Performance Evaluation of a Reliable Portable Solar Power System

Abstract

The limited reliability and efficiency of existing miniature solar power systems in providing consistent AC and DC power for various applications prompted this research on the performance evaluation of a Reliable Portable Solar Power System (PSPS). To address these limitations, the Weibull analysis method was employed to estimate the reliability of individual components and ascertain the overall reliability of existing systems. This approach provided a robust framework for evaluating the system's dependability over time. A portable system was developed featuring a 266Wh capacity battery bank, bulk converters, and a mini-inverter to deliver seamless AC and DC power. The PSPS was tested for its ability to charge multiple devices and provide sustained lighting. Results indicated that the system could fully charge five laptops of varying capacities daily on a single charge, while simultaneously powering three 3W bulbs. When used exclusively for lighting, the system operated the bulbs for up to six days per charge. Additionally, a 4,000mAh phone was fully charged in just 95 minutes. The AC component demonstrated the capacity to power circuits with currents up to 13A. A comparative analysis with commercial systems revealed a 5.1% performance improvement over the Sunking 60 Home System, which was found to be more reliable than the Bee Bee Jump Solar System and the NSEL Solar Generator. In conclusion, the PSPS offers improved reliability and efficiency, making it suitable for small-scale power needs. Further enhancements are recommended, including increased battery capacity and the integration of advanced monitoring systems for real-time power management