Results 11 to 20 of about 3,783 (143)

Enhancing distribution generator impact mitigation using an adaptive protection scheme based on modified pelican optimization algorithm and active database management system

open access: yesEnergy 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

Analysis the securable operation and protection coordination indices on multi‐objective sitting and sizing of synchronous distributed generations on distribution networks

open access: yesIET Generation, Transmission &Distribution, Volume 17, Issue 9, Page 2169-2181, May 2023., 2023
• Sitting and sizing of synchronous distributed generations (SDGs) in the distribution network (DN) constrained to maintain the protection coordination of overcurrent relays (OCRs), • Simultaneous modelling of operation, voltage security, economic and protection coordination indices in the planning of SDGs in the DN,• Eliminating the protection re ...
Hossien Shad   +2 more
wiley   +1 more source

A new protection algorithm for tackling the impact of fault‐resistance and cloud energy storage on coordination of recloser‐fuse protection

open access: yesIET Generation, Transmission &Distribution, Volume 17, Issue 8, Page 1827-1835, April 2023., 2023
This paper is aimed at recloser‐fuse protection in CESS employed multi‐microgrid distribution systems for improving the fuse saving task and mitigating the fault resistance effects. In this way, after applying the conventional recloser‐fuse protection scheme, a new scheme is presented to improve the performance of the system in presence of CESS and ...
Amin Yazdaninejadi, Hossein Ebrahimi
wiley   +1 more source

A probabilistic approach for optimal operation of wind‐integrated power systems including UPFC

open access: yesIET Renewable Power Generation, Volume 17, Issue 3, Page 706-724, 24 February 2023., 2023
Abstract The optimal location and setting of the unified power flow controller (UPFC) along with power plant generators' output parameters to enhance power systems reliability in the presence of uncertain variables are determined in this paper. For this purpose, the expected power not served (EPNS) is used as a reliability index based on the total ...
Saeed Rezaeian‐Marjani   +4 more
wiley   +1 more source

Low Computational Burden Adaptive Overcurrent Protection for Active Distribution Networks

open access: yesInternational 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

Optimal adaptive protection of smart grids using high‐set relays and smart selection of relay tripping characteristics considering different network configurations and operation modes

open access: yesIET Generation, Transmission &Distribution, Volume 16, Issue 24, Page 5084-5116, December 2022., 2022
Abstract Much attention has been paid to optimizing smart grids (SGs) and microgrids (MGs) protection schemes. The SGs’ operation in different operating modes (especially grid‐connected and islanded conditions) and various system configurations (such as the outage of each of the distribution generations) adversely influence the protection system.
Amir Hossein Ataee‐Kachoee   +2 more
wiley   +1 more source

Optimal communication‐aided protection of meshed smart grids considering stability constraints of distributed generations incorporating optimal selection of relay characteristics

open access: yesIET Renewable Power Generation, Volume 16, Issue 11, Page 2313-2337, 17 August 2022., 2022
Abstract The optimized protective systems for smart grids and microgrids have received much attention in recent years. However, besides other selectivity constraints, less attention has been paid to synchronous generators’ stability concerns. The stability challenges are intensified in meshed grids compared to radial configurations.
Hamidreza Aghaei, Hamed Hashemi‐Dezaki
wiley   +1 more source

Two‐stage planning of synchronous distributed generations in distribution network considering protection coordination index and optimal operation situation

open access: yesIET Renewable Power Generation, Volume 16, Issue 11, Page 2338-2356, 17 August 2022., 2022
Abstract This paper presents economic planning of synchronous distributed generations (SDGs) constrained to protection and operation indices in the distribution network. The proposed scheme has a two‐stage formulation. In the first stage, optimal protection coordination (OPC) is modelled in the first phase in a network without SDGs.
S. Mohsen Sadeghi   +2 more
wiley   +1 more source

Microphysiological system for studying contractile differences in young, active, and old, sedentary adult derived skeletal muscle cells

open access: yesAging Cell, Volume 21, Issue 7, July 2022., 2022
Novel platform to study age‐related differences in skeletal muscle response to electrical stimulation using a 3 dimensional microphysiological system D MPS that incorporates cells derived from well phenotyped adults characterized by age and physical activity.
Shelby Giza   +7 more
wiley   +1 more source

An adaptive virtual impedance fault current limiter for optimal protection coordination of islanded microgrids

open access: yesIET Renewable Power Generation, Volume 16, Issue 8, Page 1719-1732, 8 June 2022., 2022
Abstract Fault currents of inverter‐interfaced distributed generators (IIDGs) depend on inverter controllers. Thus, IIDGs fault currents are different than those of synchronous‐based DGs, both from the magnitude and waveshape perspectives. In the event of short‐circuit faults, droop‐based IIDGs switch between a voltage source and a current source ...
Talal Elemamali Sati, Maher A. Azzouz
wiley   +1 more source

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