Transmission line ice-coating pre-warning and dynamic compatibilization system on-line monitoring device

Abstract

The invention discloses a transmission line ice-coating pre-warning and dynamic compatiilization system on-line monitoring device, comprising a monitoring sub-unit (terminal node) on the transmission line, a main control monitoring unit (base station node) on the tower, an expert analysis system, a dispatch EMS system and the monitoring sub-unit and the monitoring main unit also comprise a sensor, a power module, a data collection and control module and a data communication module. The wireless distribution type test control is realized and the information collected by the monitoring sub-unit is sent to the main control monitoring unit (base station node) using the short-distance wireless radio frequency technique and the base station node transfers the data using GSM / GPRS / CDMA / 3G technique and various parameters are synthesized based on an expert analysis system to realize the circuit safety and a reliable reference is provided for the dispatch EMS system. It is not necessary to change the circuit. The device has advantages of quick monitoring speed, low invest and high safety.

Description

technical field [0001] The invention relates to an online monitoring device for an icing early warning and dynamic capacity increase system of a transmission line, belonging to the field of high-voltage transmission power monitoring. Background technique [0002] Whether in mountainous or plain areas, the conductors of transmission lines in spring and winter will be covered with ice, which will cause great damage to high-voltage transmission lines, resulting in frequent ice disasters, such as the severe ice disaster in 2008. Threats to the safe operation of electrical installations. At the same time, with the development of social needs and the acceleration of the construction of power plants, the problem of insufficient transmission capacity caused by lagging power grid planning and construction and scarcity of transmission corridors has become increasingly prominent. The demand for capacity increase of power grid transmission lines is very large and urgent. [0003] On th...

AI Technical Summary

Problems solved by technology

The icing on the wires of transmission lines can only be formed under specific natural environmental conditions. At present, the relatively mature icing theory: when the temperature and humidity of the air reach certain conditions, icing can be formed, and the wind speed and direction are different. The speed of ice formation is different; when the temperature and humidity meet the conditions, the amount of ice formation depends on the wind speed. When there is no wind or light wind, only very thin ice can be formed. When the wind speed reaches a certain speed, the wire The icing on the wire will accumulate thicker and thicker, and the wire will rotate under the action of the wind to form a flat icing, and finally a jagged icing. At this time, ice flashes, wind whips, and even tower tilts are very likely to occur. Collapse and other accidents

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