Title

Experimental Comparison Of Digital Implementations Of Single-Phase Pfc Controllers

Keywords

Digital control; Nonlinear control; Power factor correction

Abstract

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. © 2008 IEEE.

Publication Date

1-1-2008

Publication Title

IEEE Transactions on Industrial Electronics

Volume

55

Issue

1

Number of Pages

67-78

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/TIE.2007.904016

Socpus ID

38349031389 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/38349031389

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