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Wei Lin

Professor, Department of Electrical, Computer and Systems Engineering
Researches nonlinear control, time-delay systems, adaptive control, stochastic stability/control with applications to renewable energy, power systems and smart grid.
Office: 607 Olin
Phone Number: (216) 368-4493
Fax Number: (216) 368-6888

Education

Sc.D., Systems Science and Mathematics, Washington University in St. Louis, 1993
M.S., Systems Science and Mathematics, Washington University in St. Louis, 1991
M.S., Electrical Engineering, Huazhong University of Science and Technology, 1986
B.S., Electrical Engineering, Dalian University of Science and Technology, 1983

Research Interests

Nonlinear control, dynamics systems with time-delay, homogeneous systems theory, stochastic stability and stochastic control, robust and adaptive control, system parameter estimation and fault detection, applications to under-actuated mechanical systems and robotics, renewable energy, power systems and smart grids.
 
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Editorships

1999-2001 Associate Editor, IEEE Transactions on Automatic Control

2002-2003 Guest Editor, Special Issue on ``New Directions in Nonlinear Control,'' IEEE Trans. Automat. Contr.

2002-2005 Associate Editor, Automatica

2011-Present Associate Editor, Int. J. of Robust and Nonlinear Control

2005-2010 Subject Editor, Int. J. of Robust and Nonlinear Control

2003-2008 Associate Editor, J. of Control Theory and Applications

Invited Plenary Addresses

2016 Plenary Speaker, The 8th Asia-Pacific Power and Energy Engineering Conference (APPEEC'16), Suzhou, China, April 15-17

2011 Plenary Speaker, International Conference on Applied, Computational Mathematics and Optimization, Chiang Mai, Thailand, January 6-10

2009 Plenary Speaker, 2nd International Conference on Intelligent Networks and Systems, Tianjin, China, November 1-3

2009 Semi-Plenary Speaker, 21st Chinese Control and Decision Conference, Guilin, June 17-19

2007 Plenary Speaker, 7th IFAC Symposium on Nonlinear Control Systems (NOLCOS'07), Pretoria, South Africa, August 22-24

2004 Semi-Plenary Speaker, 6th IFAC Symposium on Nonlinear Control Systems (NOLCOS'04), Stuttgart, Germany, September 1-3

2001 Keynote Speaker, 4th Nonlinear Control Network Workshop: Nonlinear and Adaptive Control, Sheffield, U.K., June 25-28

Recent Publications (RP)

[RP54] X. Yu and W. Lin, ``Sampled-Data Feedback Stabilization in Mean Square for Stochastic Homogeneous Systems,''  IEEE Trans. Automat. Contr., accepted and revised in June, 2023, accepted with minor re-revision in Nov. 2023 (Regular Paper).

[RP53] X. Yu and W. Lin, "A Lyapunov-Krasovskii method for semiglobal stabilization of a class of time-delay nonlinear systems with uncontrollable linearization by linear feedback" IEEE Trans. Automat. Contr., Vol. 69, No. 6, pp. xxx-xxx (2024).  Published online Dec. 26, 2023.  DOI:  10.1109/TAC.2023.3347340

[RP52] X. Liu and W. Lin, "Predictor-based observer and controller for nonlinear systems with input/output delays", Syst. Contr. Lett., Vol. 184, Feb. 2024. Article 105723.  https://doi.org/10.1016/j.sysconle.2024.105723

[RP51] X. Niu and W. Lin, ``Global state regulation of time-delay minimum-phase systems by delay-free dynamic compensation,'' Automatica, Vol. 159, January, 2024. Article 111378. https://doi.org/10.1016/j.automatica.2023.111378

[RP50] W. Lin, "When is a nonlinear system semiglobally asymptotically stabilizable by digital feedback?" IEEE Trans. Automat. Contr., Vol. 65, No. 11, pp. 4584-4599 (2020).  Published online Dec. 9, 2019.  DOI:  10.1109/TAC.2019.2958481 

[RP49] Y. J. Wang and W. Lin, "Input delay tolerance of nonlinear systems under smooth feedback: A semiglobal control framework," IEEE. Trans. Automat. Contr., Vol. 67, No. 1, pp. 146-161, 2022. Published online Dec. 23, 2020.  DOI: 10.1109/TAC.2020.3046709

[RP48] X. Yu and W. Lin, "Global input delay tolerance of mimo nonlinear systems under nonsmooth feedback: A homogeneous perspective," IEEE. Trans. Automat. Contr., Vol. 68, No. 7, pp. 3992-4007, 2023. Published online August 9, 2022. DOI: 10.1109/TAC.2022.3197558.

