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Microgrid Protection Strategy Based on the Autocorrelation of Current Envelopes Using the Squaring and Low-Pass Filtering Method

Author

Listed:
  • Shazia Baloch

    (Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, Korea)

  • Saeed Zaman Jamali

    (Electrical Engineering Department, Balochistan University of Engineering and Technology, Khuzdar 89100, Pakistan)

  • Khawaja Khalid Mehmood

    (U.S.-Pakistan Center for Advanced Studies in Energy, National University of Sciences and Technology, Islamabad 44100, Pakistan)

  • Syed Basit Ali Bukhari

    (U.S.-Pakistan Center for Advanced Studies in Energy, National University of Sciences and Technology, Islamabad 44100, Pakistan)

  • Muhammad Saeed Uz Zaman

    (Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, Korea)

  • Arif Hussain

    (Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, Korea)

  • Chul-Hwan Kim

    (Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, Korea)

Abstract

To resolve the protection issues caused by high penetration of distributed energy resources, this paper proposes an efficient protection scheme for microgrids based on the autocorrelation of three-phase current envelopes. The proposed strategy uses a squaring and low-pass filtering approach for evaluating the envelope of the current signal. Then, the variance of the autocorrelation function is used to extract the hidden information of the distorted envelope to detect the fault signatures in the microgrid. Furthermore, the reactive power is used for determining the fault direction. The performance of the proposed protection scheme was verified on a standard medium-voltage microgrid by performing simulations in the MATLAB/Simulink environment (Version: R2017b). The proposed scheme was shown to be easy to implement and have good performance under looped and radial configuration for both grid-connected and islanded operation modes. The simulation results showed that the scheme could not only detect, locate, classify, and isolate various types of short-circuit faults effectively but also provide backup protection in case of primary protection failure.

Suggested Citation

  • Shazia Baloch & Saeed Zaman Jamali & Khawaja Khalid Mehmood & Syed Basit Ali Bukhari & Muhammad Saeed Uz Zaman & Arif Hussain & Chul-Hwan Kim, 2020. "Microgrid Protection Strategy Based on the Autocorrelation of Current Envelopes Using the Squaring and Low-Pass Filtering Method," Energies, MDPI, vol. 13(9), pages 1-13, May.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:9:p:2350-:d:355502
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    References listed on IDEAS

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    1. Mirsaeidi, Sohrab & Said, Dalila Mat & Mustafa, Mohammad Wazir & Habibuddin, Mohammad Hafiz & Ghaffari, Kimia, 2016. "Fault location and isolation in micro-grids using a digital central protection unit," Renewable and Sustainable Energy Reviews, Elsevier, vol. 56(C), pages 1-17.
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    Cited by:

    1. Musfira Mehmood & Syed Basit Ali Bukhari & Abdullah Altamimi & Zafar A. Khan & Syed Ali Abbas Kazmi & Muhammad Yousif & Dong Ryeol Shin, 2022. "Microgrid Protection Using Magneto-Resistive Sensors and Superimposed Reactive Energy," Sustainability, MDPI, vol. 15(1), pages 1-28, December.
    2. Faisal Mumtaz & Haseeb Hassan Khan & Amad Zafar & Muhammad Umair Ali & Kashif Imran, 2022. "A State-Observer-Based Protection Scheme for AC Microgrids with Recurrent Neural Network Assistance," Energies, MDPI, vol. 15(22), pages 1-22, November.
    3. Faisal Mumtaz & Kashif Imran & Abdullah Abusorrah & Syed Basit Ali Bukhari, 2022. "Harmonic Content-Based Protection Method for Microgrids via 1-Dimensional Recursive Median Filtering Algorithm," Sustainability, MDPI, vol. 15(1), pages 1-18, December.
    4. Hyun Shin & Sang Heon Chae & Eel-Hwan Kim, 2020. "Design of Microgrid Protection Schemes Using PSCAD/EMTDC and ETAP Programs," Energies, MDPI, vol. 13(21), pages 1-19, November.

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