Wide-area robust H/sub 2//H/sub /spl infin// control with pole placement for damping inter-area oscillations

A wide-area robust control method for damping inter-area oscillations of power system is suggested in this paper. Both local and PMU-provided remote signals are utilized as feedback inputs of the controller. First the damping control design is formulated as an output disturbance rejection problem. Then a mixed H2/Hinfin , output-feedback control design with pole placement based on the mixed-sensitivity formulation is carried out. The feedback gain matrix is obtained through solving a family of linear matrix inequalities (LMIs). Experiments on a 4-generator benchmark system model demonstrate the effectiveness of the designed controller and robustness with respect to variations of the system operating conditions. The results are also compared with the conventional PSS damping control

[1]  He Chen,et al.  LMI-based Wide-area Robust Damping Control , 2005, 2005 IEEE/PES Transmission & Distribution Conference & Exposition: Asia and Pacific.

[2]  Balarko Chaudhuri,et al.  Mixed-sensitivity approach to H/sub /spl infin// control of power system oscillations employing multiple FACTS devices , 2003 .

[3]  Lamine Mili,et al.  Inter-area oscillation damping with power system stabilizers and synchronized phasor measurements , 1998, POWERCON '98. 1998 International Conference on Power System Technology. Proceedings (Cat. No.98EX151).

[4]  Malihe M. Farsangi,et al.  Multi-objective design of damping controllers of FACTS devices via mixed H2/H∞ with regional pole placement , 2003 .

[5]  Pascal Gahinet,et al.  H/sub /spl infin// design with pole placement constraints: an LMI approach , 1994, Proceedings of 1994 33rd IEEE Conference on Decision and Control.

[6]  B. Chaudhuri,et al.  Robust damping of multiple swing modes employing global stabilizing signals with a TCSC , 2004, IEEE Transactions on Power Systems.

[7]  E. Larsen,et al.  Applying Power System Stabilizers Part I: General Concepts , 1981, IEEE Transactions on Power Apparatus and Systems.

[8]  G. J. Rogers,et al.  A fundamental study of inter-area oscillations in power systems , 1991 .

[9]  F.F. Wu,et al.  China's future in electric energy , 2005, IEEE Power and Energy Magazine.

[10]  A.G. Phadke,et al.  Synchronized phasor measurements in power systems , 1993, IEEE Computer Applications in Power.

[11]  Necati Özdemir,et al.  State-space solutions to standard H? control problem , 2002 .

[12]  Göran Andersson,et al.  Damping Controller Design for Power System Oscillations , 2006, Intell. Autom. Soft Comput..

[13]  Imad M. Jaimoukha,et al.  Mixed-sensitivity approach to H/sub /spl infin// control of power system oscillations employing multiple FACTS devices , 2003, 2003 IEEE Power Engineering Society General Meeting (IEEE Cat. No.03CH37491).

[14]  C. Scherer,et al.  Multiobjective output-feedback control via LMI optimization , 1997, IEEE Trans. Autom. Control..

[15]  B. J. Cory,et al.  Linear matrix inequality versus Root-locus approach for damping inter-area oscillations in power systems , 2001 .

[16]  Innocent Kamwa,et al.  Wide-area measurement based stabilizing control of large power systems-a decentralized/hierarchical approach , 2001 .

[17]  P. Gahinet,et al.  H∞ design with pole placement constraints: an LMI approach , 1996, IEEE Trans. Autom. Control..