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Harmonic Stability Analysis for Multi-Parallel Inverter-Based Grid-Connected Renewable Power System Using Global Admittance
2019
Energies
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and provide guidance for resonance suppression, especially in the case of a large number of grid-connected inverters and asymmetric inverter parameters. ...
This global admittance-based stability criterion can be used not only to analyze system stability, but also to reveal the influence of each VSI unit on system stability with a lower computational burden ...
Traditional Impedance-Based Stability Criterion
Stability Criterion for a Single Grid-Connected Inverter System The most common model of a power grid for stability analysis involves an admittance, Y ...
doi:10.3390/en12142687
fatcat:nhd7lknnhzcmjceggbba7ns23a
An Improved Three-Level Cascaded Control for LCL-Filtered Grid-Connected Inverter in Complex Grid Impedance Condition
2022
IEEE Access
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This paper derived the impedance model of LCL-filtered grid-connected inverter with grid current control based on PBC method. ...
The passive theory and the zero-pole maps are applied to reveal the influence of the digital delay and differential item of inverter current loop. ...
Based on the passive theory [32] , the interaction stability with power grid can be analyzed by inverter output admittance in frequency domain. ...
doi:10.1109/access.2022.3183332
fatcat:me5ht7s5t5a3dhnep4uithbrte
Modeling and Analysis of Harmonic Stability in an AC Power-Electronics-Based Power System
2014
IEEE transactions on power electronics
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Index Terms-Current-controlled inverter, voltage-controlled inverter, impedance-based analysis, harmonic stability, powerelectronics-based power system ...
The impedance-based analytical approach is employed and expanded to a meshed and balanced threephase network which is dominated by multiple current-and voltage-controlled inverters with LCL-and LC-filters ...
To overcome these limits, the Component Connection Method (CCM) is introduced for the stability analysis of AC power systems including the High-Voltage Direct Current (HVDC) transmission lines [33] . ...
doi:10.1109/tpel.2014.2306432
fatcat:cvr5aso25ravbkf2gqvkb7xfme
Harmonic Stability Assessment for Multiparalleled, Grid-Connected Inverters
2016
IEEE Transactions on Sustainable Energy
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This paper investigates the dynamic interactions of current controllers for multi-paralleled, grid-connected inverters. ...
The frequency range of effective impedance-based stability analysis is first identified. ...
Small Signal Model for the Grid Inverter In order to use the IBSC for the analysis, the small signal models of the output admittance are used [4] and a grid inverter with current controller is modeled ...
doi:10.1109/tste.2016.2551737
fatcat:2l3y7iaqxfcyhajpfmwc5pc4cm
Harmonic stability assessment for multi-paralleled, grid-connected inverters
2014
2014 International Power Electronics and Application Conference and Exposition
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This paper investigates the dynamic interactions of current controllers for multi-paralleled, grid-connected inverters. ...
The frequency range of effective impedance-based stability analysis is first identified. ...
Small Signal Model for the Grid Inverter In order to use the IBSC for the analysis, the small signal models of the output admittance are used [4] and a grid inverter with current controller is modeled ...
doi:10.1109/peac.2014.7038014
fatcat:ca6mk4clprec5a6q4iv55chzty
Stability Analysis of Grid-Connected Inverters with an LCL Filter Considering Grid Impedance
2013
Journal of Power Electronics (JPE)
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Based on the small-signal model, the d-d channel closed-loop output impedance models adopting the converter-side current control method and the grid-side current control method are derived, respectively ...
Moreover, the influence of the LCL parameters on the stability margin of grid-connected inverter controlled with converter-side current is studied. ...
Further, it is shown that the stability of the grid-connected system controlled with the converter-side current is fully determined by the d-d channel output admittance of the grid-connected inverter and ...
doi:10.6113/jpe.2013.13.5.896
fatcat:quxf4ymidzafhot3ckjh4hccgu
An active damper for stabilizing power electronics-based AC systems
2013
2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)
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To address them, this paper proposes an active damper based on a power converter with the high control bandwidth. ...
The mutual interactions in the parallel gridconnected converters coupled through the grid impedance tend to result in a number of stability and power quality problems. ...
STABILITY ANALYSIS OF PARALLEL GRID-CONNECTED CONVERTERS WITH LCL-FILTERS A. ...
doi:10.1109/apec.2013.6520441
fatcat:4maw7hq5wjftbmp2umebtzvrlq
An Active Damper for Stabilizing Power-Electronics-Based AC Systems
2014
IEEE transactions on power electronics
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To address them, this paper proposes an active damper based on a power converter with the high control bandwidth. ...
The mutual interactions in the parallel gridconnected converters coupled through the grid impedance tend to result in a number of stability and power quality problems. ...
