access icon free Controlled network splitting considering transient stability constraints

© The Institution of Engineering and Technology
Received 14/04/2018, Accepted 18/09/2018, Revised 07/08/2018, Published 27/09/2018

Intentional islanding has been extensively studied recently as the last resort to prevent blackouts, mostly from the perspective of thermal static constraints satisfaction. However, as most previous studies on this topic do not address stability issues, their controlled islanding plans might fail to ensure the stability of resulted islands, thereby delaying their acceptance and adoption by utilities. This study makes progress towards addressing stability issues, proposing a controlled islanding model that ensures and improves the transient stability of the islanded system. Linear transient stability constraints are derived off-line, based on the extended equal area criterion, to ensure the first swing transient stability of the synchronous machines, just after the controlled line switching. The islanding model with transient stability constraints is first developed as a mixed-integer nonlinear program (MINLP). Furthermore, the MINLP model is linearised, resulting in a computationally lighter mixed-integer linear program. The objective function of the islanding model is to minimise the generation imbalance of islands and to increase the transient stability margin of the resulting islands, and the obtained optimisation results are validated by the fully fledged dynamic simulation. The efficacy of the proposed method is validated by simulation on the IEEE 118-bus system.

Inspec keywords: nonlinear programming; distributed power generation; power system transient stability; integer programming; linear programming

Other keywords: mixed-integer linear program; linear transient stability constraints; resulting islands; intentional islanding; thermal static constraints satisfaction; controlled islanding plans; swing transient stability; stability issues; controlled line switching; controlled islanding model; transient stability margin; islanded system; resulted islands; controlled network splitting

