It is an urgent requirement to suppress surface partial discharge (PD) activities of dielectrics for modern electrical and electronic devices. Here, we introduce a method to mitigate the surface PD in a manner of tailoring insulation surface conductivity. A surface coating with a conductivity ranging from 10−13 to 10−10 S is developed to regulate the surface charge migration in the vicinity of the triple junction and to suppress effectively the surface PD activity. The excellent performance of this coating provides an approach for surface PD suppression at DC voltage, which has great application potential in the insulation design of DC electric power equipment, DC generators, power electronic devices, printed circuit board (PCB) layout, and various integrated electrostatic sensors and actuators.
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19 July 2021
Research Article|
July 20 2021
Tailoring insulation surface conductivity for surface partial discharge mitigation
Chuanyang Li
;
Chuanyang Li
Electrical Insulation Research Center, Institute of Materials Science, University of Connecticut
, Storrs, Connecticut 06269, USA
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Tohid Shahsavarian
;
Tohid Shahsavarian
Electrical Insulation Research Center, Institute of Materials Science, University of Connecticut
, Storrs, Connecticut 06269, USA
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Mohamadreza Arab Baferani
;
Mohamadreza Arab Baferani
Electrical Insulation Research Center, Institute of Materials Science, University of Connecticut
, Storrs, Connecticut 06269, USA
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Yang Cao
Yang Cao
a)
Electrical Insulation Research Center, Institute of Materials Science, University of Connecticut
, Storrs, Connecticut 06269, USA
a)Author to whom correspondence should be addressed: [email protected]
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Chuanyang Li
Tohid Shahsavarian
Mohamadreza Arab Baferani
Yang Cao
a)
Electrical Insulation Research Center, Institute of Materials Science, University of Connecticut
, Storrs, Connecticut 06269, USA
a)Author to whom correspondence should be addressed: [email protected]
Appl. Phys. Lett. 119, 032903 (2021)
Article history
Received:
March 15 2021
Accepted:
July 05 2021
Citation
Chuanyang Li, Tohid Shahsavarian, Mohamadreza Arab Baferani, Yang Cao; Tailoring insulation surface conductivity for surface partial discharge mitigation. Appl. Phys. Lett. 19 July 2021; 119 (3): 032903. https://doi.org/10.1063/5.0050456
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