Self-tuning adaptive feedback linearizing output voltage control for AC/DC converter. (December 2015)

• Record Type: Journal Article
• Authors: Kim, Seok-Kyoon
• Is Part Of: Control engineering practice. Volume 45(2015)
• Page Start: 1
• Page End: 11
• Publication Date: 2015-12
• Subjects: AC/DC converter -- Cascade voltage control -- Self-tuning -- Parametric uncertainty -- Internal dynamics; Automatic control -- Periodicals; 629.89
• DOI: 10.1016/j.conengprac.2015.08.007
• Languages: English
• ISSNs: 0967-0661

Abstract

Abstract: This paper presents a cascade output voltage control law adopting the self-tuning adaptive inner and outer-loop controllers for a AC/DC converter modelled as a nonlinear system. The first contribution is to design the inner and outer-loop controllers updating their control gains to enhance the closed-loop performance, estimating unknown parameters. The second one is to show that the proposed inner-loop controller stabilizes not only current error dynamics but also output voltage dynamics viewed as internal dynamics. The effectiveness of proposed method is shown by performing experiments using a 3-kW AC/DC converter.