Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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H∞ Observer Design for Detecting Internal Oil Leakage in a Hydraulic Cylinder

유압실린더 내부 누유 검출을 위한 H∞ 관측기 설계

  • Received : 2015.12.16
  • Accepted : 2015.12.29
  • Published : 2016.02.01
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Abstract

This paper presents the internal oil leakage detection problem for a hydraulic double-rod cylinder. We represent the dynamics of the hydraulic cylinder as a convex combination of linear equations. To detect oil leakage, we propose a model-based fault detection observer design scheme. The observer is designed to be robust against disturbance. Sufficient design conditions are derived in the form of linear matrix inequalities. A numerical example is provided to verify the proposed techniques.

Keywords

Acknowledgement

Supported by : 한국해양과학기술진흥원

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  1. T—S Fuzzy Model-based Sampled-data Observer Design for Detecting Internal Oil Leakage in Single-rod Hydraulic Cylinder: LMI Approach vol.30, pp.5, 2016, https://doi.org/10.5574/KSOE.2016.30.5.405