This paper studies the optimum (most economical) scaling of a battery and supercapacitor hybrid storage for 1 MW photovoltaic (PV) arrays for a one hour dispatching period for an entire day. The optimization is based on the time constant of a low pass filter (LPF) that is used to allocate the power between a battery and a supercapacitor (SC). This paper also presents the price comparison between lead-acid and li-ion battery frameworks. Extensive simulations were conducted for thorough analysis of various hybrid energy storage system (HESS) combinations. According to the results, HESS outperforms battery or SC-only operation.
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Details
Title
Size optimization of battery-supercapacitor hybrid energy storage system for 1MW grid connected PV array
Publication Details
2017 North American Power Symposium (NAPS), pp.1-6
Resource Type
Conference proceeding
Conference
North American Power Symposium (NAPS) (Morgantown, WV, USA, 09/17/2017–09/19/2017)