Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

New Method to Estimation Electrical Stresses on 300kV OHTL/Cable Joints Due to Switching Operation Using ANN to Determine the Insulation Lifetime

Version 1 : Received: 7 February 2022 / Approved: 8 February 2022 / Online: 8 February 2022 (15:42:05 CET)

How to cite: M.A.S. Mahmoud, M. New Method to Estimation Electrical Stresses on 300kV OHTL/Cable Joints Due to Switching Operation Using ANN to Determine the Insulation Lifetime. Preprints 2022, 2022020122. https://doi.org/10.20944/preprints202202.0122.v1 M.A.S. Mahmoud, M. New Method to Estimation Electrical Stresses on 300kV OHTL/Cable Joints Due to Switching Operation Using ANN to Determine the Insulation Lifetime. Preprints 2022, 2022020122. https://doi.org/10.20944/preprints202202.0122.v1

Abstract

This article discuss the estimation of electrical stresses input that is required to determine lifetime degradation of the HV cables installed within overhead transmission lines (OHTL’s). Abort from lightning effects, these electrical stresses are mainly generated due to repetitive switching operation of the transmission line that produces transient overvoltage (TOV) stress and high frequency stress. The transient overvoltage (TOV) due to switching-off the transmission line at the interface points between the cable and OHTL is estimated using artificial neural network (ANN). PSCAD software is used to build the transmission line model for 749 different case in order to build the required database for ANN training. Two different algorithm input to train ANN with one hidden layer and one output layer using different number of nodes are modeled in MATLAB. The results performance is continuously compared and evaluated till acceptable Regression is achieved to insure the error is less than +/-1.5%. The high frequency due to switching-on the transmission line is also recorded and analyzed. The results show that this new method is efficient, accurate and useful as there is no cable monitoring system is available for each HV cable installed within the transmission line.

Supplementary and Associated Material

https://www.linkedin.com/in/prof-dr-muhammad-m-b649aa1b/: LinkedIn : Prof. Dr. Muhammad Manar Mahmoud

Keywords

electrical insulation; lifetime; life span; HV cable; electrical stresses; ANN application

Subject

Engineering, Electrical and Electronic Engineering

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