Results 21 to 30 of about 41,335 (264)

Implementation of the Improved Active Frequency Drift Anti-Islanding Method into the Three-Phase AC/DC Converter with the LCL Grid Filter

open access: yesEnergies, 2022
The article presents a modified standard Active Frequency Drift (AFD) method used to detect unintentional island operation in converters generating electricity from renewable energy sources to the power grid.
Krzysztof Dmitruk, Andrzej Sikorski
doaj   +1 more source

A Multisize no Migration Island-Based Differential Evolution Algorithm With Removal of Ineffective Islands

open access: yesIEEE Access, 2022
The paper is a continuation of our previous research where a novel concept of multisize island model was proposed. Such multisize approach facilitates the design of island-based algorithms and brings such benefits as: improved fitness dynamics throughout
Aleksander Skakovski, Piotr Jedrzejowicz
doaj   +1 more source

Modelling of a Hydro Power Station in an Island Operation [PDF]

open access: yesLinköping Electronic Conference Proceedings, 2017
There is a strong focus on new renewable energy sources, such as, solar power, wind energy and biomass, in the con-text of reducing carbon emissions. Because of its maturity, hydropower is often overlooked. However, there is an era of hydro oriented research in improving many aspects of this well established technology.
Arndís Magnúsdóttir   +1 more
openaire   +3 more sources

Hierarchical Predictive Control of Microgrids in Islanded Operation

open access: yesIEEE Transactions on Automation Science and Engineering, 2017
This paper presents a hierarchical control architecture for the regulation of frequency and nodal voltages of a microgrid in islanded operation. Considering systems with both dispatchable and nondispatchable generation, as well as noncontrollable loads, the suggested approach allows to coordinate the MG devices in order to maintain the network ...
Alessio La Bella   +3 more
openaire   +3 more sources

Microgrid Spinning Reserve Optimization with Improved Information Gap Decision Theory

open access: yesEnergies, 2018
Distributed generation (DG) is an important method of energy generation that accelerates the decentralization process of centralized systems, and has been widely deployed in modern society due to its economical, sustainable, and environmentally friendly ...
Hong Zhang   +3 more
doaj   +1 more source

A Decentralized Passive Islanding Detection Method Based on the Variations of Estimated Droop Characteristics

open access: yesEnergies, 2021
A microgrid including distributed generators can operate connected to the main electrical network or in an isolated manner, referred to as island operation.
Juan Roberto Lopez   +3 more
doaj   +1 more source

An enhanced role for an energy storage system in a microgrid with converter-interfaced sources

open access: yesThe Journal of Engineering, 2014
An enhanced role for the energy storage system (ESS), strategically placed at the point of common coupling (PCC) of the microgrid with the utility grid, is proposed. During island operation, the ESS ensures that the frequency and magnitude of the voltage
Konstantinos O. Oureilidis   +2 more
doaj   +1 more source

An Optimal Scheduling Method of Shared Energy Storage System Considering Distribution Network Operation Risk

open access: yesEnergies, 2023
Shared energy storage systems (SESS) have been gradually developed and applied to distribution networks (DN). There are electrical connections between SESSs and multiple DN nodes; SESSs could significantly improve the power restoration potential and ...
Jiahao Chen   +5 more
doaj   +1 more source

A Small Wind Turbine Output Model for Spatially Constrained Remote Island Micro-Grids [PDF]

open access: yesTransNav, 2022
Modelling operation of the power supply system for remote island communities is essential for its operation, as well as a survival of a modern society settled in challenging conditions.
Dubravko Žigman   +2 more
doaj   +1 more source

Dual−Layer Distributed Optimal Operation Method for Island Microgrid Based on Adaptive Consensus Control and Two−Stage MATD3 Algorithm

open access: yesJournal of Marine Science and Engineering, 2023
Island microgrids play a crucial role in developing and utilizing offshore renewable energy sources. However, high operation costs and limited operational flexibility are significant challenges. To address these problems, this paper proposes a novel dual−
Zhibo Zhang   +5 more
doaj   +1 more source

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