Abstract
This paper deals with the design of suitable control strategy for a dual input DC/DC converter. Nowadays, it becomes very essential to stabilize the output voltage of DC/DC converter for hybrid energy application. To achieve this objective, control of duty ratios of switches using different control strategies is proposed in this paper. Comparative analysis has been carried out between two control strategies: PI control and Fuzzy Logic control. The presented dual input DC/DC converter is having high step up ratio (i.e. high voltage transfer gain), wider range of switching duty cycle and wide range of different input powers. This method of control is well suitable to use the converter in the integration of sources like solar PVs, wind, ultra-capacitors, etc. Finally, the transient as well as steady state analysis have been carried out for either of the control techniques using MATLAB SIMULINK platform. In order to verify the feasibility of theoretical and simulation analysis, an experimental proto type has been built in the laboratory back ground, and results are presented.
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