A new method for power system transient instability detection

Reliability and computational simplicity are of primary importance in developing on-line instability detection methods. With regard to these requirements, this paper has proposed a new method for instability detection based on generator angles, angular velocities, and their rates of change. According to the developed method, system instability or out-of-step condition is detected by identifying the characteristics-concave or convex-of a surface on which the post-fault system trajectory lies. The variation mode and probabilistic property of the proposed index are investigated by using the 10 machine 39 bus IEEE test system.

[1]  James S. Thorp,et al.  Some applications of phasor measurements to adaptive protection , 1988 .

[2]  Miles A Redfern,et al.  A new pole slipping protection algorithm for dispersed storage and generation using the equal area criterion , 1995 .

[3]  Kazuya Omata,et al.  A predictive out-of-step protection system based on observation of the phase difference between substations , 1990 .

[4]  Adly A. Girgis,et al.  On-line detection of power system small disturbance voltage instability , 1996 .

[5]  James S. Thorp,et al.  Decision trees for real-time transient stability prediction , 1994 .

[6]  William Roemish,et al.  A New Synchronous Generator Out-of Step Relay Scheme Part I Abbreviated Version , 1985, IEEE Transactions on Power Apparatus and Systems.

[7]  Felix F. Wu,et al.  Stability regions of nonlinear autonomous dynamical systems , 1988 .

[8]  Kwok W. Cheung,et al.  BC Hydro's on-line transient stability assessment (TSA) model development, analysis and post-processing , 1995 .

[9]  T. Matsushima,et al.  System separation equipment to minimize power system instability using generator's angular-velocity measurements , 1993 .

[10]  Masahiro Sato,et al.  Stabilizing control, system preventing loss of synchronism from extension and its actual operating experience , 1995 .

[11]  Jin Lu,et al.  Predicting future behavior of transient events rapidly enough to evaluate remedial control options in real-time , 1995 .

[12]  J. M. Haner,et al.  Experience with the R-RDOT out-of-Step Relay , 1986, IEEE Transactions on Power Delivery.

[13]  W. L. Peterson,et al.  Adaptive estimation of power system frequency deviation and its rate of change for calculating sudden power system overloads , 1990 .

[14]  A.-A. Edris,et al.  Enhancement of first-swing stability using a high-speed phase shifter , 1991 .