Journal of South China University of Technology (Natural Science Edition) ›› 2011, Vol. 39 ›› Issue (7): 1-6.doi: 10.3969/j.issn.1000-565X.2011.07.001

• Electronics, Communication & Automation Technology •     Next Articles

Synchronous Control of High-Power All-Electric Bending Machine Based on Relative Coupling Strategy

Shi Bu-hai  Fang Zhi-xiong   

  1. School of Automation Science and Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2011-03-01 Revised:2011-04-13 Online:2011-07-25 Published:2011-06-03
  • Contact: 史步海(1963-) ，男，博士，副教授，主要从事计算机远程监控及智能控制、大时滞系统建模优化与控制、数控系统研究． E-mail:bhshi@scut.edu.cn
  • About author:史步海(1963-) ，男，博士，副教授，主要从事计算机远程监控及智能控制、大时滞系统建模优化与控制、数控系统研究．
  • Supported by:

    广东省教育部产学研合作项目( 2009B090300060)

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Abstract:

Proposed in this paper is a relative coupling-based multi-motor synchronous control algorithm for the high-power all-electric bending machine applied to the multiaxial synchronous bending of sheet metal. In this algorithm,multiple motors drive according to the position deviation synchronously,and the rapidity of each motor is improved by adopting the equivalent velocity and the acceleration feedforward,thus implementing preferable synchronization and meeting the accuracy requirements of sheet metal bending. Moreover,a modeling simulation and a practical test are performed on a bending-machine experiment platform. The results demonstrate that the proposed synchronous control algorithm is of high synchronization accuracy and strong robustness.

Key words: bending machine, synchronous control, relative coupling strategy, fuzzy PID

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