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Early warning system based on the detection of UHF SF6 partial discharge (PD) signals is a necessary means for the protection of Gas-Insulated Switchgear (GIS) in service as well as the power system to which it is connected. In order to ensure the safe and reliable operation of GIS, it is important to adopt an effective diagnosing method, which is able to identify signals of harmful defects promptly...
With the development of smart grid, energy storage technology will play an increasingly important role in the power system. As an excellent quick energy storage device, super capacitors have instantaneous power densities more significant than batteries and energy densities larger than dielectric capacitors, and have been widely applied to power quality conditioning equipment, new energy power generation...
This paper deals with the fractional order modelling of the supercapacitor voltage response for a given current profile. The model is obtained using the porous electrode theory applied on the supercapacitor case. In order to simplify the complexity of the model, it is assumed that there is no diffusion process in the electrolyte. These assumption leads to neglect the supercapacitor self-discharge...
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