Results 11 to 20 of about 12,297 (303)
Collaborative Voltage Unbalance Compensation in Islanded AC Microgrids With Grid-Forming Inverters
IEEE Transactions on Power Electronics, 2022 © 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted ...
Angel Borrell +4 more
openaire +4 more sources
IET Renewable Power Generation, 2016 Low‐voltage distribution grids (LV) experience unbalanced voltage condition due to the high penetration levels of rooftop mounted single‐phase photovoltaic (PV), the existence of single‐phase transformers, unbalanced cable impedances and different load levels on each phase.
El-Naggar, Ahmed, Erlich, István
openaire +4 more sources
Operation of a hybrid modular multilevel converter during grid voltage unbalance [PDF]
IET Generation, Transmission & Distribution, 2016 The recently proposed parallel hybrid modular multilevel converter is considered to be a low loss, low component count converter with soft switching capability of the ‘main’ H‐bridge. The converter has similar advantages to other emerging modular multilevel converter circuits being considered for high‐voltage, direct current power transmission and can ...
Amankwah, Emmanuel K. +2 more
openaire +4 more sources
IEEE Access, 2021 Grid codes require wind turbines to have capability to withstand a certain grid voltage unbalance without tripping. However, existing controls for brushless doubly-fed induction generator (BDFIG) based wind turbine under grid unbalance have many problems
Sheng Hu, Guorong Zhu, Yong Kang
doaj +3 more sources
IEEE Open Journal of Industry Applications, 2023 This article presents a three-phase four-wire inverter to generate voltage sources under wide filter inductance variation. The voltage sources with distortion and unbalance are to emulate grid voltages.
Tsai-Fu Wu +3 more
doaj +1 more source
Tradeoffs between AC power quality and DC bus ripple for 3-phase 3-wire inverter-connected devices within microgrids [PDF]
, 2011 Visions of future power systems contain high penetrations of inverters which are used to convert power from dc (direct current) to ac (alternating current) or vice versa.
Burt, Graeme M. +2 more
core +1 more source
Journal of Modern Power Systems and Clean Energy, 2018 This paper presents an improved virtual synchronous control (VSynC) for the grid-connected voltage source converter (VSC) so as to continuously operate under the grid voltage with steady unbalance.
Lei SHANG +3 more
doaj +1 more source
The Journal of Engineering, 2023 The phenomenon of imbalance is a variation of voltage and current waveforms from a perfect sinusoidal waveform, which is considered a crucial challenge in power systems.
Ragab Abd Allah Mahmoud
doaj +1 more source
An Analysis of Voltage Quality in a Nanogrid during Islanded Operation
Energies, 2019 Voltage quality data has been collected in a single house nanogrid during 48 weeks of islanded operation and 54 weeks of grid-connected operation. The voltage quality data contains the voltage total harmonic distortion (THD), odd harmonics 3 to 11 and 15,
Jakob Nömm +2 more
doaj +1 more source
Enhanced Electric Vehicle Integration in the UK Low Voltage Networks with Distributed Phase Shifting Control [PDF]
, 2019 Electric vehicles (EV) have gained global attention due to increasing oil prices and rising concerns about transportation-related urban air pollution and climate change.
Denai, Mouloud, Vega-Fuentes, Eduardo
core +3 more sources