access icon free Real-time control of shunt active power filter under distorted grid voltage and unbalanced load condition using self-tuning filter

In this paper, an alternative control method is proposed to improve the harmonic suppression efficiency of the active power filter in a distorted and an unbalanced power system to compensate for the perturbations caused by the unbalanced non-linear loads. The proposed method uses a self-tuning filter (STF) to process the grid voltage in order to provide a uniform reference voltage to obtain the correct angular position of the phase locked loop. Moreover, the required compensation currents are obtained by implementing another STF in the transformed set of currents in order to separate the fundamental and the harmonic currents. This allows the calculation of a precise reference current for the unbalanced, the non-linear and the variable load conditions. The proposed control method gives an adequate compensating current reference even for a non-ideal voltage and unbalanced current conditions. The real-time control of the filter under the distorted and the unbalanced power system is developed in an RT-LAB real-time platform. The results obtained in the software-in-the-loop configuration are presented to verify the effectiveness of the proposed control technique.

Inspec keywords: active filters; power harmonic filters; phase locked loops; adaptive control; self-adjusting systems

Other keywords: uniform reference voltage; distorted grid voltage; shunt active power filter; harmonic suppression efficiency; RT-LAB real-time platform; self-tuning filter; real-time control; harmonic currents; phase locked loop; unbalanced nonlinear loads; unbalanced load condition; unbalanced current conditions; software-in-the-loop configuration; nonideal voltage conditions; compensation currents

Subjects: Self-adjusting control systems; Power supply quality and harmonics; Other power apparatus and electric machines; Control of electric power systems

