AI Article Synopsis
- - A compact photovoltaic power generation system designed for mobile use was created, featuring a SiC integrated converter that enables efficient energy conversion at around 200 W.
- - The SiC inverter provided higher DC-AC conversion efficiency compared to traditional silicon inverters, while also housing a lightweight Li-ion battery within the same unit—keeping the total weight under 6 kg.
- - The system demonstrated stable power output during operation, even in varying weather conditions, although efficiency decreased slightly due to losses from the maximum power point tracking device.
Article Abstract
A photovoltaic power generation system suitable for mobile applications was developed. A SiC integrated converter with the maximum power point tracking circuit provided the smallest photovoltaic inverter in ~200 W level. The SiC-based inverter exhibited a peak direct current (DC)-alternating current (AC) conversion efficiency higher than that of conventional Si inverters. A Li-ion laminated battery was mounted in the same housing as the inverter. The weight of entire system containing spherical Si solar cell panels was well below 6 kg. Continuous operation measurements of this system were carried out using four solar cell modules connected in parallel under irradiation by natural sunlight. The total inverter efficiencies under realistic operation conditions were slightly decreased compared with the DC-AC converter values because of loss by the maximum power point tracking device. Even under unstable weather conditions, the system provided power stability without ripples. The behaviors of the output powers of the solar cell, storage battery, and inverter modules were analyzed as a function of the solar radiation power density. The substantial efficiencies of the solar cell modules were dependent on the weather conditions and were approximately 10% on cloudy days. The present compact photovoltaic power generation system with SiC device and spherical Si solar cells is viable for sub kW-class inverter.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6940697 | PMC |
| http://dx.doi.org/10.1016/j.heliyon.2019.e03094 | DOI Listing |
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