Disturbance Observer-Based Control for DC-DC Boost Converter

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

3 Citations (Scopus)


This paper proposes the use of disturbance observer-based control (DOBC) for the output voltage regulation in DC-DC boost converter. The proposed controller consists of combining linearizing feedback control with disturbance observer. Specifically, the feedback controller is designed considering the nominal model with a view to ensure closed-loop stability, while the disturbance observer is employed to compensate for model uncertainties and unknown disturbances. Thus, zero steady-state error is guaranteed under the composite controller. The asymptotic regulation is achieved due to the integral action property characterizing the disturbance observer. However, the integral action can deteriorate the transient response during control saturation, even destroy the closed-loop stability, due to the integrator build-up. This problem is solved in this paper by considering control saturation in the observer design. After mathematical manipulation, it turns out that the composite controller reduces to a dynamic state feedback control plus an anti-windup scheme to mitigate the effect of control saturation during transients. The performance of the proposed controller was verified by simulation tests. The simulation results demonstrated the ability of the proposed controller to achieve good transient and steady-state performances.

Original languageEnglish
Title of host publication2021 IEEE Industry Applications Society Annual Meeting, IAS 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728164014
Publication statusPublished - 2021
Event2021 IEEE Industry Applications Society Annual Meeting, IAS 2021 - Vancouver, Canada
Duration: Oct 10 2021Oct 14 2021

Publication series

NameConference Record - IAS Annual Meeting (IEEE Industry Applications Society)
ISSN (Print)0197-2618


Conference2021 IEEE Industry Applications Society Annual Meeting, IAS 2021


  • Anti-windup compensator
  • Constant power load
  • Dc-dc boost converter
  • Disturbance observer
  • Renewable energy

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


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