Experimental comparison of digital implementations of single-phase PFC controllers
Abbreviated Journal Title
IEEE Trans. Ind. Electron.
digital control; nonlinear control; power factor correction; POWER-FACTOR-CORRECTION; DYNAMIC-RESPONSE; CONTROL STRATEGY; RECTIFIER; CONVERTER; Automation & Control Systems; Engineering, Electrical & Electronic; Instruments & Instrumentation
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.
Ieee Transactions on Industrial Electronics
"Experimental comparison of digital implementations of single-phase PFC controllers" (2008). Faculty Bibliography 2000s. 869.