Integrated Control Strategy Supporting the Optimal Management of a 3-kW Vanadium Redox Flow Battery: a Case Study for an Islanded DC Microgrid

This paper presents an integrated control strategy for the decarbonization of an islanded DC microgrid including one micro gas turbines (MGT), an organic photovoltaic system, a wave energy converter and a vanadium redox flow battery in the service of the upstream auxiliary loads of an off-shore oil rig. An optimized energy management system is proposed to control the microgrid power flow with the objective of minimizing the CO 2 emission from the supporting MGT while exploiting the flexibility of control of the specific storage technology to achieve high efficiency and large energy capacity. The novelty relies on a mixed use of techniques, some of which typical of energy system planning and other of primary controls, because currently the grid under study only operates on 2 MGTs and we had to provide the comprehensive solution to verify how to decarbonize such services for the near future, along with its economics.