Infrared spectrum diagnosis method for operating state of electrical equipment in power system

Abstract

An infrared spectrum diagnosis method for an operating state of electrical equipment in a power system comprises the following steps of determining the contour and position of the electrical equipmentin an infrared image by using the image recognition technology, and obtaining the highest temperature of the equipment through infrared image recognition; constructing a solid model of the electricalequipment through thermodynamic simulation, obtaining the temperature distribution of the electrical equipment operating under different electrical and meteorological conditions by a finite element analysis method, and taking the simulated temperature as a sample to train the neural network; predicting the maximum temperature of the electrical equipment under different operation conditions with the trained neural network, and comparing the obtained maximum temperature with the maximum temperature obtained by infrared image recognition, thereby realizing the diagnosis of the operating state ofthe equipment. The infrared spectrum diagnosis method, by evaluating the operating state of the high-voltage electrical equipment under the condition that a plurality of external conditions affectingthe operation of the equipment are fully considered, greatly improves the accuracy of the evaluation result, and provides a reliable basis for the maintenance and maintenance of the high-voltage equipment.

Description

technical field [0001] The invention relates to a method for diagnosing the running state of high-voltage electrical equipment according to infrared spectrum, belonging to the technical field of power transmission and distribution. Background technique [0002] With the rapid development of social economy, people's demand for electricity continues to increase, and the scale of the power grid continues to expand. At the same time, higher requirements are placed on the stable operation of the power system. As an essential part of the power grid, high-voltage electrical equipment plays an important role in ensuring power quality and maintaining the safe and stable operation of the power grid. Therefore, accurate evaluation of the operating status of electrical equipment is the key to ensuring the reliability of equipment and the safe operation of the power grid. [0003] Monitoring and evaluating the operating status of equipment can provide a basis for equipment maintenance a...

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Problems solved by technology

[0004] At present, the means of evaluating the state of electrical equipment mainly use the equipment state scoring method, the evaluation method based on traditional machine learning, the expert system method, etc., but most of the existing methods evaluate the equipment from the perspective of electrical characteristics, and rarely take into account the sunshine The impact of external conditions such as strength, ambient temperature, and wind speed on the operation of the equipment has certain limitations, and it requires a lot of manpower and material resources to perform regular inspections on the equipment, which is extremely inconvenient to operate

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