Lithium-Ion Battery Energy Storage Systems for Grid Applications
Energy storage systems (ESS) are becoming widely used as a compliment to the power grid (need a citation to prove this). Large scale ESS are often used due to the advancement of the technology but smaller scale technologies such as compressed air, thermal (thermal what?) and batteries, are also being used more. The smaller scale application can be used more often because there is not a need for specific geographical requirements such a remote location . The ESS that will be discussed is one composed of lithium-ion batteries. There are many advantages of using this specific device, including a high energy-to-weight ratio, no memory effect, and a little self-discharge. Common applications include portable equipment, mobile telephones, and plug-in hybrid and electric vehicles.
In this study, an overview of a proposed ESS organization and simulation of the response of both parallel and series lithium-ion battery ESS configurations will be compared to determine the most efficient method of powering a load. Factors that determine the better response include capacity fade and useful life. From these results, it can be concluded which may be a better design to incorporate into an ESS based on cost.
Figure 1: Flowchart of Energy Storage System Design
This work was supported by the FREEDM ERC program of the National Science Foundation under award number EEC-08212121.
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