Simulation and Analysis of High-Frequency Resistor Sensor for Corona Current Measurement under Ultra High-Voltage Direct-Current Environment

摘要

In this paper, a design for High-Frequency Resistor Sensor has been presented for accurate measurement of corona current. Based on charge simulation method (CSM) and the finite-element method (FEM), the surface electric field of the high frequency resistor sensor generated from the High-Voltage Direct-Current (HVDC) transmission lines is presented. Simultaneously, Self-capacitance of high frequency resistor sensor has provided reference for optimization of high frequency resistor sensor. The high-frequency resistor has been applied to +- 1000kV HVDC transmission lines to evaluate DC corona characteristics in China.