A New Impedance-Based Main and Backup Protection Scheme for Active Distribution Lines in AC Microgrids

Nobakhti, Seyyed Mohammad; Ketabi, Abbas; Shafie‐khah, Miadreza

doi:10.3390/en14020274

Cited by 8 publications

(4 citation statements)

References 28 publications

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“…In , a high-impedance fault detection method based on variational mode decomposition was proposed, where the non-linear characteristics of high-impedance faults were modeled. In addition, in Nobakhti et al (2021), protection algorithms were proposed for main and backup protection in LV microgrid lines, but their operations have not been studied for high-impedance faults. Moreover, the performance of the schemes was not evaluated in MV microgrids and cable lines.…”

Section: Frontiers In Energy Researchmentioning

confidence: 99%

Advanced Protection for the Smart Grid

Nabab Alam,

Khurshaid,

Yen Shih

et al. 2023

Frontiers Research Topics

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Frontiers is more than just an open access publisher of scholarly articles: it is a pioneering approach to the world of academia, radically improving the way scholarly research is managed. The grand vision of Frontiers is a world where all people have an equal opportunity to seek, share and generate knowledge. Frontiers provides immediate and permanent online open access to all its publications, but this alone is not enough to realize our grand goals. Frontiers journal seriesThe Frontiers journal series is a multi-tier and interdisciplinary set of openaccess, online journals, promising a paradigm shift from the current review, selection and dissemination processes in academic publishing. All Frontiers journals are driven by researchers for researchers; therefore, they constitute a service to the scholarly community. At the same time, the Frontiers journal series operates on a revolutionary invention, the tiered publishing system, initially addressing specific communities of scholars, and gradually climbing up to broader public understanding, thus serving the interests of the lay society, too. Dedication to qualityEach Frontiers article is a landmark of the highest quality, thanks to genuinely collaborative interactions between authors and review editors, who include some of the world's best academicians. Research must be certified by peers before entering a stream of knowledge that may eventually reach the public -and shape society; therefore, Frontiers only applies the most rigorous and unbiased reviews. Frontiers revolutionizes research publishing by freely delivering the most outstanding research, evaluated with no bias from both the academic and social point of view. By applying the most advanced information technologies, Frontiers is catapulting scholarly publishing into a new generation. What are Frontiers Research Topics?Frontiers Research Topics are very popular trademarks of the Frontiers journals series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area.

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Section: Frontiers In Energy Researchmentioning

confidence: 99%

Advanced Protection for the Smart Grid

Nabab Alam,

Khurshaid,

Yen Shih

et al. 2023

Frontiers Research Topics

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“…In Wang et al (2019), a high-impedance fault detection method based on variational mode decomposition was proposed, where the non-linear characteristics of high-impedance faults were modeled. In addition, in Nobakhti et al (2021), protection algorithms were proposed for main and backup protection in LV microgrid lines, but their operations have not been studied for high-impedance faults. Moreover, the performance of the schemes was not evaluated in MV microgrids and cable lines.…”

Section: B Protective Strategy-based Schemesmentioning

confidence: 99%

A protection scheme based on impedance for LV and MV lines in microgrids with high-impedance fault detection capability

Nobakhti

Ketabi

2023

Front. Energy Res.

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Microgrid properties including bidirectional power flow in feeders, fault level decrease in the islanded mode, and intermittent nature of distributed generators (DGs) result in the malfunctioning of microgrid conventional protection schemes. In the present article, a protection scheme based on impedance is suggested for fault detection in LV and MV overhead and cable distribution lines in both grid-connected and islanded modes. To determine a fault detection index, new suggested equivalent circuits for doubly fed lines are applied. Relay location data and magnitude of positive sequence voltage of the other end of the line are used. It is simulated by PSCAD and MATLAB software in order to evaluate its performance and approve its validity. This scheme can detect even high-impedance faults in both grid connected and islanded modes in LV and MV overhead and cable distribution lines. In addition, it is robust against load and generation uncertainty and network reconfigurations. Low sampling rate and minimum data exchange are among the advantages of the proposed scheme.

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“…[93] Dewadasa, J.M et al [94] deliberated an impedance protection scheme for detecting and protecting microgrids. Reference [95] entails work on distance relays through the wavelet transform (WT) technique for perceiving disturbances.…”

Section: Impedance Based Protection or Distance Based Protectionmentioning

confidence: 99%

A Comprehensive Review of Microgrids, Control Strategies, and Microgrid Protection Schemes

Srinivas¹,

Modi²

2022

ECS Trans.

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For the greater part of a century, the world has moved to sustainable energy production, with increased dependence on renewable energy resources to meet growing energy demand. Reserves of conventional sources are rapidly depleting, with an environmental crisis due to profligate consumption. Distributed generation through renewable sources and microgrids have proved as sustainable alternatives. Microgrids provide versatile topologies with dispersed generation and provision for expansion. However, the nonconventionality of microgrids pose challenges and the conventional control and protection strategy have proven unsuitable. This paper attempts to be a review of microgrids, challenges, and existing protection schemes. The first segment of this paper presents the definition and overview of the microgrid market scenario. The next segment discusses microgrid classification and control strategies, following which challenges, and protection schemes are reviewed. The paper concludes with an overview of relay coordination, optimization algorithms, and an outline of few international microgrid standards and codes.

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A New Impedance-Based Main and Backup Protection Scheme for Active Distribution Lines in AC Microgrids

Cited by 8 publications

References 28 publications

Advanced Protection for the Smart Grid

Advanced Protection for the Smart Grid

A protection scheme based on impedance for LV and MV lines in microgrids with high-impedance fault detection capability

A Comprehensive Review of Microgrids, Control Strategies, and Microgrid Protection Schemes

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