Title :
An optimal operating strategy for combined RES-based generators and electric storage systems for load shifting applications
Author :
Dusonchet, L. ; Ippolito, M.G. ; Telaretti, E. ; Zizzo, G. ; Graditi, Giorgio
Author_Institution :
DEIM, Univ. di Palermo, Palermo, Italy
Abstract :
This paper focuses on an optimal operating strategy of combined RES-based generators and electric storage systems for small/medium-scale public facilities. The operating strategy can be used in load shifting applications in response to a time-of-use (TOU) rate design with differential pricing for on- and off-peak usage. Load shifting applications can be exploited by customers using battery energy storage systems (BESS) in order to reduce their electricity bill, charging the storage when off-peak time periods are applied and discharging it during on-peak periods, when electricity energy prices are high. The operating strategy is implemented within a bidirectional converter that provides an interface between the low voltage (LV) grid and a PV generator combined with a BESS, so as to contemporary addressing the requirements of the national reference technical standards for active users connections and providing different ancillary services.
Keywords :
battery storage plants; energy storage; power grids; renewable energy sources; secondary cells; PV generator; active users connections; ancillary services; battery energy storage systems; bidirectional converter; combined RES-based generators; electric storage systems; electricity bill; electricity energy prices; load shifting applications; low voltage grid; national reference technical standards; off-peak time periods; off-peak usage; on-peak periods; on-peak usage; optimal operating strategy; small/medium-scale public facilities; time-of-use rate design; Batteries; Discharges (electric); Electricity; Generators; Indexes; Production; lithium-ion battery; load shifting; operating strategy; peak shaving;
Conference_Titel :
Power Engineering, Energy and Electrical Drives (POWERENG), 2013 Fourth International Conference on
Conference_Location :
Istanbul
DOI :
10.1109/PowerEng.2013.6635668