[1] Zhang Qizhi, Zhang Weidong,. Time-stamped predictive functional control for networkedcontrol systems with random delays [J]. Journal of Southeast University (English Edition), 2005, 21 (2): 149-152. [doi:10.3969/j.issn.1003-7985.2005.02.007]

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Time-stamped predictive functional control for networkedcontrol systems with random delays()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

21

Issue:

2005 2

Page:

149-152

Research Field:

Automation

Publishing date:

2005-06-30

Info

Title:

Time-stamped predictive functional control for networkedcontrol systems with random delays

Author(s):

Zhang Qizhi;  Zhang Weidong

Department of Automation, Shanghai Jiaotong University, Shanghai 200030, China

Keywords:

networked control systems;  random delays;  predictive functional control;  industrial Ethernet

PACS:

TP273

DOI:

10.3969/j.issn.1003-7985.2005.02.007

Abstract:

The random delays in a networked control system(NCS)degrade control performance and can even destabilize the control system.To deal with this problem, the time-stamped predictive functional control(PFC)algorithm is proposed, which generalizes the standard PFC algorithm to networked control systems with random delays.The algorithm uses the time-stamp method to estimate the control delay, predicts the future outputs based on a discrete time delay state space model, and drives the control law that applies to an NCS from the idea of a PFC algorithm.A networked control system was constructed based on TrueTime simulator, with which the time-stamped PFC algorithm was compared with the standard PFC algorithm.The response curves show that the proposed algorithm has better control performance.

References:

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[10] Henriksson D, Cervin A.TrueTime 1.2 reference manual[EB/OL].http://www.control.lth.se/~dan/truetime/.2003-10-23/2004-09-15.

Memo

Memo:

Biographies: Zhang Qizhi(1978—), male, graduate;Zhang Weidong(corresponding author), male, doctor, professor, wdzhang@sjtu.edu.cn.

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