Results 51 to 60 of about 4,412,019 (245)

A novel protection strategy for DC microgrid considering communication failure

open access: yesEnergy Reports, 2023
DC microgrid has become an important part of supporting “carbon peaking, carbon neutralization” and building a low-carbon energy system. However, the short-circuit current of the DC microgrid rises rapidly and has a great impact, threatening the normal ...
Weiliang Zhang, Hui Zhang, Na Zhi
doaj   +1 more source

A local measurement-based protection scheme for DER integrated DC microgrid using Bagging Tree [PDF]

open access: yesIranian Journal of Electrical and Electronic Engineering, 2022
In recent years, DC microgrid has attracted considerable attention of the research community because of the wide usage of DC power-based appliances. However, the acceptance of DC microgrid by power utilities is still limited due to the issues associated ...
Shankarshan Prasad Tiwari, Ebha Koley
doaj  

Tradeoffs between AC power quality and DC bus ripple for 3-phase 3-wire inverter-connected devices within microgrids [PDF]

open access: yes, 2011
Visions of future power systems contain high penetrations of inverters which are used to convert power from dc (direct current) to ac (alternating current) or vice versa.
Roscoe, Andrew   +8 more
core   +4 more sources

A combined mathematical morphology and extreme learning machine techniques based approach to micro-grid protection

open access: yesAin Shams Engineering Journal, 2019
This work introduces a smart differential protection scheme for a microgrid system using a nonlinear signal transformation named as ‘mathematical morphology (MM)’. Here, the mathematical morphology is used as a feature extraction technique.
Manohar Mishra   +2 more
doaj   +1 more source

Overview of microgrid

open access: yes, 2020
The gradual decrement of fossil fuels, low energy efficiency and environmental problems met all over the world has led to several power system researches.
Mahdavi Tabatabaei, Naser   +2 more
core   +1 more source

Short-Circuit Analysis of DER-Based Microgrids in Connected and Islanded Modes of Operation

open access: yesEnergies, 2021
Since microgrids should be able to smoothly operate in two distinct modes—grid-connected and islanded, their fault currents can widely fluctuate depending on the operational mode. When the microgrid is connected to the grid, the highest fault current, by
Nikola Simic   +2 more
doaj   +1 more source

Grid Forming Inverter With Increased Short-Circuit Contribution to Address Inverter-Based Microgrid Protection Challenges

open access: yesIEEE Open Journal of the Industrial Electronics Society
Substantial differences in fault levels between grid-tied and islanded modes is one of the primary challenges of microgrid protection. During grid-tied mode, the bulk grid provides significant short-circuit, while during islanded operation the short ...
Maximiliano F. Ferrari   +2 more
semanticscholar   +1 more source

Microgrid architectures, control and protection methods

open access: yes, 2019
This book presents intuitive explanations of the principles of microgrids, including their structure and operation and their applications. It also discusses the latest research on microgrid control and protection technologies and the essentials of ...
Mahdavi Tabatabaei, Naser   +3 more
core   +1 more source

Review of protection aspects of microgrid devices [PDF]

open access: yes, 2021
A microgrid is required to provide reliable, quality and efficient supply of both electricity and heat demands to its customers when operates either in autonomous or in grid-connected modes.
Ashoke Kumar Basu, Basu, Ashoke Kumar
core   +1 more source

Transient Modeling and Analysis of VSC Based DC Microgrid During Short Circuit Fault

open access: yesIEEE Access, 2019
The application of distributed renewable energy (DER) drives the development of DC microgrid based on voltage source converter (VSC). And short circuit fault protection is a significant challenge for the development of VSC based DC microgrid.
Heng Nian, Liang Kong
doaj   +1 more source

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