Title :
Current sensorless solution for PFC boost converter operating both in DCM and CCM
Author :
Cimini, Gionata ; Ippoliti, Gianluca ; Orlando, Giuseppe ; Pirro, Matteo
Author_Institution :
Dipt. di Ing. dell´Inf., Univ. Politec. delle Marche, Ancona, Italy
Abstract :
In this paper a current sensorless solution for Power Factor Control (PFC) of an AC-DC boost converter operating in light load condition has been presented. A PI-based control with input voltage feedforward has been implemented in order to increase Power Factor (PF). A current observer, able to operate in either Continuous Conduction Mode (CCM) and in Discontinuous Conduction Mode (DCM), has been adopted in order to eliminate the need for expensive current sensors and to improve boost converter performances under light load conditions. The proposed solution has been numerically tested in three different load conditions using a powerful software simulation platform.
Keywords :
AC-DC power convertors; PI control; feedforward; load regulation; observers; power control; power factor; voltage control; AC-DC boost converter; CCM; DCM; PFC boost converter; PI-based control; continuous conduction mode; current observer; current sensorless solution; discontinuous conduction mode; input voltage feedforward control; power factor control; software simulation platform; Inductors; Market research; Mathematical model; Observers; Reactive power; Switches; Voltage control;
Conference_Titel :
Control & Automation (MED), 2013 21st Mediterranean Conference on
Conference_Location :
Chania
Print_ISBN :
978-1-4799-0995-7
DOI :
10.1109/MED.2013.6608711