1. بهینه سازی پارامترهای حلقۀ کرونا به منظور تعدیل میدان الکتریکی در مقرۀ پلیمری با استفاده از روش های غیر مبتنی بر گرادیان
- Author
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سیدمیثم سیدبرزگر, علیرضا صادقی, and معصومه خودسوز
- Subjects
COMPOSITE insulators ,ELECTRIC fields ,FINITE element method ,CORONA discharge ,HIGH voltages - Abstract
Electric field intensity is one of the factors affecting the corona discharge and insulation of high voltage composite insulators. Accordingly, it is necessary to adjust the potential distribution and electric field along the insulator. Using the corona ring on the high voltage side has a great potential to minimize the intensity of the electric field. Since the design and installation conditions of the corona ring can change the electric field, in this paper, Derivative-Free Solvers (DFS) based numerical solution methods are used to obtain optimal parameters. Three-dimensional finite element method (FEM) in COMSOL software is employed to simulate and compute the electric field. Comparison of the results has shown that Derivative-Free Solvers have acceptable speed and good convergence. The parameters obtained from the optimization methods can reduce the electric field by up to %66. According to the results, FEM-DFS hybridization technique could be very helpful in optimization of corona ring design. [ABSTRACT FROM AUTHOR]
- Published
- 2021