A Review on the Impact of Transmission Line Compensation and RES Integration on Protection Schemes

Ntombenhle Mazibuko (), Kayode T. Akindeji and Katleho Moloi
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Ntombenhle Mazibuko: Department of Electrical Power Engineering, Department of Electronics and Computer Engineering, Durban University of Technology, Durban 4000, South Africa
Kayode T. Akindeji: Department of Electrical Power Engineering, Smart Grid Research Centre, Durban University of Technology, Durban 4000, South Africa
Katleho Moloi: Department of Electrical Power Engineering, Smart Grid Research Centre, Durban University of Technology, Durban 4000, South Africa

Energies, 2024, vol. 17, issue 14, 1-29

Abstract: South Africa is currently experiencing an energy crisis because of a mismatch between energy supply and demand. Increasing energy demand necessitates the adequate operation of generation and transmission facilities to maintain the reliability of the power system. Transmission line compensation is used to increase the ability to transfer power, thereby enhancing system stability, voltage regulation, and reactive power balance. Also, in recent years, the introduction of renewable energy sources (RES) has proven to be effective in supporting the grid by providing additional energy. As a result, the dynamics of power systems have changed, and many developing nations are adopting the integration of renewable energy into the grid to increase the aspect ratio of the energy availability factor. While both techniques contribute to the grid’s ability to meet energy demand, they frequently introduce technical challenges that affect the stability and protection of the systems. This paper provides a comprehensive review of the challenges introduced by transmission line compensation and the integration of renewable energy, as well as the various techniques proposed in the literature to address these issues. Different compensation techniques, including fault detection, classification, and location, for compensated and uncompensated transmission lines, including those connected to renewable energy sources, are reviewed. This paper then analyzes the adaptive distance protection schemes available in the literature to mitigate the impact of compensation/integration of RES into the grid. Based on the literature reviewed, it is essential for protection engineers to understand the dynamics introduced by network topology incorporating a combination of RES and heavily compensated transmission lines.

Keywords: transmission line compensation; renewable energy integration; distance protection; adaptive distance protection (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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