Small Signal Analysis and Control of a Non-Isolated High gain Boost Converter for Renewable Energy Applications

The small signal modeling analysis and simulation in closed loop for the non-isolated high voltage gain converter are presented in this study. The operating point of power converter can be found with the use of the DC-DC converter's small signal analysis. The small signal analysis is explained in detail and it is used to calculate the various transfer functions relating input and output variables. A PI controller is used to regulate the converter's output in presence of load disturbance based on proportional integral (PI) control strategy. The simulation results for closed loop control are shown for a gain of approximately ten times. The effectiveness of the controller is also depicted by the simulation results showing servo and regulatory performances