Stabilizing Nonlinear Control Using Damper Currents Sliding Mode Observer of Synchronous Generator

In this article, a new observer-based nonlinear controller for excitation control of synchronous generator is presented. First, a nonlinear sliding mode observer for the synchronous machine damper currents is developed. Second, the existence of a control law for the complete seventh order model of a generator, which takes into account the stator dynamics as well as the damper effects, is proved by using the theory of Lyapunov. The stabilizing feedback law for the power system is shown to be Globally Exponentially Stable (GES) in the context of Lyapunov theory. Simulation results, for a single-Machine-Infinite-Bus (SMIB) power system, are given to demonstrate the effectiveness of the proposed combined obsever-controller for the transient stabilization and voltage regulation.

[1]  Marija D. Ilic,et al.  Feedback linearizing excitation control on a full-scale power system model , 1994 .

[2]  Youyi Wang,et al.  A new nonlinear voltage controller for power systems , 1997 .

[3]  P. Kundur,et al.  Power system stability and control , 1994 .

[4]  Vadim I. Utkin,et al.  Sliding mode control design principles and applications to electric drives , 1993, IEEE Trans. Ind. Electron..

[5]  Youyi Wang,et al.  Robust decentralized nonlinear controller design for multimachine power systems , 1997, Autom..

[6]  F. M. Hughes,et al.  A generator transfer function regulator for improved excitation control , 1998 .

[7]  D. Mayne.  Nonlinear and Adaptive Control Design [Book Review] , 1996, IEEE Transactions on Automatic Control.

[8]  Om P. Malik,et al.  Artificial neural network power system stabilizers in multi-machine power system environment , 1995 .

[9]  Shengwei Mei,et al.  Adaptive nonlinear excitation control with L2 disturbance attenuation for power systems , 2003, Autom..

[10]  Shigeru Okuma,et al.  A position-and-velocity sensorless control for brushless DC motors using an adaptive sliding mode observer , 1992, IEEE Trans. Ind. Electron..

[11]  Ouassima Akhrif,et al.  Application of a multivariable feedback linearization scheme for rotor angle stability and voltage regulation of power systems , 1999 .

[12]  Ronald R. Mohler,et al.  Nonlinear control methods for power systems: a comparison , 1995, IEEE Trans. Control. Syst. Technol..

[13]  Adel A. Ghandakly,et al.  A parametrically optimized self-tuning regulator for power system stabilizers , 1992 .

[14]  Colin D. Simpson,et al.  Industrial Electronics , 1936, Nature.

[15]  Sandeep Jain,et al.  Adaptive nonlinear excitation control of power systems with unknown interconnections , 1994, IEEE Trans. Control. Syst. Technol..

[16]  Jin Jiang,et al.  Robust controller design for generator excitation systems , 1995 .

[17]  H. H. Happ,et al.  Power System Control and Stability , 1979, IEEE Transactions on Systems, Man, and Cybernetics.

[18]  F. P. de Mello.  Measurement of synchronous machine rotor angle from analysis of zero sequence harmonic components of machine terminal voltage , 1994 .

[19]  Lin Chen,et al.  A nonlinear control design for power systems , 1992, Autom..

[20]  K. Busawon,et al.  Nonlinear control for small synchronous generator , 2001 .