Dual Piezoelectric-Driving Pneumatic Digital Valve Control Method Simulation Research

You Xiong Xu; Song Qing Zhu

doi:10.4028/www.scientific.net/AMR.816-817.367

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 816-817Dual Piezoelectric-Driving Pneumatic Digital Valve...

Dual Piezoelectric-Driving Pneumatic Digital Valve Control Method Simulation Research

Abstract:

Because its pilot stage is a two-position tree-way valve, the previously research piezoelectric type pneumatic digital valve also constantly works in on or off state even in the case of output stable pressure, which makes the valve with pressure fluctuation, waste gas and other shortcomings. In order to overcome the above problem, a novel pneumatic digital valve driven by dual piezoelectric is presented in this thesis. And its simulation model is built based on the AMESim and Matlab/simulink joint simulation platform. On this basis, its control method is researched by the simulation. The simulation shows that the Bang-Bang and the PWM control algorithm can basically achieve the digital proportional control of the valve, but the valve has overshoot. For this, the compound control algorithm with PID plus PWM is proposed to control the valve. The simulation results show that this algorithm is effective which can reduce the pressure overshoot.

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Periodical:

Advanced Materials Research (Volumes 816-817)

Pages:

367-370

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.816-817.367

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Online since:

September 2013

Authors:

You Xiong Xu, Song Qing Zhu

Keywords:

Bang-Bang, Control Method, Digital Valve, Piezoelectric, PWM

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References

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