A New High Gain Boost Converter with Common Ground for Solar-PV Application and Low Ripple Input Current

High gain DC-DC converters are needed to step up the low voltage generated from distributed generation (DG) sources. Many topologies of these converters which are proposed in the literature are not suitable for renewable applications because they lack common ground and low ripple continuous input current. High voltage gain, common ground structure and continuous input current with low ripple are inherent advantages of the converter proposed in this paper. The suggested converter has other attractive features like lower voltage stress on semiconductor devices, high gain per inductor and simple control. The gain and efficiency of the converter are also calculated in non-ideal conditions. In the lab, the prototype of the proposed converter with a power rating of 200 W is being constructed to check and verify the functionality of the proposed converter both in steady-state and dynamic conditions. The highest efficiency of the proposed converter is found to be 95.10% which is greater than traditional and other converters listed in literature. The converter has been found to function effectively in open-loop conditions and produces significant voltage gain at lower duty cycles.

Automated summary

The proposed high gain DC-DC converter in this paper has advantages of high voltage gain, common ground structure, and low ripple continuous input current. Its gain and efficiency have been calculated and verified in non-ideal conditions. Experimental results show that the converter functions effectively in open-loop conditions and produces significant voltage gain at lower duty cycles.