High-Performance Non-Isolated Boost DC-DC Converters with Voltage Multiplier Techniques for Solar Energy Harvesting Applications

Abstract:

Solar energy harvesting systems are made up of stages like energy harvesting, DC-DC conversion, MPPT (maximum power point tracker) controllers, and storage. These stages can vary in number and configuration, but they all have the same basic structure: energy harvesting, DCDC conversion/elevation, and storage. Energy-harvesting systems are crucial for the continuous supply of energy in autonomous systems or devices, which is why they are important for Internet of Things applications. A conversion stage is essential for any solar energy-gathering device. Low-power systems use DC-DC converters to increase or decrease the input energy in a voltage that the system needs. For usage in electrical devices, a DC-AC converter transforms the panel's direct current into alternating current. As a renewable and eco-friendly resource that can be utilized for a variety of purposes, including powering sensor networks, the utilization of solar energy to create electricity has expanded the uses of energy harvesting. Voltage multiplier cells used in non-isolated boost DC-DC converters for solar energy harvesting applications are analyzed in this research. One inductor, two capacitors, and two diodes were used to build voltage multiplier cells. The design calculation was used to determine the performance characteristics. The MATLAB/Simulink software was used to test the performance parameter. The results showed that the power efficiency of the boost DC-DC converter based on voltage multiplier cells was 75%. This converter produced ripple voltage, which was 0.0341% of the output voltage with a ripple content of 0.55 volts. Such voltage multiplier cell-based boost converters can be utilized for low-power voltage lifting in solar energy-harvesting systems.