Results 31 to 40 of about 45,422 (237)

Virtual synchronous motor based-control of Vienna rectifier

open access: yesEnergy Reports, 2020
Vienna rectifiers are widely used because of their advantages of high power-factor, low voltage stress on the power semiconductor switches, high power density, stable output voltage, low current harmonic content, and good economics. And gradually applied
Xiangwu Yan   +5 more
doaj   +1 more source

A multivariable optimal energy management strategy for standalone DC microgrids [PDF]

open access: yes, 2014
Due to substantial generation and demand fluctuations in standalone green microgrids, energy management strategies are becoming essential for the power sharing and voltage regulation purposes. The classical energy management strategies employ the maximum
Maheri, A.   +11 more
core   +1 more source

An Overview of Hydroelectric Power Plant: Operation, Modeling, and Control [PDF]

open access: yesJournal of Renewable Energy and Environment, 2020
Renewable energy provides twenty percent of electricity generation worldwide. Hydroelectric power is the cheapest way to generate electricity today. It is a renewable source of energy and provides almost one-fifth of electricity in the world.
Ghazanfar Shahgholian
doaj   +1 more source

RETRACTED: Control of Bidirectional DC-DC Converter for Micro-Energy Grid’s DC Feeders' Power Flow Application

open access: yesInternational Journal of Renewable Energy Development, 2022
Referred to by: Retraction notice to ‘Control of Bidirectional DC-DC Converter for Micro-Energy Grid’s DC Feeders' Power Flow Application' IJRED 11(2), 533-546 International Journal of Renewable Energy Development, 12(6).
Muhammad Hammad Saeed   +2 more
doaj   +1 more source

Tumbling Magnetic Microrobots for Targeted In Vivo Drug Delivery in the GI Tract

open access: yesAdvanced Robotics Research, EarlyView.
We introduce a microrobot design and integrated system for on‐demand targeted drug release in the gastrointestinal tract. The microrobot has an embedded magnet for actuation with external magnetic fields and is visualized in real time using ultrasound. It has two drug release ports sealed with a thermally sensitive wax. Local heating of the wax using a
Aaron C. Davis   +7 more
wiley   +1 more source

Microgrid: modelling and control [PDF]

open access: yes, 2010
This thesis presents a complete model of a typical microgrid, together with identification of the required control strategies in order to operate this new type of power system.
Alotibe, Mohammad
core  

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

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

Performance Evaluation of Fuel Cell and Microturbine as Distributed Generators in a Microgrid [PDF]

open access: yes, 2009
This paper presents dynamic models of distributed generators (DG) and investigates dynamic behaviour of the DG units within a microgrid system. The DG units include micro turbine, fuel cell and the electronically interfaced sources.
Mohamed , Azah   +2 more
core  

Counter‐Halide‐Directed Ion‐Pair Passivation Enables High‐Performance Wide‐Bandgap Perovskites for Perovskite/Cu(In,Ga)Se2 Tandem Solar Cells

open access: yesAdvanced Energy Materials, EarlyView.
Counter‐halide engineering of fluorobenzylammonium surface passivators reveals bromide as the optimal partner for wide‐bandgap perovskites. FBz–Br effectively stabilizes halide‐vacancy‐related defects and undercoordinated Pb sites, suppresses non‐radiative recombination, and enhances surface hydrophobicity and thermal stability.
Huyen Tran   +17 more
wiley   +1 more source

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