Enhancement Techniques to Design a Standalone PV System for Residential Application

Standard design procedures are available to design a standalone solar photovoltaic (SSPV) system. However, it does not include the impact of partial shading on the PV array. The harvested power may reduce appreciably if the PV array is partly or completely shaded. The reduction is to be compensated by increasing the size of the PV array and this increases the overall cost of the system. It is therefore necessary to devise techniques to mitigate the impact of partial shading and enhance the power generation under such conditions. This chapter introduces and explains various strategies (shade resilient arrangement, global peak detecting algorithm, and reduced device count inverters) to incorporate along with the standard design procedures to increase the power generated by the SSPV system. Enhanced performance reduces the return on investment (ROI) period, thereby making the standalone PV system more attractive.