Results 11 to 20 of about 77 (68)
Microgrid Protection through Adaptive Overcurrent Relay Coordination
Electricity, 2021 The inclusion of distributed energy resources (DER) in Microgrids (MGs) comes at the expense of increased changes in current direction and magnitude.
Haneen Bawayan, Mohamed Younis
doaj +1 more source
IEEE Access, 2022 In the past decade, there has been unprecedented growth in distributed generation (DG) to cater to more load demand in the power grid. However, as the volume of these resources in the distribution network (DN) continues to increase, new challenges in ...
Suzana Pil Ramli +6 more
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New Overcurrent Relay Coordination Method Through Time Intervals to Enhance Microgrid Protection
IEEE Access, 2021 This paper presents a method to protect microgrids (MGs) through coordination of directional overcurrent relays (DOCRs). The new formulation is subjected to restrictions of pre-established time intervals to guarantee the primary and backup functions of ...
Yendry Gonzalez, Arturo Conde
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Optimal Protection Coordination Scheme for Radial Distribution Network Considering ON/OFF-Grid
IEEE Access, 2021 Technology advancement for renewable energy resources and its integration to the distribution network (DN) has garnered substantial interest in the last few decades. Integrating such resources has proven to reduce power losses and improve the reliability
Muhammad Usama +5 more
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Energy Science &Engineering, Volume 11, Issue 11, Page 4108-4127, November 2023., 2023 The use of distribution generators affects fault currents, leading to miscoordination between protection relays and causing constraints on network reliability. To tackle this issue, an adaptive protection scheme (APS) based on a modified pelican optimization algorithm (MPOA) and active database management system is proposed.
Mohamed Abdelhamid +2 more
wiley +1 more source
IET Generation, Transmission &Distribution, Volume 17, Issue 18, Page 4119-4133, September 2023., 2023 This paper puts forward a new optimization framework to deal with the optimal coordination of the protection devices and optimal allocation of the DGs and the protection devices simultaneously. To such aim, it is important to reflect the coordination between protection devices in the total objective function.
Seyed Salman Fatemi, Haidar Samet
wiley +1 more source
IET Generation, Transmission &Distribution, Volume 17, Issue 13, Page 2978-2995, July 2023., 2023 Abstract To handle the challenges attributed to the distributed generators, the protection system of distribution networks needs to be evolved. Recent protection schemes modify the standard characteristics of overcurrent relays, called non‐standard characteristics.
Tejas M. Vala +2 more
wiley +1 more source
Energies, 2023 Much attention has been paid to the optimized protection of microgrids (MGs) and active distribution networks (ADNs). However, the literature shows a research gap in proposing a hybrid scheme, utilizing the voltage-based and overcurrent-based relays ...
Ali Vafadar +3 more
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Postfault optimal islanding of smart grids using a reinforcement learning approach
IET Generation, Transmission &Distribution, Volume 17, Issue 11, Page 2471-2482, June 2023., 2023 The paper presents a method for optimal configuration of smart grids following the occurrence of short circuit faults. Due to restoration delays, the aim of the proposed approach is to save maximum possible number of loads by forming stable islands and serving loads with distributed energy resources (DERs).
Hamed Rezapour, Sadegh Jamali
wiley +1 more source
IET Generation, Transmission &Distribution, Volume 17, Issue 11, Page 2497-2522, June 2023., 2023 Here, an improved efficient algorithm is applied to solve the coordination issue between distance relays and directional overcurrent relays (DOCRs). Abstract Here, an improved version of an African vultures optimization algorithm (AVOA), known as MAVOA is applied to solve the coordination issue between distance relays and directional overcurrent relays
Ahmed Korashy +3 more
wiley +1 more source