학술논문
Electric Field Regulation of Multi-dimensional Functionally Graded Materials for GIS Spacer under DC and AC Voltages
Document Type
Conference
Author
Source
2023 IEEE 4th International Conference on Electrical Materials and Power Equipment (ICEMPE) Electrical Materials and Power Equipment (ICEMPE), 2023 IEEE 4th International Conference on. :1-4 May, 2023
Subject
Language
Abstract
The study discusses the application of the multi-dimensional functionally graded materials ($\varepsilon$/$\sigma$-MFGM) for spacers in offshore bipolar HVDC GIS. The conductivity of the surface functionally graded material ($\sigma$-SFGM) and the permittivity distribution of the bulk functionally graded material ($\varepsilon$-FGM) are designed to coordinately regulate DC and AC electric filed distributions, respectively. The maximum electric field strength of the $\varepsilon$/$\sigma$-MFGM spacer decreases by 83.4% and 18.5% under DC and AC voltages. Meanwhile, the DC and AC flashover voltages of the $\varepsilon$/$\sigma$-MFGM spacer increase by about 34% and 15%, respectively.