A power consensus algorithm for DC microgrids
Event details
| Date | 18.01.2018 |
| Hour | 16:00 › 17:00 |
| Speaker | Prof. Claudio De Persis, Faculty of Science and Engineering, University of Groningen |
| Location | |
| Category | Conferences - Seminars |
Abstract: With the proliferation of renewable sources and the interest in preventing inefficient power conversions, there is an increasing attention towards DC microgrids. Similarly to AC microgrids, two key requirements on DC microgrids performance are a fair sharing of the loads among the power sources and adequate voltage levels.
In this talk, I describe the so-called power consensus algorithm for a resistive DC network in the presence of constant impedance, constant current and constant power loads. The proposed algorithm features a communication network over which the source nodes exchange information about the instantaneous powers, and which is used to adjust the injected currents accordingly. This gives rise to a nonlinear consensus-like system of differential-algebraic equations that is analyzed via Lyapunov functions inspired by the physics of the system. The analysis shows convergence to the set of equilibria, where weighted power consensus is achieved, as well as preservation of the weighted geometric mean of the source voltages.
Bio: Claudio De Persis is a Professor at the Engineering and Technology Institute, Faculty of Science and Engineering, University of Groningen, the Netherlands and affiliated with the Jan Willems Center for Systems and Control at the same university. He received the Laurea degree in Electronic Engineering in 1996 and the Ph.D. degree in System Engineering in 2000 both from the University of Rome ‘‘La Sapienza’’, Italy.
Previously he held faculty positions at the Department of Mechanical Automation and Mechatronics, University of Twente and the Department of Computer, Control, and Management Engineering, University of Rome ‘‘La Sapienza’’. He was a Research Associate at the Department of Systems Science and Mathematics, Washington University, St. Louis, MO, USA, in 2000–2001, and at the Department of Electrical Engineering, Yale University, New Haven, CT, USA, in 2001–2002.
His main research interest is in control theory, and his current research focuses on dynamical networks, cyber-physical systems, smart grids and resilient control. He was an Editor of the International Journal of Robust and Nonlinear Control (2006-2013), an Associate Editor of the IEEE Transactions on Control Systems Technology (2010-2015), and of the IEEE Transactions on Automatic Control (2012-2015). He is currently an Associate Editor of Automatica (2013-present) and of IEEE Control Systems Letters (2017-present).
In this talk, I describe the so-called power consensus algorithm for a resistive DC network in the presence of constant impedance, constant current and constant power loads. The proposed algorithm features a communication network over which the source nodes exchange information about the instantaneous powers, and which is used to adjust the injected currents accordingly. This gives rise to a nonlinear consensus-like system of differential-algebraic equations that is analyzed via Lyapunov functions inspired by the physics of the system. The analysis shows convergence to the set of equilibria, where weighted power consensus is achieved, as well as preservation of the weighted geometric mean of the source voltages.
Bio: Claudio De Persis is a Professor at the Engineering and Technology Institute, Faculty of Science and Engineering, University of Groningen, the Netherlands and affiliated with the Jan Willems Center for Systems and Control at the same university. He received the Laurea degree in Electronic Engineering in 1996 and the Ph.D. degree in System Engineering in 2000 both from the University of Rome ‘‘La Sapienza’’, Italy.
Previously he held faculty positions at the Department of Mechanical Automation and Mechatronics, University of Twente and the Department of Computer, Control, and Management Engineering, University of Rome ‘‘La Sapienza’’. He was a Research Associate at the Department of Systems Science and Mathematics, Washington University, St. Louis, MO, USA, in 2000–2001, and at the Department of Electrical Engineering, Yale University, New Haven, CT, USA, in 2001–2002.
His main research interest is in control theory, and his current research focuses on dynamical networks, cyber-physical systems, smart grids and resilient control. He was an Editor of the International Journal of Robust and Nonlinear Control (2006-2013), an Associate Editor of the IEEE Transactions on Control Systems Technology (2010-2015), and of the IEEE Transactions on Automatic Control (2012-2015). He is currently an Associate Editor of Automatica (2013-present) and of IEEE Control Systems Letters (2017-present).
Practical information
- General public
- Free