access icon free Energy management and operation modelling of hybrid AC–DC microgrid

Hybrid AC–DC microgrid is introduced as the future distribution network to utilise both benefits of alternative and direct currents. In such hybrid microgrid, AC and DC loads, renewable-based distributed generators (DGs), controllable DGs and energy storage systems are connected through separate AC and DC links. An up–down operation model of such hybrid microgrid is proposed which consists of system- and device-level. In the system-level, a mixed integer linear model is suggested to balance the generation and load considering the interconnection of AC and DC subgrids for minimising total operating cost of the system in a 24-hour period. In the device-level, a controller is suggested for power converter-based resources (i.e. intergrid inverter and battery) for controlling the voltage variations in AC and DC subgrids. The effectiveness of the proposed up–down operation model is demonstrated through simulation studies on a test hybrid microgrid.

Inspec keywords: linear programming; energy management systems; integer programming; distributed power generation

Other keywords: energy operation modelling; mixed integer linear model; hybrid AC–DC microgrid; voltage variations; energy management; power converter-based resources; renewable-based distributed generators; energy storage systems; controllable DG

Subjects: Distributed power generation; Power system management, operation and economics; Optimisation techniques

References

    1. 1)
    2. 2)
    3. 3)
    4. 4)
    5. 5)
    6. 6)
    7. 7)
    8. 8)
    9. 9)
    10. 10)
    11. 11)
    12. 12)
      • 7. Logenthiran, T., Srinivasan, D., Khambadkone, A.M., Aung, H.N.: ‘Multiagent system for real-time operation of a microgrid in real-time digital simulator’, IEEE Trans. Smart Grid, 2012, 3, (2), pp. 925933.
    13. 13)
      • 11. Loh, P.C., Ding, L., Yi Kang, C., Blaabjerg, F.: ‘Autonomous operation of hybrid microgrid with Ac and Dc subgrids’, IEEE Trans. Power Electron., 2013, 28, (5), pp. 22142223.
    14. 14)
      • 13. Manwell, J.F., McGowan, J.G.: ‘Lead acid battery storage model for hybrid energy systems’, Sol. Energy, 1993, 50, (5), pp. 399405.
    15. 15)
      • 8. Radwan, A.A.A., Mohamed, Y.-R.: ‘Assessment and mitigation of interaction dynamics in hybrid Ac/Dc distribution generation systems’, IEEE Trans. Smart Grid, 2012, 3, (3), pp. 13821393.
    16. 16)
      • 2. Holttinen, H., Tuohy, A., Milligan, M., et al: ‘The flexibility workout: managing variable resources and assessing the need for power system modification’, IEEE Power Energy Mag., 2013, 11, (6), pp. 5362.
    17. 17)
      • 5. Justo, J.J., Mwasilu, F., Lee, J., Jung, J.-W.: ‘Ac-microgrids versus Dc-microgrids with distributed energy resources: a review’, Renew. Sustain. Energy Rev., 2013, 24, pp. 387405.
    18. 18)
      • 6. Xiong, L., Peng, W., Pohchiang, L.: ‘A hybrid Ac/Dc microgrid and its coordination control’, IEEE Trans. Smart Grid, 2011, 2, (2), pp. 278286.
    19. 19)
      • 3. Ballatine, A., Pearson, C., Gurunathan, R., Pmsvvsv, P., Doronzo, A.: ‘Dc Micro-Grid’ (Bloom Energy Corporation, Sunnyvale, CA, USA, 2012), 20120267952.
    20. 20)
      • 10. Zhenhua, J., Xunwei, Y.: ‘Hybrid Dc- and Ac-linked microgrids: towards integration of distributed energy resources’. IEEE Energy 2030 Conf., 2008.
    21. 21)
      • 15. Guan, X., Xu, Z., Jia, Q.-S.: ‘Energy-efficient buildings facilitated by microgrid’, IEEE Trans. Smart Grid, 2010, 1, (3), pp. 243252.
    22. 22)
      • 14. Ngan, M.S., Tan, C.W.: ‘Assessment of economic viability for Pv/wind/diesel hybrid energy system in Southern Peninsular Malaysia’, Renew. Sustain. Energy Rev., 2011, 16, (1), pp. 634647.
    23. 23)
      • 4. Wang, B., Sechilariu, M., Locment, F.: ‘Intelligent Dc Microgrid with Smart Grid Communications: Control Strategy Consideration and Design’, 2012.
    24. 24)
      • 12. Saber, A.Y., Venayagamoorthy, G.K.: ‘Resource scheduling under uncertainty in a smart grid with renewables and plug-in vehicles’, IEEE Syst. J., 2012, 6, (1), pp. 103109.
    25. 25)
      • 9. Kurohane, K., Senjyu, T., Uehara, A., Yona, A., Funabashi, T., Kim, C.-H.: ‘A hybrid smart Ac/Dc power system’. Fifth IEEE Conf. on Industrial Electronics and Applications (ICIEA), 2010.
    26. 26)
      • 1. Khodayar, M.E., Barati, M., Shahidehpour, M.: ‘Integration of high reliability distribution system in microgrid operation’, IEEE Trans. Smart Grid, 2012, 3, (4), pp. 19972006.
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