Publications

Mani V. Venkatasubramanian
Professor

School of Electrical Engineering and Computer Science
Washington State University, Pullman, WA 99164-2752

Phone : (509)-335-6452
Fax : (509)-335-3818
Email : mani@eecs.wsu.edu

Journal Publications:

Y. Li and V. Venkatasubramanian, Coordination of transmission path transfers, IEEE Transactions on Power Systems, to appear.
F. Howell and V. Venkatasubramanian, A modal decomposition of the Hopf normal form coefficient, IEEE Transactions on Automatic Control, July 2001, Vol. 46, No. 7, pp. 1080 - 1083.
H. Liu, A. Bose and V. Venkatasubramanian, Voltage stability contingency screening based on adaptive bounding method, IEEE Transactions on Power Systems, Vol. 15, No. 3, August 2000, pp. 1137 - 1141.
M. Shen, V. Venkatasubramanian, N. Abi-Samra, and D. Sobajic, A new framework for estimation of generator dynamic parameters, IEEE Transactions on Power Systems, Vol. 15, No.2, May 2000, pp. 756-763.
V. Venkatasubramanian and W. Ji, Coexistence of four different attractors in a fundamental power system model, IEEE Transactions on Circuits and Systems, Part I, March 1999, Vol.46, No.3, pp. 405 - 409.
F. Howell and V. Venkatasubramanian, Transient stability assessment using unstable limit cycles, IEEE Transactions on Power Systems, May 1999, Vol. 14, No. 2, pp. 667 - 677.
R. Mantri, A. Saberi and V. Venkatasubramanian, Stability analysis of continuous time planar systems with state saturation nonlinearity, IEEE Transactions on Circuits and Systems, Part I, October 1998, pp. 989 - 993.
V. Venkatasubramanian and W. Ji, Computation of (n-1)-dimensional stable manifolds in large systems such as the power system, Automatica, September 1997, Vol.33, No.10, pp.1877-1883.
K. Kim, H. Schattler, J. Zaborszky, V. Venkatasubramanian, and P. Hirsch, Methods for calculating oscillations in large scale power systems, IEEE Transactions on Power Systems, November 1997, Vol.12, No.4, pp.1639-1648.
W. Ji and V. Venkatasubramanian, Hard-limit induced chaos in a fundamental power system model, International Journal of Electrical Power and Energy Systems, Vol. 18, No.5, September 1996, pp. 279--295.
V. Venkatasubramanian, A. Saberi and Z. Lin, On the existence of solutions and equilibrium points in a nonlinear network, IEEE Transactions on Circuits and Systems, Part-I, March 1996, Vol. 43, No. 3, pp. 233--235.
W. Ji and V. Venkatasubramanian, Dynamics of a minimal power system: Invariant tori and quasi-periodic motions, (typo corrections), IEEE Transactions on Circuits and Systems, Part I, Vol. 42, No.12, Dec., 1995. pp. 981--1000.
V. Venkatasubramanian, H. Schattler and J. Zaborszky, A taxonomy of the dynamics of large differential-algebraic systems, Proceedings of the IEEE, November 1995, Vol. 83, No. 11, pp. 1530--1561.
V. Venkatasubramanian, H. Schattler and J. Zaborszky, Fast time-varying phasor analysis in the balanced large electric power system, IEEE Transactions on Automatic Control, November 1995, Vol. 40, No. 11, pp. 1975--1982.
V. Venkatasubramanian, H. Schattler and J. Zaborszky, Feasibility regions and bifurcation boundaries in constrained systems such as the power system, IEEE Transactions on Automatic Control, December 1995, Vol. 40, No. 12, pp. 1992--2013.
V. Venkatasubramanian, Tools for dynamic analysis of the general large power system using time-varying phasors, International Journal on Electric Power and Energy Systems, December 1994, pp. 365--376.
L. Perez, A. Flechsig and V. Venkatasubramanian, Modeling the protective system for power system dynamic analysis, IEEE Transactions on Power Systems, November 1994, pp. 1963--1973.
V. Venkatasubramanian, Singularity induced bifurcation and the van der Pol oscillator, IEEE Transactions on Circuits and Systems, Part-I, November 1994, pp. 765--769.
V. Venkatasubramanian, H. Schattler and J. Zaborszky, Voltage Dynamics: Study of a Generator with Voltage Control, Transmission and Matched MW load, IEEE Transactions on Automatic Control, November 1992, pp. 1717--1733.

