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Control of fast scale bifurcations in power-factor correction converters

Lookup NU author(s): Professor Damian Giaouris, Professor Soumitro Banerjee, Dr Bashar Zahawi, Professor Volker Pickert



This brief proposes a novel controller which greatly enhances the performance of a power-factor correction converter. This controller is optimally tuned to place the eigenvalues of the system well inside the unit circle and hence it guarantees stable operation over a wide range of input voltages. The design of the controller is based on the stability analysis of the system using the state transition matrix over a clock cycle. It is shown that the transition matrix across the switching manifold greatly influences the system's performance, allowing the system to be stabilized by periodically altering the manifold. The results are validated by analytical and numerical studies. © 2007 IEEE.

Publication metadata

Author(s): Giaouris D, Banerjee S, Zahawi B, Pickert V

Publication type: Article

Publication status: Published

Journal: IEEE Transactions on Circuits and Systems II: Express Briefs

Year: 2007

Volume: 54

Issue: 9

Pages: 805-809

Print publication date: 01/09/2007

ISSN (print): 1057-7130

ISSN (electronic): 1558-3791

Publisher: IEEE


DOI: 10.1109/TCSII.2007.900350


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