TY - JOUR
T1 - Comparative small-signal evaluation of advanced grid-forming control techniques
AU - Aragon, D. A.
AU - Unamuno, E.
AU - Ceballos, S.
AU - Barrena, J. A.
N1 - Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2022/10
Y1 - 2022/10
N2 - 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.
AB - 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.
KW - Grid-forming control
KW - Inertia emulation
KW - Low-inertia power systems
KW - Small signal analysis
KW - Synchronous machine emulation
UR - http://www.scopus.com/inward/record.url?scp=85132523172&partnerID=8YFLogxK
U2 - 10.1016/j.epsr.2022.108154
DO - 10.1016/j.epsr.2022.108154
M3 - Article
AN - SCOPUS:85132523172
SN - 0378-7796
VL - 211
JO - Electric Power Systems Research
JF - Electric Power Systems Research
M1 - 108154
ER -