Results 81 to 90 of about 7,480 (292)

A New Evaluation Circuit for DC-link Capacitors Used in a Three-Phase Inverter [PDF]

, 2015
2015 IEE-Japan Industry Applications Society, September 2-4, 2015, Oita University, Oita, JapanDC-link capacitors in power electronic converters are a major constraint on improvement of power density as well as reliability.
長谷川, 一徳, 大村, 一郎, 西澤, 伸一   +2 more
core  

Switched mode power supplies for charge-up, discharge and balancing dc-link capacitors of diode-clamped five-level inverter [PDF]

, 2010
Inductor switch mode power supplies (SMPS) operated in a discontinuous inductor current mode are used to balance the dc-link capacitor voltages of a diode-clamped five-level inverter.
Ashaibi, Ahmed, B.W. Williams, S.J. Finney, A.M. Massoud, Ashaibi, A. A., Williams, B. W., Finney, Stephen, Williams, Barry, Massoud, Ahmed, A.A. Ashaibi, Finney, S.,J.   +10 more
core   +1 more source

Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives

Advanced Materials, EarlyView.
Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi, Mario Palacios‐Corella, Arjan Mol, Salvador Pané, Josep Puigmartí‐Luis   +4 more
wiley   +1 more source

IGBT Based DC/DC Converter

Sultan Qaboos University Journal for Science, 1997
This paper presents an in-depth analytical and experimental investigation of an indirect DC-DC converter. The DC-AC conversion is a full bridge based on IGBT power modules, and the AC-DC conversion is done via a high  frequency AC link and a first diode ...
M. Akherraz
doaj   +1 more source

Water Permeates and Plasticizes Amorphous Carbon Dots: Unraveling the Inner Accessibility of the Nanoparticles by Glass Transition Studies

Advanced Materials, EarlyView.
The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti, Valerio Di Lisio, Lucia Cardo, Alessandro Camilli, Estela Moretón Alfonsín, Daniele Cangialosi, Amaia Iturrospe Ibarra, Arantxa Arbe, Maurizio Prato   +8 more
wiley   +1 more source

Synchronous DC link voltage control for microinverters with minimum DC link capacitance [PDF]

, 2017
This paper investigates DC link capacitor optimization for three-phase photovoltaic (PV) based microinverters. This concept minimizes the storage capacitance by allowing greater voltage ripple on the DC link.
S. Milad Tayebi, Issa Batarseh, Batarseh, Issa, Milad Tayebi, S.   +3 more
core   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Coordinated Inertia Synthesis and Stability Design for PV Systems Utilizing DC-Link Capacitors

Energies
The increasing penetration of inverter-based resources (IBRs) has been reducing system inertia and intensifying frequency stability challenges. Hence, various grid demands have been imposed on grid-connected systems, e.g., requiring the provision of an ...
Qi Hua, Lunbo Deng, Qiao Peng, Yongheng Yang   +3 more
doaj   +1 more source

Active Voltage Balancing of Integrated Modular Drive with Series DC-Link Capacitors [PDF]

, 2020
In order to reduce the size and weight of transmission cables, high direct current (DC) bus voltage is desired for electrical machine drives used in the hybrid powertrains of more-electric aircraft (MEA).
Wu, Fan, El-Refaie, Ayman M., Jahns, Thomas M.   +2 more
core   +1 more source

Asymmetrical DC link voltage configuration for a diode-clamped inverter [PDF]

, 2010
There is a trade off between a number of output voltage levels and the reliability and efficiency of a multilevel converter. A new configuration of diode-clamped multilevel inverters with a different combination of DC link capacitors voltage has been ...
Ghosh, Arindam, Nami, A., Nami, Alireza, Zare, Firuz, Nami , Alireza, zare, F.   +5 more
core   +1 more source