Results 41 to 50 of about 2,477 (219)

Impact Assessment of Hypothesized Cyberattacks on Interconnected Bulk Power Systems

open access: yes, 2018
The first-ever Ukraine cyberattack on power grid has proven its devastation by hacking into their critical cyber assets. With administrative privileges accessing substation networks/local control centers, one intelligent way of coordinated cyberattacks ...
Ginter, Andrew   +4 more
core   +1 more source

Optimal protection coordination of voltage-current time based inverse relay for PV based distribution system [PDF]

open access: yes, 2017
Distributed energy resources (DERs) are electricity source generator to meet small scale electricity requirement. DER is gaining much importance nowadays due to its high efficiency and zero emission.
Sujatha, B.C., Tejeswini, M.V.
core   +1 more source

Grid Fragility, Blackouts, and Control Co‐Design Solutions

open access: yesAdvanced Control for Applications, Volume 7, Issue 3, September 2025.
Hierarchical grid control and GRADIENTS categories. ABSTRACT The grid is undergoing a large‐scale transformation, including a significant reduction of synchronous generators, a high penetration of inverter‐based resources and renewables, substantial demand growth, new extra‐large loads, aging infrastructure and a concerning vulnerability to ...
Mario Garcia‐Sanz   +5 more
wiley   +1 more source

Kullback–Leibler Divergence‐Based Fault Detection Scheme for 100% Inverter Interfaced Autonomous Microgrids

open access: yesEnergy Science &Engineering, Volume 13, Issue 6, Page 2891-2900, June 2025.
ABSTRACT The development of a dependable and secure protection system is critical for further integration of renewable energy sources into electrical energy systems. To address the bidirectional power flow and limited fault current contribution of 100% inverter‐based microgrids, this article presents a differential fault detection scheme (DFDI) based ...
Ali Mallahi, Iman Sadeghkhani
wiley   +1 more source

Implementation of Optimal Protection Coordination for Microgrids with Distributed Generations Using Quaternary Protection Scheme

open access: yesJournal 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

Microgrid Protection through Adaptive Overcurrent Relay Coordination

open access: yesElectricity, 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

International White Book on DER Protection : Review and Testing Procedures [PDF]

open access: yes, 2011
This white book provides an insight into the issues surrounding the impact of increasing levels of DER on the generator and network protection and the resulting necessary improvements in protection testing practices.
Abdulhadi, Ibrahim Faiek   +7 more
core  

Fast Protection Scheme for Active Distribution Networks: Breaking Chains by Utilizing Auxiliary Relays

open access: yesJournal of Modern Power Systems and Clean Energy, 2020
Due to the swift expansion and the deployment of distributed generation, protection systems of active distribution networks are more expected to be fast.
Amin Yazdaninejadi   +2 more
doaj   +1 more source

Research on the Adaptive Protection Method for Distribution Networks With Inverter‐Type Distributed Power Supplies: Based on Short‐Circuit Impedance Calculation

open access: yesEngineering Reports, Volume 7, Issue 4, April 2025.
If the linear node voltage equation set obtained from the faulty composite sequential network is solved directly by linear transformation, it is not possible to accurately calculate and obtain the fault current and the voltage at the merging point of IIDG.
Zhuoran Song   +5 more
wiley   +1 more source

Advanced voltage relay design for distance relay coordination in power networks equipped with low‐inertia areas

open access: yesIET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
DR and OCR mis‐coordination challenges under the impact of DG. Abstract In modern power systems with high levels of distributed generation (DG), traditional protection schemes face challenges in ensuring reliable and efficient fault detection due to the complexities introduced by DG, particularly low‐inertia sources such as wind power.
Feras Alasali   +6 more
wiley   +1 more source

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