[RP47] X. L. Liu and W. Lin, "A predictor-based linearization approach for local stabilization of nonlinear systems with input delay", IEEE Trans. Automat. Contr., Vol. 68, No. 7, pp. 4297-4304, 2023. Published online August 23, 2022. DOI: 10.1109/TAC.2022.3201007

[RP46]  W. Lin and J. W. Sun, "Using memoryless output feedback to semiglobally stabilize a class of SISO nonlinear systems with input delay", IEEE Trans. Automat. Contr., Vol. 68, No. 3, pp. 1870-1877, 2023. Published online April 19, 2022.  DOI: 10.1109/TAC.2022.3168536.

[RP45] X. Ding, W. Lin, J. Xu, Y.Z. Sun, L. Yao, and B. Mao, ``Coordinated frequency control for isolated power systems with high penetration of DFIG-based wind power'', CSEE Journal of Power and Energy Systems,  Published online May 6, 2022.  DOI: 10.17775/CSEEJPES.2021.08320

[RP44] S. Yang, G. Tao, B. Jiang, Y. Zhang, and W. Lin, ``Modeling and adaptive control of air vehicles with partial nonlinear parametrization," Automatica, Vol. 149, March 2023. Article 110805.  https://doi.org/10.1016/j.automatica.2022.110805

[RP43] J. Sun and W. Lin, "Non-identifier based adaptive regulation of feedforward systems with nonlinear parametrization and delays: A saturation control scheme", Special Issue Dedicated to the 80th Birthday of Professor Arthur J. Krener, Syst. Contr. Lett., Vol. 173, March 2023. Article 105456.  https://doi.org/10.1016/j.sysconle.2023.105456

[RP42] X.Niu and W. Lin, "Low gain control of linear growth feedforward systems by delayed output signals and sparse sampling", Syst. Contr. Lett., Vol. 172, Feb. 2023. Article No. 105430. https://doi.org/10.1016/j.sysconle.2022.105430

[RP41] C.R. Zhao and W. Lin, "Homogeneity, forward completeness, and global stabilization of a family of time-delay nonlinear systems by memoryless non-Lipschitz continuous feedback", IEEE Trans. Automat. Contr., Vol. 67, No. 11, pp. 5916-5931, 2022. Published online Nov. 4, 2021. DOI: 10.1109/TAC.2021.3124992   

[RP40] C. Zhao and W. Lin, ``Homogeneous output feedback design for time-delay nonlinear integrators and beyond: An emulation," Automatica, Vol. 146, Dec. 2022. Article 110641.   https://doi.org/10.1016/j.automatica.2022.110641

[RP39] Y.J. Wang and W. Lin, "A semiglobal approach for stabilizing nonlinear systems with state delays by memoryless linear feedback", IEEE Trans. Automat. Contr., Vol. 67, No. 11, pp. 6119-6126, 2022.  Published online Nov. 15, 2021.  DOI: 10.1109/TAC.2021.3126773

[RP38] C. R. Zhao and W. Lin, ``Memoryless homogeneous control of time-delay nonlinear integrators and beyond," Automatica, Vol. 141, July 2022. Article 110299.   https://doi.org/10.1016/j.automatica.2022.110299

[RP37]  Y. J. Wang and W. Lin, "Stability preservation of nonlinear systems with sampled-delayed input", IEEE Control Systems Letters, Vol. 6, pp. 2761-2766, May 17, 2022.  DOI: 10.1109/LCSYS.2022.3175767

[RP36]  X.R. Niu and W. Lin, "Sampled-data delayed output feedback control of a class of nonlinear systems", IEEE Control Systems Letters, Vol. 6, pp. 2906-2911, June 1, 2022. DOI: 10.1109/LCSYS.2022.3179671

