Hydropower station drainage basin dividing and face rainfall monitoring method based on GIS

Abstract

The invention discloses a hydropower station drainage basin dividing and face rainfall monitoring method based on a GIS. The GIS is used for finely dividing a hydropower station drainage basin, a monitoring zone is determined, an automatic meteorological station is used for obtaining real-time rainfall information, face rainfall of divided drainage basins is monitored in real time and issued online through the network, and important references for decisions are provided for carrying out short-period stair zone flow forecasting, stair hydroelectric optimal operation and adding of the hydroelectric power quantity of a plant grid. The flow of hydropower stations of all levels and the hydropower outputting information are used for achieving the function of comparing and analyzing the difference between the flow into a reservoir and the flow out of the reservoir in a hydropower station zone, directly-called hydropower outputting and inter-zone face rainfall. The function of comprehensively comparing and analyzing the hourly rainfall, the temperature documents and electrical loads of all grid zones is achieved by combining with real-time weather and information on the electrical loads of automatic meteorological stations belonging to administrations of power supply of all prefectural regions. Favorable analysis manners are provided for work such as hydroelectric generating change trend analysis, grid zone load forecasting, grid operation disaster preventing and reducing and a good application prospect is obtained.

Description

technical field [0001] The invention relates to the technical field of areal rainfall monitoring in hydropower station basins, in particular to a GIS-based hydropower station basin zoning and areal rainfall monitoring method. Background technique [0002] The reliable supply of power production is the primary support for social and economic development. Over the years, power production, especially hydropower production, has been more and more affected by meteorology and the environment. Making good use of rainwater resources to increase hydropower generation is an important task for hydropower economic dispatch. [0003] The actual application of traditional meteorological forecasts in hydropower dispatching and power grid production and operation is seriously insufficient, lacking forecasting and planning, and hydropower production often falls into a passive response situation. Some hydropower stations have self-built rainfall automatic telemetering stations in the reservoir...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the serious shortage of traditional meteorological forecast in the prior art in the actual application of hydropower dispatching and power grid production and operation, lack of prediction and planning, hydropower production often falls into a passive response situation, the present invention's GIS-based hydropower station basin zoning and Area rainfall monitoring method, using GIS to divide the watershed of hydropower stations, determine the area rainfall monitoring range, conduct real-time monitoring and online network release of area rainfall in sub-basins, carry out short-term cascade hydropower dispatching, increase hydropower generation, and network area load forecasting for the plant network It provides a favorable analysis method for the analysis of power generation change trend of hydropower stations, disaster prevention and mitigation of power grid operation, etc., and has a good application prospect

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