Comparison of Adaptive P/ω Droop Strategies for Intermittent Energy Sources in Emergency Islanded Operation

Candelaria Utrilla (1) , Vincent Debusschere (1) , Jérôme Buire (2) , Hossein Dehghani Tafti (3) , Josep Pou (4) , Nouredine Hadjsaid (1, 4)

1 G2Elab-SYREL - G2Elab-SYstèmes et Réseaux ELectriques
2 G2ELab - Laboratoire de Génie Electrique de Grenoble
3 UWA - The University of Western Australia
4 NTU - Nanayang Technological University

Islanded operation is a key tool to improve the reliability and operational resilience of distribution grids. To enable islanded operation with minimal hardware changes, it is convenient to operate already installed PV units in droop-controlled grid-forming mode. This paper analyzes the main adaptive strategies that allow to implement the P/ω droop principle in double-stage units interfacing intermittent energy sources. The advantages and unwanted behaviors of each strategy are illustrated through a thorough simulation-based evaluation, which leads to a set of guidelines for the design of novel improved adaptive P/ω droop strategies.

Keywords: droop control grid-forming islanded operation reliability renewable energy sources resilience; droop control; grid-forming; islanded operation; reliability; renewable energy sources; resilience

Domains: Engineering Sciences [physics]

Candelaria Utrilla, Vincent Debusschere, Jérôme Buire, Hossein Dehghani Tafti, Josep Pou, et al.. Comparison of Adaptive P/ω Droop Strategies for Intermittent Energy Sources in Emergency Islanded Operation. International Journal of Electrical Power & Energy Systems, 2024, 157, ⟨10.1016/j.ijepes.2024.109786⟩. ⟨hal-04455217⟩