Sethu madhavan NR, ezhil arasan P, ilayaraja R
As the conventional energy resources are depleting there is an urgent need for switching to renewable energy resources as well as increasing its functionality. This paper proposes a design of solar power system fed by a photovoltaic source with a super capacitor storage system and sepic convertor. The super capacitor has the fastest charging time compared to all other storage devices and also guarantees a longer lifetime in terms of charge cycles and has a large range of operating temperatures, but has the drawback of having low energy density . The lithium battery has higher energy density but requires an accurate charge profile to increase its lifetime. Combining the two storages is possible to obtain good compromise in terms of energy density. Sepic convertors allow output from convertors to be higher or lower than its input and allow the output to be non-inverted state with respect to input. It also reduces the amount of harmonics present in the output. A Controller is added between the solar panel and the battery to improve the system performance. The solar power system is controlled and monitored using PIC microcontroller
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