DOI QR코드

DOI QR Code

Design Procedure of Robust LQG/LTR Controller of TCSC for Damping Power System Oscillations

전력시스템 동요 억제를 위한 TCSC의 강인한 LQG/LTR 제어기 설계절차에 관한 연구

  • Son, Kwang-Myoung (Dept.of Electric Engineering, Dongeui University) ;
  • Lee, Tae-Gee (Dept.of Electric Engineering, Dongeui University) ;
  • Jeon, In-Su (Dept.of Electric Engineering, Dongeui University)
  • 손광명 (동의대학교 전기공학부) ;
  • 이태기 (동의대학교 전기공학부) ;
  • 전인수 (동의대학교 전기공학부)
  • Published : 2002.11.01

Abstract

This paper deals with the design of a robust LQC/LTR (Linear Quadratic Gaussian with Loop Transfer Recovery) controller of the TCSC for the power system oscillation damping enhancement. Designing LQG/LTR controller involves several design parameter adjustment processes for performance improvement. this paper proposes a systematic design parameter adjustment procedure which is suitable for robust multi-monde stabilization. The designed controller is verified by nonlinear power system simulation, which shows that the controller is effective for damping power system oscillations.

본 논문에서는 전력동요 억제를 위한 TCSC의 강인한 LQG/LTR (Linear Quadratic Gaussian with Loop Transfer Recovery) 제어기 설계에 관한 연구를 하였다. LQG/LTR 제어기를 설계할 때 성능을 극대화하기 위해서는 여러 단계의 파라미터 조정을 하여야 한다. 이에 본 논문에서는 다 변수 LQG/LTR 안정화 제어기 선계를 체계적으로 할 수 있는 방법을 제안하였다. 설계된 제어기를 실제의 비선형 전력시스템에 적용함으로써 전력동요억제 효과를 검증하였다.

Keywords

References

  1. R.H. Webster, A.P. Mane, O.J.M. Smith, “Series Capacitor Switching to Quench Electromechanical Transients in Power Systems”, IEEE Transactions on Power Apparatus and Systems, Vol.PAS-90, No.2, March/April, 1971. pp.427-433. https://doi.org/10.1109/TPAS.1971.293021
  2. L.Angquist, B.Lundin and J.Samuelsson, “Power Oscillation Damping Using Controlled Reactive Power Compensation - A Comparison Between Series and Shunt Approaches”, IEEE Transactions on Power Systems, Vol.8, No.2, May 1993, pp.687-700. https://doi.org/10.1109/59.260811
  3. M. Noroozian and G. Andersson, Damping of Power System Oscillations By Use of Controllable Components, IEEE Transactions on Power Delivery, Vol.9, No.4, October 1994, pp.2046-2054. https://doi.org/10.1109/61.329537
  4. Kwang M. Son, Jong-Keun Park, “Design of an LQG controller of TCSC via time scale separation of the power system”, The Transactions of the Korean Institute of Electrical Engineers, Vol.47, No.7, July 1998, pp.880-885.(in Korean)
  5. F. Fatehi, J.R. Smith and D.A. Pierre, “Robust Power System Controller Design Based On Measured Models”, IEEE Transactions on Power Systems, Vol.11, No.2, May 1996, pp.774-780. https://doi.org/10.1109/59.496153
  6. B.D.O. Anderson, J.B. Moore, Optimal Control - Linear Quadratic Methods, Prentice-Hall, 1989, pp.241-246.
  7. M. Athans, Lecture Notes on Multivariable Control System, Vol I and II, MIT, 1986.
  8. H. Kwakernaak and R. Sivan, Linear Optimal Control Systems, John Wiley & Sons, 1972.
  9. P.M. Anderson, A.A. Foud, Power System Control and Stability, IEEE Press, 1994.
  10. J.J. Paserba, N.W. Miller, E.V. Larsen and R.J. Piwko, “A Thyristor Controlled Series Compensation Model for Power System Stability Analysis”, IEEE Transactions on Power Delivery, Vol. 10, No.3, July, 1995, pp.1471-1478. https://doi.org/10.1109/61.400931
  11. X.R. Chen, N.C. Pahalawaththa, U.D. Annakkage and C.S. Kumble, “Controlled Series Compensation for Improving the Stability of Multi-machine Power Systems”, IEE Proceedings - Gener. Transm. Distrib., Vol. 142, No.4, July 1995, pp. 361-366. https://doi.org/10.1049/ip-gtd:19951818