Manuscripts Under Review:

M. Shen and V. Venkatasubramanian, Algorithms for on-line generator dynamic parameter estimation, accepted subject to revision, IEEE Trans. Power Systems.
M. Shen, V. Venkatasubramanian, W.A. Mittelstadt, and R.Goddard, Load parameter estimation in Pacific Northwest, accepted subject to revision, IEEE Trans. Power Systems.
H. Liu, A. Bose and V. Venkatasubramanian, Adaptive bounding method for voltage security analysis, accepted subject to revision, IEEE Trans. Power Systems.
Y.Chen and V. Venkatasubramanian, Transient excitation boosting using remote signals, accepted subject to revision, IEEE Trans. Power Systems.
Y.Chen and V. Venkatasubramanian, Automatic on-line controller for coordinated slow voltage control, accepted subject to revision, IEEE Trans. Power Systems.
J. Li and V. Venkatasubramanian, Study of unstable limit cycles in power system models, accepted subject to revision, IEEE Trans. Power Systems.

Book chapters:

V. Venkatasubramanian, H. Schattler and J. Zaborszky, On the dynamics of differential-algebraic systems such as the balanced large electric power system, Systems and Control Theory for Power Systems, IMA Volumes in Mathematics and its Applications, Vol. 64, Springer-Verlag, edited by J. H. Chow, P. V. Kokotovic, and R. J. Thomas, 1994, pp. 381 - 398, book-chapter.
V. Venkatasubramanian, H. Schattler and J. Zaborszky, Stability Regions for Differential Algebraic Systems, Systems, Models and Feedback: Theory and Applications, Edited by A. Isidori and T.J.Tarn, Birkhauser Boston Inc., 1992, pp. 385 - 402, book chapter.

Technical Reports:

D. Kosterev, S. Yirga, and V. Venkatasubramanian, Validation report of the August 10, 1996 WSCC disturbance, Operating Capability Study Group, Western Systems Coordinating Council, March 1997.
R. Aggarwal, R. Daschmans, R. Schellberg, V. Venkatasubramanian, and S. Yirga, Validation studies of the July 2, 1996 WSCC system disturbance event, Operating Capability Study Group, Western Systems Coordinating Council, July 1997.
V. Venkatasubramanian, W. Ji, F. Howell, and K. S. Shah, Application of taxonomy theory, Volume II: Nonlinear analysis of power system oscillations, EPRI TR-105492-V2, Project 3573-10, Final report, May 1996.
J. Zaborszky, H. Schattler, K. Kim, V. Venkatasubramanian, W. Ji, N. Dehkordi, and K. S. Shah, Application of taxonomy theory, Volume I: Computation of Hopf bifurcation related segment of the feasibility boundary, EPRI TR-105492-V1, Project 3573-10, Final report, October 1995.

Student Dissertations:

Yuan Li, Coordination of transmission path transfers in large electric power systems, Ph.D. Dissertation, December 2003.
Rajesh Kavasseri, New methodology for design of power system stabilizers, Ph.D. Dissertation, August 2002.
Juan Li, Nonlinear analysis of limit cycles in power system models, Ph.D. Dissertation, August 2001.
Yonghong Chen, Development of automatic slow voltage control for large power systems, Ph.D. Dissertation, August 2001.
Meng Shen, A new framework for parameter estimation of power system dynamic models, Ph.D. Dissertation, December 2000.
Karl Schneider, Application of power swing damping control on an SVC to improve transient stability of WSCC interconnected power system, M.S. Thesis, May 1999.
Weijun Ji, Analysis of complicated oscillatory instability phenomena in general power system models, Ph.D. Dissertation, May 1997.
Frederic Howell, Nonlinear analysis of power system oscillations, M.S. Thesis, December 1995.
Ravi Mantri, (jointly supervised with Prof. Ali Saberi), Control and analysis problems for linear systems with saturation, M.S. Thesis, May 1995.
Nasser Dehkordi, Analysis of Hopf bifurcations and voltage oscillations in power system models, M.S. Thesis, August 1994.

