26 citations · 39 across the 9 of their papers we have counts for
8 papers · 1 filter
A Unifying Passivity-Based Framework for Pressure and Volume Flow Rate Control in District Heating Networks
Felix Strehle, Juan E. Machado, Michele Cucuzzella +3
A fundamental precondition for the secure and efficient operation of district heating networks (DHNs) is a stable hydraulic behavior. However, the ongoing transition towards a sust…
Decentralized temperature and storage volume control in multi-producer district heating
Juan E. Machado, Joel Ferguson, Michele Cucuzzella +1
Modern district heating technologies have a great potential to make the energy sector more flexible and sustainable due to their capabilities to use energy sources of varied nature…
Adaptive Control for Flow and Volume Regulation in Multi-Producer District Heating Systems
Juan E. Machado, Michele Cucuzzella, Nina Pronk +1
Flow and storage volume regulation is essential for the adequate transport and management of energy resources in district heating systems. In this letter, we propose a novel and su…
Modeling and Passivity Properties of Multi-Producer District Heating Systems
Juan E. Machado, Michele Cucuzzella, Jacquelien Scherpen
We propose a comprehensive nonlinear ODE-based thermo-hydraulic model of a district heating system featuring several heat producers, consumers and storage devices which are interco…
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…