Results 41 to 50 of about 174,362 (344)
Control of Grid Connected Modular Multilevel Converter
Elektronika ir Elektrotechnika, 2015 This paper describes the control of multilevel voltage source active rectifier connected directly to ac grid. The proposed topology of multilevel converter is composed of three cascaded H-bridge converters (CHB), thus in this case seven level converter. Designed control algorithm provides direct current control in each phase even under unbalanced load.
Vojtech Blahnik +2 more
openaire +1 more source
AC-Side Impedance-Based Stability Assessment in Grid-Forming Modular Multilevel Converters
IEEE AccessGrid-forming converters can emulate the behavior of a synchronous generator through frequency droop control. The stability of grid-forming modular multilevel converters can be studied via the impedance-based stability criterion. This paper presents an ac-
Mehrdad Nahalparvari +3 more
doaj +1 more source
Asteroseismic Stellar Modelling with AIMS
, 2017 The goal of AIMS (Asteroseismic Inference on a Massive Scale) is to estimate stellar parameters and credible intervals/error bars in a Bayesian manner from a set of asteroseismic frequency data and so-called classical constraints.
J. Christensen-Dalsgaard +5 more
core +1 more source
SZTAKI Desktop Grid: a Modular and Scalable Way of Building Large Computing Grids [PDF]
2007 IEEE International Parallel and Distributed Processing Symposium, 2007 So far BOINC based desktop grid systems have been applied at the global computing level. This paper describes an extended version of BOINC called SZTAKI desktop grid (SZDG) that aims at using desktop grids (DGs) at local (enterprise/institution) level. The novelty of SZDG is that it enables the hierarchical organisation of local DGs, i.e., clients of a
Zoltan Balaton +8 more
openaire +1 more source
The Journal of Engineering, 2019 Modular multilevel converter-battery energy storage system (MMC-BESS) has a good engineering application. When MMC-BESS is connected to the grid, the real-time phase angle of grid is an important parameter.
Dan Zhang +3 more
doaj +1 more source
Harmonic influence analysis of unified power flow controller based on modular multilevel converter
Journal of Modern Power Systems and Clean Energy, 2016 The unified power flow controller (UPFC) based on modular multilevel converter (MMC) is the most creative flexible ac transmission system (FACTS) device.
Yubo Yuan +5 more
doaj +1 more source
GRAIL – Grid Access and Instrumentation Tool [PDF]
, 2007 Since the release of Globus Toolkit 4 Web services enrich the world of Grid Computing. They provide methods to develop modular Grid applications which can be parallelized easily.
Gemmeke, H. +3 more
core
Modular multilevel converter with modified half-bridge submodule and arm filter for dc transmission systems with DC fault blocking capability [PDF]
, 2018 Although a modular multilevel converter (MMC) is universally accepted as a suitable converter topology for the high voltage dc transmission systems, its dc fault ride performance requires substantial improvement in order to be used in critical ...
Abdelsalam, Ibrahim A. +3 more
core +2 more sources
Advanced Engineering Materials, Volume 27, Issue 6, March 2025.ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source
Analysis and design of a modular multilevel converter with trapezoidal modulation for medium and high voltage DC-DC transformers [PDF]
, 2015 Conventional dual active bridge topologies provide galvanic isolation and soft-switching over a reasonable operating range without dedicated resonant circuits.
Adam, Grain P. +4 more
core +2 more sources