Research on Wide-Area Protection and Control Scheme for Closed-Loop Distribution Network

Zhang, Anlong; Li, Yan; Huang, Yan; Huang, Fuquan; Liu, Zijun

doi:10.1109/powercon.2018.8602026

Cited by 3 publications

(6 citation statements)

References 4 publications

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“…Equation ( 6) is derived based on the assumption that a fault occurs in the I distribution line in Figure 1. If a fault occurs in the J distribution line, it can also be derived in the same way as in Equation (7).…”

Section: Detection Methods Of Fault Sectionmentioning

confidence: 99%

“…A detailed description of this method is presented in a previous report [1]. If a faulty line is detected, the fault length from source to fault point is calculated through Equation ( 6) for the I distribution line fault or Equation (7) in the case of the J-distribution line fault. Subsequently, the fault sections are detected using Equations ( 6) and (7), and the CBs at the fault sections are opened.…”

Section: New Protection Scheme In Loop Distribution System Considerin...mentioning

confidence: 99%

“…The systems considered are composed of a radial loop transmission system and a radial underground distribution system. In another work [7], a wide area protection and control scheme based on information sharing was proposed for closed-loop distribution systems. It includes wide-area protection control devices and integrated distribution terminals.…”

Section: Introductionmentioning

confidence: 99%

“…Herein, the issue concerning protection in a closed-loop distribution system with DG is addressed. The DG has not been considered in previous works [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. In one study [1], the load after the fault point in the distribution line could experience outage because of the operation of the tie switch, without considering the fault section.…”

Section: Introductionmentioning

confidence: 99%

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New Protection Scheme in Loop Distribution System with Distributed Generation

Seo¹

2020

Energies

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Loop distribution systems are increasingly used for reasons such as increased distributed generation (DG) and increased demand for a reliable and high-quality power supply. Because the loop distribution system involves bidirectional power flow, the method for protection of the radial distribution system cannot be applied. Therefore, a protection method is proposed herein for loop distribution systems. In this study, the existence of DG is also considered. According to the proposed method, the fault point is estimated on the basis of the equivalent circuit of the distribution system. Then, the fault section is determined and separated from the distribution system. The separation of DG is determined depending on whether the frequency and voltage are maintained within the steady state ranges. The proposed method is modelled and verified using the Electromagnetic Transients Program. Simulations according to the fault location are performed and analyzed. The results show that the method accurately determines the fault section so that normal power can be supplied to the healthy sections in the distribution system.

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Section: Detection Methods Of Fault Sectionmentioning

confidence: 99%

Section: New Protection Scheme In Loop Distribution System Considerin...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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New Protection Scheme in Loop Distribution System with Distributed Generation

Seo¹

2020

Energies

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“…A smart grid can provide benefits such as self-healing, which is one of the most important features for making a network "smart" (El-Ghareeb et al, 2017;Zhang et al, 2018). This concept refers to the ability of the distribution network to recover from a disturbance, isolating a problem, restoring loads in the shortest possible time, and reducing the number of customers affected (Elgenedy et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Uma Revisão Da Literatura Sobre Técnicas De Inteligência Artificial Aplicadas a Redes Inteligentes De Autocura/ a Review of Literature on Artificial Intelligence Techniques Applied to Self-Healing Smart Grids

Alves

Santos

Rodrigues

et al. 2020

BJD

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The development of self-healing in smart grids is an attractive research topic. The application of artificial intelligence (AI) techniques for this purpose has been studied recently, and works published in this area show the effectiveness of AI. This article's purpose is to conduct a literature review of research articles published in recent years between 2014 and 2019, with the main theme related directly to self-healing and AI. Compared to the total number of articles published in smart grids, there is a

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Novel self-adjusted full-line current protection strategy for small resistance grounding distribution network

Yan,

Ao,

Liu

et al. 2024

Chin. J. Electr. Eng.

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The existing current break protection cannot achieve full-line current protection and may lose its protection capability.Therefore, this study proposes a self-adjusted full-line current protection strategy based on a double-layer criterion. The first layer of the criterion adopts the adaptive adjustment threshold as the setting value to realize full-line fault monitoring, which is not affected by the system operation mode and fault type. The second layer is used to locate the fault section of the line and improve the selectivity of the protection strategy. Considering the difficulty in accurately identifying high-resistance ground faults using current protection, an identification method based on compound power is proposed by analyzing the zero-sequence network of the system. Simulation results show that the proposed protection strategy can realize full-length line protection and the effective identification of high-resistance ground faults and is not affected by the system load variation and fault type.

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Research on Wide-Area Protection and Control Scheme for Closed-Loop Distribution Network

Cited by 3 publications

References 4 publications

New Protection Scheme in Loop Distribution System with Distributed Generation

New Protection Scheme in Loop Distribution System with Distributed Generation

Uma Revisão Da Literatura Sobre Técnicas De Inteligência Artificial Aplicadas a Redes Inteligentes De Autocura/ a Review of Literature on Artificial Intelligence Techniques Applied to Self-Healing Smart Grids

Novel self-adjusted full-line current protection strategy for small resistance grounding distribution network

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