Results 61 to 70 of about 20,786 (207)
DC-Link Voltage Balancing Modulation for Cascaded H-Bridge Converters
IEEE Access, 2021 Cascaded H-Bridge (CHB) converters have been widely employed in various applications, providing the advantages of modularity and multilevel voltage output. However, technically the CHB converters require isolated DC-link buses, which need to be regulated
Youngjong Ko +2 more
doaj +1 more source
, 2015 This paper deals with the problem of trajectory tracking of a class of bilinear systems with time--varying measurable disturbance. A set of matrices {A,B_i} has been identified, via a linear matrix inequality, for which it is possible to ensure global ...
Bergna, G. +5 more
core +4 more sources
DC fault isolation study of bidirectional dual active bridge DC/DC converter for DC transmission grid application [PDF]
, 2015 Fast isolation and detection of DC faults is currently a limiting factor in high power DC transmission grid development. Recent research has shown that the role of DC/DC converters is becoming increasingly important in solving various DC grid challenges ...
Aboushady, Ahmed A. +2 more
core +2 more sources
Modular Multilevel Converter DC Fault Protection [PDF]
IEEE Transactions on Power Delivery, 2018 High voltage direct current grids will require the development of dc protections that provide fast fault isolation and minimize the disturbance caused to the existing ac power networks. This paper investigates how the dc fault recovery performance of a half-bridge modular multilevel converter (HB-MMC) is impacted by different dc protection design ...
Cwikowski, O +6 more
openaire +4 more sources
Measurement + ControlModular multilevel converters are widely used voltage source converters in a variety of applications, such as power transmission, renewable energy, and motor drives.
Bhavik Brahmbhatt +5 more
doaj +1 more source
Modeling Control and Robustness Assessment of Multilevel Flying-Capacitor Converters
Energies, 2021 When performing AC/DC-DC/AC power conversions, multilevel converters provide several advantages as compared to classical two-level converters. This paper deals with the dynamic modeling, control, and robustness assessment of multilevel flying-capacitor ...
Roberto Zanasi, Davide Tebaldi
doaj +1 more source
Cost and losses associated with offshore wind farm collection networks which centralise the turbine power electronic converters [PDF]
, 2013 Costs and losses have been calculated for several different network topologies, which centralise the turbine power electronic converters, in order to improve access for maintenance.
Anaya-Lara, Olimpo, Parker, Max
core +1 more source
Solid-state transformer based on modular multilevel converters
The Journal of Engineering, 2019 A new highly compact topology for solid-state transformers is presented. It is based on modular multilevel converters and, therefore, has their usual advantages such as superior voltage shape, high reliability, and scalability.
Patrick Himmelmann, Marc Hiller
doaj +1 more source
IEEE Open Journal of the Industrial Electronics Society, 2020 This paper for the first time comprehensively presents a multilevel space vector pulse width modulation (SVPWM) method based on the imaginary coordinate system. This method is probably one of the most efficient methods in fast multilevel SVPWMs.
Xibo Yuan, Yue Gao, Yongdong Li
doaj +1 more source
High Efficiency Power Amplifier Based on Envelope Elimination and Restoration Technique [PDF]
, 2010 Due to complex envelope and phase modulation employed in modern transmitters it is necessary to use power amplifiers that have high linearity. Linear power amplifiers (classes A, B and AB) are commonly used, but they suffer from low efficiency especially
Alou Cervera, Pedro +9 more
core +2 more sources