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Updated: May 28, 2026
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Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities
Published on: July 24, 2015
Analysis of Charge Parameter Characteristics of Graphene Partial Discharge Sensor Based on First-Principles Study
Huiyuan Zhang1, Pengfei Jia1, Ming Nie2
1China Electric Power Research Institute, State Grid Corporation of China, Beijing 100192, China.
Micromachines
|May 27, 2026
Summary
Graphene sensors significantly improve partial discharge (PD) detection in power grids. These advanced sensors show a 66% higher transport coefficient and 40% better signal transmission than traditional materials.
Area of Science:
- Electrical Engineering
- Materials Science
- Condensed Matter Physics
Background:
- Transparent power grids necessitate advanced sensor research for real-time monitoring.
- Partial discharge (PD) sensors are crucial for detecting insulation faults in power systems.
- Conventional PD sensors face limitations in detection sensitivity and signal transmission due to material properties.
Purpose of the Study:
- To investigate the enhancement of PD sensor performance using advanced graphene sensing materials.
- To evaluate the charge parameters and transport characteristics of graphene-based PD sensors.
- To provide a theoretical basis for developing high-performance PD sensors for power grids.
Main Methods:
- First-principles calculations were employed to assess key charge parameters of PD sensors.
- A microstructure model of the PD sensor was constructed for simulations.
- Charge transport characteristics of graphene PD sensors were simulated under an electric field.
Main Results:
- Graphene-based sensors demonstrated a 66% higher transport coefficient compared to conventional materials.
- Experimental results showed a 40% improvement in signal transmission for graphene PD sensors.
- Simulations revealed enhanced charge parameter properties of graphene under simulated electric fields.
Conclusions:
- Graphene is a promising material for developing high-performance PD sensors.
- The study offers microscopic theoretical insights for optimizing electrode plate materials.
- This research is significant for the advancement of PD sensor technology in power grids.
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