<span lang="HR">Solar photovoltaic (PV) system becomes popular to generate the electricity in Asian region and helps to reduce the burden to utility. The power converter plays crucial role to interconnect with DC- grid. Traditional type power DC-DC converter can able to extract the maximum power from solar PV. However, most of the applications, it often fails to meet the voltage level of the DC bus and additional converter is required to boosting p the DC voltage. In order to overcome this drawback, this paper proposes a novel DC-DC converter to extract the maximum power from solar PV and helps to enhance the voltage level to meet the DC-bus. The PV and IV characteristics of practical solar PV cell and mathematical modelling have been done and implemented the same to proposed high gain converter. The maximum power point tracking (MPPT) algorithm and operation details are addressed and the detailed operation waveform of proposed high voltage gain DC-DC converter with mathematical evident is reported in this paper. The simulation study was carried out in the PSCAD/EMDTC software. From the measured results, it is investigated in further to validate the MPPT operation, gain values achievement and performance analysis of proposed converter. The corresponding explanations and results are presented in this article.</span>

Background & Objective: In single-phase solar PV applications, the module voltage level is limited; therefore, a coupled step up transformer is mandatory portion to interconnect into the grid. However, due to presence of transformer, the overall cost and size of the single-phase grid tied solar PV system is higher. Multilevel inverter is an alternative solution to solve these issues, but it requires more number of switches. Methods: In order to overcome this drawback, this particular paper proposes a novel asymmetric multilevel inverter (AMLI) with reduced number of switches for solar PV grid-tied system. The operational details of the proposed converter are explained in this paper. In addition, the MPPT control has been implemented in the proposed novel AMLI and presented in this paper. The hysteresis current control mechanism is applied to the proposed converter and corresponding control blocks are reported in this paper. Results: Finally, to validate the proposed system, the simulation results are performed and correlated with theoretical approach Furthermore, to verify the feasibility of proposed converter for solar PV grid-tied system, the experimental setup was made and experimental results have been measured and presented in this paper. Conclusion: From the measured results, it is concluded that the proposed asymmetric MLI can be most promising converter for solar PV grid connected system.