Research on a Stand-alone Photovoltaic System with a Supercapacitor as the Energy Storage Device
2012
Abstract With the application and development of the supercapacitor energy storage (SCES) system, energy storage technology has been greatly improved in modern power systems. The SCES provides required energy buffer for a photovoltaic power system and plays an important role in improving the operation stability of a power system. This paper designs a stand-alone photovoltaic system with a supercapacitor as the energy storage device. In particular a Stand-alone PV system constituted by photovoltaic and supercapacitor sources is simulated in PSIM with DC to DC buck boost converter to prove that supercapacitor as a power supply device. The PSIM simulation results reflect that system stability was validated when the input power of photovoltaic array fluctuates greatly. The designed system offers a preferable reference for applications of the supercapacitor in the field of regeneration energy and quality improvement of electricity power.
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