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

access icon free Simple four-quadrant grid-tie control scheme with unity power factor rectifier mode for single-phase DC/AC converters

© The Institution of Engineering and Technology
Received 05/06/2016, Accepted 16/03/2017, Revised 14/12/2016, Published 20/03/2017

This study proposes a voltage-oriented control scheme for four-quadrant grid-tie of a single-phase bidirectional direct current/alternating current (AC) voltage-sourced converter (VSC) to operate smartly at modes of unity power factor (PF) rectifier (UPFR), inverter or static var compensator. Given the possible harmonic-distorted AC grid voltage, the proposed scheme follows or filters the grid voltage to generate the appropriate current command template for minimising the harmonic current while synchronising with the grid. The following template is for the UPFR mode, whereas the filtered template is for the other modes. The scheme proposes a unique band-pass filter (BPF) to proceed with direct component generation for the filtered template. The proposed scheme further unifies the grid-tie inductor current-to-voltage conversion for the following emplate and the quadrature component generation for the filtered template into a differentiator. The control laws under the filtered and following templates are derived. The BPF and differentiator designs are introduced. Simulations and experiments are conducted with a one-cycle control full-bridge VSC to verify the proposed grid-tie control scheme and evaluate its performance.

Inspec keywords: DC-AC power convertors; power filters; voltage-source convertors; rectifying circuits

Other keywords: voltage-sourced converter; differentiator design; unity power factor rectifier mode; grid-tie control scheme; static var compensator; inverter; voltage-oriented control scheme; band-pass filter; unity PF rectifier; harmonic-distorted AC grid voltage; four-quadrant grid-tie control scheme; one-cycle control full-bridge VSC; single-phase bidirectional direct current-alternating current VSC; filtered template; grid-tie inductor current-to-voltage conversion; UPFR; direct component generation; unity power factor rectifier; current command template; quadrature component generation; single-phase DC-AC converters; BPF

Subjects: Control of electric power systems; Other power apparatus and electric machines; AC-DC power convertors (rectifiers)

