Title :
Modeling of Hydro-pneumatic Energy Storage System
Author_Institution :
Fac. of Mech. Eng. & Naval Archit., Univ. of Zagreb, Zagreb, Croatia
Abstract :
Intermittent nature and variable power levels of renewable energy sources requires their integration with energy storage systems. One of the energy storage systems is the hydro-pneumatic system with the hydraulic pump/motor unit and hydro-pneumatic accumulator. The paper deals with the mathematical modeling, design and simulation of such a system. The bond-graph model of the system is given, which leads to the control oriented mathematical model ready for computer simulation. The model includes thermal effects of the system. Simulation analysis of the model shows its functionality.
Keywords :
bond graphs; compressed air energy storage; control engineering computing; hydraulic motors; hydraulic systems; pneumatic control equipment; power engineering computing; bond-graph model; computer simulation; control oriented mathematical model; hydraulic pump unit; hydropneumatic accumulator; hydropneumatic energy storage system modeling; motor unit; renewable energy sources; variable power levels; Atmospheric modeling; Energy storage; Equations; Fluids; Mathematical model; Pistons; Torque; energy storage; hydraulics; renewable energy;
Conference_Titel :
Modelling and Simulation (EUROSIM), 2013 8th EUROSIM Congress on
Conference_Location :
Cardiff
DOI :
10.1109/EUROSIM.2013.48
