Operation and Control of a PV Converter with Enhanced Stability Based on Virtual Impedance Emulation in a Pseudo Resistive Grid

Vikram Roy Chowdhury; Akanksha Singh

doi:10.1109/APEC43580.2023.10131316

Operation and Control of a PV Converter with Enhanced Stability Based on Virtual Impedance Emulation in a Pseudo Resistive Grid

Vikram Roy Chowdhury, Akanksha Singh

Power Systems Engineering

Research output: Contribution to conference › Paper

2 Scopus Citations

Abstract

A three-phase grid-connected photo-voltaic converter is investigated to enhance its operational capabilities and stability margins. These converters are generally connected to the grid with an inductive impedance. In this paper the possibility of using a resistive impedance to enhance the stability of the overall system has been investigated. To reduce the losses in the system, rather than using a real resistance, a virtual resistance is emulated inside the control architecture to ensure resistive power transfer between two sources. The stability results with inductive and resistive grids are presented based on the previously reported frequency response. The overall system is modeled via MATLAB/Simulink and several important case study results are presented in this paper to verify the efficacy of the proposed architecture.

Original language	American English
Pages	3099-3104
Number of pages	6
DOIs	https://doi.org/10.1109/APEC43580.2023.10131316
State	Published - 2023
Event	2023 IEEE Applied Power Electronics Conference and Exposition (APEC) - Orlando, Florida Duration: 19 Mar 2023 → 23 Mar 2023

Conference

Conference	2023 IEEE Applied Power Electronics Conference and Exposition (APEC)
City	Orlando, Florida
Period	19/03/23 → 23/03/23

NREL Publication Number

NREL/CP-5D00-84679

Keywords

grid-forming controls
power control
resistive grid
three-phase grid connected inverter

Access to Document

10.1109/APEC43580.2023.10131316

Cite this

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title = "Operation and Control of a PV Converter with Enhanced Stability Based on Virtual Impedance Emulation in a Pseudo Resistive Grid",

abstract = "A three-phase grid-connected photo-voltaic converter is investigated to enhance its operational capabilities and stability margins. These converters are generally connected to the grid with an inductive impedance. In this paper the possibility of using a resistive impedance to enhance the stability of the overall system has been investigated. To reduce the losses in the system, rather than using a real resistance, a virtual resistance is emulated inside the control architecture to ensure resistive power transfer between two sources. The stability results with inductive and resistive grids are presented based on the previously reported frequency response. The overall system is modeled via MATLAB/Simulink and several important case study results are presented in this paper to verify the efficacy of the proposed architecture.",

keywords = "grid-forming controls, power control, resistive grid, three-phase grid connected inverter",

author = "{Roy Chowdhury}, Vikram and Akanksha Singh",

year = "2023",

doi = "10.1109/APEC43580.2023.10131316",

language = "American English",

pages = "3099--3104",

note = "2023 IEEE Applied Power Electronics Conference and Exposition (APEC) ; Conference date: 19-03-2023 Through 23-03-2023",

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T1 - Operation and Control of a PV Converter with Enhanced Stability Based on Virtual Impedance Emulation in a Pseudo Resistive Grid

AU - Roy Chowdhury, Vikram

AU - Singh, Akanksha

PY - 2023

Y1 - 2023

N2 - A three-phase grid-connected photo-voltaic converter is investigated to enhance its operational capabilities and stability margins. These converters are generally connected to the grid with an inductive impedance. In this paper the possibility of using a resistive impedance to enhance the stability of the overall system has been investigated. To reduce the losses in the system, rather than using a real resistance, a virtual resistance is emulated inside the control architecture to ensure resistive power transfer between two sources. The stability results with inductive and resistive grids are presented based on the previously reported frequency response. The overall system is modeled via MATLAB/Simulink and several important case study results are presented in this paper to verify the efficacy of the proposed architecture.

AB - A three-phase grid-connected photo-voltaic converter is investigated to enhance its operational capabilities and stability margins. These converters are generally connected to the grid with an inductive impedance. In this paper the possibility of using a resistive impedance to enhance the stability of the overall system has been investigated. To reduce the losses in the system, rather than using a real resistance, a virtual resistance is emulated inside the control architecture to ensure resistive power transfer between two sources. The stability results with inductive and resistive grids are presented based on the previously reported frequency response. The overall system is modeled via MATLAB/Simulink and several important case study results are presented in this paper to verify the efficacy of the proposed architecture.

KW - grid-forming controls

KW - power control

KW - resistive grid

KW - three-phase grid connected inverter

U2 - 10.1109/APEC43580.2023.10131316

DO - 10.1109/APEC43580.2023.10131316

M3 - Paper

SP - 3099

EP - 3104

T2 - 2023 IEEE Applied Power Electronics Conference and Exposition (APEC)

Y2 - 19 March 2023 through 23 March 2023

ER -

Operation and Control of a PV Converter with Enhanced Stability Based on Virtual Impedance Emulation in a Pseudo Resistive Grid

Abstract

Conference

NREL Publication Number

Keywords

Access to Document

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