Title
Comparative small-signal evaluation of advanced grid-forming control techniquesxmlui.dri2xhtml.METS-1.0.item-contributorOtherinstitution
https://ror.org/02fv8hj62Version
http://purl.org/coar/version/c_ab4af688f83e57aa
Rights
© 2022 Elsevier B.V. All rights reserved.Access
http://purl.org/coar/access_right/c_f1cfPublisher’s version
https://doi.org/10.1016/j.epsr.2022.108154Published at
Electric Power Systems Research Vol. 211. N. artículo 108154, 2022Publisher
Elsevier B.V.Keywords
Grid-forming control
Inertia emulation
Low-inertia power systems
Synchronous machine emulation ... [+]
Inertia emulation
Low-inertia power systems
Synchronous machine emulation ... [+]
Grid-forming control
Inertia emulation
Low-inertia power systems
Synchronous machine emulation
Small signal analysis [-]
Inertia emulation
Low-inertia power systems
Synchronous machine emulation
Small signal analysis [-]
Abstract
This paper presents the small-signal modelling and analysis of the most recent grid-forming control techniques, namely the matching control (MC) and the dispatchable virtual oscillator (dVOC). These a ... [+]
This paper presents the small-signal modelling and analysis of the most recent grid-forming control techniques, namely the matching control (MC) and the dispatchable virtual oscillator (dVOC). These are compared to more classical SME techniques such as synchronverters (SV) and voltage-controlled virtual synchronous machines (VCVSM) under different grid conditions. In addition to studying the time-domain response (inertial behaviour, steady-state operation point, etc.), a thorough evaluation of the dominant eigenvalues of each control is carried out by obtaining the participation factors and the sensitivity to physical and control parameter variations. Simulation results are obtained for a grid-forming converter connected to a dynamic grid model that emulates different properties of low-inertia power systems—e.g. primary reserve, inertial strength, coupling strength, etc. Besides, hardware-in-the-loop experimental results are presented to validate the analysis. [-]
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