http://iet.metastore.ingenta.com
1887

Using the output energy as performance index in the design of damping controllers for power systems

Using the output energy as performance index in the design of damping controllers for power systems

For access to this article, please select a purchase option:

Buy article PDF
$19.95
(plus tax if applicable)
Buy Knowledge Pack
10 articles for $120.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Name:*
Email:*
Your details
Name:*
Email:*
Department:*
Why are you recommending this title?
Select reason:
 
 
 
 
 
IET Control Theory & Applications — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

The present paper proposes an alternative performance index for the design of robust controllers to damp low-frequency electromechanical oscillations in power systems. The concept of output energy is used as performance index as opposed to the usual criterion of minimum damping ratio. The control problem with both performance indices was structured in the form of linear matrix inequalities and it was verified that the formulation with the output energy is less costly in terms of computational effort when compared to the one with the traditional minimum damping ratio. This characteristic allows the application of the proposed methodology to controller design involving large power system models. The design methodology is based on a multimachine model, without requiring the assumption that some part of the system can be modelled as an infinite bus. Such assumption is usual in control designs based on many modern control techniques, and may modify the dynamics described by the system model and consequently affect the performance of the designed controllers. The design methodology provides controllers that fulfill various practical requirements of the oscillation problem. The methodology has provided effective controllers with acceptable performance as shown in the results, and the gain in computational time was significant.

References

    1. 1)
      • P. Kundur , G.R. Berube , L.M. Hajagos , R. Beaulieu . Practical utility experience with and effective use of power system stabilizers. Proc. IEEE Power Eng. Soc. Gen. Meeting , 1777 - 1785
    2. 2)
    3. 3)
      • R. Yang , B. Bandyopadhyay , A.M. Kulkarni . Design of power system stabilizer for single-machine system using robust periodic output feedback controller. IEE Proc., Gener., Transm. Distrib. , 2 , 211 - 216
    4. 4)
      • Zanchin, V.T., Bazanella, A.S.: `Robust output feedback design with application to power systems', Proc. 42nd IEEE Conf. Decision and Control, 2003, Maui, HI, USA, 4, p. 3870–3875.
    5. 5)
      • Oliveira, R.V., Ramos, R.A., Bretas, N.G.: `Influence of the infinite-bus assumption in the design of damping controllers', Proc. IEEE Power Tech., St. Petersburg, Russia, June 2005, p. 1–7.
    6. 6)
    7. 7)
      • R.A. Ramos , L.F.C. Alberto , N.G. Bretas . A new methodology for the coordinated design of robust decentralized power system damping controllers. IEEE Trans. Power Syst. , 1 , 444 - 454
    8. 8)
    9. 9)
    10. 10)
    11. 11)
      • K.R. Padiyar . (1996) Power system dynamics: stability and control.
    12. 12)
      • P. Kundur . (1994) Power system stability and control.
    13. 13)
      • P. Gahinet , A. Nemirovski , A.J. Laub , M. Chilali . (1995) LMI control toolbox user's guide.
    14. 14)
    15. 15)
    16. 16)
      • S. Boyd , L.E. Ghaoui , E. Feron , V. Balakrishnan . (1994) Linear matrix inequalities in system and control theory.
    17. 17)
      • R.A. Ramos , N.G. Bretas , L.F.C. Alberto . (2002) Damping controller design for power systems with polytopic representation for operating conditions.
    18. 18)
    19. 19)
    20. 20)
      • R. Sadikovic , P. Korba , G. Andersson . (2005) Application of facts devices for damping of power system oscillations.
    21. 21)
      • G. Rogers . (2000) Power system oscillations.
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-cta_20060316
Loading

Related content

content/journals/10.1049/iet-cta_20060316
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
This is a required field
Please enter a valid email address