Design and simulation of voltage and electric field distribution on disc insulators using finite element method in Opera software

Lalitha, M. Padma; Kumar, K. Venkata Pavan; Samala, Venkatesu

doi:10.1109/iseg.2014.7005587

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…The dimensions obtained for the grading ring design, as reported in [29,[33][34][35][36], can be considered as optimized values. It is important to note that these values represent custom cases and should be regarded as recommendations in view of the lack of a general method or universal standard.…”

Section: Discussion Of the Obtained Resultsmentioning

confidence: 99%

Case Study: Optimizing Grading Ring Design for High Voltage Polymeric Insulators in Power Transmission Systems for Enhanced Electric Field and Voltage Distribution by Using a Finite Element Method

Aziz,

Aouabed,

Abdellah

et al. 2023

Energies

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This research paper aims to investigate the optimal design of grading rings for high-voltage polymeric insulators in an actual power transmission system, with a focus on improving the electrical representation of the insulator strings. One such subsidiary accessory commonly used with porcelain and polymer insulator strings is the grading ring, which is employed to improve the electric field and voltage distribution surrounding the insulator string. The efficiency of insulator strings can be enhanced by grading rings, as they facilitate a more linear potential division along the strings. The design parameters of grading rings significantly influence their performance on insulator strings. In this study, we examine the optimal design of the grading rings of high-voltage polymer insulators, since no uniform design methodology has been developed for high-voltage polymer insulators, and their optimization is currently the subject of many research studies. The electric field on an outdoor polymeric insulator is examined using finite element method (FEM) software and COMSOL Multi-Physics program. A 2D model is utilized to simulate a 220 kV polymeric insulator. The effectiveness of high-voltage polymeric insulators greatly depends on the dimensions and locations of the grading rings. Therefore, the impacts of the radius of the grading ring and that of its tube and the tube’s vertical position are thoroughly investigated, under dry and humid conditions. To achieve this objective, a search algorithm is employed to adjust the dimensions and locations of the grading ring. The optimization approach in this study is based on determining the maximum electric field across the insulator surface, while ensuring that it remains below the corona initiation level.

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Section: Discussion Of the Obtained Resultsmentioning

confidence: 99%

Case Study: Optimizing Grading Ring Design for High Voltage Polymeric Insulators in Power Transmission Systems for Enhanced Electric Field and Voltage Distribution by Using a Finite Element Method

Aziz,

Aouabed,

Abdellah

et al. 2023

Energies

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“…It offers a range of simulation models and integrates with Allegro® Design Entry HDL and OrCAD® Capture for schematic capturing [20,21]. Opera Simulation Software, a comprehensive CAE toolset for electromagnetic system design, analysis, simulation, and optimization, includes multiphysics effects [22,23]. Created in 1984, Opera facilitates the design and optimization of 2D and 3D electromechanical devices, solving various electromagnetic problems.…”

Section: Introductionmentioning

confidence: 99%

Solving Ordinary Differential Equations with Boundary Conditions Numerically

Hernandez,

Morales-Alarcon,

Filobello-Nino

et al. 2024

IJMRA

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This article elucidates the method and implementation of finite differences, aiming to enhance clarity for students and provide detailed insights into its application, as many authors assume a pre-existing understanding of numerical analysis. It includes two case studies employing Dirichlet and Cauchy boundary conditions, demonstrating the precision and effectiveness of this numerical tool in obtaining results.

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Optimal Design of Corona Ring for 132 kV Insulator at High Voltage Transmission Lines Based on Optimisation Techniques

et al. 2023

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The installation of a corona ring on an insulator string on a transmission line is one of the solutions to reduce the electric field stress surrounding the energised end of the insulator string. However, installing a corona ring with an optimum design to reduce the electric field magnitude on an insulator string is a challenging task. Therefore, in this work, a method to achieve the optimum design of a corona ring for 132 kV composite non-ceramic insulator string was proposed using two optimisation methods: the Imperialist Competitive Algorithm (ICA) and Grey Wolf Optimisation (GWO). A composite non-ceramic insulator string geometry with and without a corona ring was modelled in finite element analysis and used to obtain the electric field distribution in the model geometry. The electric field distribution was evaluated using a variation in the corona ring's dimensions, i.e., the ring diameter, the ring tube diameter and the vertical position of the ring along the insulator string. From the results achieved, a comparison of the minimum electric field magnitude along the insulator string with a corona ring design shows that the minimum electric field magnitude is found to be lower using optimisation techniques compared to without using optimisation techniques by between 3.724% and 3.827%. Hence, this indicates the capability and effectiveness of the proposed methods in achieving the optimum design of a corona ring on an insulator string.

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Design and simulation of voltage and electric field distribution on disc insulators using finite element method in Opera software

Cited by 3 publications

References 7 publications

Case Study: Optimizing Grading Ring Design for High Voltage Polymeric Insulators in Power Transmission Systems for Enhanced Electric Field and Voltage Distribution by Using a Finite Element Method

Case Study: Optimizing Grading Ring Design for High Voltage Polymeric Insulators in Power Transmission Systems for Enhanced Electric Field and Voltage Distribution by Using a Finite Element Method

Solving Ordinary Differential Equations with Boundary Conditions Numerically

Optimal Design of Corona Ring for 132 kV Insulator at High Voltage Transmission Lines Based on Optimisation Techniques

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