A methodology for the optimized design of power transformer insulation system. Issue 3 (8th May 2018)

• Record Type: Journal Article
• Authors: Rodriguez-Ignacio, Hugo; Lopez-Fernandez, Xose M.; Álvarez-Mariño, Casimiro
• Is Part Of: Compel. Volume 37:Issue 3(2018)
• Page Start: 1002
• Page End: 1010
• Publication Date: 2018-05-08
• Subjects: Power transformers -- Genetic algorithms -- Finite element method (FEM) -- Automated design -- Insulation design -- Optimization method; Electrical engineering -- Data Processing -- Periodicals; Electrical engineering -- Mathematics -- Periodicals; Electrical engineering -- Periodicals; Electronics -- Data Processing -- Periodicals; Electronics -- Mathematics -- Periodicals; 621.3
• DOI: 10.1108/COMPEL-12-2016-0561
• Languages: English
• ISSNs: 0332-1649

Abstract

Abstract : Purpose: The purpose of this paper is to present a methodology based on an optimizer linked with electric finite element method (FEM) for automating the optimized design of power transformer insulation system structures. Design/methodology/approach: The proposed methodology combines two stages to obtain the optimized design of transformer insulation system structures. First, an analytical calculation is carried out with the optimizer to search a candidate solution. Then, the candidate solution is numerically checked in detail to validate its consistency. Otherwise, these two steps are iteratively repeated until the optimizer finds a candidate solution according to the objective function. Findings: The solutions found applying the proposed methodology reduce the inter-electrode distances compared to those insulation designs referenced in the literature for the same value of safety margin. Originality/value: The proposed methodology explores a wide range of insulation system structures in an automated way which is not possible to do with the classical trial-and-error approach based on personal expertise.