Results 31 to 40 of about 1,165 (153)

Land Use as a Crucial Resource for Smart Grids—The ‘Common Good’ of Renewables in Distributed Energy Systems

open access: yesLand
The energy transition involves transforming electricity supply systems. Smart grids are resilient, polycentric systems consisting of integrated, self-governed Microgrids including distributed energy systems (DES).
Maarten Wolsink
doaj   +1 more source

Research on Large-Signal Stability Assessment Methods of DC Microgrids Based on Artificial Intelligence

open access: yes发电技术
ObjectivesDC microgrids are prone to the issue of large-signal stability due to the low inertia and constant power load characteristics. Traditional model-based methods involve complex calculations and are difficult to solve.
LIU Sucheng   +4 more
doaj   +1 more source

Digital Twin for Operation of Microgrid: Optimal Scheduling in Virtual Space of Digital Twin [PDF]

open access: yesEnergies, 2020
Due to the recent development of information and communication technology (ICT), various studies using real-time data are now being conducted. The microgrid research field is also evolving to enable intelligent operation of energy management through digitalization. Problems occur when operating the actual microgrid, causing issues such as difficulty in
Park, Hyang-A   +5 more
openaire   +2 more sources

Electrical Power Systems and Microgrid Technologies for Lunar Surface Missions A Review [PDF]

open access: yesThe Egyptian International Journal of Engineering Sciences and Technology
A number of space groups have been thinking about establishing a permanent, manned base on the moon in recent years. An installation of this type requires an incredibly dependable electrical power system in order to serve scientific equipment and ...
khaled wahdan   +3 more
doaj   +1 more source

Research on load frequency control of multi‐microgrids in an isolated system based on the multi‐agent soft actor‐critic algorithm

open access: yesIET Renewable Power Generation
Load variation, distributed power output uncertainty and multi‐microgrids network complexity have brought great difficulties to the frequency stability of the whole microgrid.
Li Long Xie   +5 more
doaj   +1 more source

State-Space Modeling and Stability Analysis of MMC-Based Distributed Generation Units in Islanded Microgrids

open access: yesMehran University Research Journal of Engineering and Technology
The study aims to incorporate Modular Multilevel Converters (MMCs) into islanded microgrids that are now dependent upon off-grid energy systems. As more renewable power sources are integrated into power microgrids, such as solar and wind power, the ...
Saeed Ahmad Rana, Haroon Rasheed
doaj   +1 more source

Novel Droop Control of Battery Energy Storage Systems Based on Battery Degradation Cost in Islanded DC Microgrids

open access: yesIEEE Access, 2020
This paper presents a new droop control method to reduce battery degradation costs in islanded direct current (DC) microgrids for multiple battery energy storage systems (BESSs).
Jin-Oh Lee   +3 more
doaj   +1 more source

A State-Space Model of an Inverter-Based Microgrid for Multivariable Feedback Control Analysis and Design [PDF]

open access: yesEnergies, 2020
In this work, a synchronous model for grid-connected and islanded microgrids is presented. The grid-connected model is based on the premise that the reference frame is synchronized with the AC bus. The quadrature component of the AC bus voltage can be cancelled, which allows to express output power as a linear equation for nominal values in the AC bus ...
Juan F. Patarroyo-Montenegro   +2 more
openaire   +2 more sources

Secondary Voltage Control in a Hybrid Microgrid [PDF]

open access: yesInternational Journal of Industrial Electronics, Control and Optimization, 2019
Compared to individual DC or AC microgrids, the Hybrid microgrids (HMGs) are more efficient and inexpensive due to eliminating of multiple DC-AC-DC conversions.
YousefReza Jafarian   +2 more
doaj   +1 more source

Secondary Frequency Control of Islanded Microgrid Based on Deep Reinforcement Learning

open access: yesZhongguo dianli
With the large-scale integration of distributed generation into microgrids, the volatility of renewable energy generation and system random disturbances pose significant threats to the frequency stability and operational control of islanded microgrids ...
Li WANG   +4 more
doaj   +1 more source

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