Electromagnetic Compatibility and Insulation Performance of UHVDC Converter Valve After Implanting Sensor Detectors

A three-dimensional model of the UHVDC transmission converter valve is established and the electric field distribution is analyzed using the finite element method. After the deployment of temperature sensor, the simulation model of the sensor in complex electromagnetic environment is further analyzed. By comparing the simulation results of the valve hall before and after deploying sensors, the anti-interference ability and measurement reliability of the converter valve sensor are investigated. In addition, the electromagnetic compatibility is evaluated and the possible failure of the converter valve sensor in the wide frequency electromagnetic interference and DC electromagnetic environment is predicted.