Wide area controls for transient and dynamic stability enhancement

This paper presents a study done into the effectiveness of using local acceleration measurements vs. remote angle measurements in providing stabilising control via SVCs following large disturbances. The system studied was an analogue of the Queensland-New South Wales Interconnection (QNI) and involved the control of an existing Static Var Compensators (SVC) at Sydney West. This study is placed in the context of wide area controls for large systems using aggregated models for groups of machines.

[1]  Gerard Ledwich,et al.  Switching control for power systems with line losses , 1999 .

[2]  Gerard Ledwich,et al.  Optimal placement of angle transducers in power systems , 1996 .

[3]  David J. Hill,et al.  Cutset stability criterion for power systems using a structure-preserving model , 1986 .

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

[5]  Vijay Vittal,et al.  Robust design of a damping controller for static VAr compensators in power systems , 2001, 2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262).

[6]  Lennart Ljung,et al.  System Identification: Theory for the User , 1987 .

[7]  Gerard Ledwich,et al.  Efficient and robust model predictive control for first swing transient stability of power systems using flexible AC transmission systems devices , 2008 .

[8]  Joe H. Chow,et al.  Performance comparison of three identification methods for the analysis of electromechanical oscillations , 1999 .

[9]  Gerard Ledwich Control algorithms for shunt VAR systems , 1983 .

[10]  M. R. Iravani,et al.  Coordinated Static VAR Compensators and Power System Stabilizers for Damping Power System Oscillations , 1987, IEEE Transactions on Power Systems.

[11]  Gerard Ledwich,et al.  Is Velocity Feedback Always Best for Machine Stability Control , 2002 .

[12]  Gerard Ledwich,et al.  Static reactive-power compensator controls for improved system stability , 1987 .

[13]  Jonathan O'Sullivan,et al.  Identification and validation of dynamic global load model parameters for use in power system frequency simulations , 1996 .