Results 11 to 20 of about 331,549 (312)
Energies, 2021 In this work, an idea of a wideband, precision, power electronics programmable voltage source (PVS) is presented. One of the basic elements of the converter, the control section, contains a continuous-time sigma-delta modulator (SDM) with a pair of ...
Michał Gwóźdź
doaj +1 more source
Modular Multilevel Converters: Control and Applications [PDF]
Energies, 2017 This review article is mainly oriented to the control and applications of modular multilevel converters (MMC). The main topologies of the switching modules are presented, for normal operation and for the elimination of DC faults. Methods to keep the capacitor voltage balanced are included.
Fernando Martinez-Rodrigo +4 more
openaire +4 more sources
Energies, 2020 Nowadays, LED lamps have become a widespread solution in different lighting systems due to their high brightness, efficiency, long lifespan, high reliability and environmental friendliness.
Claudio Adragna +4 more
doaj +1 more source
A fault current limiting control strategy for GFM converters based on directional current command
Zhejiang dianli, 2023 The grid-forming （GFM） control technology is instrumental in enabling converters to provide frequency and voltage support response akin to synchronous generators， thus bolstering the stability of the new power system.
WANG Nannan +5 more
doaj +1 more source
Performance analysis of modeling scale on multiband oscillations in grid-connected wind farm
Frontiers in Energy Research, 2023 Grid-connected permanent magnet synchronous generator (PMSG) wind farms may be susceptible to oscillation when connected to weak grids. This paper explores the root causes of the oscillations from two perspectives: the model and the oscillation frequency
Lin Zhu +5 more
doaj +1 more source
Design and implementation of 30kW 200/900V LCL modular multilevel based DC/DC converter for high power applications [PDF]
, 2016 This paper presents the design, development and testing of a 30kW, 200V/900V modular multilevel converter (MMC) based DC/DC converter prototype. An internal LCL circuit is used to provide voltage stepping and fault tolerance property.
Aboushady, A. +3 more
core +2 more sources
Per-Phase Power Controller for Smooth Islanded Transitions in Three-Phase Three-Wire Systems
Energies, 2023 This manuscript describes the operation of a droop-based controller for three-phase converters in the case of the absence of a neutral connection to the grid.
Andrea Lauri +4 more
doaj +1 more source
AIMS Energy, 2019 This work focuses on an isolated offline driver to power LED lamps, realized with a high-power-factor quasi-resonant (Hi-PF QR) flyback converter with peak current mode control and employing constant-current primary-sensing regulation (CC-PSR).
Giovanni Gritti, Claudio Adragna
doaj +1 more source
Comparison of single-phase matrix converter and H-bridge converter for radio frequency induction heating [PDF]
, 2007 This paper compares the newly developed single-phase matrix converter and the more conventional H- bridge converter for radio frequency induction heating.
Bingham, Chris +3 more
core +1 more source
Research on Control Strategy of Voltage Source Full Power Wind Power Converter
Kongzhi Yu Xinxi Jishu, 2023 In the operating environment of power system with weak grid characteristics, the traditional current source converter control mode is prone to vibration, which increases the crossing difficulty and off-grid probability of wind turbines.
ZHOU Wang +5 more
doaj +3 more sources