Real-time video monitoring system for ultra-high voltage converter station

Abstract

The invention relates to a CCTV image monitoring system for an ultra-high voltage direct current converter station, and solves the problem of poor observation effect caused by the installation height and angle of a camera head relative to a disconnecting link and a contact terminal of an earthing knife. The monitoring system comprises a monitor background and the camera head, wherein the monitor background and the camera head are in communication connection through an optical transceiver; the camera head is a infrared adjustable pick-up camera with a holder; a wiper is arranged on a spherical cover of the holder; the infrared adjustable pick-up camera is fixed at the top of a remotely-controlled lifter; the lifter is connected with a driving device; a remotely-controlled infrared lamp is further arranged at the top of the lifter; and the holder, the driving device and the remotely-controlled infrared lamp are correspondingly electrically connected with a power supply respectively, and are correspondingly in communication connection with the monitor background respectively. According to the system, the height and the angle of the observation camera head can be adjusted at any time as required in observation; when dirt accumulation of the camera head is serious, dirt cleaning up of the camera head can be carried out at any time; and when the camera head failures to work, the lifter is descended to a safe height to perform corrective maintenance on the camera head without the constraint of a device being charged in a direct current field.

Description

technical field [0001] The invention relates to a CCTV image monitoring system of an ultra-high voltage direct current transmission converter station. Background technique [0002] At present, the number of UHVDC transmission projects in China is gradually increasing. With the continuous improvement of transmission voltage levels, the size of power transmission and transformation equipment is getting larger and larger. The ±800kV Yunguang UHVDC project under the jurisdiction of China Southern Power Grid is the leading example. For example, the height of some knife gates and ground knife in the DC field is more than 17 meters, and the contact parts are all at the highest point of the knife gate and ground knife. Due to the high voltage level and the high distance between the contacts and the ground, it is very difficult to effectively confirm whether the knife switch and ground knife are opened and closed in place during operation and maintenance. The knife switch and ground...

AI Technical Summary

Problems solved by technology

[0004] The invention solves the problems of poor observation angle, poor visibility and poor observation effect caused by the installation height and angle of the camera relative to the knife switch and the ground knife contact, and also solves the problem of not affecting the normal operation of the DC system Camera decontamination issues, maintenance issues, and night vision requirements

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