Multivariable PID control by decoupling
Autor
Vázquez Serrano, Francisco J.
Morilla, Fernando
Garrido, J.
Fecha
2016Materia
Decoupling controlPID control
Multivariable control
Centralized control
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This paper presents a new methodology to design multivariable PID controllers based on decoupling control. The method is presented for general n×n processes. In the design procedure, an ideal decoupling control with integral action is designed to minimize interactions. It depends on the desired open loop processes that are specified according to realizability conditions and desired closed loop performance specifications. These realizability conditions are stated and three common cases to define the open loop processes are studied and proposed. Then, controller elements are approximated to PID structure. From a practical point of view, the windup problem is also considered and a new anti-windup scheme for multivariable PID controller is proposed. Comparisons with other works demonstrate the effectiveness of the methodology through the use of several simulation examples and an experimental lab process.
Fuente
International Journal of Systems Science 47(5), 1054-1072 (2016)Versión del Editor
http://www.tandfonline.com/doi/abs/10.1080/00207721.2014.911390Ítems relacionados
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