Your browser does not support JavaScript!
http://iet.metastore.ingenta.com
1887

access icon free Real-time implementation of three-phase single-stage SPV grid-tied system using TL-VSC

© The Institution of Engineering and Technology
Received 18/10/2016, Accepted 30/07/2017, Revised 24/05/2017, Published 31/07/2017

This work deals with real-time implementation of a three-phase single-stage solar photovoltaic (SPV) grid-tied system using a three-level voltage source converter (TL-VSC) working at lower switching frequency of 900 Hz under varying solar intensity levels for large power applications. The proposed system consists of SPV array, TL-VSC, interfacing inductors, and three-phase AC grid. The decoupled current controller with the capacitor voltage balancing control and an incremental conductance maximum power point tracking (IC-MPPT)-based algorithms are used to control the TL-VSC to track and transfer maximum active power to AC grid at unity power factor from SPV array. Owing to low switching frequency and single-stage topology, the efficacy of the system is increased. The performance of SPV grid integrated system using TL-VSC is validated under varying solar intensity levels in the laboratory at different switching frequencies and interfacing inductors in accordance to IEEE 519 standard.

Inspec keywords: electric current control; voltage-source convertors; power grids; maximum power point trackers; voltage control

Other keywords: TL-VSC; incremental conductance maximum power point tracking; three-phase AC grid; IC-MPPT; three-phase grid-tied system; interfacing inductors; three-level voltage source converter; SPV array; decoupled current controller; single-stage topology; capacitor voltage balancing control; single-stage grid-tied system; frequency 900 Hz; IEEE 519 standard; SPV grid-tied system; solar photovoltaic grid-tied system; real-time implementation; unity power factor; solar intensity levels

Subjects: Voltage control; Control of electric power systems; Power electronics, supply and supervisory circuits; DC-DC power convertors; Current control

