Affiliations: [a] COMSATS Institute of Information Technology, Wah Cantt, Wah 47040, Pakistan | [b] State Key Laboratory of Power Transmission Equipment & System Security and New Technology, The Electrical Engineering College, Chongqing University, Chongqing 400044, China | [c] Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
Correspondence:
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Corresponding author: Aamir Qamar, Department of Electrical Engineering, COMSATS Institute of Information Technology, Wah Cantt, Wah 47040, Pakistan. Tel.: +92 333 9869637; E-mail: aamirqamar@ciitwah.edu.pk.
Abstract: Location and topology of substation grounding grids are critical for its regular tests and safe operation. Schematic drawing of the grounding grid is prone to getting lost or damaged. As excavation is costly and time consuming, locating substation grounding grid is important. This paper proposes a novel method to locate substation grounding grid by using the derivative method and the concept of locating a geometrical object in polar coordinate system. Due to rectangular structure of grounding grid, its location can also be determined from the location of its single branch. Simulation and experimental results verify that the proposed method is feasible and accurate to solve the inverse problem regarding the location of substation grounding grid.
Keywords: Derivative, grounding grid, location, magnetic flux density
