Safety early warning system and method for maintenance of 1000kV extra-high voltage AC transformer station

Abstract

The invention discloses a safety early warning system and method for maintenance of a 1000kV extra-high voltage AC transformer station, comprising a CPU, a power supply module, a wireless communication module, an alarm module and a display module. The safety early warning method is as follows: based on a three-dimensional map of a transformer station, a virtual electronic fence is planned with live equipment as the center, and positioning chips are arranged on maintenance workers, live equipment and maintenance tools; and the relative positions between the maintenance workers and the virtual electronic fence during the maintenance operation and conditions of actual operation steps are shown in the safety early warning system, when the maintenance workers mistakenly enter the virtual electronic fence and the actual operation steps do not meet the standard operation procedures, the alarm is started at the operation site and the safety early warning system at the same time, and the standard operation procedures are power cutting, electricity testing, ground connection, indication board hanging and fencing in the work area in order. The method realizes the standardized management of the transformer station maintenance work flow.

Description

technical field [0001] The invention relates to the field of substation operation and maintenance, in particular to a 1000kV UHV AC substation maintenance operation safety early warning system and method. Background technique [0002] There are many types of substation equipment, and the structure is not fixed. Compared with the line, the maintenance operation environment is more complicated, and the maintenance operation process is more cumbersome. Mishandling live equipment) is likely to cause safety accidents, so the management of the maintenance process and personnel management should be standardized to ensure the safety of substation maintenance equipment and personnel. [0003] At present, the safety warning method of substation maintenance operation is mainly based on image acquisition and processing. A substation operation safety management and control system based on visual positioning and dynamic target capture technology is mainly composed of high-definition camer...

AI Technical Summary

Problems solved by technology

This method can only realize the visual display of maintenance operations, and requires a large number of cameras to be arranged in advance. The image transmission data is large, the maintenance cost is high, and the digital management of the operation process cannot be realized.

[0004] Existing warning devices (sound and light warning devices), warning signs, or fences can only warn maintenance personnel, but cannot prevent maintenance personnel from accidentally entering live compartments and mistakenly boarding live equipment

However, the existing positioning equipment has poor accuracy, high cost, and no practical value. Therefore, there is currently no substation maintenance operation process management and personnel positioning system that meets actual needs.

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