Experimental Comparison of Digital Implementations of Single-Phase PFC Controllers

This paper presents the design and the digital implementation of three controllers for a single-phase power factor corrector (PFC). Based on an averaged system model, an adaptive nonlinear control strategy is first designed, followed by a digital redesign of the standard cascaded linear controller and a notch-filter-based variant. All three controllers have been verified via simulation in Simulink using a continuous time plant model and a discrete time controller. Real-time implementation is performed on an experimental testbed utilizing a rapid prototyping tool. The three controllers are experimentally compared for steady-state performance and transient response. It is shown that the nonlinear controller gives a better steady-state performance, whereas the linear strategy and the notch-filter-based variant have a faster dynamic response. Furthermore, although the notch-filter-based linear design shows promise in simulation, practical difficulties degrade its experimental performance. Performance metrics are tabulated for easy comparison.

[1]  Bin Wu,et al.  New digital control method for power factor correction , 2006, IEEE Transactions on Industrial Electronics.

[2]  Ying-Yu Tzou,et al.  CPLD realization of a digital programmable PFC control IC for single-phase half-bridge boost AC-DC converters , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[3]  Jian Sun,et al.  Mixed-Signal Control of Single-Phase PFC Based on a Nonlinear Current Control Method , 2006 .

[4]  George C. Verghese,et al.  An adaptive digital controller for a unity power factor converter , 1996 .

[5]  Salvador Bracho,et al.  Power-mode-controlled power-factor corrector for electronic ballast , 2005, IEEE Transactions on Industrial Electronics.

[6]  Dejan Markovic,et al.  Digital PWM control: application in voltage regulation modules , 1999, 30th Annual IEEE Power Electronics Specialists Conference. Record. (Cat. No.99CH36321).

[7]  Muhammad H. Rashid,et al.  Power electronics handbook , 2001 .

[8]  D. Maksimovic,et al.  Analysis and design of a low-stress buck-boost converter in universal-input PFC applications , 2006, IEEE Transactions on Power Electronics.

[9]  Aman Behal,et al.  Nonlinear Control of a Single Phase Unity Power Factor Rectifier: Design, Analysis, and Experimental Results , 2008, IEEE Transactions on Control Systems Technology.

[10]  Aman Behal,et al.  Modeling, Control, and Experimental Results for a Single Phase One Quadrant Unity Power Factor Rectifier , 2006, Proceedings of the 45th IEEE Conference on Decision and Control.

[11]  Robert W. Erickson,et al.  Fundamentals of Power Electronics , 2001 .

[12]  Romeo Ortega,et al.  An adaptive passivity-based controller for a unity power factor rectifier , 2001, IEEE Trans. Control. Syst. Technol..

[13]  George C. Verghese,et al.  Fast controller for a unity-power-factor PWM rectifier , 1996 .

[14]  D. Maksimovic,et al.  Dead-zone digital controllers for improved dynamic response of low harmonic rectifiers , 2006, IEEE Transactions on Power Electronics.

[15]  Aleksandar Prodic,et al.  Digitally controlled low-harmonic rectifier having fast dynamic responses , 2002, APEC. Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.02CH37335).

[16]  Enrico Dallago,et al.  Experimental analysis and comparison on a power factor controller including a delta-sigma processing stage , 1998, IEEE Trans. Ind. Electron..

[17]  Bin Wu,et al.  A New Duty Cycle Control Strategy for Power Factor Correction and FPGA Implementation , 2006, IEEE Transactions on Power Electronics.

[18]  D. Maksimovic,et al.  Variable-frequency predictive digital current mode control , 2004, IEEE Power Electronics Letters.

[19]  Y. Li,et al.  A Digitally Controlled 4-kW Single-Phase Bridgeless PFC Circuit for Air Conditioner Motor Drive Applications , 2006, 2006 CES/IEEE 5th International Power Electronics and Motion Control Conference.

[20]  Bin Wu,et al.  A digital power factor correction (PFC) control strategy optimized for DSP , 2004 .

[21]  Robert W. Erickson,et al.  Self-tuning digitally controlled low-harmonic rectifier having fast dynamic response , 2003 .

[22]  Aman Behal,et al.  Nonlinear controller for a single phase one quadrant unity power factor rectifier , 2003, 42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475).

[23]  G. Feng,et al.  DSP implementation of predictive control strategy for power factor correction (PFC) , 2004, Nineteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2004. APEC '04..

[24]  Guanrong Chen,et al.  Cryptanalysis of a data security protection scheme for VoIP , 2006 .

[25]  T.-F. Wu,et al.  A PFC Control Circuit for Accommodating Line-Voltage Distortion to Achieve High Power Factor and Low Harmonic Current , 2005, 2005 IEEE 36th Power Electronics Specialists Conference.

[26]  A.E. Emanuel,et al.  A Theoretical Study of the Incandescent Filament Lamp Performance under Voltage Flicker , 1997, IEEE Power Engineering Review.

[27]  Prasad N. Enjeti,et al.  A modular single-phase power-factor-correction scheme with a harmonic filtering function , 2003, IEEE Trans. Ind. Electron..

[28]  J. Sun,et al.  Nonlinear Current Control of Single-Phase PFC Suitable for Mixed-Signal IC Implementation , 2006, 2006 CES/IEEE 5th International Power Electronics and Motion Control Conference.

[29]  G. Garcera,et al.  Analysis and design of a power factor correction rectifier with load current injection , 2005, Proceedings of the IEEE International Symposium on Industrial Electronics, 2005. ISIE 2005..

[30]  R. Sadagopan,et al.  Digital implementation of a nonlinear controller for a unity power factor rectifier: simulation and experiments , 2006, 2006 American Control Conference.