A stand-alone photovoltaic supercapacitor battery hybrid energy storage system
- 1 September 2008
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 1688-1695
- https://doi.org/10.1109/epepemc.2008.4635510
Abstract
Most of the stand-alone photovoltaic (PV) systems require an energy storage buffer to supply continuous energy to the load when there is inadequate solar irradiation. Typically, Valve Regulated Lead Acid (VRLA) batteries are utilized for this application. However, supplying a large burst of current, such as motor startup, from the battery degrades battery plates, resulting in destruction of the battery. An alterative way of supplying large bursts of current is to combine VRLA batteries and supercapacitors to form a hybrid storage system, where the battery can supply continuous energy and the supercapacitor can supply the instant power to the load. In this paper, the role of the supercapacitor in a PV energy control unit (ECU) is investigated by using Matlab/Simulink models. The ECU monitors and optimizes the power flow from the PV to the battery-supercapacitor hybrid and the load. Three different load conditions are studied, including a peak current load, pulsating current load and a constant current load. The simulation results show that the hybrid storage system can achieve higher specific power than the battery storage system.Keywords
This publication has 12 references indexed in Scilit:
- Power Enhancement of an Actively Controlled Battery/Ultracapacitor HybridIEEE Transactions on Power Electronics, 2005
- Design of autonomous photovoltaic power plant for telecommunication relay stationIEE Proceedings - Generation, Transmission and Distribution, 2005
- Ni-MH batteries and EDLCs hybrid stand-alone photovoltaic power system for digital access equipmentPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Power and life extension of battery-ultracapacitor hybridsIEEE Transactions on Components and Packaging Technologies, 2002
- Dynamical models of lead-acid batteries: implementation issuesIEEE Transactions on Energy Conversion, 2002
- A battery management system for stand-alone photovoltaic energy systemsIEEE Industry Applications Magazine, 2001
- Ultracapacitors: why, how, and where is the technologyJournal of Power Sources, 2000
- Classical equivalent circuit parameters for a double-layer capacitorIEEE Transactions on Aerospace and Electronic Systems, 2000
- New dynamical models of lead-acid batteriesIEEE Transactions on Power Systems, 2000
- Electrochemical SupercapacitorsPublished by Springer Science and Business Media LLC ,1999