Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

A Hybrid Search Method for Multi-objective Optimal Dispatch of Cascade Hydropower Stations Coupling Peak Shaving and Navigation Demand

A multi-objective optimization and hybrid search technology, applied in the field of multi-objective optimal scheduling hybrid search of cascade hydropower stations, can solve problems such as damaging shipping conditions, threatening shipping safety, frequent fluctuations in downstream river water levels, etc., and achieve the effect of improving search and solution efficiency

Active Publication Date: 2015-08-19
DALIAN UNIV OF TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, when hydropower participates in system peak regulation, if there are no effective control measures, it will inevitably cause frequent fluctuations in the water level of the downstream river, seriously damage the shipping conditions, and directly threaten the safety of shipping. Building an anti-regulation power station is an inevitable choice

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
  • A Hybrid Search Method for Multi-objective Optimal Dispatch of Cascade Hydropower Stations Coupling Peak Shaving and Navigation Demand
  • A Hybrid Search Method for Multi-objective Optimal Dispatch of Cascade Hydropower Stations Coupling Peak Shaving and Navigation Demand
  • A Hybrid Search Method for Multi-objective Optimal Dispatch of Cascade Hydropower Stations Coupling Peak Shaving and Navigation Demand

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] The NSGA-II algorithm has been widely used in the field of scientific research and engineering practice due to its multi-objective solution advantages, but it is directly applied to the multi-objective optimal scheduling problem of cascade hydropower station groups in the present invention, and it also needs to deal with a large number of complex time coupling constraints and power station control requirements. This brings great difficulties to the optimization solution, and the difficulties are mainly manifested in the following aspects:

[0030] 1) The group scheduling of hydropower stations needs to consider complex time-coupling constraints such as output ramp limit, output fluctuation control requirements, and minimum duration of start-up and shutdown. Optimizing the quality of results, it is often difficult to obtain a feasible solution in ...

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 the field of comprehensive development and utilization and optimized scheduling of water resources, in particular to a cascade hydropower station multi-object optimal scheduling mixed searching method coupling peak shaving and navigation demands. The function of a navigation counter regulation power station can be fully performed, the peak shaving of a power grid and river channel navigation application requirements are taken into account, and a cascade operation plan which is practical and more reasonable in scheduling is obtained. According to the technical scheme, the minimum of the maximum value of the redundant loads of the power grid and the minimum of the variance of the counter regulation power station downstream river channel water level process are adopted as objects, in the NSGA-II searching process, for the complex constrains of the climbing upper limit, the output fluctuation control limit, the machine starting and shutting down minimum lasting time, the term end water level control and the like, time coupling constraint handling strategies, end water level correction strategies and improved genetic manipulation operators are put forward, so that the searching and solving efficiency of the method can be improved, a calculating result meeting engineering application request is obtained, and the method is suitable for being adopted and popularized in the scheduling operation of a cascade hydropower station with navigation requests.

Description

technical field [0001] The invention relates to the field of comprehensive development and utilization of water resources and optimal dispatching, in particular to a hybrid search method for multi-objective optimal dispatching of cascade hydropower stations coupled with peak regulation and navigation demands. technical background [0002] Large rivers in my country generally face comprehensive utilization requirements such as power generation, flood control, navigation, and ecology. These goals usually conflict with each other, especially for cascade hydropower stations that require navigation and peak regulation. The contradiction between the two is even more acute. On the one hand, my country's power grid generally has huge peak-shaving pressure. With the large-scale grid connection of intermittent new energy sources such as wind power and photovoltaic power, this pressure continues unabated, requiring high-quality hydropower to undertake more peak-shaving responsibilities....

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
Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/00
Inventor 程春田牛文静申建建武新宇
Owner DALIAN UNIV OF TECH
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
Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com