The control of a multi-input boost converter for renewable energy system applications

This paper proposes the control strategy of a multi-input boost converter for renewable energy system applications. The desired high output voltage with a constant level can be achieved using the multi-input boost converter. The low multi-input voltage sources are generated from renewable energy sources such as PV modules and wind turbines. The control of the multi-input boost converter is based on the PI controller consisting of the outer-loop voltage control and the multi-inner loop current control. The effectiveness of the designed controller to regulate the output voltage of the multi-input boost converter are demonstrated by simulation results under different operating conditions.