Subjects: Power system control; Optimisation techniques; Optimisation techniques

References

    1. 1)
      • 16. Ding, L., Gonzalez-Longatt, F.M., Wall, P., et al: ‘Two-step spectral clustering controlled islanding algorithm’, IEEE Trans. Power Syst., 2013, 28, (1), pp. 75–84.
    2. 2)
      • 6. Panteli, M., Mancarella, P.: ‘The grid: stronger, bigger, smarter?: presenting a conceptual framework of power system resilience’, IEEE Power Energy Mag., 2015, 13, (3), pp. 58–66.
    3. 3)
      • 5. Trodden, P.A., Bukhsh, W.A., Grothey, A., et al: ‘MILP formulation for controlled islanding of power networks’, Int. J. Electr. Power Energy Syst., 2013, 45, (1), pp. 501–508.
    4. 4)
      • 19. Esmaeilian, A., Kezunovic, M.: ‘Prevention of power grid blackouts using intentional islanding scheme’, IEEE Trans. Ind. Appl., 2017, 53, (1), pp. 622–629.
    5. 5)
      • 3. Aghamohammadi, M.R., Shahmohammadi, A.: ‘Intentional islanding using a new algorithm based on ant search mechanism’, Int. J. Electr. Power Energy Syst., 2012, 35, (1), pp. 138–147.
    6. 6)
      • 1. Senroy, N., Heydt, G. T.: ‘A conceptual framework for the controlled islanding of interconnected power systems’, IEEE Trans. Power Syst., 2006, 21, (2), pp. 1005–1006.
    7. 7)
      • 9. Xu, G., Vittal, V.: ‘Slow coherency based cutset determination algorithm for large power systems’, IEEE Trans. Power Syst., 2010, 25, (2), pp. 877–884.
    8. 8)
      • 10. Yang, B., Vittal, V., Heydt, G.T.: ‘Slow-coherency-based controlled islanding;a demonstration of the approach on the August 14, 2003 blackout scenario’, IEEE Trans. Power Syst., 2006, 21, (4), pp. 1840–1847.
    9. 9)
      • 25. Chiang, H.-D.: ‘Direct methods for stability analysis of electric power systems: theoretical foundation, BCU methodologies, and applications’ (Wiley, New York, NY, USA, 2011).
    10. 10)
      • 7. You, H., Vittal, V., Wang, X.: ‘Slow coherency-based islanding’, IEEE Trans. Power Syst., 2004, 19, (1), pp. 483–491.
    11. 11)
      • 15. Amraee, T., Saberi, H.: ‘Controlled islanding using transmission switching and load shedding for enhancing power grid resilience’, Int. J. Electr. Power Energy Syst., 2017, 91, (1), pp. 135–143.
    12. 12)
      • 20. Haque, M.H.: ‘Equal-area criterion: an extension for multimachine power systems’, IEE Proc. – Gener., Trans. Distrib., 1994, 141, (3), pp. 191–197.
    13. 13)
      • 12. Mehrjerdi, H., Lefebvre, S., Saad, M., et al: ‘A decentralized control of partitioned power networks for voltage regulation and prevention against disturbance propagation’, IEEE Trans. Power Syst., 2013, 28, (2), pp. 1461–1469.
    14. 14)
      • 8. Vittal, V., Kliemann, W., Ni, Y.X., et al: ‘Determination of generator groupings for an islanding scheme in the Manitoba hydro system using the method of normal forms’, 1998, 13, (4), pp. 1345–1351.
    15. 15)
      • 23. Pizano-Martianez, A., Fuerte-Esquivel, C.R., Ruiz-Vega, D.: ‘Global transient stability-constrained optimal power flow using an OMIB reference trajectory’, IEEE Trans. Power Syst., 2010, 25, (1), pp. 392–403.
    16. 16)
      • 13. Jabari, F., Seyedi, H., Ravadanegh, S.N.: ‘Large-scale power system controlled islanding based on backward elimination method and primary maximum expansion areas considering static voltage stability’, Int. J. Electr. Power Energy Syst., 2015, 67, (1), pp. 368–380.
    17. 17)
      • 2. Xu, G., Vittal, V., Meklin, A., et al: ‘Controlled islanding demonstrations on the WECC system’, IEEE Trans. Power Syst., 2011, 26, (1), pp. 334–343.
    18. 18)
      • 11. Kyriacou, A., Demetriou, P., Panayiotou, C., et al: ‘Controlled islanding solution for large-scale power systems’, IEEE Trans. Power Syst., 2018, 33, (2), pp. 1591–1602.
    19. 19)
      • 18. Fernández-Porras, P., Panteli, M., Quirós-Tortós, J.: ‘Intentional controlled islanding: when to island for power system blackout prevention’, IET Gener. Transm. Distrib., 2018, 12, (14), pp. 3542–3549, doi: 10.1049/iet-gtd.2017.1526.
    20. 20)
      • 21. Xu, Y., Dong, Z.Y., Xu, Z., et al: ‘Power system transient stability-constrained optimal power flow: a comprehensive review’. 2012 IEEE Power and Energy Society General Meeting, San Diego, CA, 2012, pp. 1–7.
    21. 21)
      • 14. Trodden, P.A., Bukhsh, W.A., Grothey, A., et al: ‘Optimization-based islanding of power networks using piecewise linear AC power flow’, IEEE Trans. Power Syst., 2014, 29, (3), pp. 1212–1220.
    22. 22)
      • 22. Ruiz-Vega, D., Pavella, M.: ‘A comprehensive approach to transient stability control. I. Near optimal preventive control’, IEEE Trans. Power Syst., 2003, 18, (4), pp. 1446–1453.
    23. 23)
      • 17. Kamali, S., Amraee, T., Bathaee, S.M.T.: ‘Prediction of unplanned islanding using an energy based strategy’, IET Gener. Transm. Distrib., 2016, 10, (1), pp. 183–191.
    24. 24)
      • 24. Zarate-Minano, R., Van Cutsem, T., Milano, F., et al: ‘Securing transient stability using time-domain simulations within an optimal power flow’, IEEE Trans. Power Syst., 2010, 25, (1), pp. 243–253.
    25. 25)
      • 4. ‘Report on blackout in Turkey on 31 march 2015’. Available at https://docstore.entsoe.eu/Documents/SOC%20documents/Regional_Groups_Continental_Europe/20150921_Black_Out_Report_v10_w.pdf, accessed October 2018.
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-gtd.2018.5287
Loading

Related content

content/journals/10.1049/iet-gtd.2018.5287
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading