The Ragone plots guided sizing of hybrid storage system for taming the wind power
The allocation of the capacity within hybrid electrical energy storage is proposed. The Ragone plots are introduced as constraints into the capacity allocation. The minimization of life cycle cost is taken as the objective function.
ees electrical energy storage hess hybrid electrical energy storage lcc life cycle cost eloadmax the maximum value of the energy that the electrical energy storage needs to undertake e? the energy density (with unit of jkg?1) mb amount of the lead-acid batteries that need to be employed msc amount of the supercapacitors that need to be employed pob unit price of lead-acid batteries posc unit price of the supercapacitors plevel(t) power needs to be taken by hybrid electrical energy storage pb(t) power demands of lead-acid batteries psc(t) power demands of supercapacitors ploadmax the maximum value of the power that the electrical eneroogy storage needs to undertake p? the power density (with unit of wkg?1) ? the filtering time constant