Modeling and digital control of a phase-controlled series-parallel resonant converter

Sanbao Zheng, Dariusz Czarkowski

Research output: Contribution to journalArticle

Abstract

A nonlinear model for a phase-controlled series-parallel resonant converter is developed using the extended describing function method and d-q decomposition. The model is linearized and reduced using the balanced model reduction technique. Based on the reduced model and taking into account the zero-order hold delay and the computation delay in the sampled-data system, a digital controller for the converter is designed. The controller is implemented with a digital signal processor (DSP). The closed-loop converter with the DSP controller is built and tested experimentally. Recorded transient waveforms show that the closed-loop converter is capable of not only responding to the reference input change as required by the design specifications, but also stabilizing the output effectively under disturbances from both the output and the input.

Original languageEnglish (US)
Pages (from-to)707-715
Number of pages9
JournalIEEE Transactions on Industrial Electronics
Volume54
Issue number2
DOIs
StatePublished - Apr 2007

Fingerprint

converters
controllers
Digital signal processors
Controllers
central processing units
sampled data systems
Describing functions
output
specifications
waveforms
disturbances
Decomposition
Specifications
decomposition

Keywords

  • Digital control
  • Modeling
  • Phase-shifting control
  • Reduced-order model
  • Resonant power conversion

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Instrumentation

Cite this

Modeling and digital control of a phase-controlled series-parallel resonant converter. / Zheng, Sanbao; Czarkowski, Dariusz.

In: IEEE Transactions on Industrial Electronics, Vol. 54, No. 2, 04.2007, p. 707-715.

Research output: Contribution to journalArticle

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