Anti-interference Detection Method for Partial Discharge of Ring Main Unit Considering White Noise Frequency Domain Characteristics

The conventional detection method for partial discharge interference of the ring main unit is mainly based on detection sensitivity, and the interference signal is not effectively filtered, which affects the final detection effect. Therefore, the anti-interference detection method of partial discharge of the ring main unit is designed considering the characteristics of the white noise frequency domain. Based on the characteristics of the white noise frequency domain, the interference signal of partial discharge is filtered, and the interference source of partial discharge of the ring main unit is analyzed to avoid the influence of the interference signal on partial discharge signal detection. An anti-interference detection model is built for partial discharge. The study analyzes the white noise frequency domain characteristics of partial discharge of the ring main unit. It quickly judges the partial discharge situation and achieves accurate detection of partial discharge anti-interference of the ring main unit. Through comparative experiments, it can be seen that this detection method can filter out the white noise around the partial discharge signal, maximize the detection effect of partial discharge of the ring main unit, and provide a guarantee for the effective use of the ring main unit.