Fault Location in Direct Current Microgrids Using DC Components of Voltage and Current

Message:
Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:

Fault location is always one of the protection requirements in direct current microgrids. The variable characteristics of currents, bi-direction load flow, and output power fluctuations in renewable sources, which cause problems for protection devices with fixed regulation, are among the challenges of these methods. Today, real-time data access in microgrids and recent developments in high-precision measurement units have become a new research milestone. In this paper, a fault location method in direct current microgrids in grid-connected mode is proposed using voltage and current measurements at the beginning and end of the section and the presence of photovoltaic and energy storage systems. In this method, using the direct current components of voltage and current and considering the π line model, in addition to the fault distance, the fault section has also been determined. Different resistances and fault locations have little effect on the performance of this algorithm. In addition, changes in line parameters and resource productions do not affect the accuracy of this method. The performance of this method was investigated using a microgrid with 8 nodes in MATLAB software and the results show the acceptable accuracy of this method.

Language:
Persian
Published:
Journal of Iranian Association of Electrical and Electronics Engineers, Volume:21 Issue: 2, 2024
Pages:
135 to 145
https://www.magiran.com/p2734921  
سامانه نویسندگان
  • Mohammad Daisy
    Author (1)
    Phd Student Department of Electrical Engineering Central Tehran Branch, Central Tehran Branch, Islamic Azad University, Tehran, Iran
    Daisy، Mohammad
  • Shahram Javadi
    Corresponding Author (3)
    Associate Professor Electrical Engineering, Central Tehran Branch, Islamic Azad University, Tehran, Iran
    Javadi، Shahram
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