References

    1. 1)
      • 9. Cunlu, D., Chongpeng, J., Xiaoying, Z., Li, C.: ‘Harmonic suppression using the improved P-Q theory in the power system’. Int. Workshop on Intelligent Systems and Applications, ISA 2009, 23–24 May 2009, pp. 14. doi: 10.1109/IWISA.2009.5072893.
    2. 2)
    3. 3)
      • 4. Mariun, N., Alam, A., Mahmod, S., Hizam, H.: ‘Review of control strategies for power quality conditioners’. National Power and Energy Conf. Proc., PECon 2004, 29–30 November 2004, pp. 109115.
    4. 4)
      • 2. Gyugyi, L., Strycula, E.C.: ‘Active AC power filters’. Proc. IEEE Ind. Appl. Ann. Meeting, 1976, vol. 19-C, pp. 529535.
    5. 5)
    6. 6)
    7. 7)
    8. 8)
      • 27. Ozerdem, O.C., Biricik, S.: ‘Control of shunt active filter under non-ideal grid voltage and un-balanced load conditions’. Electrical, Electronics and Computer Engineering (ELECO 2012), Turkey (in Turkish), 29 November–1 December 2012.
    9. 9)
      • 18. Karimi, S., Poure, P., Saadate, S.: ‘High performances reference current generation for shunt active filter under distorted and unbalanced conditions’. IEEE Power Electronics Specialists Conf. – PESC, 15–19 June 2008, pp. 195201.
    10. 10)
      • 29. Ghadbane, I., Ghamri, A., Benchouia, M.T., Golea, A.: ‘Three-phase shunt active power filter for power improvement quality using sliding mode controller’. Proc. Second Int. Conf. on Communications, Computing and Control Applications (CCCA), 6–8 December 2012, pp. 16.
    11. 11)
      • 10. Foisal, H.M., Abdul, B.R.: ‘An improved active filter for distorted voltage conditions’. Twenty-Eighth Annual IEEE Applied Power Electronics Conf. and Exposition (APEC) 2013, 17–21 March 2013, pp. 31863193. doi: 10.1109/APEC.2013.6520756.
    12. 12)
      • 21. Adam, G., Stan, A.G., Livint, G.: ‘An adaptive hysteresis band current control for three phase shunt active power filter using fuzzy logic’. 2012 Int. Conf. and Exposition on Electrical and Power Engineering (EPE), 25–27 October 2012, pp. 324329.
    13. 13)
      • 23. Ahmed, S., Madjid, G., Youcef, M., Hamza, T.: ‘Real time control of an active power filter under distorted voltage condition’, Int. J. Power Electron. Drive Syst., 2012, 2, (4), pp. 424423.
    14. 14)
      • 28. Benaissa, A., Rabhi, B., Benkhoris, M.F., Moussi, A., Le Claire, J.: ‘Fuzzy logic controller for five-level shunt active power filter under distorted voltage conditions’. 38th Annual Conf. on IEEE Industrial Electronics Society IECON 2012, 25–28 October 2012, pp. 49734978.
    15. 15)
      • 16. Ben Habib, M.C., Jacquot, E., Saadate, S.: ‘An advanced control approach for a shunt active power filter’. Int. Conf. on Renewable Energies and Power Quality (Icrepq'03), 2003.
    16. 16)
    17. 17)
      • 31. Biricik, S., Ozerdem, O.C., Redif, S., Kmail, M.O.I.: ‘Novel hybrid active power filter structure to compensate harmonic currents and reactive power’. Proc. 16th IEEE Mediterranean Electro-technical Conf. – MELECON 2012, Tunisia, 25–28 March 2012.
    18. 18)
    19. 19)
    20. 20)
      • 22. Gupta, N., Dubey, S.P., Singh, S.P.: ‘PIL based control algorithm for three-phase four-wire active filter for reactive and harmonic compensation under distorted supply’. 2010 Joint Int. Conf. on Power Electronics, Drives and Energy Systems, (PEDES) & 2010 Power India, 20–23 December 2010, pp. 16.
    21. 21)
      • 14. Nguyen, N.K., Flieller, D., Wira, P., Abdeslam, D.O.: ‘Neural networks for phase and symmetrical components estimation in power systems’. 35th Annual Conf. of IEEE Industrial Electronics, IECON '09, 3–5 November 2009, pp. 32523257. doi: 10.1109/IECON.2009.5415210.
    22. 22)
    23. 23)
      • 11. Kim, H.: ‘Control an active filter in unbalanced non-sinusoidal source voltages’. Proc. of the Power Conversion Conf., PCC-Osaka 2002, 2002, vol. 2, pp. 766771. doi: 10.1109/PCC.2002.997616.
    24. 24)
    25. 25)
      • 26. Biricik, S., Ozerdem, O.C., Redif, S., Kmail, M.O.I.: ‘Performance improvement of active power filters based on P-Q and D-Q control methods under non-ideal supply voltage conditions’. Proc. Seventh Int. Conf. on Electrical and Electronics Engineering (ELECO 2011), Bursa, Turkey, 1–4 December 2011.
    26. 26)
    27. 27)
      • 15. Song, H.S.: ‘Control scheme for PWM converter and phase angle estimation algorithm under voltage unbalance and/or sag condition’.PhD thesis, Electronic and Electrical Engineering, South Korea, 2000.
    28. 28)
    29. 29)
      • 6. Komatsu, Y., Kawabata, T.: ‘A control method of active power filter in unsymmetrical and distorted voltage system’. Proc. of the Power Conversion Conf. – Nagaoka 1997, 3–6 August 1997, vol. 1, pp. 161168. doi: 10.1109/PCCON.1997.645605.
    30. 30)
      • 19. Abdusalam, M., Poure, P., Saadate, S.: ‘Hardware implementation of a three-phase active filter system with harmonic isolation based on self-tuning-filter’. Power Electronics Specialists Conf., IEEE-PESC 2008, 15–19 June 2008, pp. 28752881.
    31. 31)
      • 7. Machmoum, M., Bruyant, N.: ‘Control methods for three-phase active power filters under non-ideal mains voltages’. Int. Conf. on Power System Technology Proc., PowerCon 2000, 2000, vol. 3, pp. 16131618. doi: 10.1109/ICPST.2000.898214.
    32. 32)
    33. 33)
      • 38. Biricik, S., Redif, S., Ozerdem, O.C., Basu, M.: ‘Control of the shunt active power filter under non-ideal grid voltage and unbalanced load conditions’. 48th Int. Universities Power Engineering Conf., UPEC, Dublin, Ireland, 2–5 September 2013.
    34. 34)
      • 25. Samadaei, E., Lesan, S., Cherati, S.M.: ‘A new schematic for hybrid active power filter controller’. 2011 IEEE Applied Power Electronics Colloquium (IAPEC), 18–19 April 2011, pp. 143148.
    35. 35)
    36. 36)
      • 32. Biricik, S., Ozerdem, O.C., Redif, S., Kmail, M.O.I.: ‘Performance improvement of active power filter under distorted and unbalanced grid voltage conditions’, J. Electron. Electr. Eng. (Elektron. Elektrotech.), 2013, 19, (1), pp. 3539, ISSN 1392–1215.
    37. 37)
      • 24. Samedaei, E., Vahedi, H., Sheikholeslami, A., Lesan, S.: ‘Using STF-PQ algorithm and hysteresis current control in hybrid active power filter to eliminate source current harmonic’. Power Quality Conf. (PQC), 2010, pp. 16.
    38. 38)
      • 17. Abdusalam, M., Poure, P., Saadate, S.: ‘A new control scheme of hybrid active filter using self-tuning-filter’. Int. Conf. on Power Engineering, Energy and Electrical Drives, POWERENG2007, 12–14 April 2007, pp. 3540.
    39. 39)
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-pel.2013.0924
Loading

Related content

content/journals/10.1049/iet-pel.2013.0924
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading