5 papers
Decentralised Plug-and-Play Stability Conditions for AC Grids-Part II: Unstable Subsystems
Liam Hallinan, Ioannis Lestas
Part I of this paper presented a decentralised framework for certifying small-signal stability in AC grids using frequency-domain quadratic constraints on individual grid subsystem…
Decentralised Plug-and-Play Stability Conditions for AC Grids-Part I
Liam Hallinan, Ioannis Lestas
The rise of renewable generation in AC power systems calls for small-signal stability assessment methods that do not rely on centralised, system-wide models. In this two-part paper…
Unstable Poles Arising in AC Power Grid Subsystem Representations
Liam Hallinan, Ioannis Lestas
Recent small-signal stability studies of AC grids have shifted towards analysing power systems as interconnections of subsystems and leveraging their input-output properties to der…
An Optimal Control Interpretation of Augmented Distributed Optimization Algorithms
Liam Hallinan, Ioannis Lestas
Distributed optimization algorithms are used in a wide variety of problems involving complex network systems where the goal is for a set of agents in the network to solve a network…
Inverse Optimal Control and Passivity-Based Design for Converter-Based Microgrids
Liam Hallinan, Jeremy D. Watson, Ioannis Lestas
Passivity-based approaches have been suggested as a solution to the problem of decentralised control design in many multi-agent network control problems due to the plug- and-play f…