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Experimental validation of an efficient disturbance rejection method for dead-time processes using internal model control

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Abstract
When controlling industrial processes, setpoint tracking and disturbance rejection play an important part in the design and tuning of the PID controller parameters, especially since most of these processes exhibit dead-times. Internal Model Control (IMC) algorithms have proven to be quite efficient in setpoint tracking issues. However, the basic tuning rules for IMC lead to PID controllers that cause a sluggish disturbance rejection, especially for delay dominant processes (i.e. with big ratio of dead-time versus the process time constant). In the current paper, the experimental validation of a novel idea for tuning IMC controllers for improved disturbance rejection is presented. The method is based on using a disturbance filter that compensates for the dead-time, provided that the process is affected by stochastic disturbances having their spectral energy in a narrow frequency band (such as quasi-periodic disturbances). Diophantine equations are used to compute the disturbance filter coefficients. The exaperimental case study consists in the Quanser six tanks process.
Keywords
component, IMC, Disturbance rejection, Dead-time processes, experimental validation, IMC-PID DESIGN, PERFORMANCE/ROBUSTNESS TRADEOFF

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MLA
De Keyser, Robain, and Cristina I. Muresan. “Experimental Validation of an Efficient Disturbance Rejection Method for Dead-Time Processes Using Internal Model Control.” 2019 24th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), IEEE, 2019, pp. 475–80, doi:10.1109/etfa.2019.8869004.
APA
De Keyser, R., & Muresan, C. I. (2019). Experimental validation of an efficient disturbance rejection method for dead-time processes using internal model control. In 2019 24th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA) (pp. 475–480). Zaragoza, Spain: IEEE. https://doi.org/10.1109/etfa.2019.8869004
Chicago author-date
De Keyser, Robain, and Cristina I. Muresan. 2019. “Experimental Validation of an Efficient Disturbance Rejection Method for Dead-Time Processes Using Internal Model Control.” In 2019 24th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), 475–80. IEEE. https://doi.org/10.1109/etfa.2019.8869004.
Chicago author-date (all authors)
De Keyser, Robain, and Cristina I. Muresan. 2019. “Experimental Validation of an Efficient Disturbance Rejection Method for Dead-Time Processes Using Internal Model Control.” In 2019 24th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), 475–480. IEEE. doi:10.1109/etfa.2019.8869004.
Vancouver
1.
De Keyser R, Muresan CI. Experimental validation of an efficient disturbance rejection method for dead-time processes using internal model control. In: 2019 24th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA). IEEE; 2019. p. 475–80.
IEEE
[1]
R. De Keyser and C. I. Muresan, “Experimental validation of an efficient disturbance rejection method for dead-time processes using internal model control,” in 2019 24th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), Zaragoza, Spain, 2019, pp. 475–480.
@inproceedings{8667168,
  abstract     = {When controlling industrial processes, setpoint tracking and disturbance rejection play an important part in the design and tuning of the PID controller parameters, especially since most of these processes exhibit dead-times. Internal Model Control (IMC) algorithms have proven to be quite efficient in setpoint tracking issues. However, the basic tuning rules for IMC lead to PID controllers that cause a sluggish disturbance rejection, especially for delay dominant processes (i.e. with big ratio of dead-time versus the process time constant). In the current paper, the experimental validation of a novel idea for tuning IMC controllers for improved disturbance rejection is presented. The method is based on using a disturbance filter that compensates for the dead-time, provided that the process is affected by stochastic disturbances having their spectral energy in a narrow frequency band (such as quasi-periodic disturbances). Diophantine equations are used to compute the disturbance filter coefficients. The exaperimental case study consists in the Quanser six tanks process.},
  author       = {De Keyser, Robain and Muresan, Cristina I.},
  booktitle    = {2019 24th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA)},
  isbn         = {9781728103037},
  issn         = {1946-0740},
  keywords     = {component,IMC,Disturbance rejection,Dead-time processes,experimental validation,IMC-PID DESIGN,PERFORMANCE/ROBUSTNESS TRADEOFF},
  language     = {eng},
  location     = {Zaragoza, Spain},
  pages        = {475--480},
  publisher    = {IEEE},
  title        = {Experimental validation of an efficient disturbance rejection method for dead-time processes using internal model control},
  url          = {http://dx.doi.org/10.1109/etfa.2019.8869004},
  year         = {2019},
}

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