A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
Filters
Magnitude-Reshaping Strategy for Harmonic Suppression of VSG-Based Inverter Under Weak Grid
2020
IEEE Access
Preserved Fulltext
The equivalent harmonic circuit of reshaped VSG-based system is equivalent to open circuit. Therefore, the power quality of grid-connected current can be guaranteed. ...
However, harmonic sources in the distributed generation systems with high grid impedance will cause grid voltage distortion. Distorted voltage greatly affects the power quality of VSG. ...
GRID-CONNECTED CURRENT DISTORTION ISSUE OF VSG IN WEAK GRID Different types of local sources of harmonics exist in the three-phase weak grid. ...
doi:10.1109/access.2020.3026054
fatcat:3gackprmqregxmuumbsldfm4mu
Modeling and Analysis of the Harmonic Interaction between Grid-Connected Inverter Clusters and the Utility Grid
2022
Energies
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2022; you can also visit the original URL.
The file type is application/pdf.
On this basis, the capacitor current control for a grid-connected inverter based on a VSG is proposed to enhance the resonance suppression. ...
The total harmonic distortion (THD) can be reduced to 3.2% which meets the requirements of IEEE standard 519. ...
The above conventional methods to suppress the harmonic currents of a VSG are still unclear as to the mechanism. ...
doi:10.3390/en15103490
fatcat:42awtnaasfe4xcmm77sc2lrwji
State of the Art of the Techniques for Grid Forming Inverters to Solve the Challenges of Renewable Rich Power Grids
2022
Energies
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2022; you can also visit the original URL.
The file type is application/pdf.
It also provides a comprehensive review on frequency deviations and power system stability issues in low-inertia systems and recent advancements in control methods for harmonic mitigation. ...
Due to their intermittent nature, the grid connected operation of renewable energy resources provides a better performance compared to the standalone operation. ...
To measure voltage stability, in [73] , which analyzes the voltage and frequency stability of a VSG-based grid connected system under weak grid conditions, impedance-based modeling for VSG in a synchronous ...
doi:10.3390/en15051879
fatcat:zmvqmsy6qbfjdplmftvejcsymq
A Virtual Impedance Based VSG Control for Grid-Connected Inverter Under the Weak Grid Situations
2018
IET Power Electronics
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2021; you can also visit the original URL.
The file type is application/pdf.
In this study, an improved control method of the grid-connected inverter is presented to enhance the harmonic suppression. ...
The capacitor-current-feedback-based active damping is applied to the LCL-type grid-connected inverter, which is controlled in the virtual synchronous generator mode. ...
The capacitorcurrent-based virtual-impedance feedback is applied to the LCLtype grid-connected inverter controlled in the VSG mode. ...
doi:10.1049/iet-pel.2018.5200
fatcat:ncfiax5q6fakpbf7kjvxb6okmu
A Virtual Synchronous Generator Control Strategy for Microgrid Based on Harmonic Current Bypass Control
2022
International Transactions on Electrical Energy Systems
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2022; you can also visit the original URL.
The file type is application/pdf.
To improve the voltage and frequency stability and suppress the voltage harmonics of a microgrid, a virtual synchronous generator (VSG) control strategy based on the harmonic current bypass control is ...
A harmonic current bypass control link is then used to adjust the inverter's voltage signal to reduce the total harmonic distortion of the microgrid. ...
e authors also thank LetPub (https://www.letpub.com) for its linguistic assistance during the preparation of this manuscript. ...
doi:10.1155/2022/2516777
fatcat:zbbmqeolnfesthyzuv2rq2l64a
Grid-Connected Control Strategy of VSG under Complex Grid Voltage Conditions
2022
Energy Engineering
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2022; you can also visit the original URL.
The file type is application/pdf.
Then, the improved quasi proportional resonant controller (QPR) cascaded PI is used to suppress the harmonic current further so that the harmonic content of grid-connected current can meet the grid-connected ...
An improved delay signal cancellation (DSC) method is proposed to control the balance current and power fluctuation under unbalanced voltage based on the method of common VSG positive and negative sequence ...
The harmonic content and unbalance degree meet the grid connection standard when grid-connected current balance is used for control purposes under the non-ideal grid voltage. ...
doi:10.32604/ee.2022.018233
fatcat:zkbhth6gnvg4ni7y6to4dvxfi4
An Inductor Current Sensorless Control Strategy Based on Modified VSG Method for Single-Phase Microgrid Application With Seamless Transfer Capability
2021
Frontiers in Energy Research
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2021; you can also visit the original URL.
The file type is application/pdf.
Secondly, a seamless switching strategy based on the modified VSG method is proposed, which can realize the seamless transition between the island mode and grid-connected mode. ...
This paper proposes an inductor current sensorless control strategy based on modified virtual synchronous generator (VSG) method for single-phase inverter-interfaced microgrid application. ...
All authors contributed to the article and approved the submitted version. ...
doi:10.3389/fenrg.2021.752422
fatcat:xdubfvweqzcufekwwxqap2q5fm
A Comprehensive Virtual Synchronous Generator Control Strategy for Harmonic and Imbalance Voltage Suppression of Multi-Inverter Parallel Microgrid
2022
Electronics
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2022; you can also visit the original URL.
