Application of GaN power devices on standalone solar PV

Nowadays, less converters are preferred for higher efficiency, low size and cost. Such a converter has its own problems. The output voltage of PV arrays is relatively low, requiring a high step-up converter to obtain the DC input voltage for the converter. In this paper, a step-up DC-DC converter is analysed, designed, simulated with MATLAB Simulink and practically implemented. Besides, the performance and effectiveness of some standard and improved boost converter circuits are discussed and compared in terms of voltage gain, power loss and switch voltage stress requirement A major aim of the project is to investigate the effectiveness of this converter regarding application in Solar systems. In short, DC-DC boost converter is designed to overcome the issues faced by the conventional converters such as low conduction and switching losses. a simulation study comparing the relative efficiency performance of the low-cost selected converters with Sic and GaN power switches. The two devices will be compared in terms of efficiency and performance. From this paper all results clarify that GaN devices has better efficiency and performance compared to Si devices. the results were achieved by simulation and experimentally.