Dr. Ahmad Ali

Dr. Ahmad Ali
Associate Professor
Ph: +91-612-302 8044
ali[*AT]iitp.ac.in
Research Areas
  • Active disturbance rejection methods, All Stabilizing Controller Design, Controller Design for Power Electronic Converters
Courses taught at IIT P
  • BTech: EE 102: Basic Electronics Laboratory EE 220: Signal, System and Networks EE 281: Electrical Machines Laboratory EE 380: Electrical Power Systems EE 350: Control Systems EE 370: Electronic Instrumentation EE 371: Instrumentation and Control Lab EE 351: Advanced Control Systems EE 322: Mathematical Methods in EE MH502 Sensors and Actuators EE 205 Network Analysis and Synthesis EE 577 Digital Control
PHD Students
Sr. No. Photo Area of Reasearch Status
1
Moina Ajmeri
Completed (Assistant Professor, Department of EE, NIT Patna)
2
G. Lloyds Raja
Completed (Assistant Professor, Department of EE, NIT Patna)
3
Mohammad Irshad
Completed
4
Saif Ahmad
Completed (Postdoc, LAPLACE, INP-ENSEEIHT, France)
Awards & Honours
  • Received best teacher award for UG teaching in the department of electrical engineering in 2017, 2018
Publications / Journals / Conferences
  • Journal Publications:

    • M. Irshad and A. Ali, IMC based robust PI/PID controllers for time-delayed inverse response processes, ISA Transactions,134, pp. 278-289, 2023
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    • S. Ahmad and A. Ali, On Active Disturbance Rejection Control in Presence of Measurement Noise, IEEE Trans. On Industrial Electronics, 69(11), pp. 11600 – 11610, 2022
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    • S. Ahmad and A. Ali, Unified Disturbance-Estimation-Based Control and Equivalence With IMC and PID: Case Study on a DC–DC Boost Converter, IEEE Trans. On Industrial Electronics, 68 (6), pp. 5122-5132, 2021
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    • G.L. Raja and A. Ali, 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, pp. 266-280, 2021
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    • G.L. Raja and A. Ali, Enhanced Tuning of Smith Predictor Based Series Cascaded Control Structure for Integrating Processes, ISA Transactions, 114, pp. 191-205, 2021
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    • MD Imran Kalim and A. Ali, A graphical approach for controller design with desired stability margins for a DC-DC boost converter, IET Power Electronics, 14(7), pp. 1323-1335, 2021
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    • S. Ahmad and A. Ali, “Active disturbance rejection control of DC-DC boost converter: A review with modifications for improved performance,” IET Power Electronics, vol. 12, no. 8, pp. 2095–2107, 2019.
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    • G.L. Raja and A. Ali, "Smith predictor based parallel cascade control strategy for unstable and integrating processes with large time delay," Journal of Process Control 52 (2017): 57-65.
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    • M. Ajmeri and A. Ali, "Analytical design of modified Smith predictor for unstable second-order processes with time delay," International Journal of Systems Science (2017): 1-11.
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    • G.L. Raja and A. Ali, Modified parallel cascade control strategy for stable, unstable and integrating processes.ISA Transactions, 2016, vol 65, pp. 394-406.
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    • M. Ajmeri and A. Ali, Two degree of freedom control scheme for unstable processes with small time delay, ISA Transactions, 2015, vol 56, pp. 308-326
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    • M. Ajmeri and A. Ali, Simple Tuning Rules for Integrating Processes with Large Time Delay, Asian Journal of Control, 2015, 17 (5), pp. 2033-2040
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    • M. Ajmeri and A. Ali, Direct synthesis based tuning of the parallel control structure for integrating processes, International Journal of Systems Science, 2015, 46 (13), pp 2461-2473
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    • A. Ali and S. Majhi, Integral criteria for optimal tuning of PI/PID controllers for integrating processes, Asian Journal of Control, 13 (2), pp. 328-337, March 2011
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    • A. Ali and S. Majhi,  PID controller tuning for integrating processes, ISA Transactions, 49 (1), pp. 70-78, January 2010
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    • A. Ali and S. Majhi, PI/PID controller design based on IMC and percentage overshoot specification to controller setpoint change, ISA Transactions, 48 (1), pp. 10-15, Jan 2009
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    • A. Ali and S. Majhi, Controller tuning by an adaptive bacterial foraging strategy, Journal of Systems Science and Engineering, 17 (1), pp. 44 -51, 2008

    Conference Publications:

