access icon free Robust optimisation applied to the reconfiguration of distribution systems with reliability constraints

This study presents a mixed-integer second-order conic programming (MISOCP) model for the robust reconfiguration of electrical distribution systems, considering the minimisation of active power losses and reliability constraints. The uncertainty at the reliability data is considered by using a linear and adjustable robust approach. The indices used to evaluate the reliability of the system are the system average interruption frequency index (SAIFI) and the system average interruption duration index (SAIDI), both of which are calculated as functions of the switch status (open or closed). Under radiality constraints, the solution generated by the proposed model is robust in terms of the reliability, i.e. the SADI and SAIFI limits imposed by regulators are not violated even if the uncertain data changes stochastically. The use of an MISOCP model guarantees convergence to optimality by using existing convex optimisation solvers. To evaluate the robustness of each solution generated by the proposed model, a set of Monte Carlo simulations were deployed. Finally, all tests were executed in a 136-node real distribution system.

Inspec keywords: Monte Carlo methods; integer programming; convex programming; power distribution reliability

Other keywords: robust optimisation; reliability constraints; system average interruption frequency index; active power losses; system average interruption duration index; electrical distribution systems; 136-node real distribution system; reliability assessment; adjustable robust approach; robust analysis; mixed-integer second-order conic programming model; Monte Carlo simulations; distribution systems reconfiguration; SADI; convex optimisation; MISOCP model; SAIFI

Subjects: Monte Carlo methods; Reliability; Distribution networks; Optimisation techniques

References

    1. 1)
    2. 2)
      • 32. Procedimentos de Distribuição de Energia Elétrica no Sistema Elétrico Nacional – PRODIST. Módulo 8 – Qualidade da Energia Elétrica, Agência Nacional de Energia Elétrica, Braslia, DF, 2012.
    3. 3)
      • 22. CPLEX Optimization Subroutine Library Guide and Reference, ILOG Inc., Incline Village, NV, CPLEX division edn., 2008.
    4. 4)
    5. 5)
      • 3. Billinton, R., Allan, R.N.: ‘Reliability evaluation of power systems’ (Springer, New York, 1996, 2nd edn.), ISBN 978-0306452598.
    6. 6)
    7. 7)
    8. 8)
      • 14. Esmaeilian, H.R., Fadaeinedjad, R., Attari, S.M.: ‘Distribution network reconfiguration to reduce losses and enhance reliability using binary gravitational search algorithm’. Proc. of the 22nd Int. Conf. and Exhibition on Electricity Distribution, Stockholm, 2013, pp. 14.
    9. 9)
      • 4. Merlin, A., Back, H.: ‘Search for a minimal-loss operation spanning tree configuration in an urban power distribution system’. Proc. V Power Systems Computer Conf., Cambridge, UK, 1975, pp. 118.
    10. 10)
      • 5. Tang, L., Yang, F., Ma, J.: ‘A survey on distribution system feeder reconfiguration: Objectives and solutions’. Proc. Innovative 2014 Smart Grid Technologies – Asia, Kuala Lumpur, 2014, pp. 6267.
    11. 11)
    12. 12)
    13. 13)
    14. 14)
    15. 15)
    16. 16)
      • 2. IEEE Std. 1366-2012: ‘IEEE Guide for Electrical Power Distribution Reliability Indices’, 2004.
    17. 17)
    18. 18)
    19. 19)
    20. 20)
      • 31. 136 Buses, 156 Branches Medium City Real Distribution System for Network Reconfiguration, URL http://www.feis.unesp.br/#!/departamentos/engenharia-eletrica/pesquisas-eprojetos/lapsee/downloads/, 2015.
    21. 21)
    22. 22)
    23. 23)
      • 30. Bazaraa, M.S., Jarvis, J.J., Sherali, H.D.: ‘Linear programming and network flows’ (John Wiley & Sons, New York, 2009, 4th edn.), ISBN 978-0470462720.
    24. 24)
    25. 25)
      • 21. Fourer, R., Gay, D.M., Kernighan, B.W.: ‘AMPL: a modeling language for mathematical programming’ (Brooks/Cole-Thomson Learning, Pacific Grove, CA, 2003, 2nd edn.), ISBN 978-0534388096.
    26. 26)
    27. 27)
    28. 28)
    29. 29)
    30. 30)
    31. 31)
      • 1. IEEE Std. 493-2007: ‘IEEE Recommended Practice for the Designing of Reliable Industrial and Commercial Power Systems’, 2013.
    32. 32)
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