Adaptive optimal valve control for a resonance fluid actuator

Yannis Koveos, Antonios Tzes

    Research output: Contribution to conferencePaper

    Abstract

    In this article, an optimal control scheme for a piezo - hydraulic actuator exploiting resonance effects is presented. The proposed actuator relies its operation on the significant pressure built up in a fluid pipe during resonance. The actuator's piston houses a valve which rectifies the wave's motion into direct mechanical motion. The discretization of the partial differential equation from the compressible Navier - Stokes equations that captures the fluid - wave propagation leads to a state space description suitable for the development of control algorithms. The valve and piezo dynamics can be embedded in this model for examining the overall performance of the actuator. An optimal controller is designed to maximize the differential pressure across the piston leading to a bang-bang type of control input. The phase and pulse width of the control effort are adjusted based on an adaptive scheme using the gradient of the cost function. Simulation studies are offered for verifying the actuator's principle of operation. In comparison to a passive valve configuration this scheme offers a significant improvement measured by the generated blocking forces.

    Original languageEnglish (US)
    Pages1438-1443
    Number of pages6
    DOIs
    StatePublished - Dec 1 2009
    Event35th Annual Conference of the IEEE Industrial Electronics Society, IECON 2009 - Porto, Portugal
    Duration: Nov 3 2009Nov 5 2009

    Other

    Other35th Annual Conference of the IEEE Industrial Electronics Society, IECON 2009
    CountryPortugal
    CityPorto
    Period11/3/0911/5/09

    Fingerprint

    Actuators
    Fluids
    Pistons
    Hydraulic actuators
    Cost functions
    Wave propagation
    Navier Stokes equations
    Partial differential equations
    Pipe
    Controllers

    Keywords

    • Optimal valve control
    • Piezo - hydraulic actuation
    • Resonance Fluid Actuator

    ASJC Scopus subject areas

    • Control and Systems Engineering
    • Electrical and Electronic Engineering

    Cite this

    Koveos, Y., & Tzes, A. (2009). Adaptive optimal valve control for a resonance fluid actuator. 1438-1443. Paper presented at 35th Annual Conference of the IEEE Industrial Electronics Society, IECON 2009, Porto, Portugal. https://doi.org/10.1109/IECON.2009.5414723

    Adaptive optimal valve control for a resonance fluid actuator. / Koveos, Yannis; Tzes, Antonios.

    2009. 1438-1443 Paper presented at 35th Annual Conference of the IEEE Industrial Electronics Society, IECON 2009, Porto, Portugal.

    Research output: Contribution to conferencePaper

    Koveos, Y & Tzes, A 2009, 'Adaptive optimal valve control for a resonance fluid actuator' Paper presented at 35th Annual Conference of the IEEE Industrial Electronics Society, IECON 2009, Porto, Portugal, 11/3/09 - 11/5/09, pp. 1438-1443. https://doi.org/10.1109/IECON.2009.5414723
    Koveos Y, Tzes A. Adaptive optimal valve control for a resonance fluid actuator. 2009. Paper presented at 35th Annual Conference of the IEEE Industrial Electronics Society, IECON 2009, Porto, Portugal. https://doi.org/10.1109/IECON.2009.5414723
    Koveos, Yannis ; Tzes, Antonios. / Adaptive optimal valve control for a resonance fluid actuator. Paper presented at 35th Annual Conference of the IEEE Industrial Electronics Society, IECON 2009, Porto, Portugal.6 p.
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