Design of Novel Step-up Boost DC/DC Converter

Role and importance of DC/DC converters have been more and more fluoresced in distributed power systems applications such as photovoltaic, wind turbine, gas micro turbine and fuel cells. With regard to this characteristic, distributed power systems have to employ a high step-up DC/DC converter. Low voltage supply with wide range voltage drop is a distinguishing feature of these sources considering the dependency of the generated energy on weather condition. A novel high gain boost DC/DC converter is proposed in this study. Compared with classic topologies, the boost ability of the proposed topology is strengthened. The voltage stress of the capacitors, diodes, and power devices is reduced. The proposed converter has a switching network for the inductor which allows the use of smaller inductors. The steady-state operation of the suggested converter is analyzed thoroughly. Finally, both the results of the simulation and laboratory prototype have verified the feasibility of the proposed topology.