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Distributed generation units in the microgrid are intermittent and random, which can't meet the demand of grid power stability. In this paper, hierarchical control strategy is used to research hybrid storage system: the superstratum is the microgrid central management and control system, and it contains both distributed generation units and load requirements; the lower layer is the local control system...
The structure and working principle of hybrid energy storage system are introduced. The classical RC model of ultracapacitor is analyzed, and the topology of charging and discharging converter of energy storage system is studied. A ultracapacitor-battery hybrid energy storage system model based on bidirectional boost-buck circuit is constructed, and the charging and discharging process of the energy...
Supercapacitor is a new type of energy storage element, and its performance is easily influenced by temperature. In order to have more precise energy storage characteristic research of supercapacitor, a modified porous circuit equivalent model is proposed on the basis of porous circuit equivalent model in electric double layer supercapacitor. The simulation results show that modified porous circuit...
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