Modeling and control of a novel pneumatic two-stage piezoelectric-actuated valve. (May 2021)

• Record Type: Journal Article
• Authors: Glück, Tobias; Büchl, Dominik; Krämer, Christian; Pfeffer, Andreas; Risle, Andreas; Hägele, Lena; Kugi, Andreas
• Is Part Of: Mechatronics. Volume 75(2021)
• Publication Date: 2021-05
• Subjects: Pneumatic valve -- Piezoelectric valve -- Hysteresis -- Position control -- Pressure control; Computer integrated manufacturing systems -- Periodicals; Flexible manufacturing systems -- Periodicals; Mechatronics -- Periodicals; Productique -- Périodiques; Fabrication, Systèmes flexibles de -- Périodiques; Mécatronique -- Périodiques; Computer integrated manufacturing systems; Flexible manufacturing systems; Mechatronics; Periodicals; 629.89
• DOI: 10.1016/j.mechatronics.2021.102529
• Languages: English
• ISSNs: 0957-4158

Abstract

Abstract: In manufacturing automation, there is a strong need for highly integrated intelligent components and subsystems. In this context, a novel two-stage pneumatic piezoelectric-actuated valve has recently been developed. It covers a wide range of pneumatic products and functions in one compact component and enables flexible and adaptive plant operation. The valve consists of four poppet main-stage valves that are driven by piezoelectrically actuated pre-stage valves and includes pressure sensors as well as a powerful computational unit. This work presents the systematic development of a model-based position control algorithm including modeling, identification, and controller design. The control concept comprises a hysteresis compensation based on the Prandtl–Ishlinskii operator theory, a flatness-based feedforward controller, and a PI feedback controller with appropriate anti-windup measures. Measurement results from a test bench demonstrate the performance of the proposed concept.