Fabian (2018) proposes a faulted phase selection algorithm for distance protection applied to half-wavelength power transmission lines, with the purpose of considering these lines characteristics in a more proper way than fault selection algorithms used in conventional relays.…”

Section: Power System Protectionmentioning

confidence: 83%

Real-Time Simulators Applied to Brazilian Power Systems: A Review

Oliveira

García

et al. 2020

J Control Autom Electr Syst

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This paper presents a review on real-time simulators and their use applied to power systems in Brazil. The review comprises most of the current research made in institutions/enterprises that own real-time simulators as well as the application trends of related technologies, considering both conferences and journals published papers. It is observed that several Brazilian universities have simulators in real-time and that the publications in journals have been increased, which shows that the learning curve of the Brazilian research institutions has led to an improvement in the quality of the publications. It is also important to emphasize that the analysis of real systems in most publications indicates a trend and a demand for studies with simulators in real time, to solve problems of companies of the electric sector. Related with works that use real systems in their simulations, several publications were generated in the context of R&D projects. This shows that real-time simulators are very relevant tools for studies on power systems of companies in the electricity sector, aligning scientific research and the provision of highly specialized services.

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Section: Power System Protectionmentioning

confidence: 83%

Real-Time Simulators Applied to Brazilian Power Systems: A Review

Oliveira

García

et al. 2020

J Control Autom Electr Syst

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“…Furthermore, according to [34,35], a secondary arc model was established as follows, and it was added in the simulation experiments…”

Section: Simulation Resultsmentioning

confidence: 99%

Online parameter determination based adaptive single‐phase reclosing scheme for wind‐powered outgoing lines with shunt reactors

Chao

2019

IET Renewable Power Generation

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As the only power output channel of wind farms, wind-powered outgoing lines carry the risk of reclosing to faults as an applied single-phase reclosing scheme recloses the outgoing line after a fixed time without distinguishing transient and permanent faults. Although various transient-fault identification (TFI) methods were proposed for conventional power transmission lines with shunt reactors, they can be hardly utilised on wind-powered outgoing lines with shunt reactors due to the influence of outgoing line complex working conditions and wind farms inconsistent output power. In this study, reactive power was calculated using the instantaneous power algorithm to obtain the equivalent reactance of the outgoing line faulty phase shunt reactor. Then, a TFI method for the outgoing lines with shunt reactors based on online parameter determination was proposed, a relevant adaptive single-phase auto-reclosing (ASPAR) scheme was established. Finally, the validity and feasibility of the proposed TFI method and ASPAR scheme were verified by conducting simulation experiments on the software PSCAD/ EMTDC. The experiments confirmed that the proposed ASPAR scheme can achieve immunity to changes in fault location and transition resistance, and are therefore suitable for inconsistent output power of wind farms and complex working conditions of outgoing lines.

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“…The secondary arc extinction is the beginning of the recovery voltage stage. Dias and Tavares [1] have proposed many methods to distinguish the arc extinction. Especially the secondary arc has larger odd harmonics and uncertain characteristics.…”

Section: Fault Identification and Adaptive Autoreclosing Schemementioning

confidence: 99%

“…Majority of power system failures are transmission line failures. Higher voltage level has more probability of single line to ground (SLG) fault [1]. Most of SLG faults are temporary mainly caused by atmospheric discharges.…”

Section: Introductionmentioning

confidence: 99%