MIMO impedance modelling of grid following inverter with local voltage control
MIMO impedance modelling of grid following inverter with local voltage control
In recent years, in response to the global climate crisis, inverter-based energy resources (IBRs) have been massively integrated into power systems. Their effective operation and control lie on a wide variety of inner, outer, and synchronization control loops which have been reported to interact and compromise power system’s stability. In this study, a Multi-Input-Multi-Output (MIMO) impedance model for a three-phase grid following inverter with local voltage control has been proposed. This linear time invariant model takes into consideration the delay and the coupling between the control blocks and serves as a simpler and more computationally efficient method to capture oscillations and interactions in time and frequency domain. It can predict instabilities caused by the different control layers along with the frequencies of the oscillations. The effect of the delay, the current control tuning parameters and the interactions between the current controller and the local voltage controller have been highlighted. The results have been validated in time and frequency domain simulations in SIMULINK environment.
GRID-FOLLOWING (GFL) INVERTER, MIMO IMPEDANCE MODELLING, LOCAL VOLTAGE CONTROL, FAST-INTERACTIONS CONVERTER-DRIVEN STABILITY (FICDS), IMPEDANCE BASED ANALYSIS
Saridaki, Georgia
372ad773-adc3-4146-9c72-34a7f8e2b628
Kotsampopoulos, Panos
5e386e8f-aa83-4798-a8c3-c4ab65390fe9
Hatziargyriou, Nikos
a2e47170-f7f4-4900-9b3f-762eb9a2af1b
Luo, Xi
cfaf6d5c-15fa-4c03-bdca-9e3d80ea448a
Batzelis, Efstratios
2a85086e-e403-443c-81a6-e3b4ee16ae5e
Singh, Abhinav
6df7029f-21e3-4a06-b5f7-da46f35fc8d3
November 2024
Saridaki, Georgia
372ad773-adc3-4146-9c72-34a7f8e2b628
Kotsampopoulos, Panos
5e386e8f-aa83-4798-a8c3-c4ab65390fe9
Hatziargyriou, Nikos
a2e47170-f7f4-4900-9b3f-762eb9a2af1b
Luo, Xi
cfaf6d5c-15fa-4c03-bdca-9e3d80ea448a
Batzelis, Efstratios
2a85086e-e403-443c-81a6-e3b4ee16ae5e
Singh, Abhinav
6df7029f-21e3-4a06-b5f7-da46f35fc8d3
Saridaki, Georgia, Kotsampopoulos, Panos, Hatziargyriou, Nikos, Luo, Xi, Batzelis, Efstratios and Singh, Abhinav
(2024)
MIMO impedance modelling of grid following inverter with local voltage control.
MedPower2024: 14th Mediterranean Conference on Power Generation, Transmission, Distribution and Energy Conversion, Royal Olympic Hotel, Athens, Greece.
03 - 06 Nov 2024.
6 pp
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
In recent years, in response to the global climate crisis, inverter-based energy resources (IBRs) have been massively integrated into power systems. Their effective operation and control lie on a wide variety of inner, outer, and synchronization control loops which have been reported to interact and compromise power system’s stability. In this study, a Multi-Input-Multi-Output (MIMO) impedance model for a three-phase grid following inverter with local voltage control has been proposed. This linear time invariant model takes into consideration the delay and the coupling between the control blocks and serves as a simpler and more computationally efficient method to capture oscillations and interactions in time and frequency domain. It can predict instabilities caused by the different control layers along with the frequencies of the oscillations. The effect of the delay, the current control tuning parameters and the interactions between the current controller and the local voltage controller have been highlighted. The results have been validated in time and frequency domain simulations in SIMULINK environment.
Text
MedPower2024_full_paper_0993
- Accepted Manuscript
More information
Accepted/In Press date: 29 August 2024
Published date: November 2024
Venue - Dates:
MedPower2024: 14th Mediterranean Conference on Power Generation, Transmission, Distribution and Energy Conversion, Royal Olympic Hotel, Athens, Greece, 2024-11-03 - 2024-11-06
Keywords:
GRID-FOLLOWING (GFL) INVERTER, MIMO IMPEDANCE MODELLING, LOCAL VOLTAGE CONTROL, FAST-INTERACTIONS CONVERTER-DRIVEN STABILITY (FICDS), IMPEDANCE BASED ANALYSIS
Identifiers
Local EPrints ID: 495950
URI: http://eprints.soton.ac.uk/id/eprint/495950
PURE UUID: 71d92d04-a352-4289-8344-ffce5880c118
Catalogue record
Date deposited: 28 Nov 2024 17:31
Last modified: 30 Nov 2024 03:06
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Contributors
Author:
Georgia Saridaki
Author:
Panos Kotsampopoulos
Author:
Nikos Hatziargyriou
Author:
Xi Luo
Author:
Efstratios Batzelis
Author:
Abhinav Singh
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