Enhanced fractional-order PIλDμ control for a forced circulation evaporator system via advanced disturbance observer

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Erentürk K., Erentürk S.

ISA Transactions, cilt.131, ss.167-177, 2022 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 131
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1016/j.isatra.2022.05.022
  • Dergi Adı: ISA Transactions
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Applied Science & Technology Source, Communication Abstracts, Computer & Applied Sciences, EMBASE, INSPEC, MEDLINE
  • Sayfa Sayıları: ss.167-177
  • Anahtar Kelimeler: Disturbance observer, Fractional order control, PI?D? controllers, Inverted decoupling structure, Forced circulation evaporator, PREDICTIVE CONTROL, NEURAL-NETWORKS, DESIGN, IDENTIFICATION
  • Atatürk Üniversitesi Adresli: Evet

Özet

© 2022 ISAStrong disturbances, time delays, and coupling effects complicate the control of evaporator systems. In this paper, to overcome these difficulties a three-stage controller design is given and as a first step a disturbance observer (DOB) is designed. Then, fractional order PIλDμ controllers (PIλDμ FOC) with inverted decoupling structure are realized. Finally, PIλDμ FOC is enhanced via DOB and applied to control of a considered forced circulation evaporator system. Controlling the evaporator system with the DOB-enhanced PIλDμ FOC is showed more accurate and precise control results when compared with the optimally tuned PID and fuzzy logic controller (FLC). The DOB-enhanced PIλDμ FOC method has remarkable superiority in disturbance rejection and the proposed control method is improved the tracking ability of the system for reference changes.