Zero-Voltage-Transition (ZVT) DC-DC converters with active snubber can be conveniently employed in photovoltaic applications requiring high efficiency and isolation transformer. In order to improve the dynamic response of the converter, a Feed-Forward current controller is proposed and compared with the conventional proportional-integral controller. The Feed-Forward control is achieved using the equivalent converter electrical model and the desired current reference, calculates the expected operating point; then, a suitable correction term is added to compensate for the current error. The control design is first validated through simulations and, finally, verified by experimental results on a laboratory prototype.
Pipolo, S., Bifaretti, S., Lidozzi, A., Solero, L. (2015). Feed-Forward control of a ZVT Full Bridge DC-DC converter. In 2015 IEEE 15th International Conference on Environment and Electrical Engineering, EEEIC 2015 - Conference Proceedings (pp.1041-1046). Institute of Electrical and Electronics Engineers Inc. [10.1109/EEEIC.2015.7165308].
Feed-Forward control of a ZVT Full Bridge DC-DC converter
BIFARETTI, STEFANO;
2015-06-01
Abstract
Zero-Voltage-Transition (ZVT) DC-DC converters with active snubber can be conveniently employed in photovoltaic applications requiring high efficiency and isolation transformer. In order to improve the dynamic response of the converter, a Feed-Forward current controller is proposed and compared with the conventional proportional-integral controller. The Feed-Forward control is achieved using the equivalent converter electrical model and the desired current reference, calculates the expected operating point; then, a suitable correction term is added to compensate for the current error. The control design is first validated through simulations and, finally, verified by experimental results on a laboratory prototype.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
