Sizing and power management for a stand-alone PV system in cold climate

In this paper, we present a stand-alone PV/Battery system feeding a DC load under variable climatic conditions and load profile. A Lead-acid battery has been used to compensate the intermittent nature of solar energy. The PV system has been designed An MPPT method based on the optimal array conductance has been used. Moreover, the battery SOC has been used to protect the battery from damage. The entire system was applied to a typical house in the north of Quebec (Canada). The simulation results show that the proposed system guarantees a safe power transfer to the battery storage and the MPPT technique responds perfectly to rapid solar irradiance changes.