1. High static gain single-phase PFC based on a hybrid boost converter.
- Author
-
Flores Cortez, Daniel, Maccarini, Marcello C., Mussa, Samir A., and Barbi, Ivo
- Subjects
- *
ELECTRONIC feedback , *SINGLE-phase flow , *FLUID flow , *VACUUM-tube amplifiers , *VACUUM tubes - Abstract
In this paper, a single-phase unity power factor rectifier, based on a hybrid boost converter, resulting from the integration of a conventional dc–dc boost converter and a switched-capacitor voltage doubler is proposed, analysed, designed and tested. The high-power rectifier is controlled by two feedback loops with the same control strategy employed in the conventional boost-based rectifier. The main feature of the proposed rectifier is its ability to output a dc voltage larger than the double of the peak value of the input line voltage, while subjecting the power switches to half of the dc-link voltage, which contributes to reducing the cost and increasing the efficiency. Experimental data were obtained from a laboratory prototype with an input voltage of 220 Vrms, line frequency of 60 Hz, output voltage of 800 Vdc, load power of 1000 W and switching frequency of 50 kHz. The efficiency of the prototype, measured in the laboratory, was 96.5% for full load and 97% for half load. [ABSTRACT FROM PUBLISHER]
- Published
- 2017
- Full Text
- View/download PDF