Smart Multiport Bidirectional Non-Isolated DC-DC Converter for Solar PV-Battery Systems

Solar energy has become one of the most significant renewable energy options, Because of the decline in fossil fuels. Conversion of Solar energy into Electric energy has been harvested through DC-DC Converters and stored in Batteries. A “Smart Multiport Bidirectional non isolated DC-DC Converter for PV-Battery Systems” has been proposed in this paper. One port is for unidirectional traffic, while the other is for bidirectional traffic. Previously, a SISO (single input single output) power flow system used, which resulted in power quality problems that were beyond the PV converters settings. In order to resolve the power quality problem and provide continuous supply, it has been changed into a multiport device with the use of LES (Local energy storage). High reliability, high power density, and fewer conversion stages are the advantages of this modified technique. A simulation work performed for all modes of proposed converter for low voltage levels. Simulation result ensures the satisfactory performance of new converter. IOT is introduced in this proposed converter to maintain a continuous power flow. So that the entire system can be monitored and regulated. IOT is an external module that can be added or removed based on specifications that vary by venue, context, and other factors. A new model has been implemented using 24V solar PV panel, 12V battery and the bidirectional power flow achieved when solar energy fails to charge LES.