A method and system for identifying electrical arcs in electrical equipment

Abstract

The invention discloses a method for identifying the electric arc used by electric equipment, which includes: collecting the voltage data and current data of the electric equipment in a steady state in real time, and performing filtering and sampling processing on the voltage and current data, To obtain the processed voltage data and current data of the electrical equipment respectively, obtain the voltage-current trajectory curve of the electrical equipment according to the processed voltage data and current data of the electrical equipment, and normalize the voltage-current trajectory curve and image binarization to obtain the binary image of the electrical equipment and back it up, and determine whether a binary image with a similarity of more than 80% to the obtained binary image of the electrical equipment can be found in the arc database, if If it is, it indicates that the circuit of the electrical equipment has an arc during use. The invention can solve the technical problems of low electric arc recognition accuracy, complicated calculation process and long judgment time existing in the existing electric arc detection method.

Description

technical field [0001] The invention belongs to the technical fields of fire safety and pattern recognition, and in particular relates to a method and system for recognizing electric arcs of electrical equipment. Background technique [0002] With the development of science and technology and the improvement of people's living standards, electric energy is widely used as an important energy source. While electric energy is widely used in all aspects of people's lives, it also brings great potential safety hazards. Many unsafe factors in electricity use lead to continuous occurrence of electrical fires. Statistics from the Fire Department of the Ministry of Public Security show that from 2011 to 2016, a total of 524,000 electrical fires occurred in my country, resulting in 3,261 deaths, more than 2,000 injuries, and direct economic losses of 9.2 billion yuan. [0003] According to statistics, about 40% of electrical fires are caused by arcs generated by electrical equipment ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above defects or improvement needs of the prior art, the present invention provides a method and system for identifying arcs in electrical equipment, the purpose of which is to solve the problem of low arc identification accuracy and calculation Technical issues with complicated process and long judgment time

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