2019/12/16 by Jérémie Kreiss, Kreiss, Jérémie, Jean‐François Trégouët +9
Engineering · #Control and Stability of Dynamical Systems #FOS: Electrical engineering #Microgrid Control and Optimization #Multilevel Inverters and Converters #Systems and Control (eess.SY) #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.1912.07703
openalex publication_date 2019/12/16 · openalex created_date 2019/12/26 · openalex updated_date 2026/07/28
In this paper, parallel interconnection of DC/DC converters is considered. For this topology of converters feeding a common load, it has been recently shown that dynamics related to voltage regulation can be completely separated from the current distribution without considering frequency separation arguments, which inevitably limits achievable performance. Within the Hamiltonian framework, this paper shows that this separation between current distribution and voltage regulation is linked to the energy conservative quantities: the Casimir functions. Furthermore, a robust control law is given in this framework to get around the fact that the load might be unknown. In this paper, we also ensure that the system converges to the optimal current repartition, without requiring explicit expression of the optimal locus. Finally, resulting control law efficiency is assessed through experimental results.