Results 51 to 60 of about 14,500 (284)

Generalized Voltage-based State-Space Modelling of Modular Multilevel Converters with Constant Equilibrium in Steady-State [PDF]

open access: yes, 2017
This paper demonstrates that the sum and difference of the upper and lower arm voltages are suitable variables for deriving a generalized state-space model of an MMC which settles at a constant equilibrium in steady-state operation, while including the ...
Bergna-Diaz, Gilbert   +4 more
core   +3 more sources

Zero phase sequence voltage injection for the alternate arm converter [PDF]

open access: yes, 2015
The Alternate Arm Converter (AAC) is a voltage source converter being developed as an alternative to the Modular Multilevel Converter (MMC) for HVDC power transmission and reactive power compensation.
Dyke, KJ   +4 more
core   +1 more source

Investigating the Converter-Driven Stability of an Offshore HVDC System

open access: yesEnergies, 2021
Offshore wind farms are increasingly built in the North Sea and the number of HVDC systems transmitting the wind power to shore increases as well. To connect offshore wind farms to adjacent AC transmission systems, onshore and offshore modular multilevel
Matthias Quester   +5 more
doaj   +1 more source

Selection Strategies for Flexible Pressure Sensor Electrode Materials Toward Ultrafast Response

open access: yesAdvanced Functional Materials, EarlyView.
This study reveals, for the first time, how the electrode–organic interface governs the temporal performance of flexible pressure sensors. By pairing high‐conductivity CVD PEDOT with commonly used metal electrodes, the authors demonstrate that interfacial energy alignment dictates microsecond‐scale response, providing a straightforward design strategy ...
Jinwook Baek   +11 more
wiley   +1 more source

Stabilization of voltages on capacitors of cells in modular multilevel inverters with space-vector PWM [PDF]

open access: yes, 2019
За последние два десятилетия появился новый тип полупроводниковых преобразователей электроэнергии –модульные многоуровневые преобразователи. Данная топология схемотехнически состоит из n-го числа последовательно включенных транзисторно-емкостных модулей ...
Нерубацкий, Владимир Павлович   +2 more
core   +1 more source

Bio‐Inspired Multimodal Hardware Front‐End Enabled by 2D Floating‐Gate Memory for UAV Perception

open access: yesAdvanced Functional Materials, EarlyView.
A MoS2/h‐BN /graphene floating‐gate memory underpins a bio‐inspired multimodal front end that integrates visual, inertial, and airflow cues. A 4 × 4 FG memory array encodes temporal intensity differences, while IMU‐ and airflow‐driven threshold modulation suppresses self‐motion artifacts, enabling fast, low‐power, robust autonomous UAV tracking and ...
Lianghao Guo   +11 more
wiley   +1 more source

Control of AC/DC Modular Multilevel Converter

open access: yesElektronika ir Elektrotechnika, 2018
In recent years, a special attention is paid to grid connected multilevel converters. These converters have specific use in industry in a high power, medium-voltage and high-voltage applications. This paper presents new control algorithm for single-phase
Vojtech Blahnik   +3 more
doaj   +1 more source

Comparison between two VSC-HVDC transmission systems technologies : modular and neutral point clamped multilevel converter [PDF]

open access: yes, 2009
The paper presents a detail comparison between two voltage source converter high voltage dc transmission systems, the first is based on neutral point-clamped (also known as HVDC-Light) and the second is based on innovative modular multilevel converter ...
Adam, G.P.   +5 more
core  

Dual Channel Control with DC Fault Ride Through for MMC-based, Isolated DC/DC Converter [PDF]

open access: yes, 2017
This study is sponsored by the Engineering and Physical Sciences Research Council (EPSRC) grant no EP/K006428/1, 2013.D. Jovcic and H. Zhang are with the School of Engineering, University of Aberdeen, AB24 3UE, U.K.
Jovcic, Dragan, Zhang, Huibin
core   +1 more source

Decellularized Extracellular Matrix (dECM) in Tendon Regeneration: A Comprehensive Review

open access: yesAdvanced Healthcare Materials, EarlyView.
Decellularized Extracellular Matrix (dECM) offers a promising solution by replicating the native tendon microenvironment and promoting regeneration. This review highlights advances in the decellularization methods, as well as their integration with emerging technologies and translational progress in tendon tissue engineering.
Kumaresan Sakthiabirami   +4 more
wiley   +1 more source

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