Results 51 to 60 of about 2,664 (218)

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

Hierarchical Control in Microgrid

open access: yes, 2019
It is required to utilize several control loops together to increase reliability and performance of microgrids. The current and voltage magnitudes, frequency and angle information, active and reactive power data provide the involved feedback for normal ...
Ersan Kabalci, Kabalcı, Ersan
core   +1 more source

Enhancing Microgrid Protection Through Adaptive Decentralized Relay Coordination: A Solution to Blinding and Sympathetic Tripping

open access: yesIEEE Access
Integrating Distributed Energy Resources into microgrids modifies the network’s system parameters and causes it to exhibit behaviour, particularly during fault conditions.
Sujatha Balasubramanian   +2 more
doaj   +1 more source

Research on Fault Current Controller of DC Microgrid

open access: yes南方能源建设, 2023
[Introduction] With the rapid development of AC/DC distribution networks and distributed generation technology, the role of DC microgrids in distribution networks is becoming increasingly important and will become an important component of future ...
Cong LIN, Xiangfeng LI, Fang GUO
doaj   +1 more source

An Active Protection Scheme for Islanded Microgrids [PDF]

open access: yes15th International Conference on Developments in Power System Protection (DPSP 2020), 2020
The paper proposes a relatively simple active protection strategy incorporating controllers of the inverter for islanded microgrids dominated by inverter based distributed generators (IBDGs) that can overcome well-understood shortcomings in traditional overcurrent protection schemes applied to weak islanded systems.
Khan, Md Asif Uddin   +3 more
openaire   +3 more sources

New‐Generation Integrated Devices: Multiple‐Energy Utilization and Integration Systems Based on Perovskite Photovoltaics

open access: yesEcoEnergy, EarlyView.
This review highlights emerging integrated energy systems based on perovskite photovoltaics, including PSC–thermoelectric, photovoltaic–electrochemical, self‐charging, and building‐integrated architectures. By coupling multiple energy conversion and storage pathways, these multifunctional platforms enable enhanced solar utilization, improved stability,
Yihuai Huang   +10 more
wiley   +1 more source

Review of microgrid protection strategies: current status and future prospects

open access: yes, 2022
A microgrid is a developed form of a distribution system, which is integrated with a set of different types of distributed generation (DG) to supply local demand.
Alhadrawi, Zaid; Universiti Tun Hussein Onn Malaysia   +2 more
core   +3 more sources

Rate of Change of Direct-Axis Current Component Protection Scheme for Inverter-Based Islanded Microgrids

open access: yesIEEE Access, 2023
Rapid growth in the utilization of the inverter-interfaced distributed energy resources (IIDERs) in microgrids has brought new challenges in the network protection area. Microgrid protection specifically becomes a concern during operation in the islanded
Abdolhamid Farshadi   +4 more
doaj   +1 more source

Governing Positive Energy Districts: The Role of Legitimation and Identity Across Residential and Industrial Contexts

open access: yesEnvironmental Policy and Governance, EarlyView.
ABSTRACT Increasing electricity demand from data centres, industrial applications, electric vehicles and domestic heating is creating pressure to develop electricity systems in many parts of the world, but especially in Western countries. In response to challenges such as grid congestion, interconnection queues and climate‐related hazards, network ...
Jussi Valta   +3 more
wiley   +1 more source

Protection of microgrid with renewable energy sources

open access: yes, 2023
This thesis proposes a microgrid protection framework to mitigate different protection issues such as dynamics in fault current magnitude, protection blinding, false tripping, islanding detection, dc-link protection, and reconnection issues in the ...
Muhammad Waseem Altaf (17600391)
core   +1 more source

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