A new Sliding Mode Control tuning approach for second-order inverse-response plus variable dead time processes
Abstract:
This work addresses a new set of tuning rules for Sliding Mode Control (SMC) applied to second-order inverse-response plus variable dead time processes. Descriptions of the dynamics of inverse response systems and sliding-mode controllers are first provided. Then, we present the design process for the set of SMC tuning rules, using dimensional analysis, experimental design, optimization, and model reduction techniques for set-point tracking. The obtained expressions are simple, which eases the application of the proposed step-by-step systematic methodology. The performance and robustness of the proposed SMC tuning method are compared to other well-known controllers, and then applied to a Van de Vusse isothermal reactor, which is a complex nonlinear second-order inverse-response system that exhibits variable dead time. The performance achieved with the new SMC tuning method is good for set-point tracking, while exhibiting a good behavior for disturbance rejection, and can be applied considering a wide-range of parameters of the process’ transfer function.
Año de publicación:
2022
Keywords:
- Dead-time
- Controller tuning
- Sliding Mode Control law
- non-minimum phase systems
- process control
Fuente:


Tipo de documento:
Article
Estado:
Acceso abierto
Áreas de conocimiento:
- Sistema de control
Áreas temáticas:
- Física aplicada
- Ciencias de la computación