Abstract
This paper presents a new positive output voltage buck-boost converter is introduced, so that voltage gain is squared the times of conventional buck-boost converter with positive voltage polarities, these advantages enable to work in wide range of applications. It is essential to stabilize the output voltage of DC to DC (Chopper) converter, a suitable controller is necessary for that design and implementation of linear PI controller and Nonlinear Fuzzy controllers are employed. The steady-state as well as transient analysis have been done for both the PI and Fuzzy control techniques with the help of MATLAB/Simulink platform. A comparison analysis is made between both the methods in terms of their performance. In ordered to check the feasibility of the converter and PI controller, the small-scale experimental setup has been fabricated in the laboratory environment and validation has been done by experimental results for the buck-boost converter along with closed loop PI control strategy.
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