Conference Proceedings:

G. Zhao and V. Venkatasubramanian, Fast tuning procedures for emergency controls using eigenvalue computations, Proc. International Conference on Electric Supply Industry in Transition: Prospects and Issues for Asia, January 2004, Bangkok, Thailand.
V.Venkatasubramanian and R. Kavasseri, Direct computation of generator internal dynamic states from terminal measurements, Proc. Hawaii International Conference on System Sciences, January 2004.
V.Venkatasubramanian, Stable operation of a simple power system with no equilibrium points, Proc. IEEE Conference on Decision and Control, December 2001, pp. 2201 - 2203.
V. Venkatasubramanian, Stability boundary analysis of nonlinear dynamics subject to state limits, Proceedings of the 34th Annual Hawaii International Conference on System Sciences, January 2001, pp. 762 - 767.
V. Venkatasubramanian and M. Shen, Decentralized estimation of power system dynamic models, Proc. IEEE Conference on Decision and Control, December 2000, pp. 2035 - 2039.
J. Li and V. Venkatasubramanian, Study of Hopf bifurcations in a simple power system model, Proc. IEEE Conference on Decision and Control, December 2000, pp. 3075 - 3079.
C.W. Taylor, V. Venkatasubramanian and Y. Chen, Wide-area stability and voltage control, Proc. VII Symposium on Specialists in Electric Operational and Expansion Planning, VII SEPOPE, Curitiba, Brazil, 2000.
J. Li and V. Venkatasubramanian, Study of unstable limit cycles in power system models, Proc. IEEE Power Engineering Society Summer Meeting, 2000, pp. 842 - 847.
V. Venkatasubramanian and C. W. Taylor, Improving Pacific Inter-tie stability using Slatt thyristor controlled series compensation, Proc. IEEE Power Engineering Society Winter Meeting, 2000.
H. Liu, A. Bose and V. Venkatasubramanian, A fast voltage security assessment method using adaptive bounding, Proc. IEEE Power Industry Computer Applications, 1999, pp. 325 - 330.
V.Venkatasubramanian, K.W.Schneider, C.W.Taylor, Improving pacific inter-tie stability using existing static var compensators and thyristor controlled series compensation, Proc. Bulk Power systems dynamics and control IV: restructuring, Santorini, Greece, August 1998, pp. 647 - 651.
V. Venkatasubramanian, X. Jiang, H. Schattler and J. Zaborszky, On the dynamics of large nonlinear systems with saturation on states and signals, Proc. IEEE Conference on Decision and Control, December 1996.
W. Ji, F. Howell, and V. Venkatasubramanian, Detection of complicated nonlinear phenomena in large power system models, Proc. Power Systems Computation Conference, Vol. I, Dresden, August 1996, pp. 430--439.
X. Jiang, V. Venkatasubramanian, H. Schattler, and J. Zaborszky, Dynamics of large power system constrained by hard-limits, Proc. Power Systems Computation Conference, Vol.1, Dresden, August 1996.
V. Venkatasubramanian and W. Ji, Numerical approximation of (n-1)-dimensional stable manifolds in large systems such as the power system, Proc. 13th World Congress of International Federation of Automatic Control, Volume 10: Power Plants and Systems, Computer Control, June 1996, pp. 253 - 258.
R. Mantri, A. Saberi and V. Venkatasubramanian, Stability analysis of continuous time planar systems with state saturation nonlinearity, Proc. IEEE International Symposium on Circuits and Systems, May 1996, pp. III-60 - III-63.
V. Venkatasubramanian and W. Ji, Chaotic motions from intermittency mechanisms in a simple power system, Proc. IEEE International Symposium on Circuits and Systems, May 1996, pp. 641 - 644.
W. Ji and V. Venkatasubramanian, Hard-limit induced chaos in a single-machine-infinite-bus power system, Proc. IEEE Conference on Decision and Control, December 1995, pp. 3465 - 3470.
V. Venkatasubramanian, X. Jiang, H. Schattler and J. Zaborszky, Current status of the taxonomy theory of power system dynamics: constrained systems with hard-limits, Proc. NSF International Workshop on Bulk Power Voltage Phenomena, Davos, Switzerland, August 1994, pp. 15 - 103.
