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Two-Degrees-of-Freedom (2DOF) Control of SISO Processes

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Industrial Process Identification and Control Design

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Abstract

Note that even for the same type of set-point and load disturbance, the water-bed effect between the set-point response and the load disturbance response will become very severe for an integrating or unstable process in the unity feedback control structure (Zhou et~al. 1996).

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References

  • Chien I-L, Peng SC, Liu JH (2002) Simple control method for integrating processes with long deadtime. J Process Control 12(3):391–404

    Article  Google Scholar 

  • Garcia P, Albertos P (2008) A new dead-time compensator to control stable and integrating processes with long dead-time. Automatica 44:1062–1071

    Article  MathSciNet  Google Scholar 

  • Garcia P, Albertos P, Hägglund T (2006) Control of unstable non-minimum-phase delayed systems. J Process Control 16:1099–1111

    Article  Google Scholar 

  • Hang CC, Wang QG, Yang XP (2003) A modified Smith predictor for a process with an integrator and long dead time. Ind Eng Chem Res 42:484–489

    Article  Google Scholar 

  • Huang H-P, Chen C-C (1997) Control-system synthesis for open-loop unstable process with time delay. IEE Proc Control Theory Appl 144(4):334–346

    Article  MATH  Google Scholar 

  • Kaya I (2004) Two-degree-of-freedom IMC structure and controller design for integrating processes based on gain and phase-margin specifications. IEE Proc Control Theory Appl 151(4):401–407

    Article  Google Scholar 

  • Kwak H, Whan S, Lee IB (2001) Modified Smith predictor for integrating processes: comparisons and proposition. Ind Eng Chem Res 40:1500–1506

    Article  Google Scholar 

  • Lee Y, Lee J, Park S (2000) PID controllers tuning for integrating and unstable processes with time delay. Chem Eng Sci 55:3481–3493

    Article  Google Scholar 

  • Liu T, Gao F (2008) Identification of integrating and unstable processes from relay feedback. Comput Chem Eng 32(12):3038–3056

    Article  Google Scholar 

  • Liu T, Gao F (2010a) Closed-loop step response identification of integrating and unstable processes. Chem Eng Sci 65(10):2884–2895

    Article  Google Scholar 

  • Liu T, Gao F (2010b) New insight into internal model control filter design for load disturbance rejection. IET Control Theory Appl 4(3):448–460

    Article  MathSciNet  Google Scholar 

  • Liu T, Gao F (2011) Enhanced IMC design of load disturbance rejection for integrating and unstable processes with slow dynamics. ISA Trans 50(2):239–248

    Article  Google Scholar 

  • Liu T, Cai YZ, Gu DY, Zhang WD (2005a) New modified Smith predictor scheme for controlling integrating and unstable processes. IEE Proc Control Theory Appl 152(2):238–246

    Article  Google Scholar 

  • Liu T, Zhang WD, Gu DY (2005b) Analytical two-degree-of-freedom tuning design for open-loop unstable processes with time delay. J Process Control 15:559–572

    Article  Google Scholar 

  • Lu X, Yang YS, Wang QG, Zheng WX (2005) A double two-degree-of-freedom control scheme for improved control of unstable delay processes. J Process Control 15:605–614

    Article  Google Scholar 

  • Majhi S, Atherton DP (2000) Obtaining controller parameters for a new Smith predictor using autotuning. Automatica 36:1651–1658

    Article  MathSciNet  MATH  Google Scholar 

  • MatauÅ¡ek MR, Micic AD (1999) On the modified Smith predictor for controlling a process with an integrator and long dead-time. IEEE Trans Autom Control 44(8):1603–1606

    Article  MATH  Google Scholar 

  • Morari M, Zafiriou E (1989) Robust process control. Prentice Hall, Englewood Cliff

    Google Scholar 

  • Normey-Rico JE, Camacho EF (2002) A unified approach to design dead-time compensators for stable and integrative processes with dead-time. IEEE Trans Autom Control 47(2):299–305

    Article  MathSciNet  Google Scholar 

  • Normey-Rico JE, Camacho EF (2009) Unified approach for robust dead-time compensator design. J Process Control 19:38–47

    Article  Google Scholar 

  • Rao AS, Chidambaram M (2007) Simple analytical design of modified Smith predictor with improved performance for unstable first-order plus time delay (FOPTD) processes. Ind Eng Chem Res 46:4561–4571

    Article  Google Scholar 

  • Skogestad S (2003) Simple analytical rules for model reduction and PID controller tuning. J Process Control 13(4):291–309

    Article  MathSciNet  Google Scholar 

  • Skogestad S, Postlethwaite I (2005) Multivariable feedback control: analysis and design, 2nd edn. Wiley, Chichester

    Google Scholar 

  • Tan W, Marquez HJ, Chen T (2003) IMC design for unstable processes with time delays. J Process Control 13:203–213

    Article  Google Scholar 

  • Tian YC, Gao F (1999) Control of integrator processes with dominant time delay. Ind Eng Chem Res 39:2979–2983

    Article  Google Scholar 

  • Yang XP, Wang QG, Hang CC, Lin C (2002) IMC-Based control system design for unstable processes. Ind Eng Chem Res 41(17):4288–4294

    Article  Google Scholar 

  • Zhang WD, Gu DY, Wang W, Xu X (2004) Quantitative performance design of a modified Smith predictor for unstable processes with time delay. Ind Eng Chem Res 43:56–62

    Article  Google Scholar 

  • Zhang WD, Gu DY, Rieber JM (2008) Optimal dead-time compensator design for stable and integrating processes with time delay. J Process Control 18:449–457

    Article  Google Scholar 

  • Zhong Q-C, Mirkin L (2002) Control of integral processes with dead time. Part II: quantitative analysis. IEE Proc Control Theory Appl 149(4):291–296

    Article  Google Scholar 

  • Zhong Q-C, Normey-Rico JE (2002) Control of integral processes with dead time. Part I: disturbance observer-based 2DOF control scheme. IEE Proc Control Theory Appl 149(4): 285–290

    Article  Google Scholar 

  • Zhou KM, Doyle JC, Glover K (1996) Robust and optimal control. Prentice Hall, Englewood Cliff

    MATH  Google Scholar 

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Liu, T., Gao, F. (2012). Two-Degrees-of-Freedom (2DOF) Control of SISO Processes. In: Industrial Process Identification and Control Design. Advances in Industrial Control. Springer, London. https://doi.org/10.1007/978-0-85729-977-2_8

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  • DOI: https://doi.org/10.1007/978-0-85729-977-2_8

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