Efficient Design, Modeling, Simulation and Dynamic Analysis of Three Port Bidirectional DC–DC Power Converters for Battery Charging Applications

The MPPT control technique is used to detect maximum power at a specified voltage and current of the PV panel with less energy being dissipated. Both modes of operation, like step-up and step-down, get maximum voltage gain by suppressing unwanted noise, which is undesirable through state-space analysis with the help of small-signal analysis. The proposed topology uses a boost converter to interface PV and the battery. Ripple in the output has been reduced with a coupled inductor, and there is very little oscillation in output power due to the control mechanism. Stress over the four switches is much less, which helps decide the health status of the devices so that they can be used for a longer duration. The proposed converter is simple in design and structure to control the power flow in the circuit from the PV panel to the battery with an appropriate controller like MPPT. The ability of the converter to control power flow in both directions—storing excess PV energy in DC sources and providing electricity from the panels when needed—is described in the abstract. The importance of the converter in maximizing energy use and improving the efficiency of renewable energy systems is emphasized. Furthermore, the significance of critical control techniques for bidirectional operation is highlighted, emphasizing their role in attaining high reliability and efficiency.