Battery selection for small photovoltaic (PV) systems is often driven by the availability of batteries in the host country. Offshore projects frequently have very limited sources for lead-acid batteries and sometimes must employ starting-lighting-ignition (SLI) batteries which are designed especially for power, as opposed to energy, use. These SLI batteries are not intended for deep cycling operation, nonetheless, they are commonly found in small PV systems. To compound the problem, battery management is frequently inadequate and the battery subsequently yields very poor performance in these systems. The U.S. Department of Energy (DOE) Energy Storage Systems (ESS) Program has been working closely with the DOE Photovoltaic Program to assist in developing a battery management scheme which will help improve SLI battery performance in shallow cycling applications. This paper discusses the nature and scope of the DOE ESS Program and reports on the successful results obtained from the testing of a 100 Ah flooded SLI lead-acid battery in a simulated PV environment.
Battery testing for storage applications in small domestic photovoltaic systems
1998
5 Seiten
Aufsatz (Konferenz)
Englisch
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