Dr. Zhendong Sun

Senior Research Fellow

Hamilton Institute, NUI Maynooth, Co. Kildare, Ireland
Tel: +353 1 708 6462          Fax: +353 1 708 6269

Email: Zhendong.Sun@nuim.ie

Personal Information:

      Birth Place: Shandong, China    Birth Date: May 31, 1968   

      Marital Status: Married               Citizenship: Chinese

 

Research Areas:

 

·        control and design for hybrid/switched systems

·        nonlinear control theory with application to mechanical systems

·        sampled-data systems and multi-rate control

 

Teaching Experience:

 

·        linear systems

·        stability theory

·        nonlinear control systems

 

Academic Qualifications:

 

·        BSc (1990) Chinese Ocean University, Applied Mathematics

·        MSc (1993) Xiamen University, Cybernetics & Operational Research

·        PhD (1996) Beijing Univ. of Aero. & Astro., Control Theory & Applications

 

Career History:

 

·        Post-doc Research Fellow (June 1996—May 1998) Tsinghua University

·        Associate Professor (June 1998—Oct. 2002) Beijing Univ. of Aero. & Astro.

·        Research Fellow (Feb. 2000—April 2001) National University of Singapore

·        Research Fellow (Jan. 2002—Sep. 2002) University of New South Wales

·        Senior Research Fellow (Nov. 2002—present) National University of Ireland, Maynooth

 

Awards and Honors:

 

·        Guan Zhaozhi Award, Chinese Control Conference, 2000, Hong Kong

·         Nomination of Outstanding Reviewer, Automatica, 2003

·         Associate Editor, IEEE CSS Conference Board, 2004-present

·        Member, International Program Committee, Asia-Pacific Conference on Control and Measurement, 2002, 2004

·        Member, International Program Committee, 2nd IFAC Conference on the Analysis and Design of Hybrid Systems, Alghero, Italy, June 2006


 

Biographic Sketch

 

I was born at a small village in Shandong Province, central eastern part of China, on May 31, 1968. In Sept. 1986 I entered into the Department of Applied Mathematics, Ocean University of Qingdao (currently entitled Chinese Ocean University), where I got my first degree (BS) in July 1990. At college I mainly interested in algebraic theory and stochastic analysis while my bachelor thesis was on algebraic analysis of a regression equation with rank deficiency properties. The main results were organized into two papers, both published on the Universities Journal of Computational Mathematics. From Sept. 1990 to July 1993, I was a graduate student of the Department of System Science, Xiamen University. Supervised by Prof. Jianju Wang (retired), my master thesis focused on the properties of optimal processes of differential inclusions and their applications to certain economic systems. After receiving my MS degree, I registered to the Seventh Research Division, Beijing University of Aeronautics and Astronautics (BUAA), as a PhD candidate with my tutors Prof. Weibing Gao, late Fellow of Chinese Academy of Science, and Prof. Xiaohua Xia. My PhD thesis, entitled "On nonregular feedback design of nonlinear control systems" which finished in May 1996, mainly addressed the feedback linearization problem and the decoupling (Morgan' s) problem, both by means of nonregular state feedback control laws.

 

During June 1996 to June 1998, I was a Postdoctoral Research Associate in the Department of Automation, Tsinghua University where I started to investigate into hybrid systems collaborating with Prof. Dazhong Zheng. In June 1998, I joined the Faculty of Science, Beijing University of Aeronautics and Astronautics, as an Associate Professor and taught graduate courses including linear system theory and design, stability theory, and nonlinear control systems. From Feb. 2000 to April 2001, I had been with the Department of Electrical Engineering, the National University of Singapore (NUS) as a Research Fellow. During that period, I was an eager learner inspired by my sponsored collaborator, Prof. Shuzhi S. Ge, and was benefited in writing papers and in research philosophies, among many others. The following 2002, I moved to the School of Electrical Engineering and Telecommunications, the University of New South Wales (UNSW) as a Research Fellow where I worked with Dr. David J. Clements and Prof. Andrey V. Savkin and my main research concern was on stabilizing switching/input design for switched linear control systems.  Since Nov. 2002, I have been with the Hamilton Institute, National University of Ireland Maynooth (NUIM), as a Senior Research Fellow. As a senior member of the switched systems group led by Prof. Robert N. Shorten, my current research work is devoting to the establishment of fundamental properties of switched linear systems which are potentially towards a comprehensive switched system theory that extends the standard linear system theory on one hand and applies to more practical situations on the other. Besides, I am also interested in applying the theoretical framework to issues of networked control systems, for example, the internet congestion control problem that quite a few my colleagues are currently working on.

