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Critical Analysis and Performance Evaluation of Solar PV-System Implementing Non- Isolated DC-DC Converters

In a solar PV system, the use of dc-dc converters to regulate the dc output of the panels is inevitable. Therefore, selecting an appropriate converter is a crucial design concern for the optimal operation of the system. Non-isolated dc-dc converters are compact in design and have better efficiency. This work presents a comprehensive and concise analysis of the PV system implementing selected conventional and advanced non-isolated dc-dc converters. Mathematical and simulation modelling of the components has been carried out. The sizes of passive elements of the converters are obtained mathematically. Modelling and system analysis is done using Matlab/Simulink software. Performance of the system is evaluated on the parameters such as passive elements used, ripple factors, output power and efficiency.