    • MD Imran Kalim and A. Ali, A graphical technique of controller synthesis with desired closed-loop specifications, 29th Mediterranean Conference on Control and Automation (MED), PUGLIA, Italy, Jun 22-25, 2021
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    • M. Irshad and A. Ali, Robust PI-PD controller design for integrating and unstable processes, 6th Conference on Advances in Control and Optimization of Dynamical Systems (ACODS) , Chennai, India, Feb 16 -19, 2020
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    • MD Imran Kalim and A. Ali, New tuning strategy for series cascade control structure, 6th Conference on Advances in Control and Optimization of Dynamical Systems (ACODS), Chennai, India, Feb 16 -19, 2020
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    • G.L. Raja and A. Ali, Design of Cascade Control Structure for Stable Processes using Method of Moments, 2nd International Conference on Power and Embedded Drive Control (ICPEDC), Chennai, India, August 21-23, 2019
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    • M. Irshad and A. Ali, “IMC based optimal PI/PID tuning rules for inverse response plus time delay processes’’, 6th Indian Control Conference (ICC), December 18-20, 2019, IIT Hyderabad, India. (accepted)
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    • S. Ahmad and A. Ali, “Modified Active Disturbance Rejection Control for Improved Performance ’’, 6th Indian Control Conference (ICC) , December 18-20, 2019, IIT Hyderabad, India. (accepted)
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    • M. Irshad and A. Ali, “Optimal Tuning Rules for Integrating Processes for 2-DOF Parallel Control Structure ’’, 6th International Conference on Control, Decision and Information Technologies (CoDIT), April 23-26, 2019, Paris, France.
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    • M. Irshad and A. Ali, “ Optimal tuning rules for PI/PID controllers for inverse response processes”, 3rd IFAC International Conference on Advances in Control and Optimization of Dynamical Systems (ACODS), February 18-22, 2018, Hyderabad, India.
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    • G.L. Raja and A. Ali, “ Modified series cascade control strategy for integrating processes”, In Indian Control Conference (ICC), 252-257, Jan 4-6, 2018, IIT Kanpur, India.
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    • G.L. Raja and A. Ali. “Enhanced Series Cascade Control Strategies for Unstable Processes”, 4th International Conference on Electrical Energy Systems (ICEES), IEEE, Feb 7-9, 2018, SSN College of Engineering Chennai, India.
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    • M. Irshad and A. Ali, “ A Review on PID tuning rules for SOPTD inverse response processes”, International Conference on Intelligent Computing, Instrumentation and Control Technologies (ICICICT), July 6-7, 2017, Kerala, India.
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    • G.L. Raja and A. Ali, Enhanced Delay Compensator Based Parallel Cascade Control Scheme, 6th IEEE International Conference on Control Systems, Computing and Engineering (ICCSCE 2016), 25-27 November, 2016, Penang, Malaysia.
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    • G.L.Raja and A. Ali, Series Cascade Control: An Outline Survey, Indian Control Conference (ICC), 4-7 January, 2017, IIT Guwahati, India.
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    • M.Ajmeri and A. Ali, Modified Smith predictor and controller for unstable first order processes, Indian Control Conference (ICC), 4-7 January, 2017, IIT Guwahati, India.
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    • G. Lloyds Raja and A. Ali, Modified parallel cascade control structure for integrating processes, IEEE international conference on Recent Developments in Control, Automation and Power Engineering (RDCAPE), 12-13 March, 2015, Noida, India
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    • Sai Akhil Reddy Konakalla and A. Ali, Tuning rules for fractional order controllers for integrating and unstable process models, Michael Faraday IET International Summit (MFIIS), 12-13 September, 2015, Kolkata, India
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    • G. Lloyds Raja and A. Ali, Improved Tuning of Cascade Controllers for Stable and Integrating Processes with Time Delay, Michael Faraday IET International Summit (MFIIS), 12-13 September, 2015, Kolkata, India
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    • Moina Ajmeri and Ahmad Ali, A comparative study of PI tuning methods for Integrating Processes, International Conference on Control, Automation, Robotics and Embedded System, Jabalpur, 16-18 December 2013
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    • Moina Ajmeri and Ahmad Ali, PI tuning for integrating first order plus time delay processes , International Conference on Industrial Technology, Capetown, 25-27 February (2013)
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    • A. Ali and S. Majhi, Controller design for unstable FOPTD plants based on sensitivity, 17th IFAC World Congress, 2008, pp. 5837-5841
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    • A. Ali and S. Majhi, A new objective function for controller tuning, 17th IFAC World Congress, 2008, pp. 6120-6124
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    • A. Ali and S. Majhi, PI tuning for integrating processes, National Systems Conference, 2008.
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    • A. Ali and S. Majhi, Design of Optimum PID controller by Bacterial Foraging Strategy, Proc. of IEEE International Conference on Industrial Technology, 15-17 Dec. 2006, pp. 601-605

    Invited talk:

    • Faculty Development Program (FDP) on “Advances in Industrial Automation” during 10th to 14th December, 2018 at NSIT Bihta
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    • Faculty Development Program (FDP) on “Advances in Control and Its Application in Green Energy Technology” during 27th Sept. – 1st Oct. 2019 at Integral University, Lucknow