Results 21 to 30 of about 41,873 (290)

Direct usage of photovoltaic solar panels to supply a freezer motor with variable DC input voltage [PDF]

open access: yes, 2020
In this paper, a single-phase photovoltaic (PV) inverter fed by a boost converter to supply a freezer motor with variable DC input is investigated. The proposed circuit has two stages.
Farzan Moghaddam, Ali   +1 more
core   +2 more sources

Double-Synchronous-Reference-Frame-Based Power-Synchronized PLL-Less Grid-Following Inverters for Unbalanced Grid Faults

open access: yesIEEE Open Journal of Power Electronics, 2023
This article proposes a double-synchronous-reference-frame-based power-synchronized grid-following inverter (DS-PSGFLI). In contrast to existing types of phase-locked-loop (PLL)-based grid-following inverters (GFLIs) and PLL-less power-synchronized GFLIs
Nabil Mohammed   +2 more
doaj   +1 more source

Wideband Dissipativity Enhancement of Grid-Following Inverters Using Virtual Element Design [PDF]

open access: yesCPSS Transactions on Power Electronics and Applications, 2023
Dissipativity provides a convenient approach to predict system stability, which explains the induced resonances from the perspective of damping. To mitigate potential resonances and improve stability, this work presents a design method to enhance the dissipativity of grid-following inverters over a wide frequency range.
Yang, Zhiqing   +5 more
openaire   +1 more source

Tradeoffs between AC power quality and DC bus ripple for 3-phase 3-wire inverter-connected devices within microgrids [PDF]

open access: yes, 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

A Comparison of Inverter Control Modes for Maintaining Voltage Stability During System Contingencies

open access: yesIEEE Open Access Journal of Power and Energy, 2022
Inverter-based power sources are increasingly being connected to the power system due to the global drive towards renewable generation. This paper investigates the voltage stability of a power system where a load center is supplied by the grid through a ...
Thilini Hathiyaldeniye   +3 more
doaj   +1 more source

Suppression of line voltage related distortion in current controlled grid connected inverters [PDF]

open access: yes, 2005
The influence of selected control strategies on the level of low-order current harmonic distortion generated by an inverter connected to a distorted grid is investigated through a combination of theoretical and experimental studies.
Abeyasekera, T.   +3 more
core   +2 more sources

Design of a Controller for Grid Forming Inverter-Based Power Generation Systems

open access: yesIEEE Access, 2023
Recently the grid-following inverter-based power generation systems (IBPGSs) dominate over synchronous generators (SGs) in load sharing in some areas of power grids in many countries worldwide.
Md. Minarul Islam   +4 more
doaj   +1 more source

Rapid Admittance Measurement of Power Converters Using Double-PLL Grid-following Inverters

open access: yesIEEE Transactions on Power Delivery, 2023
<p>As power systems undergo a transformation with increasing inverter-based resources (IBRs), understanding the stability and dynamics of IBR-dominated systems becomes imperative. Though analytical models offer insights into these changes, intellectual property constraints introduce a challenge due to the black-box nature of IBRs, highlighting ...
Weihua Zhou   +3 more
openaire   +1 more source

Analysis and mitigation of dead time harmonics in the single-phase full-bridge PWM converters with repetitive controllers [PDF]

open access: yes, 2018
In order to prevent the power switching devices (e.g., the Insulated-Gate-Bipolar-Transistor, IGBT) from shoot through in voltage source converters during a switching period, the dead time is added either in the hardware driver circuits of the IGBTs or ...
Blaabjerg, Frede   +3 more
core   +3 more sources

Active Power Coordination for a Large Population of Grid-Forming and Grid-Following Inverters Based on Mean Field Games Theory

open access: yesIEEE Access, 2023
In a grid with a high proportion of renewable energy, the coordinated control between grid-forming (GFM) and grid-following (GFL) inverters becomes crucial for maintaining aspects such as frequency and voltage regulation.
Nuo Xu, Xiaodong Chu, Hua Ye
doaj   +1 more source

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