[RP35] X.L. Liu, W. Lin, C.R. Zhao and Y.H. Hu, "Digital control of a family of time-delay feedforward systems with sparse sampling", Syst. Contr. Lett., Vol. 163, May 2022. Article 105200. https://doi.org/10.1016/j.sysconle.2022.105200

[RP34] X.L. Liu, W. Lin, C.R. Zhao and Y.H. Hu, "Sampled-data control of a class of time-delay nonlinear systems via memoryless feedback", Syst. Contr. Lett., Vol. 157, Nov. 2021. Article 105048.  https://doi.org/10.1016/j.sysconle.2021.105048

[RP33] W. Lin, Y.J. Wang and X.L. Liu, ``Asymptotic stabilization of nonlinear systems with long input delay via memoryless feedback: A linearization method," Automatica, Vol. 130, August 2021. Article 109731. https://doi.org/10.1016/j.automatica.2021.109731                               

[RP32]  X. Niu, W. Lin and X.W. Gao, "Static output feedback control of a chain of integrators with input constraints using multiple saturations and delays," Automatica, Vol. 125, March 2021.  Art. no. 109457.   https://doi.org/10.1016/j.automatica.2020.109457

[RP31] W. Lin and J. W. Sun, "New results and examples in semiglobal asymptotic stabilization of nonaffine systems by sampled-data output feedback," Syst. Contr. Lett., Vol. 148, Feb. 2021. Art. no. 104850.  https://doi.org/10.1016/j.sysconle.2020.104850

[RP30] J.W. Sun and W. Lin, "A dynamic gain-based saturation control strategy for feedforward systems with long delays in state and input", IEEE Trans. Automat. Contr., Vol. 66, No. 9, pp. 4357-4364, 2021. Published online Oct. 23, 2020.  DOI: 10.1109/TAC.2020.3030744

[RP29] C. Zhao and W. Lin, "Global stabilization by memoryless feedback for nonlinear systems with a limited input delay and large state delays", IEEE Trans. Automat. Contr., Vol. 66, No. 8, pp. 3702-3709, 2021.  Published online Sept. 1, 2020.  DOI:  10.1109/TAC.2020.3021053

[RP28] W. Lin, X.R. Niu, X.W. Gao and G. Tao, "Adaptive regulation of discrete-time nonaffine systems with parametric uncertainty," IEEE Trans. Automat. Contr., Vol. 66, No. 5, pp. 2365-2371 (2021). DOI: 10.1109/TAC.2020.3006855

[RP27] J.W. Sun, W. Lin, M. G. Hong and K. Loparo, "Voltage regulation of DC-microgrid with PV and battery," IEEE Trans. on Smart Grid,  Vol. 11, No. 6, pp. 4662-4675 (2020).  DOI:  10.1109/TSG.2020.3005415 

[RP26] W. Lin and X. Zhang, "A dynamic feedback framework for control of time-delay nonlinear systems with unstable zero dynamics," IEEE Trans. Automat. Contr., Vol. 65, No. 8, pp. 3317-3332 (2020).  Published online Sept. 11, 2019.  DOI: 10.1109/TAC.2019.2940865

[RP25] Y.J. Wang and W. Lin, "Semiglobal asymptotic stabilization of nonlinear systems with triangular zero dynamics by linear feedback," Automatica, Vol. 115, May 2020. Art. no. 108870.  https://doi.org/10.1016/j.automatica.2020.108870

[RP24] C.R. Zhao and W. Lin, "Memoryless linear feedback control for a class of upper-triangular systems with large delays in the state and input", Syst. Contr. Lett., Vol. 139, May 2020. Art. no. 104679.  https://doi.org/10.1016/j.sysconle.2020.104679

[RP23] S. W. Su and W. Lin, "Global asymptotic tracking for nonminimum‐phase nonlinear systems in output feedback form," Int. J. of Robust and Nonlinear Control, Vol. 30, pp. 4485-4502  (2020).   http://dx.doi.org/10.1002/rnc.4991

