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A Novel Time-Domain Passive Islanding Detection Technique for Grid-Connected Hybrid Distributed Generation System

  • Research Article-Electrical Engineering
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Abstract

In this paper, a time-domain passive islanding detection technique for a grid-connected hybrid distributed generating system has been developed using modified empirical mode decomposition (MOEMD). With the help of the MOEMD, the point of common coupling voltage is decomposed into several oscillatory components called intrinsic mode functions. The islanding will be detected if the magnitude of the islanding detection waveform exceeds the threshold over a predefined delay time. The proposed technique can identify all kinds of islanding cases even for zero power mismatches nearly at 0.3 s of the predefined delay time. The effectiveness of the proposed scheme is tested for different operating conditions that include various non-islanding events. Moreover, the proposed method is faster than the discrete wavelet transform technique, and it has low computational time. The advantages of the proposed method are independent of the system parameters, zero non-detection zone, no classifier requirement, and its performance is independent of the capacity and nature of D.G. connected to the grid.

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Abbreviations

r 1w = r 2w = r 3w :

WSC filter resistances (Ω)

L 1w = L 2w = L 3w :

WSC filter inductances (mH)

r 1g = r 2g = r 3g :

Grid-side filter resistances (Ω)

L 1g = L 2g = L 3g :

Grid-side filter inductances (mH)

I sa, I sb, I sc :

Stator currents of PMSG (A)

P :

No. of poles

T opt :

Optimum torque (N/m2)

I sd, I sq :

Dq-axis current of PMSG (A)

V sd, V sq :

Dq-axis voltage of PMSG (V)

V dc :

D.C. link voltage (V)

I dc :

D.C. link current (A)

I gd, I gq :

Dq-axis current of grid (A)

V gd, V gq :

Dq-axis voltage of grid (V)

I a, I b, I c :

Line currents of the grid (A)

V a, V b, V c :

Instantaneous phase voltages (V)

V pv :

PV array terminal voltage (V)

I pv :

Current from P.V. array (A)

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Authors and Affiliations

  1. Electrical and Electronics Engineering Department, Lakireddy Bali Reddy College of Engineering, Vijayawada, Andhra Pradesh, India

    Pangedaiah Bezawada

  2. School of Electrical Engineering, Vellore Institute of Technology, Vellore, Tamilnadu, India

    Pedda Obulesu Yeddula

  3. Electrical and Electronics Engineering Department, JNTUK, Kakinada, Andhra Pradesh, India

    Venkata Reddy Kota

Authors
  1. Pangedaiah Bezawada
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  2. Pedda Obulesu Yeddula
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  3. Venkata Reddy Kota
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Corresponding author

Correspondence to Pedda Obulesu Yeddula.

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Bezawada, P., Yeddula, P.O. & Kota, V.R. A Novel Time-Domain Passive Islanding Detection Technique for Grid-Connected Hybrid Distributed Generation System. Arab J Sci Eng 46, 9867–9877 (2021). https://doi.org/10.1007/s13369-021-05493-y

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  • DOI: https://doi.org/10.1007/s13369-021-05493-y

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