The effect of inrush transients on PV inverter’s grid impedance measurement based on inter-harmonic injection

Authors

  • V. Ćuk Author
  • S. Bhattacharyya Author
  • J.F.G. Cobben Author
  • W.L. Kling Author
  • R.B. Timens Author
  • F.B.J. Leferink Author

DOI:

https://doi.org/10.24084/repqj08.404

Abstract

This paper addresses a cause for false tripping of

photovoltaic inverters with anti-islanding protection based on

impedance measurement with inter-harmonic injection. Earlier

discussions about tripping problems happening when several

devices are doing the measurement at the same time are

supplemented with a problem caused by inrush transients of

nearby devices.

A series of experiments was conducted in the Power Quality

laboratory of the TU/e, on a PV inverter which complies with

the DIN VDE 0126 standard. Impedance measurement was

done in parallel with the inverter and measurement results are

presented. A criterion for false tripping caused by transients is

explored. Also, influences of network impedance and grid

harmonic pollution on false tripping were analyzed. In the end,

some signal processing techniques are proposed to avoid this

problem.

Author Biographies

  • V. Ćuk

    Department of Electrical Engineering, Eindhoven University of Technology

    PO Box 513, CR. 2.06, 5600 MB, Eindhoven, the Netherlands

    Phone: +31402474637, Fax: +31402450735, e-mail: V.Cuk@tue.nl

  • S. Bhattacharyya

    Department of Electrical Engineering, Eindhoven University of Technology

    PO Box 513, CR. 2.06, 5600 MB, Eindhoven, the Netherlands

    Phone: +31402474637, Fax: +31402450735

  • J.F.G. Cobben

    Department of Electrical Engineering, Eindhoven University of Technology

    PO Box 513, CR. 2.06, 5600 MB, Eindhoven, the Netherlands

    Phone: +31402474637, Fax: +31402450735

  • W.L. Kling

    Department of Electrical Engineering, Eindhoven University of Technology

    PO Box 513, CR. 2.06, 5600 MB, Eindhoven, the Netherlands

    Phone: +31402474637, Fax: +31402450735

  • R.B. Timens

    Department of Electrical Engineering, University of Twente

  • F.B.J. Leferink

    Department of Electrical Engineering, University of Twente

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Published

2024-01-24

Issue

Vol. 8 No. 1 (2010)

Section

Articles