[RP22] X. Zhang and W. Lin, "Nonidentifier‐based adaptive control for nonlinearly parameterized systems with measurement uncertainty," Int. J. of Robust and Nonlinear Control, Vol. 30, pp. 3055-3072 (2020).  https://doi.org/10.1002/rnc.4921

[RP21] C. Zhang, W. Lin, D. P. Ke and Y.Z. Sun, "Smoothing tie-line power fluctuations for industrial microgrids by demand side control: An output regulation approach,"  IEEE Trans. on Power Systems,  Vol. 34, No. 5, pp. 3716-3728 (2019).  DOI: 10.1109/TPWRS.2019.2906252  

[RP20]  W. Lin, R. Kanya and P. Radom, "L_gV-type adaptive controllers for uncertain non-affine systems and application to a DC-microgrid with PV and battery," IEEE Trans. Automat. Contr.,  Vol. 64, No. 5, pp. 2182-2189 (2019).  DOI: 10.1109/TAC.2018.2864268 

[RP19] X. Zhang and W. Lin, "A K-filter-based adaptive control for nonlinear systems with unknown parameters in state and output equations," Automatica, Vol. 105, pp. 186-197 (2019).  https://doi.org/10.1016/j.automatica.2019.03.013

[RP18] W. Lin and W. Wei, "Semiglobal asymptotic stabilization of lower triangular systems by digital output feedback," IEEE Trans. Automat. Contr., Vol. 64, No. 5, pp. 2135-2141(2019). Published online 8/8/2018. DOI: 10.1109/TAC.2018.2864259 

[RP17] X. Zhang, W. Lin and Y. Lin, "Iterative changing supply rates, dynamic state feedback, and adaptive stabilization of time-delay systems," IEEE Trans. Automat. Contr., Vol. 64, No. 2, pp. 751-758 (2019). DOI: 10.1109/TAC.2018.2838319  

[RP16] X. Zhang and W. Lin, "Robust output feedback control of polynomial growth nonlinear systems with measurement uncertainty," Int. J. of Robust and Nonlinear Control, Vol. 29, pp. 4562-4576 (2019).  https://doi.org/10.1002/rnc.4638

[RP15] H.Y. Zhao, M.G. Hong, W. Lin and K. A. Loparo, ``Voltage and frequency regulation of microgrid with battery energy storage systems,''  IEEE Trans. on Smart Grid, Vol. 10, No. 1, pp. 414-424 (2019).  DOI: 10.1109/TSG.2017.2741668 

[RP14] Y. Zhang, G. Tao, M. Chen, W. Lin and Z. Q. Zhang, ``Relative degrees and implicit function-based control of discrete-time noncanonical form neural network systems,'' IEEE Trans. on Cybernetics, Vol. 50, No.2, pp. 514-524 (2020). DOI: 10.1109/TCYB.2018.2869335

[RP13] K. Rattanamongkhonkun, R. Pongvuthithum and W. Lin, ``Nonsmooth feedback stabilization of a class of nonlinear systems with unknown control direction and time delay,''  Int. J. of Robust and Nonlinear Control, Vol. 28, pp. 5358-5374 (2018).  https://doi.org/10.1002/rnc.4317

[RP12] X. Zhang, W. Lin and Y. Lin, "Adaptive control of time-delay cascade systems with unknown parameters by partial state feedback," Automatica, Vol. 94, pp. 45-54 (2018). https://doi.org/10.1016/j.automatica.2018.04.007

[RP11] R. Pongvuthithum, K. Rattanamongkhonkun and W. Lin, "Asymptotic regulation of time-delay nonlinear systems with unknown control directions," IEEE Trans. Automat. Contr., Vol. 63, No. 5, pp. 1495-1502 (2018).  DOI: 10.1109/TAC.2017.2748898

[RP10] W. Lin and W. Wei, ``Robust control of a family of uncertain nonminimum‐phase systems via continuous‐time and sampled‐data output feedback,''  Int. J. of Robust and Nonlinear Control, Vol 28, pp. 1440-1455 (2018).   https://doi.org/10.1002/rnc.3963

