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Original Articles

Tuning of PID Controllers for Unstable Systems Using Direct Synthesis Method

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Pulakraj Aryan, G. Lloyds Raja & Ramon Vilanova. (2023) Experimentally verified optimal bi-loop re-located IMC strategy for unstable and integrating systems with dead time. International Journal of Systems Science 54:7, pages 1531-1549.
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Dipjyoti Das, Sudipta Chakraborty & Asim Kumar Naskar. (2023) Controller design on a new 2DOF PID structure for different processes having integrating nature for both the step and ramp type of signals. International Journal of Systems Science 54:7, pages 1423-1450.
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C. Ravikishore, D.T.V. Praveen Kumar & R. Padma Sree. (2021) Enhanced performance of PID controllers for unstable time delay systems using direct synthesis method. Indian Chemical Engineer 63:3, pages 293-309.
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Erdal Cokmez & Ibrahim Kaya. Optimal design of I-PD controller for disturbance rejection of time delayed unstable and integrating-unstable processes. International Journal of Systems Science 0:0, pages 1-29.
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Articles from other publishers (29)

Sanjay Kumar & Moina Ajmeri. (2024) Analytically designed dual-loop fractional-order IMC for integrating plants with inverse behavior. International Journal of Dynamics and Control.
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A. Adithya Kashyap, Suresh Kumar Chiluka, Seshagiri Rao Ambati & Gara Uday Bhaskar Babu. (2024) Smith predictor based fractional order controller design for improved performance and robustness of unstable FOPTD processes. Chemical Product and Process Modeling 0:0.
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Divakar Kuruna & Praveen Kumar Medarametla. A novel PID control scheme with higher-order filter for unstable second order process with time delay. A novel PID control scheme with higher-order filter for unstable second order process with time delay.
Sanjay Kumar & Moina Ajmeri. (2023) Double loop fractional order IMC for integrating plants with inverse characteristics and delay. Double loop fractional order IMC for integrating plants with inverse characteristics and delay.
Bipin Singh, Bharat Verma & Prabin Kumar Padhy. (2023) IMC-PID Controller Based on Indirect Design Approach for FOUTDP. IMC-PID Controller Based on Indirect Design Approach for FOUTDP.
Sanjay Kumar & Moina Ajmeri. (2023) Enhanced design of PI controller with lead-lag filter for unstable and integrating plus time delay processes. Chemical Product and Process Modeling 18:5, pages 793-809.
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Rammurti Meena, Dipjyoti Das, Vipin Chandra Pal & Sudipta Chakraborty. (2023) Smith-predictor based enhanced Dual-DOF fractional order control for integrating type CSTRs. International Journal of Chemical Reactor Engineering 21:9, pages 1091-1106.
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Dipjyoti Das, Sudipta Chakraborty & G. Lloyds Raja. (2023) Enhanced dual-DOF PI-PD control of integrating-type chemical processes. International Journal of Chemical Reactor Engineering 21:7, pages 907-920.
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J. Carrillo-Ahumada, C. Nolasco-Hipólito, G. Reynoso-Meza, I.I. Ruiz-López & M.A. García-Alvarado. (2023) A review from 1996 to 2021 of tuning methodologies and controller structures applied for an unstable/stable (bio)reactor with imperfect mixing and bypass. ISA Transactions 138, pages 460-473.
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Laura Celentano. (2023) A fast design technique for robust industrial controllers. Journal of the Franklin Institute 360:8, pages 5689-5727.
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Moina Ajmeri. (2022) Analytical design of enhanced PID controller with set-point filter for unstable processes with time delay. International Journal of Dynamics and Control 11:2, pages 564-573.
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Deepak Kumar & G. Lloyds Raja. (2023) Unified fractional indirect IMC-based hybrid dual-loop strategy for unstable and integrating type CSTRs. International Journal of Chemical Reactor Engineering 21:3, pages 251-272.
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Sanghun Lim, Youngjin Yook, Jea Pil Heo, Chang Gyu Im, Kyung Hwan Ryu & Su Whan Sung. (2023) A new PID controller design using differential operator for the integrating process. Computers & Chemical Engineering 170, pages 108105.
