Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Autotuning positive feedback time delay controller for dead time processes.

K M Tsang1, A Besharati Rad, W L Chan

  • 1Department of Electrical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon. eekmtsan@polyu.edu.hk

ISA Transactions
|May 17, 2002
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Letter to the Editor regarding "Questionable indication for postoperative radiotherapy after surgery for metastases of the major long bones": A cautionary note on methodology and analysis.

Journal of bone oncology·2026
Same author

Corrigendum to 'Improving chemotherapy-induced peripheral neuropathy in cancer patients using a combined qigong and self-administered acupressure intervention: a randomized controlled trial': [ESMO Open Volume 10, Issue 9, September 2025, 105565].

ESMO open·2025
Same author

Incidence, risk factors, and clinical outcomes of peripartum cardiomyopathy in Hong Kong.

Hong Kong medical journal = Xianggang yi xue za zhi·2025
Same author

Improving chemotherapy-induced peripheral neuropathy in cancer patients using a combined qigong and self-administered acupressure intervention: a randomized controlled trial.

ESMO open·2025
Same author

Targeting TGF-β signaling, oxidative stress, and cellular senescence rescues osteoporosis in gerodermia osteodysplastica.

Aging cell·2024
Same author

Targeting androgen receptor in BQ323636.1 overexpressing oestrogen receptor-positive breast cancer to overcome aromatase inhibitor resistance: abridged secondary publication.

Hong Kong medical journal = Xianggang yi xue za zhi·2023
Same journal

Prescribed-time event-triggered resilient containment control for multiagent systems against DoS attacks and disturbances.

ISA transactions·2026
Same journal

Incremental learning with prototype calibration and dynamic proxy for wind turbine fault diagnosis under time-varying operating conditions.

ISA transactions·2026
Same journal

Optimization of mode discerning control for nonlinear hybrid systems subject to unknown inputs with applications to active fault diagnosis.

ISA transactions·2026
Same journal

Convergence evaluation of optimization-based stochastic iterative learning control.

ISA transactions·2026
Same journal

Adaptive utility-aware event-triggered reinforcement learning for hybrid attack scheduling against remote state estimation.

ISA transactions·2026
Same journal

Hybrid vehicle state estimation using closed-form liquid neural networks and nonlinear Kalman filtering.

ISA transactions·2026
See all related articles

Biased relay feedback tests effectively determine ultimate gains and frequencies for dead time processes. This enables a novel time delay controller that outperforms traditional PID controllers, validated by experimental results.

Area of Science:

  • Control Engineering
  • Process Systems Engineering

Background:

  • Dead time processes present significant control challenges.
  • Traditional controller tuning methods may struggle with process dynamics.

Purpose of the Study:

  • To develop an effective controller tuning method for dead time processes.
  • To introduce a novel time delay controller for improved performance.

Main Methods:

  • Biased relay feedback tests were used to identify process parameters (ultimate gain and frequency).
  • First-order-plus-dead-time (FOPDT) models were fitted to experimental data.
  • A time delay controller was designed based on the FOPDT model.

Main Results:

  • Ultimate gains and frequencies were accurately estimated.

Related Experiment Videos

  • The proposed time delay controller demonstrated superior performance compared to Ziegler-Nichols tuned PID controllers.
  • Experimental validation confirmed the effectiveness of the tuning scheme and controller.

    • Conclusions:

    • The biased relay feedback method provides reliable process identification for dead time systems.
    • The derived time delay controller offers a significant performance improvement over conventional PID controllers.
    • The proposed approach is a viable and effective tuning scheme for industrial applications.