Results 11 to 20 of about 5,653,729 (292)

Control of Grid-Following Inverters Under Unbalanced Grid Conditions [PDF]

open access: yesIEEE Transactions on Energy Conversion, 2020
This paper proposes a new control scheme to eliminate the 3rd harmonic in the output currents of grid-following inverters under unbalanced grid conditions. Unbalanced grids adversely affect the performance of grid-following inverters due to the oscillations appearing on the DC-link voltage with a frequency twice the line frequency.
Seyed Fariborz Zarei   +5 more
openaire   +3 more sources

Performance of Grid-Following and Grid-Forming Inverters Under Unintentional Islanding Events: A Comparative Study

open access: yesEnergies
The increasing integration of inverter-based resources in smart grid systems has deepened the necessity to understand the difference between grid-following and grid-forming inverters’ operational performance, particularly under abnormal conditions such ...
Mohammad Abu Sarhan
doaj   +2 more sources

Angular Stability Analysis of Parallel Connected Grid-following PV Inverters

open access: yes2023 IEEE Texas Power and Energy Conference (TPEC), 2023
High penetration of distributed generators (DG) in modern power grids creates angle, voltage, and frequency instabilities. Most of the work in the literature has focused on small-signal stability analysis of single grid-connected inverters without thoroughly investigating their transient stability for large disturbances and interactions between ...
Mishan, Ramkrishna
openaire   +3 more sources

Small-Signal Stability of Hybrid Inverters with Grid-Following and Grid-Forming Controls

open access: yesEnergies
In the modern power grid, characterized by the increased penetration of power electronics and extensive utilization of renewable energy, inverter-based power plants play a pivotal role as the principal interface of renewable energy sources (RESs) and the
Xiaotong Ji   +4 more
doaj   +2 more sources

PLL-Free Approach: Reactive Power-Based Synchronization in Grid-Following Inverters

open access: yesIEEE Transactions on Energy Conversion
The rapid growth in inverter-based resource penetration is leading to the widespread integration of grid-following and grid-forming inverters within ac grids. Despite their distinct operational characteristics, these two inverter modes share fundamental similarities, motivating joint investigations into their attributes.
Zehua Tang, Tao Hu, Grazia Todeschini
openaire   +3 more sources

Distributed control of a fault tolerant modular multilevel inverter for direct-drive wind turbine grid interfacing [PDF]

open access: yes, 2013
Modular generator and converter topologies are being pursued for large offshore wind turbines to achieve fault tolerance and high reliability. A centralized controller presents a single critical point of failure which has prevented a truly modular and ...
Parker, Max, Ran, Li, Finney, Stephen
core   +4 more sources

Robust repetitive feedback control of a three-phase grid connected inverter [PDF]

open access: yes, 2010
This paper discusses the design of a repetitive feedback controller for a grid-connected two-level three-phase voltagesource inverter connected between a DC source and the grid through an LCL filter.
Sharkh, S.M.   +8 more
core   +2 more sources

Overview of Intelligent Inverters and Associated Cybersecurity Issues for a Grid-Connected Solar Photovoltaic System

open access: yesEnergies, 2023
The major problem associated with the grid-connected solar photovoltaic (PV) system is the integration of the generated DC power into the AC grid and maintaining the stability of the system. With advancements in research on these PV inverters, artificial
Sai Nikhil Vodapally, Mohd Hasan Ali
doaj   +1 more source

Grid Forming Inverters: A Review of the State of the Art of Key Elements for Microgrid Operation

open access: yesEnergies, 2022
In the past decade, inverter-integrated energy sources have experienced rapid growth, which leads to operating challenges associated with reduced system inertia and intermittent power generation, which can cause instability and performance issues of the ...
Sara Anttila   +3 more
doaj   +1 more source

Impact of Solar Inverter Dynamics during Grid Restoration Period on Protection Schemes Based on Negative-Sequence Components

open access: yesEnergies, 2022
The growing penetration of renewable resources such as wind and solar into the electric power grid through power electronic inverters is challenging grid protection.
Almir Ekic, Di Wu, John N. Jiang
doaj   +1 more source

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