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A macroscopic prediction method of rainfall runoff power in a watershed based on representative power stations

A technology of rainfall runoff and prediction method, which is applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as the inability to quickly predict the runoff process and total electricity, complex interaction logic, and large amount of input information. Effectiveness of production, improvement of forecasting efficiency, and reduction of calculation amount

Active Publication Date: 2018-04-24
NANJING NARI GROUP CORP +1
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AI Technical Summary

Problems solved by technology

This method is highly professional, with many operation steps, a large amount of input information, and complex interaction logic.
For forecasting the rainfall process in a certain watershed in the future, when there are many power stations in the watershed, it is impossible to quickly predict the runoff process and total electricity directly generated by the rainfall in the whole watershed

Method used

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  • A macroscopic prediction method of rainfall runoff power in a watershed based on representative power stations
  • A macroscopic prediction method of rainfall runoff power in a watershed based on representative power stations
  • A macroscopic prediction method of rainfall runoff power in a watershed based on representative power stations

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0026] by figure 2 As an example, the watershed is a group of cascade hydropower stations, A1~A3 are the cascades of the main stream, and B1~b4 and C1~c3 are the cascades of the two tributaries.

[0027] According to the principle of whether there is a rainfall center in the reservoir area, the tributary flows into the reservoir area, the annual average flow base of the dam site is large or changes greatly, the reservoir regulation performance is good, and the installed capacity of the power station is large. effective) to screen out 6 representative power stations A1, A2, A3, B1, B2, and C1, and their generalized topological relationships are shown in image 3 .

[0028] According to the me...

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Abstract

The present invention discloses a representative power station based basin rainfall runoff power macro-forecasting method. The method is characterized by comprising the following steps: selecting a key-controlled power plant within a basin as a representative power station, and reducing actual interactive objects; taking history similarity analysis to replace a traditional forecasting model, realizing runoff forecast of the representative power station, and simplifying forecast logic; and establishing runoff and generating capacity conversion relationship between each non-representative power station and the corresponding representative power station, and by measuring runoff and power of each representative power station, realizing rapid macro-forecasting of the entire basin rainfall runoff power. The method disclosed by the present invention achieves beneficial effects of: reducing actually involved interactive station objects, weakening professional theory requirements, simplifying interactive information and forecast process, reducing calculation amount, achieving ''one-click'' forecasting, and greatly improving the forecast efficiency of the entire basin rainfall runoff power, thereby ensuring wider production practicality.

Description

technical field [0001] The invention relates to a method for forecasting electricity in a watershed, in particular to a method for macroscopic forecasting of rainfall runoff electricity in a watershed based on a representative power station Background technique [0002] The medium-term runoff forecast needs to use the previous and current hydrological and meteorological information and rainfall forecast results of the basin to forecast the daily runoff process of the reservoir in the next few days. Due to the comprehensive influence of the rainfall weather system and the underlying surface system of the watershed, the daily runoff process of the reservoir is nonlinear, strongly correlated, highly complex, and changes in multiple time scales. There are many uncertain factors, the forecast model is complex, and accurate forecasting is difficult. The traditional cascade total power forecast of the basin needs to first use the rainfall runoff forecasting model to predict the inf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 赵宇李春红谢小燕陈建王建平
Owner NANJING NARI GROUP CORP
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