Results 21 to 30 of about 2,626 (138)

Adaptive Time Delay Strategy for Reliable Load Shedding in the Direct-Current Microgrid

open access: yesIEEE Access, 2020
This paper proposes a practical and reliable decentralized load shedding strategy to protect the integrity of the direct-current (DC) microgrid. The proposed strategy utilizes time delays that automatically adapt to the DC microgrid operating conditions ...
Jafar Mohammadi, Firouz Badrkhani Ajaei
doaj   +1 more source

DC-based microgrid: Topologies, control schemes, and implementations

open access: yesAlexandria Engineering Journal, 2023
This article presents a state-of-the-art review of the status, development, and prospects of DC-based microgrids. In recent years, researchers’ focus has shifted to DC-based microgrids as a better and more feasible solution for meeting local loads at the
Babangida Modu   +3 more
doaj   +1 more source

Design and Line Fault Protection Scheme of a DC Microgrid Based on Battery Energy Storage System

open access: yesEnergies, 2018
Currently, the Direct-Current (DC) microgrid has been gaining popularity because most electronics devices require a DC power input. A DC microgrid can significantly reduce the AC to DC energy conversion loss.
Abdul Motin Howlader   +3 more
doaj   +1 more source

Mixed-potential-function-based large-signal stability analysis of DC microgrid with constant power loads

open access: yesFrontiers in Energy Research, 2023
With the development of power grid technology, a large number of constant power loads (CPL) are introduced into the power grid system. The negative damping characteristic of CPL poses a great challenge to the stability of power grid under the condition ...
Pengyu Wang   +5 more
doaj   +1 more source

Reliability evaluation of an aggregate power conversion unit in the off-grid PV-battery-based DC microgrid from local energy communities under dynamic and transient operation

open access: yesEnergy Reports, 2022
In a rural/local energy community (LEC), a PV-battery-based DC microgrid (MG) normally operates at the off-grid/islanded mode. At this off-grid operation mode, the reliability of power converters in both the PV system and the battery energy storage ...
Tsai-Chi Kuo   +5 more
doaj   +1 more source

Analysis of the Application of Current Transfomer in Low-voltage Flexible DC Microgrid

open access: yes南方能源建设, 2019
[Introduction] Low voltage flexible DC microgrid is a bridge between DC devices such as energy storage, electric car and mid-voltage DC power grid. As the DC technology develops and many more DC devices connecting to the grid, it′s feasible and necessary
ZHANG Minghan, LU Zikai
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

Research on Hybrid Microgrid Based on Simultaneous AC and DC Distribution Network and Its Power Router

open access: yesEnergies, 2019
Under the dual pressure of environmental pollution and energy crisis, the global energy consumption structure reform deepens unceasingly and the concept of energy internet has developed rapidly.
Xinnan Gai   +3 more
doaj   +1 more source

Self‐Sustaining Sensing Systems: Integration Strategies and Signal–Power Matching in Energy‐Harvesting Electronics

open access: yesAdvanced Science, EarlyView.
Energy‐harvesting‐integrated sensors couple ambient energy conversion with sensing, processing, and wireless communication. This review organizes recent progress through integration architectures and operating principles, revisiting co‐packaged, monolithic, and co‐functional designs together with always‐on, event‐driven, and multi‐modal sensing modes ...
Taehyun Park   +5 more
wiley   +1 more source

Transition Metal Compounds as Thermochromic Materials: Classification, Properties, Limitations, and Applications

open access: yesEcoEnergy, EarlyView.
This review systematically examines how different transition metal compounds—such as binary and multinary metal oxides, halides, sulfides, and salts—exhibit thermochromism based on the d‐electron configurations of their transition metal cations. It focuses on three main mechanisms of thermochromism: phase transition, charge transfer, and bandgap change.
Jie Wang   +5 more
wiley   +1 more source

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