Title :
Performance analysis of extended phase-shift control of DAB DC-DC converter for aerospace energy storage system
Author :
Naayagi, R.T. ; Forsyth, A.J. ; Shuttleworth, R.
Author_Institution :
Sch. of Electr. & Electron. Eng., Newcastle Univ. (Singapore), Singapore, Singapore
Abstract :
This paper presents a steady-state analysis for the bidirectional dual active bridge (DAB) dc-dc converter operating in extended-phase-shift (EPS) control by proposing a new model that produces equations for RMS and average device currents, and RMS and peak inductor/transformer currents. The DAB converter performance is evaluated based on the mathematical model, focusing on zero-voltage switching (ZVS) operating range, average power transfer, and efficiency by considering a small dead-time on the transformer primary under light loads. Experimental results are presented to verify the model and validate the converter performance at 1kW, 160/65V, 20 kHz in ZVS boundary operation for an aerospace energy storage system.
Keywords :
DC-DC power convertors; aircraft power systems; energy storage; zero voltage switching; DAB DC-DC converter; EPS control; ZVS; aerospace energy storage system; bidirectional dual active bridge dc-dc converter; extended phase-shift control; extended-phase-shift control; inductor currents; mathematical model; transformer currents; zero-voltage switching; Bridge circuits; DC-DC power converters; Inductors; Mathematical model; Transistors; Voltage control; Zero voltage switching; Dual active bridge (DAB); RMS and average device current; RMS and peak inductor current; dc-dc converter; dead-time; extended phase-shift control; zero-voltage switching (ZVS);
Conference_Titel :
Power Electronics and Drive Systems (PEDS), 2015 IEEE 11th International Conference on
Conference_Location :
Sydney, NSW
DOI :
10.1109/PEDS.2015.7203567
