A simple method considering the synergetic effect of space charge and inhomogeneous material conductivity for DC electric field computation Article Swipe
Xiao Yang
,
Yi Zhang
,
Zhuodong Yang
,
Hao Dong
,
Chengrong Li
,
Bo Qi
,
Licheng Lu
·
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.1049/hve2.12207
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.1049/hve2.12207
The current continuity equation is usually applied to solve DC electric field distribution when there is inhomogeneous material conductivity due to temperature gradient or multi‐layer dielectrics. However, in the presence of charge accumulation, which may result from the process of electrode injection, impurity ionisation or charge trapping, the material conductivity is in tangled relationship with local field strength, and the current continuity equation can be hardly applied due to the ignorance of conductivity distribution. Thus, quantitative analysis on the effect of space (surface) charge for DC apparatus with inhomogeneous material conductivity has been a difficult problem, which requires a complicated physical model to solve. This paper has proposed a simple method to compute the synergetic influence of inhomogeneous conductivity and the space charge on the DC field distribution; through assigning bulk (interface) charge as functions of local material conductivity and field strength, the effect of inhomogeneous conductivity can be incorporated in Gauss' law and the space charge accumulation can be further included in the equation. The effect of space (surface) charge on electric field distribution in DC apparatus with temperature gradient as well as multiple‐layer dielectrics is simulated through the proposed method, which shows that the method has offered a convenient approach for investigating the effect of charge accumulation on DC field distribution under various insulation structure and working conditions.
Related Topics
Concepts
Conductivity
Space charge
Electric field
Materials science
Surface conductivity
Condensed matter physics
Field (mathematics)
Charge (physics)
Dielectric
Charge density
Charge carrier
Surface charge
Electric potential
Computational physics
Physics
Voltage
Mathematics
Optoelectronics
Quantum mechanics
Electron
Pure mathematics
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1049/hve2.12207
- https://onlinelibrary.wiley.com/doi/pdfdirect/10.1049/hve2.12207
- OA Status
- gold
- Cited By
- 3
- References
- 27
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4224280888
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
-
https://openalex.org/W4224280888Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.1049/hve2.12207Digital Object Identifier
- Title
-
A simple method considering the synergetic effect of space charge and inhomogeneous material conductivity for DC electric field computationWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2022Year of publication
- Publication date
-
2022-04-22Full publication date if available
- Authors
-
Xiao Yang, Yi Zhang, Zhuodong Yang, Hao Dong, Chengrong Li, Bo Qi, Licheng LuList of authors in order
- Landing page
-
https://doi.org/10.1049/hve2.12207Publisher landing page
- PDF URL
-
https://onlinelibrary.wiley.com/doi/pdfdirect/10.1049/hve2.12207Direct link to full text PDF
- Open access
-
YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
-
https://onlinelibrary.wiley.com/doi/pdfdirect/10.1049/hve2.12207Direct OA link when available
- Concepts
-
Conductivity, Space charge, Electric field, Materials science, Surface conductivity, Condensed matter physics, Field (mathematics), Charge (physics), Dielectric, Charge density, Charge carrier, Surface charge, Electric potential, Computational physics, Physics, Voltage, Mathematics, Optoelectronics, Quantum mechanics, Electron, Pure mathematicsTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
3Total citation count in OpenAlex
- Citations by year (recent)
-
2025: 2, 2023: 1Per-year citation counts (last 5 years)
- References (count)
-
27Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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