IIIE 20352
INSTITUTO DE INVESTIGACIONES EN INGENIERIA ELECTRICA "ALFREDO DESAGES"
Unidad Ejecutora - UE
artículos
Título:
Switching Control Strategy to Minimize Dual Active Bridge Converter Losses
Autor/es:
OGGIER, GERMÁN; GARCÍA, GUILLERMO; OLIVA, ALEJANDRO RAUL
Revista:
IEEE TRANSACTIONS ON POWER ELECTRONICS
Editorial:
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Referencias:
Año: 2009 vol. 24 p. 1826 - 1838
ISSN:
0885-8993
Resumen:
A switching control strategy to control the power flow and minimize the total power losses of the dual active bridge converter topology is proposed in this paper. The control strategy consists of driving the bridge with the largest dc voltage to generate a three-level pulsewidth-modulated (PWM) voltage waveform. This PWM is ruled by two manipulated variables: the phase shift between the primary and secondary transformer voltages and the modulation index. These variables are calculated using an algorithm that is deduced on the basis of particular calculation and analysis of converter losses, which are also presented in this paper. An experimental prototype was implemented to validate the theoretical analysis and feasibility of the proposal. The experimen tal results revealed that the overall efficiency of this converter can be improved up to 10% using the control strategy instead of the conventional one.