STABILITY ANALYSIS OF PARALLEL GRID-CONNECTED CONVERTERS WITH LCL-FILTERS A. ...
doi:10.1109/tpel.2013.2278716
fatcat:2qydpuuyhjgxtcn2yd25pbzifq
Dynamic Effect of Input-Voltage Feedforward in Three-Phase Grid-Forming Inverters
2020
Energies
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Grid-connected and grid-forming inverters play essential roles in the utilization of renewable energy. ...
Furthermore, the feedforward control can remarkably affect the inverter input admittance, and therefore, impedance-based stability problems may arise at the DC interface. ...
The GNC has been used on stability analysis of grid-connected inverters and the focus has been on different topics, such as effect of the DC-link control dynamics [3] , the active damping [4] , and a ...
doi:10.3390/en13112923
fatcat:tdnwzx4cgbbirbemew3j75kgkm
A Novel Grid-Connected Harmonic Current Suppression Control for Autonomous Current Sharing Controller-Based AC Microgrids
2018
2018 IEEE Energy Conversion Congress and Exposition (ECCE)
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Since the power quality of feed-in grid current in a grid-connected microgrid (GCMG) can be influenced by a distorted utility grid, a novel feed-in grid harmonic current suppression control strategy is ...
The feed-in grid harmonic current compensation loop that cooperated with the parallel resonant controllers in voltage control loop can effectively reduce the system equivalent output admittance at selected ...
ACKNOWLEDGMENT The authors appreciate the supports by the project of Open virtual neighborhood network to connect intelligent buildings and smart objects (VICINITY) (GA# 688467), funded by the European ...
doi:10.1109/ecce.2018.8557795
fatcat:o3ikaomg3vehppm4ijmm2v2uba
Review of Impedance-Based Analysis Methods Applied to Grid-Forming Inverters in Inverter-Dominated Grids
2021
Energies
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As the use of distributed generation with power electronics-based interfaces increases, the separation between DC and AC parts of the grid is reduced. ...
In such inverter-dominated AC grids, impedance-based analysis methods are proving to be more powerful than traditional state-space-based analysis methods. ...
Conflicts of Interest: The author declares no conflict of interest. ...
doi:10.3390/en14092686
fatcat:3ftthok6ozh4poj7itcl5blbgm
Voltage Stability of Power Systems with Renewable-Energy Inverter-Based Generators: A Review
2021
Electronics
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In particular, system stability analysis will require new approaches. As such, research is currently being conducted on the stability of power systems with the inclusion of IBGs. ...
RESs are normally connected to the grid via power electronic inverters. ...
Control loops for grid-forming and grid-feeding converters [49] . In grid-connected mode, the grid normally absorbs all the power generated by IC in a microgrid. ...
doi:10.3390/electronics10020115
fatcat:5aabpvqvgneanne7l727nc7uli
Impedance based analysis and design of harmonic resonant controller for a wide range of grid impedance
2014
2014 IEEE 5th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)
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This paper investigates the effect of grid impedance variation on harmonic resonant current controllers for gridconnected voltage source converters by means of impedance-based analysis. ...
It reveals that the negative harmonic resistances tend to be derived from harmonic resonant controllers in the closed-loop output admittance of converter. ...
The open loop gain of the control loop T cf , the closed loop input admittance Y ocf, the closed loop gain G clf, and the current sensing feedback gain H which is assumed as constant gain of '1' [17] ...
doi:10.1109/pedg.2014.6878628
fatcat:i37uo5fhbnahdatvu7rb46p3vy
Two-Port Characterization and Transfer Immittances of AC-DC Converters Part II: Applications
2021
IEEE Open Journal of Power Electronics
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PV and other renewable sources, grid-connected dc microgrids and dc distributed power systems, high-voltage dc transmission, as well as hybrid ac-dc power systems. ...
Part II presents the applications of the developed models in stability analysis of different power systems that use ac-dc converters, including grid integration of converterbased generation from wind, ...
ACKNOWLEDGEMENTS The work presented in this paper was supported by multiple research sponsors, including the NSF, DOE, GE, TenneT, and China State Grid. ...
doi:10.1109/ojpel.2021.3104496
fatcat:wolkimo34vcq7ea6vinr53ivuq
Simulating the Power Electronics-Dominated Grid using Schwarz-Schur Complement based Hybrid Domain Decomposition Algorithm
[article]
2022
arXiv
pre-print
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The proposed approach is tested on an IEEE 9 bus system in which one synchronous generator is replaced with a solar PV farm through a grid-forming inverter (GFM) with an admittance control method to evaluate ...
Since conventional dual-loop GFMs are not stable when connecting to a stronger grid with a small grid inductance, a virtual inductance method is adopted to increase the equivalent inductance connecting ...
The closed-loop transfer functions of the current control loop can be represented as Gi, Lf and Cf are the filter inductance and capacitance, Lc is the grid inductance and vg is the thevetin's equivalent ...
arXiv:2212.05044v1
fatcat:dcong52oandrlbrj5ji6wqp5ii
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