Observer-based decoupling power control for frequency modulated Dual-Active-Bridge converter

Duy Dinh Nguyen, Goro Fujita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

This paper proposes a new control strategy to manage the active and reactive power within a single-phase frequency-modulated Dual-Active-Bridge converter individually. It is realized by decoupling control of the direct and quadrature current components, Id and Iq, as they are directly proportional to the active and reactive power, respectively. An observer is designed in order to observe the two current components since it is difficult to derive them directly from the measured transmission current. After that, based on the relative gain array, input-output pairing can be accomplished for lowest interaction between the d- and q-control channels. Simulation and experiment results show that, the proposed control strategy requires not very high sampling frequency but provides observed currents Îd and Îq with acceptable accuracy. As a consequence, active and reactive power are directly manipulated by two separate control loops with two simple PI regulators. The outcome of this paper allows to use a low-cost DSP platform to handle the active and reactive power within a high-frequency DAB converter individually.

Original languageEnglish
Title of host publication2016 IEEE 8th International Power Electronics and Motion Control Conference, IPEMC-ECCE Asia 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages754-760
Number of pages7
ISBN (Electronic)9781509012107
DOIs
Publication statusPublished - 2016 Jul 13
Event8th IEEE International Power Electronics and Motion Control Conference, IPEMC-ECCE Asia 2016 - Hefei, China
Duration: 2016 May 222016 May 26

Other

Other8th IEEE International Power Electronics and Motion Control Conference, IPEMC-ECCE Asia 2016
CountryChina
CityHefei
Period16/5/2216/5/26

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Keywords

  • decoupling power control
  • Dual-active-bridge converter
  • frequency modulation
  • single phase shift
  • state observer

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Control and Optimization

Cite this

Nguyen, D. D., & Fujita, G. (2016). Observer-based decoupling power control for frequency modulated Dual-Active-Bridge converter. In 2016 IEEE 8th International Power Electronics and Motion Control Conference, IPEMC-ECCE Asia 2016 (pp. 754-760). [7512380] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IPEMC.2016.7512380