A power system fault detection system and method based on ultraviolet and infrared images

Abstract

The invention relates to a power system fault detection system and method based on ultraviolet and infrared images. The system comprises an infrared camera, an ultraviolet camera and an upper computer. The infrared camera and the ultraviolet camera are arranged in front of a power device to be detected; light paths of the infrared camera and the ultraviolet camera are in parallel optical axis; the infrared camera and the ultraviolet camera are connected with the upper computer; and the upper computer is provided with an image processing and analysis module for carrying out processing and analysis on infrared images and ultraviolet images shot by the infrared camera and the ultraviolet camera to obtain a fault result. Compared with the prior art, the system and method are high in detection accuracy, can realize detection without cutting off the power and can realize real-time imaging, high efficiency and simple operation, and provide a new approach for fault detection of the electric power field.

Description

technical field [0001] The invention relates to a power system fault detection system and method, in particular to a power system fault detection system and method based on ultraviolet and infrared images. Background technique [0002] Power equipment operates under high voltage and high current conditions for a long time, and is also damaged by harsh environments and natural conditions such as sun, rain, humidity, high temperature and wind and dust. It is prone to equipment degradation and defects, and even leads to accidents. Occurs, so it is very necessary to perform timing and fixed-point detection of the state of electric equipment. The daily preventive maintenance of power equipment has become the system of the power sector, which can effectively reduce and prevent the occurrence of power equipment accidents. [0003] The maintenance of early power equipment was maintenance after failure, and sudden failures in this way often caused huge losses. Traditional preventiv...

AI Technical Summary

Problems solved by technology

Infrared imaging method is to use the external heating of electrical equipment to find some faults. This method can be carried out without contact and without power failure, but it is vulnerable to sunlight, strong wind, humidity, ambient temperature and some can cause severe surface temperature of high-voltage equipment. Influenced by other factors that change, and it is not easy to intuitively locate the long-distance discharge point

The ultraviolet imaging detection method observes and detects solar-blind ultraviolet light signals, takes ultraviolet images with ultraviolet cameras and converts ultraviolet signals into visible light signals to generate images, which is convenient for intuitive observation of discharge signals. This method is less restricted by environmental, climate and other conditions. It can intuitively and accurately locate the discharge point. It is more sensitive to the defects of external corona and surface discharge of line equipment, such as external damage of wires, broken strands, loose strands and other faults. Compared with infrared detection technology, ultraviolet imaging technology can detect equipment The early hidden dangers of the infrared imaging detection technology form an effective complementarity, but my country's research on solar blind ultraviolet imaging started relatively late. In recent years, some domestic research institutes and universities have only begun to research and explore ultraviolet imagers, and have achieved made some progress

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