Abstract

A step up converter is a main component of a micro-grid system, is used to increase the system's voltage. The use of a standard boost converter in high gain applications is not a practical technique upper range of voltage cannot be created and the duty ratio of the switch has to be higher, resulting in significant losses as well as poor efficiency. Due to the switch's minimal off-time, the bigger duty cycle will decrease the converter's switching frequency. To address this issue, three boost converter topologies are employed: quadratic boost (QB), double-inductor quadratic boost (DIQB), and double cascaded boost (DCB) converter. A QB and DIQB are the two-stage boost converters with just one switch. Also, a double cascaded boost (DCB) converter is a new topology by connecting two standard boost converters in series. This paper proposes a comparison of voltage and the efficiency of the above topologies of boost converters.

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