Results 21 to 30 of about 303,443 (105)
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
doaj +1 more source
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
IET Generation, Transmission &Distribution, Volume 17, Issue 8, Page 1816-1826, April 2023., 2023 Abstract The gas turbine synchronous generators (GTSGs) are widely deployed as distributed generations (DGs) in countries with massive natural gas production owing to their low prices. However, due to the low inertia time constants of these synchronous‐based DGs, they are more susceptible to power grid faults which stands as a transient stability issue
Hossein Ebrahimi +2 more
wiley +1 more source
IET Generation, Transmission &Distribution, Volume 17, Issue 7, Page 1585-1600, April 2023., 2023 The contribution of this research is to simplify modelling of three common types of cyber‐attacks and its detection method. Finally a new index has been designed for the detection of different cyber‐attacks that employs wavelet analysis of the substation currents and energy of a signal which has been called cyber‐attack detection index (CADI ...
Mohammad Yousefi kia +2 more
wiley +1 more source
Journal of Electrical and Computer Engineering, 2020 The flexible operation of microgrids, along with the availability of distributed generation (DG) units, causes a variety of changes in short-circuit current levels, magnitudes, and directions, which has undesirable effects on the operation of protection ...
Panida Thararak, Peerapol Jirapong
doaj +1 more source
Low Computational Burden Adaptive Overcurrent Protection for Active Distribution Networks
International Transactions on Electrical Energy Systems, Volume 2023, Issue 1, 2023., 2023 Conventional distribution networks have evolved into active distribution networks due to the high penetration of distributed energy resources. These new networks have several protection issues; some are related to the high fault and load current variations due to the various operating conditions.
B. Grisales-Soto +3 more
wiley +1 more source
Differential Evolution with a Level‐Based Learning Strategy for Multimodal Optimization
International Journal of Intelligent Systems, Volume 2023, Issue 1, 2023., 2023 Multimodal optimization aims at efficiently finding multiple optimal solutions of a problem. Owing to the population‐based search mechanism, evolutionary algorithms (EAs) are becoming increasingly popular in solving multimodal optimization problems (MOPs).
Yuhui Zhang +4 more
wiley +1 more source
Ain Shams Engineering Journal, 2023 The increasing demands of electrical power have imposed a necessity to integrate renewable energy power sources (REPS) into electrical power networks. The presence of REPS within electrical distribution networks mandated an update in the settings of the ...
Fady Wadie +2 more
doaj +1 more source