Visual Image Database Processing Algorithm and 3D Model Configuration Applied to Operational Status Detection of SF6 Insulated Power Equipment

$\pm 800 {kV}$ converter station consists of an AC field, the DC field, and the valve hall. Each pole is connected in series through two sets of 12 pulse converters, with each set boosting 400 kV. These two sets of converters are respectively installed in the high-end valve hall and the low-end valve hall. The valve hall is key component of converter station, with numerous internal equipment, diverse interfaces, and complex electromagnetic field distribution. The equipment inside the valve hall includes valve towers, converter valve side bushings and grounding switches, the current transformers, voltage dividers, wall bushings, pillar insulators, suspension insulators, pipe bus-bar, lightning arrester, and the voltage equalization shielding and connection drainage fittings. Equipment have different forms, multiple voltage levels, complex electrical connections, and some can withstand AC and DC superimposed voltages. In addition, the space inside valve hall is limited, It is necessary to minimize air clearance between devices with different potentials as much as possible, which leads to the complex distribution of electromagnetic fields in valve chamber, and is prone to distortion of the equipment’s electric field distribution and corona discharge. Under bending load, the stress concentration area mainly focuses on lower end of metal flange. The radial bending displacement of the casing is 4.764 mm, and its displacement and deflection are very small. The bending stress is mainly concentrated at flange at the end of the bushing, with equivalent stress size of $\mathbf{25.9 \mathrm {MPa} \text {. This article innovatively}}$ proposes method for evaluating the operating status of highvoltage power bushings by combining artificial intelligence image processing algorithms with 3D technology, and proposes artificial intelligence processing technology for the safe and stable operation of high-voltage power equipment.