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Shweta Kumari, Pulakraj Aryan, Deepak Kumar & G. Lloyds Raja. (2023) Hybrid dual-loop control method for dead-time second-order unstable inverse response plants with a case study on CSTR. International Journal of Chemical Reactor Engineering 21:1, pages 11-21.
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Pulakraj Aryan, G. Lloyds Raja, Ramon Vilanova & Montse Meneses. (2023) Repositioned Internal Model Control Strategy on Time-Delayed Industrial Processes With Inverse Behavior Using Equilibrium Optimizer. IEEE Access 11, pages 54556-54568.
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Pulakraj Aryan & G. Lloyds Raja. (2022) A novel equilibrium optimized double-loop control scheme for unstable and integrating chemical processes involving dead time. International Journal of Chemical Reactor Engineering 20:12, pages 1341-1360.
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Deepak Kumar, Pulakraj Aryan & G. Lloyds Raja. (2022) Decoupled double‐loop FOIMC‐PD control architecture for double integral with dead time processes . The Canadian Journal of Chemical Engineering 100:12, pages 3691-3703.
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Vamsi Vankayalapati, Gorja Dinesh Babu, Jalli Sai Dhanush & Chandra Shekar Besta. (2022) PID controller tuning for time delayed second order unstable process with 2 RHPs. PID controller tuning for time delayed second order unstable process with 2 RHPs.
Banda Sai Rahul & Moina Ajmeri. (2022) Enhanced design of PID controller and noise filter for second order stable and unstable processes with time delay. Chemical Product and Process Modeling 0:0.
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Deepak Kumar, Pulakraj Aryan & G. Lloyds Raja. (2021) Design of a novel fractional‐order internal model controller‐based Smith predictor for integrating processes with large dead‐time. Asia-Pacific Journal of Chemical Engineering 17:1.
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Shweta Kumari, Pulakraj Aryan & G. Lloyds Raja. (2021) Design and simulation of a novel FOIMC-PD/P double-loop control structure for CSTRs and bioreactors. International Journal of Chemical Reactor Engineering 19:12, pages 1287-1303.
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G. Lloyds Raja & Ahmad Ali. (2021) New PI-PD Controller Design Strategy for Industrial Unstable and Integrating Processes with Dead Time and Inverse Response. Journal of Control, Automation and Electrical Systems 32:2, pages 266-280.
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G. Lloyds Raja. (2021) Enhanced Design of a PI-PD Based Smith Predictor for Industrial Plants. IFAC-PapersOnLine 54:21, pages 79-84.
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Ashraf Raza & Md Nishat Anwar. (2020) A unified approach of PID controller design for unstable processes with time delay不稳定时滞过程的统一PID 控制器设计方法. Journal of Central South University 27:9, pages 2643-2661.
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M.V. Srikanth & Narri Yadaiah. (2020) Optimal parameter tuning of Modified Active Disturbance Rejection Control for unstable time-delay systems using an AHP combined Multi-Objective Quasi-Oppositional Jaya Algorithm. Applied Soft Computing 86, pages 105881.
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Ashraf Raza & Md Nishat Anwar. (2019) Direct Synthesis Based PID Controller Design for Time-Delayed Unstable Processes in Parallel Control Structure. Journal of Control, Automation and Electrical Systems 30:6, pages 879-891.
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Munna Kumar, Durga Prasad, Balendu Shekher Giri & Ram Sharan Singh. (2019) Temperature control of fermentation bioreactor for ethanol production using IMC-PID controller. Biotechnology Reports 22, pages e00319.
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Ghousiya Begum K, Seshagiri Rao A & Radhakrishnan T.K.. (2018) Performance assessment of control loops involving unstable systems for set point tracking and disturbance rejection. Journal of the Taiwan Institute of Chemical Engineers 85, pages 1-17.
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C. Ravi Kishore & R. Padma Sree. (2017) Tunning of PID controllers for unstable time delay systems using synthesis method. Tunning of PID controllers for unstable time delay systems using synthesis method.

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