Fast controller for a unity-power-factor PWM rectifier

This paper presents an analog implementation of a fast controller for a unity-power-factor (UPF) PWM rectifier. The best settling times of many popular controllers for this type of power converter are on the order of a few line cycles, corresponding to bandwidths under 20 Hz. The fast controller demonstrated in this paper can exercise control action at a rate comparable to the switching frequency rather than the line frequency. In order to accomplish this while maintaining unity power factor during steady-state operation, the fast controller employs a ripple-feedback cancellation scheme.

[1]  K. Mahabir,et al.  Linear averaged and sampled data models for large signal control of high power factor AC-DC converters , 1990, 21st Annual IEEE Conference on Power Electronics Specialists.

[2]  R. Spence,et al.  Tellegen's theorem and electrical networks , 1970 .

[3]  George C. Verghese,et al.  A digital controller for a unity power factor converter , 1992, [Proceedings] 1992 IEEE Workshop on Computers in Power Electronics.

[4]  A.M. Stankovic,et al.  A fast analog controller for a unity-power factor AC/DC converter , 1994, Proceedings of 1994 IEEE Applied Power Electronics Conference and Exposition - ASPEC'94.

[5]  G.,et al.  LINEAR AVERAGED AND SAMPLED DATA MODELS FOR LARGE SIGNAL CONTROL OF HIGH POWER FACTOR ACDc CONVERTERS , .

[6]  Paolo Mattavelli,et al.  Power factor preregulators with improved dynamic response , 1995 .