Research on characterization of partial discharge RF sensors based on FDTD
Radio frequency(RF)detection of partial discharge(PD)can achieve non-contact measurement,so it has good application prospects.Determination method of sensitivity and the factors affecting the sensitivity while the magnetic field antenna as PD RF sensor is studied by taking the small loop antenna as an example.Firstly,the simulation model of gigahertz transverse electro magnetic(GTEM)cell is established based on the finite difference time domain(FDTD)method,and the validity of the simulation model is shown through the comparison of experiment and simulation.On this basis,the influence of antenna structure,size and other factors on sensitivity is considered,and the variation law of sensitivity with antenna diameter,vertical conductor and number of turns of coil is determined.This research lays the technical foundation for further investigation of the characteristics of different magnetic field antenna sensors and optimization of the sensor characteristics to design and implement a new RF magnetic field sensor that can meet the specific power equipment PD test requirements.
radio frequency(RF)partial discharge(PD)magnetic field sensorgigahertz transverse electro magnetic(GTEM)cell
万方数据
维普
