Abstract
This paper describes a method for regulating the voltage of a DC bus of the hybrid power system pv/wind associated with storage devices. A hybrid energy storage system (HESS) that combines batteries and super capacitors (SCs) is an interesting solution. The batteries are employed to meet long-term energy requirements, while the using of SCs, to meet immediately the demand for instantaneous power. In this paper, we propose a new management strategy that manages energy flows between storage devices, by maintaining the SOC of super capacitor and the SOC of the batteries at acceptable levels and to reduce stress on batteries and improve their life cycle. the simulation results demonstrate the efficiency of the proposed energy management strategy for the sudden change in power generation and load demand.
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