A Novel Dual-Input Cuk-Based Converter: Modeling, Analysis and Design

This paper presents a theoretical analysis of a Dual-Input Cuk-Based Converter. The primary feature of this converter is the application of voltage sources with distinct characteristics, such as batteries and solar panels. Consequently, the proposed topology can offer improved load-sharing capa-bilities between the input sources. The primary advantage of the proposed topology is its ability to reduce the duty-cycle value required to achieve maximum gain. This is in contrast to classical Cuk or Boost converters, where the maximum gain is achieved with a duty-cycle of around 94%, a value that can be challenging to attain in experimental results. In contrast, the proposed topology achieves maximum gain with a duty-cycle of approximately 80%. Initially, the state-space model is evaluated with parasitic resistances, and then the model is validated through simulations in Matlab/Simulink. Finally, an analysis of the stress applied on the semiconductors is presented, the static voltage gain is conducted to determine its optimal operating region, as well as an efficiency analysis.