Current-Controlled Synchronverter: A Grid Fault Tolerant Grid Forming Inverter

A synchronverter (SV) equipped with an output admittance synthesizer is modified to avoid the usual transient instability of grid forming inverters in presence large grid disturbances, keeping the injected currents at safe values. The proposal consists of changing the control objective of the SV: in...

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Published in:IEEE transactions on industrial electronics (1982) 2024-04, Vol.71 (4), p.3233-3241
Main Authors: Busada, Claudio, Gomez Jorge, Sebastian, Solsona, Jorge A.
Format: Article
Language:English
Subjects:
Active control
Admittance
Algorithms
Fault tolerance
Grid following inverter (GFLI)
grid forming inverter (GFMI)
Impedance
Inverters
Phase locked loops
Power system stability
Synchronism
Synchronization
synchronverter (SV)
virtual synchronous machine
Voltage control
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cited_by cdi_FETCH-LOGICAL-c292t-550398bd91af1a09b7c42bc15430dfb8c4931c14efac67a85e8fef0a83100e953
cites cdi_FETCH-LOGICAL-c292t-550398bd91af1a09b7c42bc15430dfb8c4931c14efac67a85e8fef0a83100e953
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container_title IEEE transactions on industrial electronics (1982)
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creator Busada, Claudio
Gomez Jorge, Sebastian
Solsona, Jorge A.
description A synchronverter (SV) equipped with an output admittance synthesizer is modified to avoid the usual transient instability of grid forming inverters in presence large grid disturbances, keeping the injected currents at safe values. The proposal consists of changing the control objective of the SV: instead of controlling the injected active and reactive powers, the injected active and reactive currents are controlled (as in a grid following inverter). The resulting system [called here current controlled SV, (CCSV)], injects balanced currents, even against asymmetric faults. The CCSV is capable of operating both in island mode and in grid connected mode, and can switch between these modes without prior synchronization. Like the SV, the CCSV does not use a dedicated algorithm for synchronization (such as a phase-locked loop).
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1557-9948
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source IEEE Xplore (Online service)
subjects Active control
Admittance
Algorithms
Fault tolerance
Grid following inverter (GFLI)
grid forming inverter (GFMI)
Impedance
Inverters
Phase locked loops
Power system stability
Synchronism
Synchronization
synchronverter (SV)
virtual synchronous machine
Voltage control
title Current-Controlled Synchronverter: A Grid Fault Tolerant Grid Forming Inverter
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