A Method for Controlling the Permanent Magnet Linear Motor with the Counterweight by Pneumatic Cylinder

Abstract:

In the control model of the permanent magnet linear motor (PMLM), if the pneumatic cylinder is used to balance the weight, the pressure dynamic variation of both suction chamber and discharge chamber can affect the load force of model. The dynamic model of pneumatic cylinder is analyzed, and the equation of impedimental force caused by the single acting pneumatic cylinder is given out. With the combination of PMLM model, the system’s kinetics equation is established. A modified 3-tier composite control structure based on nonlinear force observer is put forward. The nonlinear part of the system is compensated effectively. The the experiment results demonstrate the practical applicability and efficiency of the proposed method.

• Periodical: Applied Mechanics and Materials (Volume 742)
• Pages: 477-484
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.742.477
• Online since: March 2015
• Authors: Sheng Chen, Dong Biao Zhao*, Yang Wei Wang
• Keywords: 3-Tier Composite Control, Impedimental Force, Linear Motor, Pneumatic Cylinder

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