Results 11 to 20 of about 13,079 (253)

Research on a Three-Phase Energy Mutual-Aid Strategy for a Grid-Connected Inverter Based on Constructed Negative Sequence Current Control

open access: yesApplied Sciences, 2023
With the increased grid-connected capacity of a single-phase distributed power supply, three-phase power unbalance is more likely to occur in a power grid.
Zhenao Sun, Dazhong Ma, Qiuye Sun
doaj   +1 more source

Improved Method for Determining Voltage Unbalance Factor Using Induction Motors

open access: yesEnergies, 2022
This work shows an alternative method to determine the Voltage Unbalance Factor in a power grid by using both the mean value of the line voltages and Current Unbalance Factor in induction motors. Twenty unbalanced voltage points on three induction motors
Luis Guasch-Pesquer   +3 more
doaj   +1 more source

Unbalanced Voltage Compensation with Optimal Voltage Controlled Regulators and Load Ratio Control Transformer

open access: yesEnergies, 2021
Penetration of equipment such as photovoltaic power generations (PV), heat pump water heaters (HP), and electric vehicles (EV) introduces voltage unbalance issues in distribution systems.
Akito Nakadomari   +6 more
doaj   +1 more source

Control of grid-interfacing inverters with integrated voltage unbalance correction [PDF]

open access: yes2008 IEEE Power Electronics Specialists Conference, 2008
This paper presents the control of a grid-interfacing inverter with integrated voltage unbalance correction. It is proposed to add an additional function to the inverter to decrease the negative-sequence voltage at the point of connection with the utility grid.
Wang, F., Duarte, J.L., Hendrix, M.A.M.
openaire   +2 more sources

A New Two-Stage Approach to Coordinate Electrical Vehicles for Satisfaction of Grid and Customer Requirements

open access: yesApplied Sciences, 2021
Recently due to air pollution concerns, a large number of electric vehicles have been integrated into the electric distribution system. However, the uncoordinated charging of this technology can cause different voltage issues.
Trinnapop Boonseng   +3 more
doaj   +1 more source

Three-Phase Four-Wire Inverter for Grid Emulator Under Wide Inductance Variation to Evaluate the Performance of Distributed Generator

open access: yesIEEE 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

Collaborative Voltage Unbalance Compensation in Islanded AC Microgrids With Grid-Forming Inverters

open access: yesIEEE 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   +2 more sources

Coherence‐based integrated detection and assessment algorithm for voltages and currents unbalance/disturbance in three‐phase synchronous generators: A validation of simulation results

open access: yesThe 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

Improved virtual synchronous control for grid-connected VSCs under grid voltage unbalanced conditions

open access: yesJournal 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

Enhanced Electric Vehicle Integration in the UK Low Voltage Networks with Distributed Phase Shifting Control [PDF]

open access: yes, 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

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