 

I was the recipient of the Guan Zhao-Zhi Award at the Chinese Control Conference (Hong Kong, China) in 2000. Since 2004, I have been serving as an Associate Editor on the Conference Editorial Board of the IEEE Control Systems Society. Besides, I served as an IPC member for a couple of international conferences. During the last years I have been serving as reviewers for the major international academic journals and conferences in the control community, and I was nominated as an Outstanding Reviewer for the journal Automatica in 2003.

 

Apart from work, I spend much time on sports like swimming, jogging, table tennis and badminton. I am the organizer of a badminton gang mainly composed of Chinese guys and we play regularly at the sports centre, NUI Maynooth. I am also a founding trustee and active number of the Associate of Chinese Professionals in Ireland (ACPI).


 

List of Selected Publications

(Soft copies are available upon request by send email to Zhendong.sun@nuim.ie)

 

Monograph

 

Z. Sun and S.S. Ge, Switched Linear Systems: Control and Design. Springer-Verlag, London, 2005.  Communications and Control Engineering series. ISBN: 1-85233-893-8

 

Survey Paper

 

Z. Sun and S.S. Ge, Analysis and synthesis of switched linear control systems,Automatica, vol. 41, no. 2, pp. 181-195, 2005.  

   

Technical Contributions

 

Analysis and Design of Hybrid Dynamical Systems

 

  1. Z. Sun, Combined switching strategies for switched linear systems,IEEE Transactions on Automatic Control, accepted, 2005.
  2. Z. Sun, Stabilizability and insensitivity of switched linear systems, IEEE Transactions on Automatic Control, vol. 49, no. 7, pp. 1133-1137, 2004.
  3. Z. Sun, A robust stabilizing law for switched linear systems,International Journal of Control, vol. 77, no. 4, pp. 389-398, 2004.
  4. Z. Sun, Sampling and control of switched linear systems, Journal of the Franklin Institute, vol. 341, no. 7, pp. 657-674, 2004.
  5. Z. Sun and S. S. Ge, Dynamic output feedback stabilization of a class of switched linear systems,IEEE Transactions on Circuits and Systems I-Fundamental Theory and Applications, vol. 50, no. 8, pp. 1111-1115, 2003.
  6. Z. Sun, S. S. Ge, and T. H. Lee, Controllability and reachability criteria for switched linear systems,Automatica, vol. 38, no. 5, pp. 775-786, 2002.
  7. Z. Sun and D. Zheng, On controllability and stabilization of switched linear systems,IEEE Transactions on Automatic Control, vol. 46, no.2, pp. 291-295, 2001.
  8. S. S. Ge, Z. Sun, and T. H. Lee, Reachability and controllability of switched linear discrete-time systems,IEEE Transactions on Automatic Control, vol. 46, no.9, pp. 1437-1441, 2001.                                                                                                        
  9. Z. Sun, Reachability of switched linear systems with switching/input constraints, IFAC World Congress 2005, accepted.
  10. Z. Sun and R. Shorten, On convergence rates of switched linear systems, Proceedings of the 42nd IEEE CDC, December 8-12, 2003, Maui.
  11. Z. Sun and S. S. Ge,  Sampling and control of switched linear systems, Proceedings of the 41st IEEE CDC, Dec. 10-13, 2002, Las Vegas.
  12. Z. Sun, Canonical forms of switched linear control systems, Proceedings of American Control Conference, June 29-July 2, 2004, Boston.
  13. Z. Sun, Controllability and reachability of switched linear systems: a geometric approach, 15th Triennial World Congress of the IFAC, July 2126, 2002, Barcelona.
  14. S. S. Ge, Z. Sun, and T. H. Lee, Reachability and controllability of switched linear discrete-time systems, Proceedings of American Control Conference, June 25-27, 2001, Arlington.

