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Proposing a New Approach to Generate the Differential Trajectory of the Differential Relays Using COMTRADE Files

Author

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  • Seyed Amir Hosseini

    (Electrical and Computer Engineering Group, Golpayegan College of Engineering, Isfahan University of Technology, Golpayegan 8771767498, Iran)

  • Ali Akbar Nazari

    (Department of Electrical Engineering, Qazvin Branch, Islamic Azad University, Qazvin 341851416, Iran)

  • Behrooz Taheri

    (Department of Electrical Engineering, Qazvin Branch, Islamic Azad University, Qazvin 341851416, Iran)

  • Farzad Razavi

    (Department of Electrical Engineering, Qazvin Branch, Islamic Azad University, Qazvin 341851416, Iran)

  • Hamed Hashemi-Dezaki

    (Department of Electrical and Computer Engineering, University of Kashan, 6 km Ghotbravandi Blvd., Kashan 8731753153, Iran
    Research and Innovation Center for Electrical Engineering (RICE), Faculty of Electrical Engineering, University of West Bohemia (UWB), 30100 Pilsen, Czech Republic)

Abstract

The differential relay is subject to transient events such as inrush current, which may affect its correct operation. Therefore, evaluating the reliable and accurate operation of differential relays is important, which is only possible by mapping the relay’s differential trajectory on its setting curve. However, except for the SIGRA software, creating a differential trajectory only for Siemens relays, there is a gap in developing a method to extract this trajectory for other commercial differential relays. Hence, in this paper, a new method for generating the differential trajectory of the differential relay from their six input currents and mapping it on the relay setting curve is presented. The proposed method uses the differential relay COMTRADE files to access the relay input currents during an incident. The currents recorded in the COMTRADE files belong to the secondary sides of the current transformers (CTs). Accordingly, the impacts of the current transformers’ connections and the protected transformer’s connection type should be considered in the proposed study. The ability of the proposed method to generate the differential trajectory for different incidents that occurred on the power transformers is evaluated using simulation studies and also according to the experimental tests. The results illustrate the efficiency of the proposed method in generating the differential trajectory from the COMTRADE files. In addition, comparing the results of the proposed method with the results created in SIGRA software shows the higher accuracy of the proposed method in producing the differential trajectory of the differential relay.

Suggested Citation

  • Seyed Amir Hosseini & Ali Akbar Nazari & Behrooz Taheri & Farzad Razavi & Hamed Hashemi-Dezaki, 2022. "Proposing a New Approach to Generate the Differential Trajectory of the Differential Relays Using COMTRADE Files," Sustainability, MDPI, vol. 14(21), pages 1-25, October.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:21:p:13953-:d:954731
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    References listed on IDEAS

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    1. Umer Ehsan & Muhammad Jawad & Umar Javed & Khurram Shabih Zaidi & Ateeq Ur Rehman & Anton Rassõlkin & Maha M. Althobaiti & Habib Hamam & Muhammad Shafiq, 2021. "A Detailed Testing Procedure of Numerical Differential Protection Relay for EHV Auto Transformer," Energies, MDPI, vol. 14(24), pages 1-21, December.
    2. Tao Zheng & Xinhui Yang & Xingchao Guo & Xingguo Wang & Chengqi Zhang, 2020. "Zero-Sequence Differential Current Protection Scheme for Converter Transformer Based on Waveform Correlation Analysis," Energies, MDPI, vol. 13(7), pages 1-14, April.
    3. Abdul Azeem & Majid Jamil & Shamimul Qamar & Hasmat Malik & Rayees Ahmad Thokar, 2021. "Design of Hardware Setup Based on IEC 61850 Communication Protocol for Detection & Blocking of Harmonics in Power Transformer," Energies, MDPI, vol. 14(24), pages 1-27, December.
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