Optimal electric field distribution for 765kV polymer insulator including corona rings.

Autor: Jthear, Yousif Kareem, Sultan, Ahmed Jasim, Bonneya, Mehdi F.
Předmět:
Zdroj: AIP Conference Proceedings; 2024, Vol. 3051 Issue 1, p1-12, 12p
Abstrakt: Polymeric insulators are among the most crucial components in a power transmission system. The electric field (EF) distribution and voltage on the insulators' surface affect the insulators' performance and service life. Several experimental and numerical methods for calculating and studying the EF. This paper utilized corona rings at both ends to minimize the value of the EF and improve potential distribution along the surface of the 765-kilo Volt polymer insulator-based two-dimensional finite element method (FEM). At first, the mathematical relationship linking the EF to the parameters of the corona rings (corona ring radius, ring tube thickness, and vertical location of the ring) was established to calculate the EF strength and influence of the corona ring parameters. Then, optimization techniques within the COMSOL Multiphysics are utilized to optimize the position and diameters of the corona rings and lower the EF at the insulator's surface. According to the results, the optimization procedures utilizing the Nelder-Mead technique reduced the high value of the EF by 70% compared to the EF value with the original corona rings. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index