 

Nonregular Feedback Design & Applications

 

1.   Z. Sun and S. S. Ge, “Nonregular feedback linearization: a nonsmooth approach,” IEEE Transactions on Automatic Control, vol. 48, no. 10, pp. 1772-1776, 2003.

2.   Z. Sun, S. S. Ge, and T. H. Lee, “Stabilization of underactuated mechanical systems: a nonregular backstepping approach,” International Journal of Control, vol. 74, no.11, pp. 1045-1051, 2001.

3.   S. S. Ge, Z. Sun, and T. H. Lee, “Nonlinear feedback linearization for a class of second-order systems with application to flexible joint   robots,” Automatica, vol. 37, no. 11, pp. 1819-1824, 2001.

4.   S. S. Ge, Z. Sun, T. H. Lee, and M. Spong, “Feedback linearization and stabilization of second-order nonholonomic chained systems,” International Journal of Control, vol. 74, no. 14, pp. 1383-1392, 2001. 

5.   Sun, S. S. Ge, W. Huo, and T. H. Lee, “Stabilization of nonholonomic chained systems via nonregular feedback,” Systems & Control Letters, vol. 44, no. 4, pp. 279-289, 2001.

6.   Z. Sun and X. Xia, “On nonregular feedback linearization,” Automatica, vol. 33, no.7, pp. 1339-1344, 1997.

7.   S. S. Ge, Z. Sun, and T. H. Lee, “Criterion for nonregular feedback linearization with application,” 15th Triennial World Congress of the IFAC, July 21–26, 2002, Barcelona.

8.   Z. Sun, S. S. Ge, and T. H. Lee, “Nonregular backstepping design of underactuated mechanical systems,” Proceedings of IEEE Conference on Control Applications (CCA), September 5-7, 2001, Mexico City.

9.   S. S. Ge, Z. Sun, T. H. Lee, and M. W. Spong, “Feedback linearization and discontinuous control of second-order nonholonomic chained systems,” Proceedings of IEEE Conference on Control Applications, September 5-7, 2001, Mexico City.

10.  Z. Sun, S. S. Ge, W. Huo, and T. H. Lee, “Stabilization of nonholonomic chained systems via nonregular feedback linearization,” Proceedings of 39th IEEE CDC, December 12-15, 2000, Sydney.

 

 

Decoupling Problem

 

  1. Z. Sun, Disturbance decoupling for periodic and multirate systems,Control Theory and Applications, vol. 18, no. 3, 2001.
  2. Z. Sun, Some remarks on nonlinear Morgans problem,Chinese J. of Automation, vol.10, no.3, 1998.
  3. Z. Sun and X. Xia, A theorem on dynamic feedback linearization in R4,Control Theory and Applications, vol. 13, no.4, 1996.
  4. Z. Sun, X. Xia, and W. Gao, Multifeedback (A,B)-invariant subspaces and multirate sampled decoupling,Chinese J. of Automation, vol. 7, no.3, 1995.

 

Papers under Review

 

  1. Z. Sun and R. Shorten, On convergence rates of switched linear systems, submitted to IEEE Trans. Automat. Contr., provisional accepted, July 2004.
  2. Z. Sun, Stabilization and optimal switching of switched linear systems, submitted to Automatica, provisional rejected, May 2004.
  3. Z. Sun and S. S. Ge, Feedback equivalence and canonical forms of switched linear systems, preprint, Dec. 2003.
  4. Z. Sun, Stability and robustness of linear hybrid systems: an aggregation approach, submitted to IEEE Trans. Automat. Contr., April 2005.