Back to Search
Start Over
A Current Reshaping Strategy to Reduce Parasitics-Induced Current Distortion in Discontinuous Conduction Mode Boost Power Factor Correction Converter.
- Source :
-
IEEE Transactions on Industrial Electronics . Mar2021, Vol. 68 Issue 3, p2215-2224. 10p. - Publication Year :
- 2021
-
Abstract
- This article reveals parasitics-induced current distortion (PCD) effect in discontinuous conduction mode boost power factor (PF) correction (PFC) converter. With consideration of parasitics, accurate inductor current is derived through total differential functions of line voltage, output voltage and duty cycle. Furthermore, the proposed current model is used to analyze PFC converter under conventional sensorless average current mode (SACM) control, which is achieved by a variable duty cycle. It is found that parasitics have considerable influence to the input current, and PCD leads to a degraded PF. In order to solve this issue, a current reshaping strategy is proposed to reduce the PCD phenomenon. Based on the damped current equations, a compensation gain is derived to reshape the input current, which reduces the current damping and distortion caused by parasitics. Both the PCD phenomenon and the current reshaping strategy are verified by simulations and experiments. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CORRECTION factors
*AC DC transformers
*BRIDGE circuits
*REACTIVE power
Subjects
Details
- Language :
- English
- ISSN :
- 02780046
- Volume :
- 68
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Industrial Electronics
- Publication Type :
- Academic Journal
- Accession number :
- 147292100
- Full Text :
- https://doi.org/10.1109/TIE.2020.2975492