Results 1 to 10 of about 12,297 (303)

Three-Phase Primary Control for Unbalance Sharing between Distributed Generation Units in a Microgrid [PDF]

open access: yesEnergies, 2013
For islanded microgrids, droop-based control concepts have been developed both in single and three-phase variants. The three-phase controllers often assume a balanced network; hence, unbalance sharing and/or mitigation remains a challenging issue ...
Tine L. Vandoorn   +3 more
doaj   +4 more sources

CONTROL AND GRID SYNCHRONIZATION OF TWO LEVEL VOLTAGE SOURCE INVERTER UNDER TEMPORARY VOLTAGE UNBALANCE

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2016
This paper presents the operation of grid tied, two level voltage source inverter (VSI) during network voltage unbalance. The control system was implemented in synchronous rotating reference frame dq0 (SRF).
Tomasz Chmielewski
doaj   +2 more sources

Study on grid adaptability testing methodology for wind turbines [PDF]

open access: yesJournal of Modern Power Systems and Clean Energy, 2013
The use of wind power has grown rapidly in recent years. Wind power is a clean source of energy, but can have negative impacts on the distribution grid.
Shaolin Li   +4 more
doaj   +2 more sources

Control of a hybrid modular multilevel converter during grid voltage unbalance [PDF]

open access: yes11th IET International Conference on AC and DC Power Transmission, 2015
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’ bridge.
Amankwah, Emmanuel K.   +3 more
core   +4 more sources

Collaborative Voltage Unbalance Elimination in Grid-Connected AC Microgrids With Grid-Feeding Inverters [PDF]

open access: yesIEEE Transactions on Power Electronics, 2021
© 2021 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 ...
Aangel Borrell   +5 more
openaire   +3 more sources

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

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

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

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

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