Experimental Validation with a Control Point of View Analysis of the SEPIC Converter

Abstract : This paper presents a theoretical study with experimental validation carried out on a DC-DC SEPIC converter operating in continuous conduction mode (CCM). Two dynamic modeling techniques are adopted and various aspects of the converter's operating modes are analyzed. Simulations of transient and frequency responses are verified with experimental results. A PI control law is used to validate responses to load and reference voltage variations with parasitic losses taken into account. An in-depth analysis of the effects of unstable zeros of the transfer function, from the duty cycle to the output voltage, on the implementation of control laws is also presented. The frequency behavior of the converter along with the stability margins are found to be widely influenced by load resistance and duty cycle variations.
Complete list of metadatas

https://hal-supelec.archives-ouvertes.fr/hal-00417696
Contributor : Josiane Dartron <>
Submitted on : Wednesday, September 16, 2009 - 4:00:05 PM
Last modification on : Tuesday, November 19, 2019 - 12:43:45 PM

Identifiers

Citation

Ali Jaafar, Pierre Lefranc, Emmanuel Godoy, Xuefang Lin-Shi, A. Fayaz, et al.. Experimental Validation with a Control Point of View Analysis of the SEPIC Converter. 2009 35th Annual Conference of IEEE Industrial Electronics, Nov 2009, Porto, Portugal. pp.CD-Rom Proceedings, ⟨10.1109/IECON.2009.5414966⟩. ⟨hal-00417696⟩

Share

Metrics

Record views

233