Decoupling control of three-tank liquid level systems based on feedforward compensation

  • Authors:

  • Qinglan Wang;Lihong Xing;Xuewen Shi

  • Affiliations:

  • College of Electrical Information and Automation, Qufu Normal University, Rizhao, Shandong, China;College of Electrical Information and Automation, Qufu Normal University, Rizhao, Shandong, China;College of Electrical Information and Automation, Qufu Normal University, Rizhao, Shandong, China

  • Venue:
  • CCDC'09 Proceedings of the 21st annual international conference on Chinese control and decision conference
  • Year:
  • 2009

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Abstract

By considering couplings between loops as a kind of measurable disturbance, a steady-state decoupling method based on feedforward compensation is proposed for a three-tank liquid level system often encountered in practical process control. In addition, the three-tank liquid level system's dynamic model with structure of two-input and two-output is presented according to its working principle. Finally simulation experiments given in C++Builder language demonstrate the effectiveness of the proposed method.