Title :
Small-signal model development for a Cúk converter while operating in DCVM for both DC and AC input voltages
Author :
Karimi, Y. ; Nasirian, V.R. ; Ahmadian, M. ; Yaghoobi, J. ; Zolghadri, M.R. ; Ferdowsi, M.
Author_Institution :
Electr. Eng. Dept., Sharif Univ. of Technol., Tehran, Iran
Abstract :
The Cúk converter operating in discontinuous capacitor voltage mode (DCVM) inherently benefits from PFC features as unity power factor can be achieved by using a constant duty cycle and switching frequency. In this paper, the switch network modeling technique is applied to the Cúk converter operating in DCVM in order to develop its small-signal model under the assumption that it is fed by a dc voltage source. Afterwards, the model is extended to derive the small-signal behavior of the converter while operating as a PFC converter. The validity of the proposed model is confirmed by both simulation and experimental results.
Keywords :
DC-DC power convertors; power factor correction; Cuk converter; DCVM; PFC; discontinuous capacitor voltage mode; switch network modeling technique; unity power factor; Capacitors; Converters; Inductors; Integrated circuit modeling; Mathematical model; Switches; Switching circuits; Cúk converter; discontinuous capacitor voltage mode; power factor correction; small-signal model;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2010 IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-5286-6
Electronic_ISBN :
978-1-4244-5287-3
DOI :
10.1109/ECCE.2010.5618004
