Robust control using fixed-manifold for wind-power DC-DC converter

Fu Kuang Yeh, Kuang Yang Kou, Jian Huang

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)

Abstract

This approach presents a novel scheme based on fixed-manifold robust control for a step-down dc-dc converter, so that the described converter can generate a constant output voltage, which is lower than the input voltage, using closed-loop compensation while guaranteeing stability in a resistance load. The output phase trajectories, which are used to describe the system dynamics and to form a manifold, are to engage in constructing a vector field. To design the fixed-manifold robust control of step-down dc-dc converter, an experimental mathematics model is enough for a practical implementation and those parameters are estimated by curve-fitting method. That is, establishing a very highly precise mathematics model for a buck converter control system isn't essential. In fact, the model uncertainty can be eliminated by the proposed robust controller. To obtain the competitive control efforts, the methods of predicting the behavior of system dynamics and estimating the lumped uncertainty are adopted during every sampling interval. Finally, by adding an external disturbance in a buck converter system to verify the robustness and excellent stability, various experiments are performed for a wind power generation system to compare the output performance between the fixed-manifold robust controller and the other PI and fuzzy ones.
Original languageEnglish
Title of host publication2012 Proceedings of SICE Annual Conference, SICE 2012
PublisherSociety of Instrument and Control Engineers (SICE)
Pages874-879
Number of pages6
ISBN (Print)9781467322591
Publication statusPublished - 1 Jan 2012
Externally publishedYes
Event2012 51st Annual Conference on of the Society of Instrument and Control Engineers of Japan, SICE 2012 - Akita, Japan
Duration: 20 Aug 201223 Aug 2012

Conference

Conference2012 51st Annual Conference on of the Society of Instrument and Control Engineers of Japan, SICE 2012
Country/TerritoryJapan
CityAkita
Period20/08/1223/08/12

Keywords

  • curve-fitting method
  • fixed-manifold robust control
  • step-down dc-dc converter
  • wind power generation system

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Science Applications
  • Electrical and Electronic Engineering

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