Research on equivalent circuit of bearing current discharge based on carbon nanotubes

In this paper, a bearing current release circuit based on carbon nanotube field emission is proposed. By combining the carbon nanotube field emission equivalent circuit with the motor bearing current equivalent circuit, the equivalent circuit of motor bearing current release based on carbon nanotube field emission is obtained. The relationship between the parameters is analyzed, and the circuit model of bearing current equivalent circuit based on carbon nanotube field emission is established. A non-contact field emission bypass is set between the shaft and the housing of the motor to eliminate the bearing current. This method can avoid material wear and is a new way to restrain bearing current.