Proficient Control Strategies for Distributed Generation of Voltage in Unbalanced Grid Coupled system

Proficient Control Strategies for Distributed Generation of Voltage in Unbalanced Grid Coupled system

AUTHOR

  • S SENTHIL KUMAR, T RAJAMANIKANDAN, J NITHYALAKSHMI
  • SUBMITTED

  • 2021
  • PUBLISHED MONTH

  • July-August
  • ARTICLE TYPE

  • Research
  • DOWNLOAD

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    STATICS

    ABSTRACT


    Due to the wide spread of power electronics equipment in modern
    electrical systems, the increase of the harmonics disturbance in the ac mains
    currents has became a major concern due to the adverse effects on all
    equipment. Power electronic converters are commonly used for interfacing
    distributed generation (DG) systems to the electrical power network.
    However, the unbalanced voltage compensation may cause adverse effects on
    the IFCs' operation such as output active power oscillation and DC link
    voltage variations. Moreover, since the compensation is realized through the
    available rating of IFCs, it is equally important to consider the effectiveness
    of control strategy for unbalanced voltage compensation. Specially, the first
    control strategy aims at minimizing the IFC's active power oscillation and
    reducing the adverse effects of unbalanced voltage compensation on IFC's
    operation. In DG systems a fast and accurate positive-sequence, fundamental
    grid voltage frequency and magnitude tracking is required to synchronize grid
    connected converter systems with the mains. The proposed System deals with
    a Multi level inverter for DG systems mitigating power quality issues, such as
    harmonics and reactive power compensation for grid-connected operation. It
    performs the nonlinear load current harmonic compensation, mitigates
    harmonics yielding more accurate and pure sine wave output. So Instead of
    using inverter we can use multilevel inverters in the power system equipment.
    Keywords: DG Systems, IFC, Unbalanced voltage compensation, Multi
    level inverter.
    References
    [1] F. Nejabatkhah and Y. W. Li, “Overview of power management strategies of hybrid AC/DC microgrid,” IEEE Trans. Power. Electron., in Press, 2015.
    [2] A. Von Jouanne, and B. Banerjee, "Assessment of voltage unbalance," IEEE Trans. Power Del., vol. 16, no. 4, pp. 782-790, Oct 2001.
    [3] L. Tzung-Lin, H. Shang-Hung, and C. Yu-Hung, “D-STATCOM with positive-sequence admittance and negative-sequence conductance to mitigate
    voltage fluctuations in high-level penetration of distributed-generation systems, ” IEEE Trans. Ind. Electron., vol. 60, no. 4, pp. 1417-1428, Apr. 2013.
    [4] M. Savaghebi, A. Jalilian, J. C. Vasquez, and J. M. Guerrero, “Autonomous voltage unbalance compensation in an islanded droop-controlled microgrid,
    ” IEEE Trans. Ind. Electron., vol.60, no.4, pp.1390,1402, Apr. 2013.
    [5] D. Graovac, V. A. Kati, and A. Rufer, “Power quality problems compensation with universal power quality conditioning system,” IEEE Trans. Power
    Del., vol. 22, no. 2, pp. 968–976, Apr. 2007.
    [6] B. Singh and J. Solanki, “An implementation of an adaptive control algorithm for a three-phase shunt active filter,” IEEE Trans. Ind. Electron., vol. 56,
    no. 8, pp. 2811–2820, Aug. 2009.
    [7] F. Wang, J. L. Duarte, and M. A. M. Hendrix, “Grid-interfacing converter systems with enhanced voltage quality for microgrid application—concept
    and implementation,” IEEE Trans. Power Electron., vol. 26, no. 12, pp. 3501–3513, Dec. 2011.
    [8] J. Miret, A. Camacho, M. Castilla, L. G. Vicuna, and J. Matas, “Voltage support control strategies for static synchronous compensators under
    unbalanced voltage sags,” IEEE Trans. Ind. Electron., vol. 61, no. 2, pp. 808–820, Apr. 2013.
    [9] A. Camacho, M. Castilla, J. Miret, A. Borrell, and L. de Vicuna, “Active and reactive power strategies with peak current limitation for distributed
    generation inverters during unbalanced grid faults,” IEEE Trans. Ind. Electron., vol. 62, no. 3, pp. 1515-1525, Mar. 2015.
    [10] R. Teodorescu, M. Liserre, and P. RodrÕguez, Grid Converters for Photovoltaic and Wind Power Systems, New York, NY, USA: Wiley, 2011.
    [11] J. Miret, M. Castilla, A. Camacho, L. GarcÕa de Vicua, and J. Matas, “Control scheme for photovoltaic three-phase inverters to minimize peak currents
    during unbalanced grid-voltage sags,” IEEE Trans. Power Electron., vol. 27, no. 10, pp. 4262–4271, 2012.
    [13] A. Camacho, M. Castilla, J. Miret, J. Vasquez, and E. Alarcon-Gallo, “Flexible voltage support control for three phase distributed generation inverters under
    grid fault,” IEEE Trans. Ind. Electron., vol. 60, no. 4, pp. 1429–1441, 2013.J. Miret, A. Camacho, M. Castilla, L. G. de Vicuna, and J. Matas, “Control
    scheme with voltage support capability for distributed generation inverters under voltage sags,” IEEE Trans. Power Electron., vol. 28, no. 11, pp. 5252–
    5263, Nov. 2013.
    [14] C. T. Lee, C. W. Hsu, and P. T. Cheng, “A low-voltage ride-through technique for grid-connected converters of distributed energy resources,” IEEE Trans.

    Ind. Appl., vol. 47, no. 4, pp. 1821–1832, Jul. 2011.

    Proficient Control Strategies for Distributed Generation of Voltage in Unbalanced Grid Coupled system