[RP9] Z. Dai and W. Lin, ``Adaptive estimation of three-phase grid voltage parameters under unbalanced faults and harmonic disturbances,'' IEEE Trans. on Power Electronics, Vol. 32, pp. 5613-5627 (2017). DOI: 10.1109/TPEL.2016.2605131 

[RP8] W. Lin, Z.T. Lu and W. Wei, "Asymptotic tracking control for wind turbines in variable speed mode, " IEEE/CAA Journal of Automatic Sinica, A Special Issue on Control and Optimization in Renewable Energy Systems, Vol. 4, No. 3, pp. 569-576 (2017). DOI: 10.1109/JAS.2017.7510568

[RP7] X. Zhang, W. Lin and Y. Lin, "Dynamic partial state feedback control of cascade systems with time-delay," Automatica, Vol. 77, No. 3, pp. 370-379 (2017).  https://doi.org/10.1016/j.automatica.2016.09.037

[RP6] X. Zhang, W. Lin and Y. Lin, "Nonsmooth feedback control of time-delay nonlinear systems: A dynamic gain based approach," IEEE Trans. Automat. Contr., Vol. 62, No. 1, pp. 438-444 (2017).  DOI: 10.1109/TAC.2016.2562059 

[RP5] Z.J. Liu, W. Lin, Y.L. Geng and P. Yang, "Intent pattern recognition of lower-limb motion based on mechanical sensors, " IEEE/CAA Journal of Automatic Sinica, Vol. 4, No. 4, pp. 651-660 (2017). DOI: 10.1109/JAS.2017.7510619

[RP4] T. Cui, W. Lin, Y.Z. Sun, J. Xu and H. Zhang, "Excitation voltage control for emergency frequency regulation of island power systems with voltage-dependent loads," IEEE Trans. on Power Systems, Vol. 31, No. 2, pp. 1204-1217 (2016). DOI: 10.1109/TPWRS.2015.2415556

[RP3] W. Lin, W. Wei and G.Q. Ye, "Global stabilization of a class of nonminimum-phase nonlinear systems by sampled-data output feedback," IEEE Trans. Automat. Contr., Vol. 61, No. 10, pp. 3076-3082 (2016).  DOI: 10.1109/TAC.2015.2498703

[RP2] W. Lin and J. F. Wei, "Output feedback control of a class of nonminimum‐phase nonlinear systems," Int. J. of Robust and Nonlinear Control, Vol. 26, pp. 3631-3644 (2016). https://doi.org/10.1002/rnc.3522

[RP1] Z.Y. Dai, W. Lin and H. Lin, "Estimation of single-phase grid voltage parameters with zero steady-state error," IEEE Trans. on Power Electronics, Vol. 31, No. 5, pp. 3867-3879 (2016).  DOI: 10.1109/TPEL.2015.2461665 

Selected Papers (SP)

[SP20] W. Lin and H. Lei, "Taking advantage of homogeneity: A unified framework for output feedback control of nonlinear systems," Proc. of the 7th IFAC Nonlinear Control Systems Symposium, Pretoria, South Africa, August 22-24, pp. 27-38, 2007 (Plenary Lecture).  IFAC Proceedings Vol. 40 (12), 1191-1202.   https://doi.org/10.3182/20070822-3-ZA-2920.00197

[SP19] C. Qian and W. Lin, "A continuous feedback approach to global strong stabilization of nonlinear systems," IEEE Trans. Automat. Contr., Vol. 46, No. 7, pp. 1061-1079 (2001). DOI: 10.1109/9.935058

[SP18] C. J. Qian and W. Lin, "Recursive observer design, homogeneous approximation, and nonsmooth output feedback stabilization of nonlinear systems," IEEE Trans. Automat. Contr., Vol. 51, No. 9, pp. 1457-1471 (2006). DOI: 10.1109/TAC.2006.880955

[SP17] B. Yang and W. Lin, "Robust output feedback stabilization of uncertain nonlinear systems with uncontrollable and unobservable linearization," IEEE Trans. Automat. Contr., Vol. 50, No. 5, pp. 619-630 (2005). DOI: 10.1109/TAC.2005.847084

[SP16] B. Yang and W. Lin, "Homogeneous observers, iterative design, and global stabilization of high-order nonlinear systems by smooth output feedback," IEEE Trans. Automat. Contr., Vol. 49, No. 7, pp. 1069-1080 (2004). DOI: 10.1109/TAC.2004.831186

[SP15] C. Qian and W. Lin, "Practical output tracking of nonlinear systems with uncontrollable unstable linearization," IEEE Trans. Automat. Contr., Vol. 47, No.1, pp. 21-36 (2002). DOI: 10.1109/9.981720

[SP14] W. Lin and C. Qian, "Adaptive control of nonlinearly parameterized systems: the smooth feedback case," IEEE Trans. Automat. Contr., Vol. 47, No. 8, pp. 1249-1266 (2002). DOI: 10.1109/TAC.2002.800773

[SP13] W. Lin and C. Qian, "Adaptive control of nonlinearly parameterized systems: a nonsmooth feedback framework," IEEE Trans. Automat. Contr., Vol. 47, No. 5, pp. 757-774 (2002). DOI: 10.1109/TAC.2002.1000270

[SP12] W. Lin and C. Qian, "Adding one power integrator: a tool for global stabilization of high-order lower-triangular systems," Systems and Control Letters, Vol. 39, No. 5, pp. 339-351 (2000). https://doi.org/10.1016/S0167-6911(99)00115-2

[SP11] H. Lei and W. Lin, "Universal adaptive control of nonlinear systems with unknown growth rate by output feedback,"  Automatica, Vol. 42, pp. 1783-1789 (2006).  https://doi.org/10.1016/j.automatica.2006.05.006

[SP10] X. Huang, W. Lin and B. Yang, "Global finite-time stabilization of a class of uncertain nonlinear systems," Automatica, Vol. 41, pp. 881-888 (2005). https://doi.org/10.1016/j.automatica.2004.11.036

[SP9] C. Qian and W. Lin, "Output feedback control of a class of nonlinear systems: a nonseparation principle paradigm," IEEE Trans. Automat. Contr., Vol. 47, No. 10, pp. 1710-1715 (2002). DOI: 10.1109/TAC.2002.803542

[SP8] W. Lin and R. Pongvuthithum, "Adaptive output tracking of inherently nonlinear systems with nonlinear parameterization," IEEE Trans. Automat. Contr., Vol. 48, pp. 1737-1749 (2003). DOI: 10.1109/TAC.2003.817922

[SP7] W. Lin and T. Shen, "Robust passivity and feedback design for minimum-phase nonlinear systems with structureal uncertainty," Automatica, Vol. 35, No. 1, pp. 35-47 (1999). https://doi.org/10.1016/S0005-1098(98)00120-4

[SP6] A. Isidori and W. Lin, ``Global L2-gain design for a class of nonlinear systems," Systems and Control Letters, Vol. 34, No.5, pp. 295-302 (1998).  https://doi.org/10.1016/S0167-6911(98)00010-3

[SP5] W. Lin, "Global asymptotic stabilization of general nonlinear systems with stable free dynamics via passivity and bounded feedback," Automatica, Vol. 32, pp. 915-924 (1996). https://doi.org/10.1016/0005-1098(96)00013-1

[SP4] W. Lin and C. I. Byrnes, "H-infinity control of discrete-time nonlinear systems," IEEE Trans. Automat. Contr., Vol. 41, pp. 494-510 (1996). DOI: 10.1109/9.489271

[SP3] W. Lin, "Feedback stabilization of general nonlinear control systems: a passive system approach," Systems and Control Letters, Vol. 25, pp. 41-52 (1995).  https://doi.org/10.1016/0167-6911(94)00056-2

[SP2] W. Lin and C. I. Byrnes, "Discrete-time nonlinear H∞ control with measurement feedback," Automatica, Vol. 31, pp. 419-434 (1995).  https://doi.org/10.1016/0005-1098(94)00116-Z

[SP1] C. I. Byrnes and W. Lin, "Losslessness, feedback equivalence, and the global stabilization of discrete-time nonlinear systems," IEEE Trans. Automat. Contr.,Vol. 39, pp. 83-98 (1994). DOI: 10.1109/9.273341