Open AccessInternal electric field modification method based on region segmentation for vacuum interrupters
Author(s) -
Li Hongyang,
Wang Zhongyu,
Jiang Wensong
Publication year - 2017
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/iet-gtd.2016.0949
Subject(s) - electric field , segmentation , computer science , field (mathematics) , swarm behaviour , set (abstract data type) , algorithm , biological system , mathematical optimization , mathematics , artificial intelligence , physics , quantum mechanics , pure mathematics , biology , programming language
Enhancement of insulation performance has been a long‐lasting problem for vacuum interrupter (VI) design. Traditional design focuses on reducing the maximal electric field strength (EFS); however, the distribution pattern of electric field also plays an important role in insulating efficiency. A method based on region segmentation is proposed to modify the electric field distribution. By dividing the electric field area, the regression function derived from orthogonal experimental design is established for each unit to reveal the relationship between the structure parameters of VI and EFS. Then the target EFS distribution is designed, and the optimal solution set is obtained by practical swarm optimisation. Fuzzy cluster selection is introduced to choose the design scheme from the solution set. Comparison of the simulation and experimental results shows the effectiveness of the proposed method.