Gain-scheduled vibration control in consideration of actuator saturation

Noriaki Itagaki, Hidekazu Nishimura

Research output: Contribution to conferencePaperpeer-review


In this paper we propose a design method for active seismic isolation control taking account of actuator saturation. By using a hyperbolic tangential function that is differentiate to controller output, we formulate the linear parameter varying system according to the controller output and design a gain-scheduled controller. By carrying out simulations and experiments of seismic excitation, our proposed gain-scheduled controller is compared with an H∞ fixed controller or a sliding mode controller. It is verified that the proposed controller maintains performance of isolation even if a large earthquake with which the actuator saturation occurs comes, although the other controllers lower the performance than uncontrolled case.

Original languageEnglish
Number of pages6
Publication statusPublished - 2004 Dec 1
Externally publishedYes
Event2004 IEEE International Conference on Control Applications - Taipei, Taiwan, Province of China
Duration: 2004 Sept 22004 Sept 4


Other2004 IEEE International Conference on Control Applications
Country/TerritoryTaiwan, Province of China

ASJC Scopus subject areas

  • Engineering(all)


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