Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title Improved Efficiency Methodology of 100kW-Energy Storage System with Wide-Voltage Range for DC Distribution
Authors Byeng-Joo Byen ; Byong-Hwan Jeong ; Jea-Han Kim ; Gyu-Ha Choe
Page pp.44-52
ISSN 1229-2214
Keywords Bidirectional dc-dc converter ; DAB(Dual Active Bridge) ; Parallel operation algorithm ; PWM(Pulse Width Modulation)
Abstract This paper describes a 100 kW high-efficiency isolated DC?DC converter for DC distribution system. The DC?DC converter consists of two dual-active-bridge (DAB) converters in parallel. The operating principle of the DAB converter is explained, and the algorithm for parallel operation of the DAB converters is proposed. Simulation and experiments are conducted to verify the performance of the proposed system. Experimental results demonstrate that the developed converter excellently marks 97.4 percent of peak efficiency under its normal operating condition.