Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title Experiment of Single-phase Grid Connected Battery Charger
Authors Hyun-Sung An ; Wujong Lee ; Byung-Ho Mun ; Il-Kyu Park ; Seon-Yong Jung ; Youngroc Kim ; Hanju Cha
DOI 10.6113/TKPE/2013.18.1.84
Page pp.84-90
ISSN 1229-2214
Keywords grid connected battery charger; second harmonic ripple current; L-C resonant
Abstract This paper explains control methods of single-phase grid connected battery charger. Charging mode is control by Constant Current - Constant Voltage method and discharging mode is controlled by active-reactive power control method. Current control method is based on the synchronous reference frame(SRF) PI controller, and the second harmonic of battery current is compensated by an added L-C resonant circuit. Feasibility of the proposed control methods is verified through experiment with a prototype of 5kW single-phase grid connected battery charger.