W. Ji and V. Venkatasubramanian, Center manifold computations in bifurcation analysis of large systems such as the power system, Proc. IEEE American Control Conference, Seattle, WA, June 1995, pp. 1573 - 1579.
X. Jiang, V. Venkatasubramanian, H. Schattler, and J. Zaborszky, Hard-limit induced stability phenomena in the power system, Proc. IEEE Conference on Control Applications, June 1995, New York.
W. Ji and V. Venkatasubramanian, Dynamics of a minimal power system model: invariant tori and quasi-periodic motions, Proc. IEEE International Symposium on Circuits and Systems, May 1995, pp. 1131 - 1135.
X. Jiang, H. Schattler, J. Zaborszky and V. Venkatasubramanian, Hard-limit induced oscillations, Proc. IEEE International Symposium on Circuits and Systems, May 1995, pp. 146 - 149.
V. Venkatasubramanian, R. Mantri and A. Saberi, On the existence/uniqueness of solutions for nonsmooth systems, Proc. IEEE American Control Conference, June 1995.
R. Mantri, V. Venkatasubramanian and A. Saberi, An investigation of simple nonsmooth power system models, Proc. IEEE Conference on Decision and Control, Florida, December 1994.
V. Venkatasubramanian, H. Schattler and J. Zaborszky, Time-delay differential-algebraic phasor formulation of the large power system dynamics, Proc. IEEE International Symposium on Circuits and Systems, June 1994.
V. Venkatasubramanian, A. Saberi and Z. Lin, A notion of solutions and equilibrium points for nonsmooth systems, Proc. IEEE Conference on Decision and Control, December 1993, pp. 1 - 7.
V. Venkatasubramanian, H. Schattler and J. Zaborszky, Analysis of local bifurcation mechanisms in large differential-algebraic systems such as the power system, Proc. IEEE Conference on Decision and Control, December 1993, pp. 3727 - 3733.
J. Zaborszky, H. Schattler and V. Venkatasubramanian, Limitations of the Quasi stationary Dynamics and Error due to Phasor Computations in Network Equations, Proc. Power Systems Computations Conference, France, 1993, pp. 721 - 729.
V. Venkatasubramanian, H. Schattler and J. Zaborszky, Varied Origins of Voltage Collapse for the Large Electric Power System, Proc. IFAC World Congress, 1993.
V. Venkatasubramanian, H. Schattler and J. Zaborszky, Homoclinic Orbits and the Persistence of the Saddle connection bifurcation for the Large Electric Power System, Proc. IEEE International Symposium on Circuits and Systems, May 1993, Chicago, pp.2648 - 2651.
V. Venkatasubramanian, H. Schattler and J. Zaborszky, Analysis of the Tap Changer Related Voltage Collapse Phenomena for the Large Electric Power System, Proc. IEEE Conference on Decision and Control, Tucson, Arizona, December 1992, pp. 2920 - 2927.
V. Venkatasubramanian, On a Singular Transformation for analyzing the Global Dynamics of a Class of Singular DAEs, Proc.Symposium on Implicit and Nonlinear Systems, December 1992, pp. 364 - 371.
V. Venkatasubramanian, H. Schattler and J. Zaborszky, A New approach for Voltage Security Monitoring of a Large Electric Power System, Proc. IEEE American Control Conference, June 1992.
V. Venkatasubramanian, H. Schattler and J. Zaborszky, A Taxonomy of the Dynamics of a large Electric Power System with Emphasis on its Voltage Stability, Proc. NSF International Workshop on Bulk Power Voltage Phenomena, Maryland, August, 1991, pp. 9 - 52.
V. Venkatasubramanian, H. Schattler and J. Zaborszky, Global Voltage Dynamics: Study of a Generator with Voltage Control, Transmission and Matched MW load, Proc. IEEE Conference on Decision and Control, Honolulu, Hawaii, December 1990, pp. 3045 - 3056.
V. Venkatasubramanian, H. Schattler and J. Zaborszky, A Stability Theory of Differential Algebraic Systems such as the Power System, Proc. IEEE International Symposium on Circuits and Systems, San Diego, May 1992, pp. 2517 - 2520.