Ultraviolet imaging discharge anomaly detection method and system for digital power equipment

Abstract

The invention belongs to the field of electric power equipment discharge anomaly detection, and provides a digital electric power equipment ultraviolet imaging discharge anomaly detection method and system, and the method comprises the steps: carrying out the detection of a plurality of electric power equipment detection points according to a detection task, associating the detection task with the information of the corresponding electric power equipment detection points, and obtaining an ultraviolet imaging detection file; performing integrity and compliance verification on the ultraviolet imaging detection file to form an ultraviolet imaging detection file library; positioning a discharge position based on the verified ultraviolet imaging detection file in the ultraviolet imaging detection file library, and giving a detection result according to the positioned discharge position; according to the method, the original photon number is directly converted into the relative discharge intensity representation, the strongest discharge position can be obviously found on the output image, the diagnosis characteristic quantity in the detection file is automatically extracted and displayed, field personnel are assisted in treating abnormal conditions in real time in a targeted manner, and a treatment strategy is rapidly formulated.

Description

technical field [0001] The invention belongs to the technical field of abnormal discharge detection of electric power equipment, and in particular relates to a method and system for abnormal discharge detection of ultraviolet imaging of digital electric power equipment. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] As a commonly used detection method for power equipment, UV imaging can detect hidden dangers or damage of external insulation as early as possible, which is of great significance for reducing equipment failure rates and ensuring the safe operation of power systems. [0004] The traditional ultraviolet images reflect the discharge area in the form of binarized light spots. When the instrument outputs the detection data, it directly binarizes the detected intensity information, and the binarization threshold is unknown, which l...

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Problems solved by technology

[0004] The traditional ultraviolet image reflects the discharge area in the form of binarized light spots. When the instrument outputs the detection data, it directly performs binarization processing on the detected strength information, and the threshold of binarization is unknown, which leads to detection All the discharge points in the spot area in the image cannot see the difference in intensity. The abnormality of the discharge can only be judged by the size and outline of the discharge area. Usually, the statistical photon number is used, and the statistical method of photon number between different instrument manufacturers still exists. difference

[0005] In addition, for infrared, ultraviolet and other detection methods, when conducting general testing on a large number of devices, the biggest workload is to match the detection data with the tested devices and record the basic information of the detection. The whole process is time-consuming and labor-intensive.

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