Control Allocation with Passivity for DC Microgrids – CASIMIR

The CASIMIR project is aimed at addressing critical challenges in the energy transition, particularly in the context of distributed energy production and storage using direct current (DC) microgrids. With renewable energy sources like solar and wind becoming more prevalent, traditional alternating current (AC) systems are increasingly being replaced by DC microgrids to minimize energy loss and increase efficiency. However, DC microgrids pose significant control challenges, particularly in managing multiport converters, which integrate various energy sources and storage units.

The project focuses on two main objectives: (1) developing control allocation methods for multiport converters, and (2) enhancing passivation techniques to ensure stability in interconnected DC microgrids. Control allocation aims to distribute power effectively among multiple sources while maintaining voltage stability, a challenge exacerbated by the complex behavior of multiport converters. Passivation ensures that energy flows remain stable at key interconnection points, which is critical for global stability of microgrids.

Over 48 months, CASIMIR will explore new methodologies for these objectives, utilizing advanced control theories such as nonlinear geometric control and the port-Hamiltonian framework. The project is expected to significantly advance the field of power electronics, contributing to more intelligent energy management in decentralized grids and thus supporting the broader ecological transition.