Active disturbance rejection control of test sample in electrostatic suspension system

Biao Xiang, Qingyuan Guo, Waion Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review


The electrostatic suspension system is a contactless detective method to analyze the material properties of test sample. In this article, the characteristics about electric field force and electric image force of an electrostatic suspension system are analyzed, and the force analysis and dynamic functions of test sample in the electrostatic suspension system are developed. The suspension precision of test sample in vertical direction is sensitive to the gravity and the disturbances. Therefore, an active disturbance rejection control (ADRC) model including a displacement control loop and an acceleration control loop is designed to the suspension control of test sample. The simulation and experiment are conducted to validate the effectiveness of ADRC model when the random and impulse disturbances are imposed on the test sample in vertical direction, and results indicate that the ADRC model could improve the robust stability of test sample and reduce the oscillation amplitude of high voltage electrodes.

Original languageEnglish
Article number107187
JournalMechanical Systems and Signal Processing
Publication statusPublished - 1 Feb 2021


  • Active disturbance rejection control
  • Electric field force
  • Electrostatic suspension system
  • High voltage electrode

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Signal Processing
  • Civil and Structural Engineering
  • Aerospace Engineering
  • Mechanical Engineering
  • Computer Science Applications

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