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V2G technology considers EV as an energy storage unit to interact with the grid, which is the inevitable trend of future development. Based on the decentralized V2G system, a control strategy was proposed by considering users' individual demands and SOC constraints of EV battery. A simulation study is carried out to demonstrate the electric vehicle for frequency regulation as mobile energy storage...
The performance of lithium-ion rechargeable battery depends on its coulombic efficiency, which determines the measurement accuracy of the state of charge as well. In this context, the regularity that coulombic efficiency changes with environmental temperature and charge-discharge rate was analyzed in different cases, and a TPS (Thin Plate Spline) surface fitting-based coulombic efficiency estimation...
The capacity character of lithium-ion battery is one of the most important performance parameters, which need to be accurate measurement for the safety and efficiency usage. In this paper, the regularity that battery capacity parameter changes with working temperature and charge or discharge rate has been analyzed, and the least squares support vector machine based battery capacity prediction method...
State of charge (SOC) is the most important status parameter of energy storage system, which is able to predict the available mileage of electric vehicle. In fact, the accuracy of SOC estimation plays a vital role in the usability and security of the battery. In this paper, we designed an battery characteristic experimental system in which LiFePO4 battery was tested under different conditions. Based...
Kinds of text opinion on the Internet are very important to the development of companies, however, methods of opinion mining is very limited, because there always need to deal with many meaning analysis, so this paper presents a new method on opinion mining based on danger theory. Using this method, companies can make decision easier.
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