References

    1. 1)
      • 15. Choi, U.M., Blaabjerg, F., Lee, K.B.: ‘Control strategy of two capacitor voltages for separate MPPTs in photovoltaic systems using neutral-point-clamped inverters’, IEEE Trans. Ind. Appl., 2015, 51, (4), pp. 3295–3303.
    2. 2)
      • 7. Lal, V.N., Singh, S.N.: ‘Modified particle swarm optimisation-based maximum power point tracking controller for single-stage utility-scale photovoltaic system with reactive power injection capability’, IET Renew. Power Gener., 2016, 10, (7), pp. 899–907.
    3. 3)
      • 17. Alexander, A., Thathan, M.: ‘Modelling and analysis of modular multilevel converter for solar photovoltaic applications to improve power quality’, IET Renew. Power Gener., 2015, 9, (1), pp. 78–88.
    4. 4)
      • 16. Kartick, J.C., Sujit, B.K., Suparna, K.: ‘Dual reference phase shifted pulse width modulation technique for a N-level inverter based grid connected solar photovoltaic system’, IET Renew. Power Gener., 2016, 10, (7), pp. 928–935.
    5. 5)
      • 9. Singh, B., Hussain, I.: ‘Grid integration of single stage solar PV power generating system using 12-pulse VSC’. Proc. 6th IEEE India Int. Conf. Power Electronics (IICPE), 8–10 December 2014, pp. 1–6.
    6. 6)
      • 21. Wu, B.: ‘High-power converters and AC drives’ (John Wiley & Sons, Inc., 2006).
    7. 7)
      • 19. Ogasawara, S., Akagi, H.: ‘Analysis of variation of neutral point potential in neutral-point-clamped voltage source PWM inverters’. Industry Applications Society Annual Meeting, 1993., Conf. Record of the 1993 IEEE, Toronto, Ontario, 1993, vol2, pp. 965–970.
    8. 8)
      • 1. Kouro, S., Leon, J.I., Vinnikov, D., et al: ‘Grid-connected photovoltaic systems: an overview of recent research and emerging PV converter technology’, IEEE Ind. Electron. Mag., 2015, 9, (1), pp. 47–61.
    9. 9)
      • 24. Singh, B., Chandra, A., Al-Haddad, K.: ‘Power quality: problems and mitigation techniques’ (John Wiley & Sons Ltd, UK, 2015).
    10. 10)
      • 11. Zhang, C., Du, S., Chen, Q.: ‘A novel scheme suitable for high-voltage and large-capacity photovoltaic power stations’, IEEE Trans. Ind. Electron., 2013, 60, (9), pp. 3775–3783.
    11. 11)
      • 22. Teodorescu, R., Liserre, M., Rodríguez, P.: ‘Grid converters for photovoltaic and wind power systems’ (John Wiley & Sons, 2011).
    12. 12)
      • 18. Pan, Z., Peng, F.Z.: ‘A sinusoidal PWM method with voltage balancing capability for diode-clamped five-level converters’, IEEE Trans. Ind. Appl., 2009, 45, (3), pp. 1028–1034.
    13. 13)
      • 3. Bullich-Massagué, E., Ferrer-San-José, R., Aragüés-Peñalba, M., et al: ‘Power plant control in large-scale photovoltaic plants: design, implementation and validation in a 9.4 MW photovoltaic plant’, IET Renew. Power Gener., 2016, 10, (1), pp. 50–62.
    14. 14)
      • 26. IEEE Recommended Practices and Requirements for Harmonic Control in Electrical Power Systems, IEEE Std. 519-1992, 1993.
    15. 15)
      • 23. Villalva, M.G., Gazoli, J.R., Filho, E.R.: ‘Comprehensive approach to modeling and simulation of photovoltaic arrays’, IEEE Trans. Power Electron., 2009, 24, (5), pp. 1198–1208.
    16. 16)
      • 5. Subudhi, B., Pradhan, R.: ‘A comparative study on maximum power point tracking techniques for photovoltaic power systems’, IEEE Trans. Sustain. Energy, 2013, 4, (1), pp. 89–98.
    17. 17)
      • 13. Xiao, B., Hang, L., Mei, J., et al: ‘Modular cascaded H-bridge multilevel PV inverter with distributed MPPT for grid-connected applications’, IEEE Trans. Ind. Appl., 2015, 51, (2), pp. 1722–1731.
    18. 18)
      • 8. Wu, T., Chang, C., Lin, L., et al: ‘Power loss comparison of single- and two-stage grid-connected photovoltaic systems’, IEEE Trans. Energy Convers., 2011, 26, (2), pp. 707–715.
    19. 19)
      • 14. Liu, L., Li, H., Xue, Y., et al: ‘Decoupled active and reactive power control for large-scale grid-connected photovoltaic systems using cascaded modular multilevel converters’, IEEE Trans. Power Electron., 2015, 30, (1), pp. 176–187.
    20. 20)
      • 4. de Brito, M.A.G., Galotto, L., Sampaio, L.P., et al: ‘Evaluation of the main MPPT techniques for photovoltaic applications’, IEEE Trans. Ind. Electron., 2013, 60, (3), pp. 1156–1167.
    21. 21)
      • 10. Agarwal, R., Hussain, I., Singh, B.: ‘LMF based control algorithm for single stage three-phase grid integrated solar PV system’, IEEE Trans. Sustain. Energy, 2016, 7, (4), pp. 1379–1387.
    22. 22)
      • 25. Akagi, H., Watanabe, E.H., Aredes, M.: ‘Instantaneous power theory and applications to power conditioning’ (Wiley-IEEE Press, February 2007).
    23. 23)
      • 20. Newton, C., Sumner, M.: ‘Neutral point control for multi-level inverters: theory, design and operational limitations’. Industry Applications Conf., 1997. Thirty-Second IAS Annual Meeting, IAS ‘97, Conf. Record of the 1997 IEEE, New Orleans, LA, 1997, vol. 2, pp. 1336–1343.
    24. 24)
      • 6. Elobaid, L.M., Abdelsalam, A.K., Zakzouk, E.E.: ‘Artificial neural network-based photovoltaic maximum power point tracking techniques: a survey’, IET Renew. Power Gener., 2015, 9, (8), pp. 1043–1063.
    25. 25)
      • 12. Chen, L., Amirahmadi, A., Zhang, Q., et al: ‘Design and implementation of three-phase two-stage grid-connected module integrated converter’, IEEE Trans. Power Electron., 2014, 29, (8), pp. 3881–3892.
    26. 26)
      • 2. Romero-Cadaval, E., Francois, B., Malinowski, M., et al: ‘Grid-connected photovoltaic plants: an alternative energy source, replacing conventional sources’, IEEE Ind. Electron. Mag., 2015, 9, (1), pp. 18–32.
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-rpg.2016.0871
Loading

Related content

content/journals/10.1049/iet-rpg.2016.0871
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
Print this page
This is a required field
Please enter a valid email address