26 citations · 39 across the 9 of their papers we have counts for
4 papers · 1 filter
On the Existence and Long-Term Stability of Voltage Equilibria in Power Systems with Constant Power Loads
Alexey S. Matveev, Juan E. Machado, Romeo Ortega +2
Voltage instability is a major threat in power system operation. The growing presence of constant power loads significantly aggravates this issue, hence motivating the development…
Active Damping of a DC Network with a Constant Power Load: An Adaptive Passivity-based Control Approach
Juan E. Machado, José Arocas-Pérez, Wei He +2
This paper proposes a nonlinear, adaptive controller to increase the stability margin of a direct-current (DC) small-scale electrical network containing a constant power load, whos…
On Generation of Virtual Outputs via Signal Injection: Application to Observer Design for Electromechanical Systems
Bowen Yi, Romeo Ortega, Houria Siguerdidjane +2
Probing signal injection is a well-established technique to extract additional information from a weakly (or non) observable dynamical system. Using averaging theory, a framework t…
Power-Controlled Hamiltonian Systems: Application to Electrical Systems with Constant Power Loads
Pooya Monshizadeh, Juan E. Machado, Romeo Ortega +1
We study a type of port-Hamiltonian system, in which the controller or disturbance is not applied to the flow variables, but to the systems power, a scenario that appears in many p…