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This paper proposes the two-stage control structure which is composed of battery management unit and central management unit in order to improve the monitoring and management technology of integrated power supply in power system. The paper presents a battery management system (BMS) design scheme. We designed its hardware circuit and verified in the laboratory conditions. The results show that the...
As the backup power supply of DC system when AC power failure occurs, the residual capacity of battery effected safe operation of DC system directly. It is of great realistic significance to realize on-line measurement for the residual capacity of battery. To overcome the shortcomings of traditional measurement methods such as density method, opening voltage method, DC discharge method and so on,...
Impedance measurement is a method by which the condition of a battery may be assessed. The realization of on-line monitoring of internal resistance of single cell is important to improve the safe operation of the battery backup system. At present there are many internal resistance measuring methods, such as the density method, the terminal voltage method, the momentary load test method, etc. After...
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