Power compensation system for partially shaded PV array using electric double layer capacitors

In this paper, the power compensation and control system for the partially shaded photovoltaic (PV) array is presented. The proposed system utilizes electric double layer capacitors (EDLCs), which has some advantages, e.g. the high density of output power, the long lifetime, compared with other energy storage devices. This system is constructed by the simple combination of EDLCs-bank and a relay. Comparing with the prevalent measures, the proposed system can realize more efficient usage of generation power from PV array. The feasibility of the system is investigated and verified from some simulation results.