Dr. Ahmad Ali

Dr. Ahmad Ali
Associate Professor
Ph.D, IIT Guwahati
Ph: +91-612-302 8044
Fax: +91-612-227 7383
ali[*AT]iitp.ac.in
Research Areas Active disturbance rejection methods, All Stabilizing Controller Design, Controller Design for Power Electronic Converters
No. of PhD Students
NameThesis titleStatus
Moina Ajmeri New two degree of freedom control schemes for Integrating and unstable processes with time delay. Completed
(Assistant Professor, Department of EE, NIT Patna)
G. Lloyds Raja Enhanced series and parallel cascade control strategies for linear processes with delay Completed
(Assistant Professor, Department of EE, NIT Patna)
Mohammad Irshad Optimal tuning rules for inverse response processes Completed
Saif Ahmad Active disturbance rejection control for power electronic applications Completed (Postdoc, LAPLACE, INP-ENSEEIHT, France)
Courses taught at IITP  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
Student’s Feedback
Course Name Year Course Title Feedback
EE 350 2018 Control System 4.55/5
EE 205 2018 Network Analysis and Synthesis 4.69/5
EE 370 2017 Electronic Instrumentation 4.27/5
EE 370 2016 Electronic Instrumentation 4.72/5
Some of the comments received by the students
  1. Very good teaching
  2. Nice teaching methodology
  3. Best way of teaching and marking
  4. Easy to understand
  5. Very interesting class
  6. Great knowledge base and teaching style
  7. Excellent teacher
  8. Awesome teacher
Awards Received best teacher award for UG teaching in the department of electrical engineering in 2017, 2018
Administrative Responsibilities
  1. Head of the Department
  2. Professor Incharge, Convocation 2017
  3. Professor Incharge, Time table 2016-2017
  4. Faculty Advisor, Mechatronics (M.tech 2017 batch)
Reviewer
  • ISA Transactions, Asian Journal of Control
  • IEEE Trans on Industrial Electronics, IEEE Trans on Power Electronics, Control Engineering Practice, International Journal of Systems Science, Chemical Product and Process Modeling
Publications 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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.
  • 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.
  • 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.
  • 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.
  • 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
  • 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
  • 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
  • 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
  • A. Ali and S. Majhi,  PID controller tuning for integrating processes, ISA Transactions, 49 (1), pp. 70-78, January 2010
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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)
  • 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)
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • G.L.Raja and A. Ali, Series Cascade Control: An Outline Survey, Indian Control Conference (ICC), 4-7 January, 2017, IIT Guwahati, India.
  • 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.
  • 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
  • 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
  • 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
  • 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
  • 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)
  • A. Ali and S. Majhi, Controller design for unstable FOPTD plants based on sensitivity, 17th IFAC World Congress, 2008, pp. 5837-5841
  • A. Ali and S. Majhi, A new objective function for controller tuning, 17th IFAC World Congress, 2008, pp. 6120-6124
  • A. Ali and S. Majhi, PI tuning for integrating processes, National Systems Conference, 2008.
  • 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
  • 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