Results 111 to 120 of about 66,529 (315)

Mitigation of voltage sag, swell and power factor correction using solid-state transformer b

open access: yesAlexandria Engineering Journal, 2014
This paper presents a novel topology of solid-state transformer (SST). In the design process, the AC/DC, DC/AC and AC/AC converters have been integrated to achieve higher efficiency. To obtain higher efficiency from other SST with DC-link topologies, the
M.R. Banaei, E. Salary
doaj   +1 more source

System configuration, fault detection, location, isolation and restoration: a review on LVDC Microgrid protections [PDF]

open access: yes, 2019
Low voltage direct current (LVDC) distribution has gained the significant interest of research due to the advancements in power conversion technologies. However, the use of converters has given rise to several technical issues regarding their protections
Bououden   +11 more
core   +1 more source

Development of DC/AC power converters for applications requiring high efficiency.

open access: yes, 2016
Silicon-based power devices have dominated power electronics applications over the last decades. Research and development in microelectronics have pushed the performance of power devices to face some fundamental limitations of silicon material. Wide band-gap semiconductors, such as silicon carbide, offer a solution to the pressing energy efficiency ...
openaire   +2 more sources

A Soft, Flexible Implant for Wireless Photothermal–Pyroelectric Neurostimulation

open access: yesAdvanced Science, EarlyView.
A replication strategy is used to enlarge the exposed surface area of barium titanate within flexible films with embedded carbon nanotubes, enabling efficient photothermal‐pyroelectric stimulation. Polar crystalline nanosheets show superior performance in guiding neural progenitor cells toward neuronal differentiation.
Jiang Wu   +7 more
wiley   +1 more source

Modular, Multiport AC-DC Converter with Add-On HF Isolating Units

open access: yesEnergies
In this paper, we propose a novel concept of a modular, multiport, single-stage, bidirectional, isolated, three-phase AC-DC converter system. This new system is realized using add-ons to a standard voltage source inverter, including both grid-connected ...
Pawel B. Derkacz   +4 more
doaj   +1 more source

Simple control strategy for a PV-battery system

open access: yesThe Journal of Engineering, 2019
Nowadays, energy storage systems, such as batteries, are spreading in many applications. Among the kinds of batteries, the lithium-ion technology is one of the most promising solutions.
Simone Barcellona   +3 more
doaj   +1 more source

Novel Topology for Four-Quadrant Converter [PDF]

open access: yes, 1999
Particle accelerators, like the LHC (Large Hadron Collider), make use of true bipolar power converters to feed superconducting magnets. Moreover, the LHC imposes that most converters must be installed underground.
Bordry, Frederick   +5 more
core  

Leveraging Artificial Intelligence and Large Language Models for Cancer Immunotherapy

open access: yesAdvanced Science, EarlyView.
Cancer immunotherapy faces challenges in predicting treatment responses and understanding resistance mechanisms. Artificial intelligence (AI) and machine learning (ML) offer powerful solutions for cancer immunotherapy in patient stratification, biomarker discovery, treatment strategy optimization, and foundation model development.
Xinchao Wu   +4 more
wiley   +1 more source

Dual-Port Grid-Forming Control of Double-Stage Interlinking Converters in Islanded Hybrid AC/DC Microgrids

open access: yesIEEE Access
Hybrid AC/DC microgrids (MGs) are comprised of AC and DC MGs interconnected through an interlinking converter (ILC). This paper presents a novel control strategy for double-stage ILCs (consisting of bidirectional DC-DC and DC-AC converters) in islanded ...
Mehdi Baharizadeh   +3 more
doaj   +1 more source

Impacts on Power Factor of AC Voltage Controllers Under Non-Sinusoidal Conditions [PDF]

open access: yesMehran University Research Journal of Engineering and Technology, 2012
AC-AC conversion is obtained with the help of Cyclo-converters, DC Link converters and AC Voltage Controllers. AC voltage controllers are also referred to as voltage regulators.
Mukhtiar Ahmed Mahar   +2 more
doaj  

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