Past and Current Research

My research interests span broad areas of control theory and dynamic systems. I am an interdisciplinary system researcher with academic and industrial training in both electrical and mechanical engineering disciplines. My research includes mathematical analysis as well as experimental methods. I am primarily interested in working on existing and emerging problems related to sustainable energy systems [4-8]. Also, I am enthusiastic about electric machine theory and servo-system design and improvement [2,3,7,10,11]. My recent work includes design and implementation of high-precision contouring of servo-systems [3], and theoretical development of modular control design over networks [1, 2]. My future research plans are directed toward achieving accessible economic renewable energy and distributed manufacturing.

  1. Control and Optimization
  2. Energy Systems
  3. Mechatronics and Manufacturing Systems

References

  1. A. Ghaffari and A. G. Ulsoy, “Swapping modularity for distributed precision contouring; analysis and experiments,” ASME Journal of Dynamic Systems, Measurement, and Control, Submitted.
  2. A. Ghaffari and A. G. Ulsoy, “LMI-based design of distributed controllers to achieve component swapping modularity,” IEEE Transactions on Control Systems Technology, Submitted.
  3. A. Ghaffari and A. G. Ulsoy, “Dynamic contour error estimation and feedback modification for high-precision contouring,” IEEE/ASME Transactions on Mechatronics, DOI 10.1109/TMECH.2015.2494518.
  4. A. Ghaffari, S. Moura, and M. Krstić, “Modeling, control, and stability analysis of heterogeneous thermostatically controlled load populations using partial differential equations,” ASME Journal of Dynamic Systems, Measurement, and Control, vol. 137, pp. 101009(1-9), 2015.
  5. A. Ghaffari, S. Seshagiri, and M. Krstić, “Multivariable maximum power point tracking for photovoltaic micro-converters using extremum seeking,” Control Engineering Practice, vol. 35, pp. 83-91, 2015.
  6. A. Ghaffari, M. Krstić, and S. Seshagiri, “Power optimization for photovoltaic micro-converters using multivariable Newton-based extremum seeking,” IEEE Transactions on Control Systems Technology, vol. 22, pp. 2141-2149, 2014.
  7. A. Ghaffari, M. Krstić, and S. Seshagiri, “Power optimization and control in wind energy conversion systems using extremum seeking,” IEEE Transactions on Control Systems Technology, vol. 22, pp. 1684-1695, 2014.
  8. A. Ghaffari, M. Krstić, and S. Seshagiri, “Extremum seeking for wind and solar energy applications,” Mechanical Engineering, vol. 136, no. 3, pp. S13-S21, March 2014.
  9. A. Ghaffari, M. Krstić, and D. Nešić, “Multivariable Newton-based extremum seeking,” Automatica, vol. 48, pp. 1759-1767, 2012.
  10. A. Ghaffari and M. J. Yazdanpanah, “Computing optimized nonlinear sliding surfaces,” in Proc. of Chinese Control and Decision Conference, 2008.
  11. M. J. Yazdanpanah and A. Ghafari, “Modification of sliding mode controller by using a neural network with application to a flexible-link,” in Proc. of European Control Conference, 2003.
Last updated on 6 Oct 2016