TY - JOUR
T1 - System-level performance and robustness of the grid-forming hybrid angle control
AU - Tayyebi, Ali
AU - Magdaleno, Alan
AU - Vettoretti, Denis
AU - Chen, Meng
AU - Prieto-Araujo, Eduardo
AU - Anta, Adolfo
AU - Dörfler, Florian
PY - 2022/11
Y1 - 2022/11
N2 - This paper investigates the implementation and application of the multi-variable grid-forming hybrid angle control (HAC) for high-power converters in transmission grids. We explore the system-level performance and robustness of HAC concept in contrast to other grid-forming schemes i.e., power-frequency droop and matching controls. Our findings suggests that, similar to the ac-based droop control, HAC enhances the small-signal frequency stability in low-inertia power grids, and akin to the dc-based matching control, HAC exhibits robustness when accounting for the practical limits of the converter systems. Thus, HAC combines the aforementioned complementary advantageous. Furthermore, we show how retuning certain control parameters of the grid-forming controls improves the frequency performance. Last, as separate contributions, we introduce an alternative control augmentation that enhances the robustness and provide theoretical guidelines on extending the stability certificates of HAC to multi-converter systems.
AB - This paper investigates the implementation and application of the multi-variable grid-forming hybrid angle control (HAC) for high-power converters in transmission grids. We explore the system-level performance and robustness of HAC concept in contrast to other grid-forming schemes i.e., power-frequency droop and matching controls. Our findings suggests that, similar to the ac-based droop control, HAC enhances the small-signal frequency stability in low-inertia power grids, and akin to the dc-based matching control, HAC exhibits robustness when accounting for the practical limits of the converter systems. Thus, HAC combines the aforementioned complementary advantageous. Furthermore, we show how retuning certain control parameters of the grid-forming controls improves the frequency performance. Last, as separate contributions, we introduce an alternative control augmentation that enhances the robustness and provide theoretical guidelines on extending the stability certificates of HAC to multi-converter systems.
KW - Frequency stability
KW - Grid-forming control design
KW - Low-inertia power system
UR - http://www.scopus.com/inward/record.url?scp=85134880618&partnerID=8YFLogxK
U2 - 10.1016/j.epsr.2022.108503
DO - 10.1016/j.epsr.2022.108503
M3 - Journal article
SN - 0378-7796
VL - 212
JO - Electric Power Systems Research
JF - Electric Power Systems Research
M1 - 108503
ER -