access icon free Closed-loop waveform control of boost inverter

The input current of single-phase inverter typically has an AC ripple component at twice the output frequency, which causes a reduction in both the operating lifetime of its DC source and the efficiency of the system. In this paper, the closed-loop performance of a proposed waveform control method to eliminate such a ripple current in boost inverter is investigated. The small-signal stability and the dynamic characteristic of the inverter system for input voltage or wide range load variations under the closed-loop waveform control method are studied. It is validated that with the closed-loop waveform control, not only was stability achieved, the reference voltage of the boost inverter capacitors can be instantaneously adjusted to match the new load, thereby achieving improved ripple mitigation for a wide load range. Furthermore, with the control and feedback mechanism, there is minimal level of ripple component at the DC bus during steady state, and the transient response is rapid with negligible effect on the output voltage. Analysis, simulation and experimental results are presented to support the investigation.

Inspec keywords: control system synthesis; feedback; stability; power capacitors; closed loop systems; transient response; invertors

Other keywords: stability design; transient response; load variations; boost inverter capacitors; DC source; DC bus; single-phase inverter; reference voltage; small-signal stability; feedback mechanism; dynamic characteristic; closed-loop waveform control method; AC ripple component; bode plots

Subjects: Other power apparatus and electric machines; Control of electric power systems; Control system analysis and synthesis methods; Stability in control theory; DC-AC power convertors (invertors)

References

    1. 1)
    2. 2)
    3. 3)
    4. 4)
    5. 5)
    6. 6)
    7. 7)
    8. 8)
    9. 9)
    10. 10)
    11. 11)
      • 13. Serban, I.: ‘A novel transistor-less power decoupling solution for single-phase inverters’. IEEE Conf. of the IEEE Industrial Electronics Society (IECON), Vienna, Austria, November 2013, pp. 14961500.
    12. 12)
    13. 13)
    14. 14)
      • 5. Schenck, M., Lai, J.S., Stanton, K.: ‘Fuel cell and power conditioning system interactions’. IEEE Applied Power Electronics Conf. (APEC), Texas, USA, June 2005, pp. 114120.
    15. 15)
      • 25. Chen, Z.S.: ‘Study of Sliding Mode Controls of Acceleration of a Shake’ Available at http://www.paper.edu.cn/html/releasepaper/2011/11/236/, accessed, November 2011.
    16. 16)
    17. 17)
      • 28. Ma, Y.D., Qiu, B., Cong, Q.: ‘Research on single-stage inverter based on bi-directional buck DC converter’. Proc. IEEE Power Electronics for Distributed Generation Systems (PEDG), Hefei, China, June 2010, pp. 299303.
    18. 18)
      • 30. Vazquez, N., Alvarez, J., Aguilar, C., et al: ‘Some critical aspects in sliding mode control design for the boost inverter’. Proc. IEEE Power Electronics Congress (CIEP), Morelia, Mexico, October 1998, pp. 7681.
    19. 19)
    20. 20)
    21. 21)
    22. 22)
    23. 23)
      • 7. Hu, H.B., Harb, S., Kutkut, N., et al: ‘Power decoupling techniques for micro-inverters in PV systems – a review’. IEEE Energy Conversion Congress and Exposition (ECCE), Atlanta, USA, September 2010, pp. 32353240.
    24. 24)
      • 14. Song, Y.J., Enjeti, P.N.: ‘A high frequency link direct DC/AC converter for residential fuel cell power systems’. Proc. IEEE Power Electronics Specialists Conf. (PESC), Aachen, Germany, June 2004, pp. 47554761.
    25. 25)
      • 6. Stevens, J.L., Shaffer, J.S., Vandenham, J.T.: ‘The service life of large aluminum electrolytic capacitors: effects of construction and application’. IEEE Industry Applications Conf. (IAS), Chicago, USA, June 2001, pp. 24932499.
    26. 26)
      • 21. Zhu, G.P., Ruan, X.B., Wang, X.H., et al: ‘Suppression of the second harmonic current and improvement of the dynamic performance for two-stage single-phase inverters:’. Proc. IEEE Int. Conf. on Automation Science and Engineering (CSEE), Madison, USA, August 2013, pp. 7280.
    27. 27)
    28. 28)
      • 16. Song, Y.J., Han, S.B., Li, X., et al: ‘A power control scheme to improve the performance of a fuel cell hybrid power source for residential application’. Proc. IEEE Power Electronics Specialists Conf (PESC), Orlando, USA, June 2007, pp. 12611266.
    29. 29)
      • 26. Caceres, R., Barbi, I.: ‘Sliding mode controller for the boost inverter’. IEEE Power Electronics Congress (CIEP), Cuernavaca, Mexico, October 1996, pp. 247252.
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