Optimization method of real-time correction models in flood forecast system

A technology for real-time correction and flood forecasting, applied to alarms, measuring devices, instruments, etc., can solve the problems of declining forecast accuracy, unstable forecast accuracy during forecasting process, etc., and achieve the effect of improving accuracy

Active Publication Date: 2010-08-04
STATE GRID ELECTRIC POWER RES INST +1
View PDF0 Cites 30 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the existing real-time flood forecasting system faces multiple floods with different characteristics, the forecasting accuracy of the for

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Optimization method of real-time correction models in flood forecast system
  • Optimization method of real-time correction models in flood forecast system
  • Optimization method of real-time correction models in flood forecast system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0028] The optimal method of real-time correction of the flood forecasting system of the present embodiment, such as figure 2 As shown, the specific steps are as follows:

[0029] 1) According to the characteristics of different river basins, configure three existing flood forecasting systems real-time correction mode type , respectively filter solution model , Muskingum matrix solution model and Feedback simulation solution model type ; At the same time, according to the forecast requirements, the flood forecast system is selected from the following four existing flood forecast accuracy evaluation indicators Accuracy Evaluation Index .

[0030] Existing flood forecasting accuracy evaluation indicators generally include: flood peak flow error (the relative error between the predicted flood peak flow and the measured flood peak flow), flood volume error (the relative error between the forecast flood volume and the measured flood volume), and flood peak delay (the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to an optimal selecting method of real-time correction models in a flood forecast system, which belongs to the technical field of flood forecast. The optimal selecting method comprises the following steps of: firstly, configuring at least two existing real-time correction models and selecting a precision evaluating indicator for the flood forecast system; extracting a time period just before the forecast time of the flood forecast system as an attempting forecast time period after system initialization; respectively applying the real-time correction models to the attempting forecast time period for attempting real-time correction forecast so as to obtain attempting real-time correction forecast runoffs; respectively counting the precision evaluating indicators of the attempting real-time correction forecast runoffs, and selecting the real-time correction model corresponding to the attempting real-time correction forecast runoff with the optimal precision evaluating indicator as the optimal real-time correction model. The optimal selecting method adopts multiple kinds of the existing real-time correction models for multiple times of attempting real-time correction forecasts so as to select the optimal real-time correction model applicable to floods in the current valley in the flood forecast system, and thus, the precision of the flood forecast system in actual forecasts is increased.

Description

technical field [0001] The invention relates to a method for optimizing a real-time correction model in a flood forecasting system, belonging to the technical field of flood forecasting. Background technique [0002] In the flood dispatching and power generation dispatching of reservoirs, in order to make fast and accurate analysis and forecast of the ever-changing water regime, a flood forecasting system is generally set up (according to objective hydrological laws and information such as water, rain, and construction conditions to predict future hydrological phenomena predictive system). With the development of modern computer and communication technology, the collection, transmission and processing of water regime information, the calculation and analysis of forecast mathematical model, and the release service of forecast information can be integrated into one, and the real-time forecast technology of control theory is introduced in large quantities In the flood forecast...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G08B21/00G01F1/00
Inventor 李春红王文鹏王建平黄春雷丁杰
Owner STATE GRID ELECTRIC POWER RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap