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Robust Controller Design And Pid Tuning For Multivariable Processes
Author(s) -
Tan Wen,
Chen Tongwen,
Marquez Horacio J.
Publication year - 2002
Publication title -
asian journal of control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.769
H-Index - 53
eISSN - 1934-6093
pISSN - 1561-8625
DOI - 10.1111/j.1934-6093.2002.tb00085.x
Subject(s) - multivariable calculus , pid controller , control theory (sociology) , robustness (evolution) , computation , control engineering , computer science , robust control , engineering , control system , algorithm , control (management) , temperature control , artificial intelligence , biochemistry , chemistry , electrical engineering , gene
In this paper, a robust controller design method is first formulated to deal with both performance and robust stability specifications for multivariable processes. The optimum problem is then dealt with using a loop‐shaping H ∞ approach, which gives a sub‐optimal solution. Then a PID approximation method is proposed to reduce a high‐order controller. The whole procedure involves selecting several parameters and the computation is simple, so it serves as a PID tuning method for multivariable processes. Examples show that the method is easy to use and the resulting PID settings have good time‐domain performance and robustness.