Results 101 to 110 of about 6,578,394 (152)
Energy Science &Engineering, EarlyView.Small‐scale biogas upgrading can improve methane quality but remains financially unattractive to individual rural households. Community‐scale implementation substantially lowers energy costs, demonstrating that economies of scale are critical to making purified biogas a viable clean‐cooking option in Tanzania.
Emmanuel Nsekela +5 more
wiley +1 more source
Power flow calculation of hybrid AC/DC power systems
, 2012 Multi-terminal HVDC systems have recently become an attractive option for interconnection of isolated AC systems such as offshore wind farms and oil platforms to asynchronous large AC systems.
A. Kargarian +11 more
core +1 more source
A Comprehensive Review of Fault‐Current Limiter Technologies for Smart and Resilient Power Systems
Energy Science &Engineering, EarlyView.This review compares superconducting, solid‐state, and hybrid fault‐current limiters (FCLs) for modern alternating current, direct current, and hybrid grids. It shows that optimal FCL selection depends on fault characteristics, network configuration, voltage level, protection coordination, and resilience requirements rather than on a universally ...
Abdelrahman Farghly +5 more
wiley +1 more source
A NOVEL CONTROL STRATEGY FOR SERIES-SHUNT POWER QUALITY COMPENSATOR [PDF]
, 2015 Advancement and extensive use of power electronic devices such as, fast switching uncontrolled/controlled convertors, invertors and cyclo-converters, high voltage power convertors used in HVDC, high voltage drives in traction system, arc furnaces, modern
PATIL, DADGONDA +3 more
core +1 more source
Energy Science &Engineering, EarlyView.A consistent 3 GW hybrid solar–wind configuration was assessed across five GCC locations, revealing substantial regional differences in energy yield and economic performance. Saudi Arabia and Oman achieved the highest generation and lowest LCOE, while the systems delivered substantial CO2 emission reductions across the region.
Ammar Al Sawafi +8 more
wiley +1 more source
A Full-Controlled Bidirectional Dual-Stage Interleaved Converter for Interfacing AC and DC Power Grids [PDF]
Power grids are progressing, and the possibility of incorporating DC grids toward hybrid AC/DC grids is gaining increasing relevance, as several technologies available nowadays are operating natively in DC.
Afonso, João L. +5 more
core +1 more source
Spatiotemporal engineering of dynamic color in alternating‐current‐driven light‐emitting devices
FlexMat, EarlyView.This review presents a mechanism‐driven framework for spectral tuning in alternating‐current‐driven light‐emitting devices, systematically integrating emissive center engineering, device architecture design, and driving signal modulation. By linking microscopic carrier dynamics and electric‐field‐charge interactions with macroscopic spectral evolution,
Yuyue Yang +3 more
wiley +1 more source
, 2021 The Hybrid AC/DC house is a proof of concept implementing a DC bus in residential power systems. The implementation of the DC bus is motivated by efficiency through a direct path for DC sources and loads.
Tran, Vinh Q +2 more
core
Van der Waals ferroelectric semiconductor tunnel junction with ultra‐low switching voltage
InfoMat, EarlyView.Ferroelectric tunnel junctions are promising building blocks for energy‐efficient memory and brain‐inspired computing, but their practical use is limited by the relatively high voltages required for operation. Here, we develop an all‐two‐dimensional ferroelectric tunnel junction based on AgBiP2Se6 that enables reliable memory operation below 0.2 V and ...
Fuqin Sun +17 more
wiley +1 more source
Power Flow Control in the Converters Interconnecting AC-DC Meshed Systems
, 2015 DC grids are being strongly considered as a technology to be used for future expansions of the transmission system. Voltage sourced converters (VSC) are the key equipment considered for AC/DC interconnections. However the flow from DC to AC system has to
Jardini, Jose Antonio +6 more
core +1 more source