Feedforward current control of boost-derived single-phase PFC converters
- 1 January 2005
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 3, 1716
- https://doi.org/10.1109/apec.2005.1453272
Abstract
The recently developed input current feedforward control method for boost single-phase PFC converters is generalized and applied to other, boost-derived topologies. The generalized method is applicable even when additional resonant and active clamping circuits are added to achieve soft switching in the converter power stage. The feedforward duty ratio signal in the generalized method is calculated based on the off-state voltage of the main switch instead of the output voltage as in the existing method. Measuring the switch off-state voltage requires a sample-and-hold circuit, which is best accomplished by using digital control. Applications of the proposed method to a transformer-coupled SEPIC converter with active clamping and its digital implementation are presented in detail. Numerical simulation and experimental results are reported to demonstrate the benefits of the proposed method and its suitability for different applications.Keywords
This publication has 6 references indexed in Scilit:
- A general approach to averaged modeling and analysis of active-clamped convertersPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Feedforward current control of boost single-phase PFC convertersPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2004
- On the Zero-Crossing Distortion in Single-Phase PFC ConvertersIEEE Transactions on Power Electronics, 2004
- High-performance front-end converter for avionics applicationsIEEE Transactions on Aerospace and Electronic Systems, 2003
- Fast controller design for single-phase power-factor correction systemsIEEE Transactions on Industrial Electronics, 1997
- Harmonic-Free Utility/DC Power Conditioning InterfacesIEEE Transactions on Power Electronics, 1986