Publications

A list of selected publications by subject is provided below. For a complete list go here.

Supervisory Control

• Robust Control, Fault Recovery
  • N. Hashemi Attar and S. Hashtrudi-Zad, "Robust nonblocking state-based supervisory control," Proc. 14th Annual IEEE International Systems Conference, SysCon 2020, Montreal, QC, Canada, pp. 1-6, August 2020.
  • F. Yari, S. Hashtrudi-Zad and S. Tafazoli, "Robust supervisory control of a spacecraft propulsion system ," 20th IFAC Symposium on Automatic Control in Aerospace, ACA 2016, Sherbrooke, QC, Canada, pp. 1-6, August 2016.
  • A. Saboori and S. Hashtrudi Zad, "Robust nonblocking supervisory control of discrete-event systems under partial observation ," Systems & Control Letters, vol. 55, no. 10, pp. 839-848, Oct. 2006.
  • A. Saboori and S. Hashtrudi Zad, "Fault recovery in discrete-event systems ," Proc. Computational Intelligence: Methods and Applications, CIMA'05 (ICSC/IEEE), Istanbul, Turkey, six pages, December 2005.
• Implementation
  • K. Searle and S. Hashtrudi-Zad, " Microcontroller based supervisory control of a solar tracker ," Proc. 30st IEEE Canadian Conference on Electrical and Computer Engineering, Windsor, ON, Canada, pp. 453-458, May 2017.
• Computational Procedures
  • F. Yari and S. Hashtrudi-Zad, "Computational procedures for robust nonblocking supervisory control ," Proc. 29st IEEE Canadian Conference on Electrical and Computer Engineering, Vancouver, BC, Canada, pp. 274-278, May 2016.
  • S. Hashtrudi Zad, M. Moosaei and W.M. Wonham, "On computation of supremal controllable, normal sublanguages," Systems & Control Letters, vol. 54, no. 9, pp. 871-876, Sept. 2005.
  • S. Hashtrudi Zad, R.H. Kwong and W.M. Wonham, "Supremum operators and computation of supremal elements in system theory," SIAM Journal on Control and Optimization, vol. 37, no. 3, pp. 695-709, 1999.
• Hierarchical Control
  • M. Zamani Fekri and S. Hashtrudi-Zad, "Hierarchical supervisory control of discrete-event systems under partial observation," Proc. 48th IEEE Conference on Decision and Control, Shanghai, China, pp. 181-186, December 2009.
  • M. Zamani Fekri and S. Hashtrudi-Zad, "Hierarchical robust supervisory control of discrete-event systems," Proc. 2008 American Control Conference, Seattle, Washington, USA, pp. 1178-1183, June 2008.
• Switching Control Systems
  • M.M. Tousi, I. Karuei, S. Hashtrudi-Zad and A.G. Aghdam, "Supervisory control of switching control systems," Systems & Control Letters, vol. 57, no. 2, pp. 105-192, Feb. 2008.

Fault Diagnosis

• Hybrid Models
  • R. Mohammadi, S. Hashtrudi-Zad and K. Khorasani, "Hybrid fault diagnosis: application to a gas turbine engine ," Proc. ASME Turbo Expo 2009, Orlando, Florida, USA, 11 pages, June 2009.
  • R. Mohammadi, S. Hashtrudi-Zad and K. Khorasani, "Diagnosis of hybrid systems: part 1- diagnosability," Proc. 2009 IEEE International Conference on Systems, Man and Cybernetics, San Antonio, Texas, USA, pp. 3334 - 3339 , October 2009.
• Hierarchical Models
  • A. Mohammadi-Idghamishi and S. Hashtrudi-Zad, "Hierarchical fault diagnosis: Application to an ozone plant ," IEEE Transactions on Systems, Man, and Cybernetics: Part C, vol. 37, no. 5, pp. 1040-1047, Sept. 2007.
  • R. Mohammadi and S. Hashtrudi-Zad, "A recursive algorithm for diagnosis in hierarchical finite-state machines," Proc. 2007 IEEE International Conference on Systems, Man and Cybernetics, Montreal, QC, Canada, pp. 1345-1350, October 2007.
  • A. Mohammadi Idghamishi and S. Hashtrudi Zad, "Fault diagnosis in hierarchical discrete-event systems ", Proc. 43th IEEE Conference on Decision and Control, Bahamas, pp. 63-68, December 2004.
• Discrete-Event (Untimed and Timed)
  • S. Hashtrudi Zad, R.H. Kwong and W.M. Wonham, "Fault diagnosis in discrete-event systems: Incorporating timing information," IEEE Transactions on Automatic Control, vol. 50, no. 7, pp. 1010-1015, July 2005.
  • S. Hashtrudi Zad, R.H. Kwong and W.M. Wonham, "Fault diagnosis in discrete-event systems: Framework and model reduction," IEEE Transactions on Automatic Control, vol. 48, no. 7, pp. 1199-1212, July 2003.
• Residual Generators
  • S. Hashtrudi Zad and M.A. Massoumnia, "Generic solvability of the failure detection and identification problem," Automatica, vol. 35, no.5, pp. 887-893, May 1999.

Modeling Biological Systems

• S. Zahirazami, M. Dadar and S. Hashtrudi-Zad, "Sensitivity analysis in Petri net representation of biological systems." Proc. 2013 American Control Conference, Washington, DC, USA, pp. 4576-4581, June 2013.
• S. Zahirazami, S. Hashtrudi-Zad and A.G. Aghdam "Model reduction and consistency in discrete event representation of biological systems," Proc. 2008 American Control Conference, Seattle, Washington, USA, pp. 1703 - 1708, June 2008.