Input Impedance Analysis of Single-Phase PFC Converters
- 21 March 2005
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Electronics
- Vol. 20 (2), 308-314
- https://doi.org/10.1109/tpel.2004.843011
Abstract
The input impedance of single-phase boost power factor corrected (PFC) AC-DC converters is modeled and analyzed in this paper. A large-signal model is presented for the input impedance which overcomes the limitations of traditional piece-wise linearized models. The model is valid at frequencies ranging from the crossover frequency of the output voltage loop to half the switching frequency of the converter. Experimental results from a boost single-phase PFC converter are provided to validate the model. Input characteristics of typical boost PFC converters, such as input impedance dipping, leading phase of the input current, and responses to distorted input voltages are studied by using the model. A simple compensation technique to reduce the dipping in the input impedance, thereby improving converter performance and minimizing the potential for undesirable interactions with the input filter or the ac source, is also presented.Keywords
This publication has 8 references indexed in Scilit:
- On the Zero-Crossing Distortion in Single-Phase PFC ConvertersIEEE Transactions on Power Electronics, 2004
- Source impedance and current-control loop interaction in high-frequency power-factor correctorsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Analysis of EMI filter induced instabilities in boost power factor preregulatorsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Compatibility of switchmode rectifiers with engine generatorsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Averaged modeling of PWM converters operating in discontinuous conduction modeIEEE Transactions on Power Electronics, 2001
- Interaction between EMI filter and power factor preregulators with average current control: analysis and design considerationsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1999
- Modeling and practical design issues for average current controlPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1999
- Hierarchical approaches to modeling high-power-factor AC-DC convertersIEEE Transactions on Power Electronics, 1991