References

    1. 1)
      • 31. Faulkenberry, L.M.: ‘An introduction to operational amplifiers, with linear IC applications’ (John Wiley & Sons Press, 1982, 2nd edn.), Ch. 8.
    2. 2)
      • 21. Wang, Y.F., Li, Y.W.: ‘A grid fundamental and harmonic component detection method for single-phase systems’, IEEE Trans. Power Electron., 2013, 28, (5), pp. 2204–2213.
    3. 3)
      • 6. Purnama, I., Chi, P.C., Hsieh, Y.C., et al: ‘One cycle controlled grid-tied differential boost inverter’, IET Power Electron., 2016, 9, (11), pp. 2216–2222.
    4. 4)
      • 12. Chen, Y., Smedley, K.M.: ‘A cost-effective single-stage inverter with maximum power point tracking’, IEEE Trans. Power Electron., 2004, 19, (5), pp. 1289–1294.
    5. 5)
      • 30. Mohan, N., Undeland, T.M., Robbins, W.P.: ‘Power electronics: converters, applications, and design’ (John Wiley & Sons Press, 2002, ©2003, 3rd edn.), ch. 18.
    6. 6)
      • 14. Ciobotaru, M.: ‘Reliable grid condition detection and control of single-phase distributed power generation systems’. Phd thesis, 2009, Ch. 2.
    7. 7)
      • 19. De Brabandere, K., Loix, T., Engelen, K., et al: ‘Design and operation of a phase-locked loop with Kalmanestimator-based filter for single-phase applications’. Proc. IEEE The 32nd Annual Conf. on Industrial Electronics (IECON) 2006, Paris, 6–10 November 2006, pp. 525–530.
    8. 8)
      • 32. ‘Application Report, AN-20, An Applications Guide for Op Amps, SNOA621C–February 1969 – Revised May 2013, pp.7–8’. Avialable at http://www.ti.com/lit/an/snoa621c/snoa621c.pdf, accessed 28 January 2016.
    9. 9)
      • 24. Zhu, H., Arnet, B., Haines, L., et al: ‘Grid synchronization control without AC voltage sensors’. Proc. IEEE The 18th Annual Applied Power Electronics Conf. and Exposition 2003, APEC ’03, 9–13 February 2003, vol. 1, pp. 172–178.
    10. 10)
      • 23. Reza, M.S., Ciobotaru, M., Agelidis, V.G.: ‘Robust technique for accurate estimation of single phase grid voltage fundamental frequency and amplitude’, IET Gener. Transm. Distrib., 2015, 9, (2), pp. 183–192.
    11. 11)
      • 2. Gallardo-Lozano, J., Romero-Cadaval, E., Minambres-Marcos, V., et al: ‘Grid reactive power compensation by using electric vehicles’. Proc. IEEE Electric Power Quality and Supply Reliability Conf. (PQ) 2014, Rakvere, Estonia, 11–13 June 2014, pp. 19–24.
    12. 12)
      • 16. Silva, S.M., Lopes, B.M., Filho, B.J.C., et al: ‘Performance evaluation of PLL algorithms for single-phase grid-connected systems’. Proc. IEEE The 39th Annual Industry Applications Conf. (IAS) 2004, 3–7 October 2004, vol. 4, pp. 2259–2263.
    13. 13)
      • 26. Smedley, K.M.: ‘Control Art of Switching Converters’. PhD. Thesis, California Institute of Technology, 1990, Ch. 6.
    14. 14)
      • 22. Reza, M.S., Ciobotaru, M., Agelidis, V.G.: ‘Accurate estimation of single-phase grid voltage parameters under distorted conditions’, IEEE Trans. Power Deliv., 2014, 29, (3), pp. 1138–1146.
    15. 15)
      • 4. Qian, H., Zhang, J., Lai, J.S.J., et al: ‘A high-efficiency grid-tie battery energy storage system’, IEEE Trans. Power Electron., 2011, 26, (3), pp. 886–896.
    16. 16)
      • 7. Kang, S.W., Kim, K.H.: ‘Sliding mode harmonic compensation strategy for power quality improvement of a grid-connected inverter under distorted grid condition’, IET Power Electron., 2015, 8, (8), pp. 1461–1472.
    17. 17)
      • 9. Sanatkar-Chayjani, M., Monfared, M.: ‘Simple digital current control strategy for single-phase grid-connected converters’, IET Power Electron., 2015, 8, (2), pp. 245–254.
    18. 18)
      • 15. Ciobotaru, M., Teodorescu, R., Blaabjerg, F.: ‘A new single-phase PLL structure based on second order generalized integrator’. Proc. IEEE The 37th Annual Power Electronics Specialists Conf. 2006, PESC'06, 18–22 June 2006, pp. 1–6.
    19. 19)
      • 33. ‘TL08xx JFET-Input Operational Amplifiers SLOS081I – FEBRUARY 1977–REVISED MAY 2015’. Avialable at http://www.ti.com/lit/ds/symlink/tl082.pdf, accessed 28 January 2016.
    20. 20)
      • 1. Zeng, Z., Zhao, R.X., Yang, H.: ‘Coordinated control of multi-functional grid-tied inverters using conductance and susceptance limitation’, IET Power Electron., 2014, 7, (7), pp. 1821–1831.
    21. 21)
      • 18. Filho, R.M.S., Seixas, P.F., Cortizo, P.C., et al: ‘Comparison of three single-phase PLL algorithms for UPS applications’, IEEE Trans. Ind. Electron., 2008, 55, (8), pp. 2923–2932.
    22. 22)
      • 13. Blaabjerg, F., Teodorescu, R., Liserre, M., et al: ‘Overview of control and grid synchronization for distributed power generation systems’, IEEE Trans. Ind. Electron., 2006, 53, (5), pp. 1398–1409.
    23. 23)
      • 5. Sun, P., Liu, C., Lai, J.S.J., et al: ‘Grid-tie control of cascade dual-buck inverter with wide-range power flow capability for renewable energy applications’, IEEE Trans. Power Electron., 2012, 27, (4), pp. 1839–1849.
    24. 24)
      • 17. Ferreira, R.J., Araújo, R.E., Peças Lopes, J.A.: ‘A comparative analysis and implementation of various PLL techniques applied to single-phase grids’. Proc. IEEE The 3rd Int. Youth Conf. on Energetics (IYCE) 2011, Leiria, Portugal, 7–9 July 2011, pp. 1–8.
    25. 25)
      • 10. Burger, B., Engler, A.: ‘Fast signal conditioning in the single phase systems’. Proc. The 9th European Conf. Power Electronics Applications, Graz, Austria, 2001.
    26. 26)
      • 27. Smedley, K.M., Cuk, S.: ‘One-cycle control of switching converters’, IEEE Trans. Power Electron., 1995, 10, (6), pp. 625–633.
    27. 27)
      • 28. Xue, Y.S., Chang, L.C., Kjaer, S.B., et al: ‘Topologies of single-phase inverters for small distributed power generators: an overview’, IEEE Trans. Power Electron., 2004, 19, (5), pp. 1305–1314.
    28. 28)
      • 11. ‘Application Note, AN966, L6561, Enhanced Transition Mode Power Factor Corrector, pp. 5–6’. Avialable at http://www.st.com/web/en/resource/technical/document/application_note/CD00004002.pdf, accessed 28January 2016.
    29. 29)
      • 8. Monfared, M., Sanatkar, M., Golestan, S.: ‘Direct active and reactive power control of single-phase grid-tie converters’, IET Power Electron., 2012, 5, (8), pp. 1544–1550.
    30. 30)
      • 3. Amin, M.M., Mohammed, O.A.: ‘A variable line filter for active and reactive power control through grid-tie-inverter as a dynamic VAR compensator for WECS’. Proc. IEEE Power and Energy Society General Meeting (PES) 2013, Vancouver BC, Canada, 21–25 July 2013, pp. 1–5.
    31. 31)
      • 25. Brown, J.W., Churchill, R.V.: ‘Complex variables and applications’ (McGRAW-HILL Press, 2009, 8th edn.), Chs. 1–3.
    32. 32)
      • 20. Bei, T.Z., Wang, P.: ‘Robust frequency-locked loop algorithm for grid synchronisation of single-phase applications under distorted grid conditions’, IET Gener. Transm. Distrib., 2016, 10, (11), pp. 2593–2600.
    33. 33)
      • 29. Vazquez, N., Almazan, J., Alvarez, J., et al: ‘Analysis and experimental study of buck, boost, and buck-boost inverters’. Proc. IEEE The 30th Annual Power Electronics Specialists Conf.1999, PESC ’99, Charleston, SC, USA, 27 June–01 July 1999, vol. 2, pp. 801–806.
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-rpg.2016.0561
Loading

Related content

content/journals/10.1049/iet-rpg.2016.0561
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
Print this page
This is a required field
Please enter a valid email address