The file type is application/pdf.
This paper proposes a comprehensive virtual synchronous generator (VSG) control strategy for harmonic suppression and imbalance suppression of a multi-inverter parallel microgrid. ...
On the other hand, the frequency division suppression control strategy is used to eliminate the influence of harmonics, and the negative sequence component is compensated to eliminate the influence of ...
In addition, the strategy can effectively reduce 5th and 7th harmonic distortion and voltage imbalance, even under non-linear and imbalance load conditions. ...
doi:10.3390/electronics11030492
doaj:221c5ee69217486897389d4617fdba5a
fatcat:mntwnctfxvex5jvgw5psg5iwpy
Grid Forming Inverter Modeling, Control, and Applications
2021
IEEE Access
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2021; you can also visit the original URL.
The file type is application/pdf.
This paper surveys current literature on modeling methods, control techniques, protection schemes, applications, and real-world implementations pertaining to grid forming inverters (GFMIs). ...
Moreover, the challenges in adding GFMIs into existing power systems, including a seamless transition from grid-connected mode to the standalone mode and vice versa, are also discussed in detail. ...
A notch filter-based method is used in [66] to mitigate the third harmonic distortion although, notch filterbased method is ineffective in suppressing harmonics coming from the grid-side. ...
doi:10.1109/access.2021.3104617
fatcat:vqdyykvn2vbmlncyeamwltp2tq
A Control Strategy of Islanded Microgrid With Nonlinear Load for Harmonic Suppression
2021
IEEE Access
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2021; you can also visit the original URL.
The file type is application/pdf.
Therefore, the sharing of the harmonic current and the suppression of the PCC voltage distortion are focused in this paper. ...
The output harmonic current of the inverters can be distributed autonomously according to the capacity of the inverters to suppress the harmonic circulation, and the suppression of the PCC voltage harmonic ...
The virtual impedance of each inverter was matched for sharing the harmonic power by this method. ...
doi:10.1109/access.2021.3064413
fatcat:2otnl664ofg5fdqiosugcwhamu
Virtual Synchronous Generator, a Comprehensive Overview
2022
Energies
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2022; you can also visit the original URL.
The file type is application/pdf.
Renewable energy sources (RESs) are generally connected to the grid through power electronic interfaces, which generate electrical power instantaneously with little inertia. ...
The key issues related to VSG are summarized and discussed, including hardware configuration, software control strategies, energy supporting methods, and typical applications. ...
The grid-connected converter works stably and the current harmonic content low without increasing the extra power loss of the system. ...
doi:10.3390/en15176148
fatcat:2lovwb3jrjct7o6t6eei2ybvxq
Model Predictive Control for Indirect Boost Matrix Converter Based on Virtual Synchronous Generator
2020
IEEE Access
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
Secondly, the exiting controls generate a highly distorted current waveform, which needs to be suppressed by a passive damping resistor. ...
The former is adopted to ensure proper operations in both grid-connected and islanded modes and to emulate the virtual inertial response by drawing inertial power from the input source. ...
For instance, high filter requirements are needed for the given method in [14] due to higher input current total harmonic distortion (THD), and the adding of passive components will increase overall ...
doi:10.1109/access.2020.2983115
fatcat:y54uo5ra7zanvifilcfnrbmrai
The Integrated Switching Control Strategy for Grid-Connected and Islanding Operation of Micro-Grid Inverters Based on a Virtual Synchronous Generator
2018
Energies
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
In allusion to the virtual synchronous generator (VSG)-based voltage source inverters in micro-grids, an integrated control method combining a quasi-synchronization algorithm and an islanding detection ...
The quasi-synchronization algorithm of the micro-grid inverter is designed to realize a flexible grid connection. ...
A new active islanding detection method based on 2nd harmonic impedance measurement is studied in [16] . ...
doi:10.3390/en11061544
fatcat:nil2hgf4kzfahloxnlqwtl34ue
AC Grid Emulations for Advanced Testing of Grid-Connected Converters
2020
IEEE transactions on power electronics
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2021; you can also visit the original URL.
The file type is application/pdf.
Consequently, in order to validate more advanced features such as the reliability and stability performances of the grid-connected converters, it is becoming an emerging need to emulate the grid behaviors ...
The practical implementation regarding to the circuit topology and the power supply for the grid emulation system are also discussed. ...
His research interests include control of dc/ac converter and mission profile emulators for gridconnected converters. ...
doi:10.1109/tpel.2020.3011176
fatcat:s4txjbxdvbes7oajjlcpwsbdgu
Progress in Control and Coordination of Energy Storage System based Virtual Synchronous Generator: A Review
2019
IET Renewable Power Generation
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2021; you can also visit the original URL.
The file type is application/pdf.
VSG produces virtual inertia by injecting appropriate active power value to the grid when needed. ...
A review on the type of energy storage system used for VSG and their benefits is also presented. ...
Suppression of frequency and voltage deviation using VSG during grid-connected and islanded operation modes are simulated in [21] . ...
doi:10.1049/iet-rpg.2019.0274
fatcat:uzjfdbetlvdkfdh6zlsma6ldsq
« Previous
Showing results 1 — 15 out of 69 results