Results 11 to 20 of about 24,092 (222)

Power management enhancement and smoothing DC voltage using integrated BESS and SMES in Off-grid hybrid AC/DC microgrid based on ILCs [PDF]

open access: yesScientific Reports
The random and variable generation of wind and solar energies, particularly in DC microgrids, leads to undesirable fluctuations in the DC link voltage, consequently decreasing the power quality on the DC side.
Sara Mahmoudi Rashid   +1 more
doaj   +2 more sources

DC microgrid protection

open access: yesProceedings of the 4th International Conference on Information Management & Machine Intelligence, 2022
DC microgrids have gained increasing attention over the decades. Compared to AC micro grids, they have higher power delivery ability, higher efficiency, and fewer control levels. Although DC microgrid has better performance in many areas, they still face a significant challenge in protection. That is due to the feature of DC fault with no zero-crossing
Gagandeep Singh   +4 more
openaire   +3 more sources

Fault Management in DC Microgrids: A Review of Challenges, Countermeasures, and Future Research Trends

open access: yesIEEE Access, 2021
The significant benefits of DC microgrids have instigated extensive efforts to be an alternative network as compared to conventional AC power networks. Although their deployment is ever-growing, multiple challenges still occurred for the protection of DC
Zulfiqar Ali   +7 more
doaj   +1 more source

DC Microgrid Planning, Operation, and Control: A Comprehensive Review

open access: yesIEEE Access, 2021
In recent years, due to the wide utilization of direct current (DC) power sources, such as solar photovoltaic (PV), fuel cells, different DC loads, high-level integration of different energy storage systems such as batteries, supercapacitors, DC ...
Fahad Saleh Al-Ismail
doaj   +1 more source

A Review on Challenges in DC Microgrid Planning and Implementation

open access: yesJournal of Modern Power Systems and Clean Energy, 2023
DC microgrids are gaining more attention with the increased penetration of various DC sources such as solar photovoltaic systems, fuel cells, batteries, etc., and DC loads.
Kolampurath Jithin   +4 more
doaj   +1 more source

Stability and Control Aspects of Microgrid Architectures–A Comprehensive Review

open access: yesIEEE Access, 2020
Self-governing small regions of power systems, known as “microgrids”, are enabling the integration of small-scale renewable energy sources (RESs) while improving the reliability and energy efficiency of the electricity network.
Moudud Ahmed   +3 more
doaj   +1 more source

Resilience and Stability Analysis of Distributed Secondary Controllers in DC Microgrids Under Cyber Attacks and Communication Delays

open access: yesIEEE Access, 2023
The DC microgrid systems include power electronic converters with information and communication technology. The performance of the DC microgrids will be determined by how effectively these converters are controlled.
Smitha Joyce Pinto   +3 more
doaj   +1 more source

Suppression of Second-Order Harmonic Current for Droop-Controlled Distributed Energy Resource Converters in DC Microgrids [PDF]

open access: yes, 2020
Droop-controlled distributed energy resource converters in dc microgrids usually show low output impedances. When coupled with ac systems, second-order harmonics typically appear on the dc-bus voltage, causing significant harmonic currents at the ...
Caldognetto, Tommaso   +3 more
core   +1 more source

Flexible interconnection of DC microgrid cluster based on isolated bidirectional DC–DC converter

open access: yesSystems Science & Control Engineering, 2021
To make full use of the power of the microgrid and improve the reliability of the power supply system, a flexible interconnection control strategy for the DC microgrid cluster based on isolated bidirectional DC–DC converters is proposed in this paper ...
Hongwan Yang, Yu Zhang, Peng Wang
doaj   +1 more source

Protection in DC microgrids: a comparative review

open access: yesIET Smart Grid, 2018
A direct current (DC) microgrid has become a superior power system in recent years due to the development of DC loads and higher efficiency of DC systems.
Navid Bayati   +3 more
doaj   +1 more source

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