Ion spatial electric current density-based direct current transmission line mountain fire monitoring device
A technology of direct current transmission lines and ion currents, which is applied to measuring devices, electric fire alarms, instruments, etc., can solve the problems of high overall cost, reduced ability to identify wild fires with cameras, and decreased detection accuracy, so as to improve the efficiency of wildfires. Recognition ability, ability to avoid wildfire identification, and the effect of improving the reliability of power transmission
A technology of direct current transmission lines and ion currents, which is applied to measuring devices, electric fire alarms, instruments, etc., can solve the problems of high overall cost, reduced ability to identify wild fires with cameras, and decreased detection accuracy, so as to improve the efficiency of wildfires. Recognition ability, ability to avoid wildfire identification, and the effect of improving the reliability of power transmission
CN102750799AActive Publication Date: 2012-10-24CSG EHV POWER TRANSMISSION
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[0022] see figure 1 As shown, a DC transmission line forest fire monitoring device based on space ion current density, including ion current density and environmental parameter monitoring module for DC transmission line to measure ion current density, wind speed and direction, temperature, humidity and atmospheric pressure , for judging whether there is a mountain fire according to the ion current density and environmental parameters. The control center that receives early warning information, controls the status instructions of the ion current density and environmental parameter monitoring modules, and the sound and light alarm instructions. It is used to notify the operating personnel to report to the power dispatcher to decide whether to stop the line or dispatch the line according to the early warning information received by the control center. Sound and light alarm module for maintenance personnel to eliminate hidden dangers
[0023] see figure 2 As shown, the ion curr...
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The invention discloses an ion spatial electric current density-based direct current transmission line mountain fire monitoring device which comprises an ion electric current density and environment parameter monitoring module for measuring ion electric current density, wind speed and wind direction, temperature, humidity and atmospheric pressure of a direct current transmission line, a mountain fire judging and early-warning module for judging whether a mountain fire exists or not according to the ion electric current density and the environment parameter, a communication module for transiting early warning information and receiving status instructions of the ion electric current density and environment parameter monitoring module, a control center for receiving the early warning information from the communication module to control each status instruction and acousto-optic alarm instruction of the ion electric current density and environment parameter monitoring module, and an acousto-optic alarm module for informing operators to report to power dispatching persons whether to stop using the line or dispatch line maintainers to remove hidden danger or not according to the early warning information received by the control center. The device is convenient to use and maintain, can stably monitor the basic environment parameters around the direct current transmission line running in case of high voltage such as wind speed, wind direction, temperature, humidity, atmospheric pressure and the like, computes the ion electric current density nearby measure points according to the basic parameters such as the wind speed and the wind direction, judges the mountain fire nearby the transmission line according to the ion electric current density, transmits the alarm information to the control center by the wireless communication unit, and timely prompts operators on duty by the acousto-optic alarm information which cooperatively controls a master computer.
Description
technical field [0001] The invention relates to the technical field of transmission lines, in particular to a direct current transmission line mountain fire monitoring device based on space ion current density. Background technique [0002] Since 2005, there have been 8 mountain fire failures in the transmission lines maintained by Hubei Power Transmission and Transformation Engineering Company. Mountain fires caused line trips and brought a serious threat to the safe and stable operation of the power grid. In the first quarter of 2010, there were 262 fault trips on 220kV and above lines in China Southern Power Grid, including 113 trips on 500kV lines, accounting for 43.13%; 149 trips on 220kV lines, accounting for 56.87%. There were 128 line trips caused by wildfires, accounting for 4819% of the total line trips, especially the 220kV and above voltage level lines in Guizhou Power Grid on February 28, 2010, which caused 27 trips due to wildfires, accounting for the first. 2...
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Patent Timeline
24 Oct 2012
Publication
CN102750799A
- IPC
- G08B17/06; G08B25/00; G01D21/02
- Inventors
- ้ๅ; ็ๅฅ