Professor Jacquelien Scherpen

University of Groningen, The Netherlands

Jacquelien M. A. Scherpen received the M.Sc. and Ph.D. degrees in applied mathematics from the University of Twente, Enschede, The Netherlands, in 1990 and 1994, respectively. She was with Delft University of Technology, The Netherlands, from 1994 to 2006. Since September 2006, she is a professor at the University of Groningen, at the Engineering and Technology institute Groningen (ENTEG) of the Faculty of Mathematics and Natural Sciences, The Netherlands. Since 2013 she is the scientific director of ENTEG. She is a member of the Jan C. Willems Center for Systems and Control of the University of Groningen, and board member of the Dutch Institute of Systems and Control. She has held visiting research positions at the University of Tokyo, and Kyoto University, Japan, Université de Compiegne, and SUPELEC, Gif-sur-Yvette, France, and the Old Dominion University, Norfolk, VA, USA. She has been an Associate Editor of the IEEE Transactions on Automatic Control, the International Journal of Robust and Nonlinear Control (IJRNC) and the IMA Journal of Mathematical Control and Information. She is on the editorial board of the IJRNC. Her current research interests include (linear and nonlinear) model reduction methods, nonlinear control methods, modeling and control of physical systems using the concepts of passivity and dissipativity, and distributed optimal control applications for smart energy system.

Robust distributed and passivity based control in DC micro grids with ZIP loads
In this talk we focus on direct current (DC) microgrids. We propose a new distributed control scheme, achieving current sharing and average voltage regulation. The considered dc microgrid is composed of several distributed generation units (DGUs) interconnected through resistive inductive power lines. Each DGU includes a generic energy source that supplies a local current load through a dc-dc buck converter. The load models represent the large class of ZIP loads. The proposed distributed control scheme achieves current sharing and average voltage regulation, independently of the initial condition of the controlled microgrid and the values of the loads. Moreover, the proposed solution  is independent of the microgrid parameters and the topology of the used communication network, facilitating plug-and-play capabilities. Global convergence to a desired steady state is proven and simulations indicate a good performance. Additionally, we consider other types of DC-DC converters, and study novel passivity based control methods called input shaping and output shaping  for these converters. Then, these closed loop systems are embedded in a DC grid setting and the overall behaviour is analysed.