Directional relays without voltage sensors for distribution networks with distributed generation: Use of symmetrical components

Petit, Marc; Pivert, Xavier Le; García-Santander, Luis

doi:10.1016/j.epsr.2010.04.006

Cited by 31 publications

(16 citation statements)

References 8 publications

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“…Furthermore, the Discrete-Wavelet transform was used in [19] to evaluate the symmetrical components with unbalanced and distorted waveforms in transient conditions. The advances also include the testing of new functionalities for the relays included in distribution systems [20]. The research in this direction is still open, with new emerging solutions such as the non-linear adaptive method proposed in [21] for the estimation of the symmetrical components in real-time.…”

Section: Introductionmentioning

confidence: 99%

100 Years of Symmetrical Components

Chicco

Mazza

2019

Energies

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28 June 2018 was the 100th anniversary of the first presentation on symmetrical components made by Charles LeGeyt Fortescue at the 34th Annual Convention of the American Institute of the Electrical Engineers in Atlantic City (NJ, USA). The introduction of the symmetrical component concept was immediately seen as a milestone for electrical system studies, and many applications have been developed during the ensuing years. Today, refined or advanced contributions to conceptual and practical aspects of electrical applications are still being proposed based on the powerful structure of symmetrical components. This paper recalls the most significant steps made in the electrical engineering field after the introduction of the symmetrical component theory, and indicates recent developments concerning the studies on electrical machines, harmonics and interharmonics in different applications, and the operation of power and distribution systems with distributed energy resources.

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Section: Introductionmentioning

confidence: 99%

100 Years of Symmetrical Components

Chicco

Mazza

2019

Energies

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“…However, the method has the adaptability problem in a wind power system because of the fast variation of the load current. Two kinds of directional relays based on a sequence component are presented in [8]: one calculates the ratio of the negative sequence component to the zero sequence component and identifies direction by comparing the ratio with a statistical boundary value; the other compares the values of the fifth harmonic of the zero sequence component with the positive sequence component to determine the fault direction. Both directional relays work well under ideal conditions.…”

Section: Introductionmentioning

confidence: 99%

Three-phase fault direction identification method for outgoing transmission line of DFIG-based wind farms

Fan

Song

Kang

et al. 2018

J. Mod. Power Syst. Clean Energy

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Doubly-fed induction generator (DFIG)-based wind farm has the characteristic of transient fault with low voltage ride through (LVRT) capability. A new three-phase fault direction identification method for the outgoing transmission line of the wind farm is presented. The ability of the new directional relay to differentiate between a three-phase fault in one direction or the other is obtained by using the increment of phase angle difference between the memory voltage signal and the fault current signal within a certain time, and using the amplitude variation of the fault current. It can be inferred that the fault current is supplied by the wind farm whether the phase angle differs or the current amplitude varies considerably. Different fault locations at the outgoing transmission line have been simulated by PSCAD/EMTDC to evaluate the reliability and sensitivity of the proposed technique. Results show that the new directional relay is of faster response when a three-phase fault occurs at the outgoing transmission line of a DFIG-based wind farm.

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“…Na referência [7] utiliza-se o ATP para modelagem de uma RD para avaliar o desempenho da rede considerando a natureza aleatória das faltas. Em [8], os autores apresentam dois algoritmos baseado em componentes simétricos da corrente de sequências zero, positivo e negativo, para proteção de relé de sobrecorrente direcional (do inglês Directional Overcurrent Relays -DOCR) na rede primária do alimentador com Geração Distribuída (GD) e em [9] apresenta-se um novo método para coordenar o relé DOCR instalado em uma RD em malha utilizando algoritmos evolutivos e programação linear. Em [10], apresenta-se uma visão geral da proteção de RD com interligação do GD e descreve a implementação de dispositivos de proteção como: relés, religadores, fusíveis, seccionalizadores e interruptores no EMTP.…”

Section: Introductionunclassified

Modeling and Simulation of the Protection of Distribution Feeders in ATP

Conceicao

Silva

2015

IEEE Latin Am. Trans.

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Abstract⎯ This article presents the modeling and simulation in the ATP (Alternative Transients Program)/MODELS of devices used in overcurrent protection of distribution networks such as reclosers , sectionalisers , fuses , digital relays and current transformers. A radial feeder with 63 buses was used in the study case. Numerous tests of short -circuits involving singlephase, two phases and three phases at various points of the feeder, were performed, with the purpose of validating the developed models and check the performance of the protection system. The results show the advantages of this type of modeling through which it is possible to evaluate the behavior of the power system against the operation of the protection and the protection front to diverse operating situations to which it is subjected. This study may contribute to the solution of problems of adjustment, coordination and analysis of the behavior of the distribution network using it for more elaborate models of power system components that are available in the ATP software.

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Directional relays without voltage sensors for distribution networks with distributed generation: Use of symmetrical components

Cited by 31 publications

References 8 publications

100 Years of Symmetrical Components

100 Years of Symmetrical Components

Three-phase fault direction identification method for outgoing transmission line of DFIG-based wind farms

Modeling and Simulation of the Protection of Distribution Feeders in ATP

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