Mixed sensitivity ∞ controller design for force tracking control of electro-hydraulic servo system

Salman Ijaz, Umair Javaid, Linyan, Muhammad Ammar Ashraf, Yasir Ali Khan

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

The paper presents mixed sensitivity H controller design for force tracking control of electro-hydraulic servo system. The system is inherently nonlinear and includes hard nonlinearity, like the nonlinear relationship between pressure and flow rate which effect system dynamics and deteriorate the nominal behavior of the system. To cope up with such a nonlinear function and enhancing the system performance, mixed sensitivity H controller is designed. A 3rd order linear time invariant model of system is identified based on input-output data from experimental setup. The weighting filters are included in the system in design phase and are tuned in such a way that the desire performance can be achieved. Simulation results on linear and nonlinear system show the better force tracking in comparison with linear quadratic regulatory control. The proposed technique is found robust in the presence of disturbance.

Original languageEnglish
Title of host publicationProceedings of 2018 15th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages291-297
Number of pages7
ISBN (Electronic)9781538635643
DOIs
Publication statusPublished - 9 Mar 2018
Externally publishedYes
Event15th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2018 - Islamabad, Pakistan
Duration: 9 Jan 201813 Jan 2018

Publication series

NameProceedings of 2018 15th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2018
Volume2018-January

Conference

Conference15th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2018
Country/TerritoryPakistan
CityIslamabad
Period9/01/1813/01/18

Keywords

  • Electro-hydraulic servo system
  • H Controller
  • linear time invariant
  • weighting function

ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanics of Materials
  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials
  • Metals and Alloys
  • Polymers and Plastics

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