A novel distributed photovoltaic power architecture using advanced Li-ion batteries

In this paper a novel distributed photovoltaic power architecture using advanced lithium-ion batteries is proposed, which is mainly composed of a switched mode power converter and a power management system. This system exhibits the advantages of better protection and more efficient control on charge/discharge of the battery than the traditional photovoltaic power system. Furthermore, better use of solar energy and energy management system can be done. The key point of energy management system is to control the dc-to-dc converter with an MPPT control strategy and to control energy transfer between the photovoltaic panel, the battery and the load. Associated in parallel, power modules M_{PV_STOR} allow higher power depending on the application. In addition, new algorithms are implemented to optimize the use of the battery making the overall system more reliable.