Results 21 to 30 of about 108,307 (312)
The Journal of Engineering, 2019 The large PV medium-voltage (MV) DC power collection system is more efficient than the traditional AC collection system, which provides an alternative for future PV applications.
Xi Xinze +6 more
doaj +1 more source
Acoustic Multi-Parameter Early Warning Method for Transformer DC Bias State
Sensors, 2022 The acoustic signal in the operation of a power transformer contains a lot of transformer operation state information, which is of great significance to the detection of DC bias state.
Yuhao Zhou, Bowen Wang
doaj +1 more source
Power Quality Improvement and Low Voltage Ride through Capability in Hybrid Wind-PV Farms Grid-Connected Using Dynamic Voltage Restorer [PDF]
, 2018 © 2018 IEEE. Translations and content mining are permitted for academic research only. Personal use is also permitted, but republication/redistribution requires IEEE permission.This paper proposes the application of a dynamic voltage restorer (DVR) to ...
Allaoui, Tayeb +3 more
core +2 more sources
Influence of Phase-Shifted Square Wave Modulation on Medium Frequency Transformer in a MMC Based SST
IEEE Access, 2020 This article proposes an approach to identify intrinsic power losses of the medium frequency transformer that interfaces two modular multilevel converters (MMC) operated with phase-shifted square wave modulation (PS-SWM) to form a DC solid state ...
Rachit Agarwal, Sandro Martin, Hui Li
doaj +1 more source
Research on Access Mode of the Flexible DC Power Distribution System into AC System
Energies, 2019 The connection mode of the direct current (DC) power distribution system and the alternating current (AC) system is the foundation of system design, and it is also one of key technologies of the DC power distribution network.
Yao Liu +5 more
doaj +1 more source
The UT 19-channel DC SQUID based neuromagnetometer [PDF]
, 1991 A l9-channel DC SQUID based neuromagnetometer is under construction at the University of Twente (UT). Except for the cryostat all elements of the system are developed at the UT.
Ancum, G.K. van +6 more
core +4 more sources
Transformer Isolated Buck-Boost Converters
Renewable Energy and Sustainable Development, 2016 Of the single-switch dc-to-dc converters, those with the buck-boost voltage transfer function offer most potential for transformer coupling, hence isolation, at the kilowatt level. This paper highlights the limitations of the traditional magnetic coupled,
Barry W. Williams
doaj +1 more source
IEEE Access, 2021 Aiming at the low-voltage DC distribution network system and combining the characteristics of F2F structure and ISOP-DAB structure DC transformer, this paper proposes a DC transformer structure based on modular multilevel converter (MMC) and cascaded H ...
Guanglin Sha +6 more
doaj +1 more source
Reachability Analysis of Transformer-Isolated DC-DC Converters
EPiC Series in Computing, 2018 Various mission-critical applications necessarily require a transformer in switching converters to obtain DC isolation between the converters’ input and output. Since DC-DC converters are the switching devices, these are modeled as hybrid automata. We present hybrid automaton modeling of two main types of transformer isolated DC-DC converters, namely ...
Omar Beg, Ali Davoudi, Taylor T. Johnson
openaire +2 more sources
Design optimization of a high-power transformer for three-phase dual active bridge DC-DC converter for MVDC grids [PDF]
, 2016 High-power DC-DC converter will be one of the essential technologies for the future DC grids. Especially, a three-phase dual-active bridge DC-DC (3DAB) Converter is highly suitable for high-power DC systems.
Feldman, Ralph +4 more
core +1 more source