17 citations · 35 across the 8 of their papers we have counts for
9 papers
DC Microgrids with Nested Nonlinear Distributed Control: Scalable Large-Signal Stability and Voltage Containment
Cornelia Skaga, Mahdieh S. Sadabadi, Gilbert Bergna-Diaz
This paper investigates a cyber-physical DC microgrid employing a nonlinear distributed consensus-based control scheme for coordinated integration and management of distributed gen…
Stability of a DC Microgrid with a Nonlinear Nested Control Framework: The Fast Communication Scenario
Cornelia Skaga, Mahdieh S. Sadabadi, Gilbert Bergna-Diaz
As modern power systems continue to evolve into multi-agent, converter-dominated systems that demand reliable, stable, and optimal control architectures within an expandable framew…
Large-Signal Stability Guarantees for a DC Microgrid with Nested Nonlinear Distributed Control: The Slow Communication Scenario
Cornelia Skaga, Mahdieh S. Sadabadi, Gilbert Bergna-Diaz
The increasing integration of renewable energy sources into electrical grids necessitates a paradigm shift toward advanced control schemes that guarantee safe and stable operations…
Optimal Steady-State Secondary Control of MT-HVdc Grids with Reduced Communications
Babak Abdolmaleki, Gilbert Bergna-Diaz
In this paper, we propose a centralized secondary control for the real-time steady-state optimization of multi-terminal HVdc grids under voltage and current limits. First, we prese…
Distributed Optimization for Reactive Power Sharing and Stability of Inverter-Based Resources Under Voltage Limits
Babak Abdolmaleki, John W. Simpson-Porco, Gilbert Bergna-Diaz
Reactive power sharing and containment of voltages within limits for inverter-based resources (IBRs) are two important, yet coupled objectives in ac networks. In this article, we p…
Distributed Control and Optimization of DC Microgrids: A Port-Hamiltonian Approach
Babak Abdolmaleki, Gilbert Bergna-Diaz
This article proposes a distributed secondary control scheme that drives a dc microgrid to an equilibrium point where the generators share optimal currents, and their voltages have…
PID passivity-based droop control of power converters: Large-signal stability, robustness and performance
Daniele Zonetti, Gilbert Bergna-Diaz, Romeo Ortega +1
We present a full review of PID passivity-based controllers (PBC) applied to power electronic converters, discussing limitations, unprecedented merits and potential improvements in…
Dynamics and Stability of Meshed Multiterminal HVDC Networks
Santiago Sanchez, Alejandro Garces, Gilbert Berna +1
This paper investigates the existence of an equilibrium point in multiterminal HVDC (MT-HVDC) grids, assesses its uniqueness and defines conditions to ensure its stability. An offs…
Generalized Voltage-based State-Space Modelling of Modular Multilevel Converters with Constant Equilibrium in Steady-State
Gilbert Bergna-Diaz, Julian Freytes, Xavier Guillaud +2
This paper demonstrates that the sum and difference of the upper and lower arm voltages are suitable variables for deriving a generalized state-space model of an MMC which settles…