JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2016, Vol. 46 ›› Issue (5): 64-67.doi: 10.6040/j.issn.1672-3961.0.2015.407

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An IMC-PID robust control method for process of integrator plus time delay

HOU Mingdong1,2, WANG Yinsong1, TIAN Jie3   

  1. 1. School of Control and Computer Engineering, North China Electric Power University, Baoding 071003, Hebei, China;
    2. Department of Electrics and Automation, Shandong Labor Vocational and Technical College, Jinan 250100, Shandong, China;
    3. College of Information Technology, Shandong Women's University, Jinan 250100, Shandong, China
  • Received:2015-12-08 Online:2016-10-20 Published:2015-12-08

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Abstract: For the integrated plus time delay in industrial system, a design and parameters tuning approach of internal model control PID(IMCPID)controller was proposed. The integrator in the model was replaced by a first-order lag, the steady-state performance of the system was improved, the time-delay term in the model was approached with the first-order Taylor expansion, and the design method of IMC-PID controller was founded. The analytical expression for robust tuning the adjustable parameter of the IMC-PID controller was derived based on the robustness index of the control system. The simulation results showed that the proposed method could provide a better dynamic performance and robustness against parameters perturbation, and the blindness of conventional method for controller parameter tuning was overcome.

Key words: dynamic response, internal model control-PID, integral process with time-delay, robustness, parameter tuning

CLC Number: 

  • TP273
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