A method for maximizing and reducing peak-to-valley difference in coordination between electric heat storage load and battery energy storage

A technology of battery energy storage and electric heat storage, which is applied in the field of power grid, can solve the problems of large fluctuations and intensified peak-shaving capacity of traditional thermal power units, so as to reduce the peak-to-valley difference, reduce the peak-to-valley difference, and reduce the peak-shaving pressure Effect

Active Publication Date: 2022-05-10
STATE GRID LIAONING ELECTRIC POWER RES INST +2
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] It can be seen from the load data of the power grid throughout the day that the power consumption of the power grid load fluctuates greatly within a day, which intensifies the peak-shaving capacity of traditional thermal power units

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 method for maximizing and reducing peak-to-valley difference in coordination between electric heat storage load and battery energy storage
  • A method for maximizing and reducing peak-to-valley difference in coordination between electric heat storage load and battery energy storage
  • A method for maximizing and reducing peak-to-valley difference in coordination between electric heat storage load and battery energy storage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0162] The current temperature in a certain regional power grid is c j = 35 degrees Celsius; air relative humidity H j = 46%; the altitude value of the battery energy storage area h = 867m; the weather state correlation coefficient value is based on experience k r = 1.0147; k c =0.9915; material thermal conductivity ε of energy storage battery r =4.172W; battery energy storage temperature T B =27℃; battery capacity C r =10MW; battery charging efficiency η Ii =97.77%; battery discharge efficiency η Oi =98.79%; battery charging rate V BIi =2.3C / h; battery charging rate V BOi =2.1C / h; the sum of rated power of all power stations Q a =198MW; peak load Q yj =176MW; electricity load Q in low valley hours yd =69MW; average light intensity G=1043W / h; wind speed F=1.2m / s, electric heat storage load capacity in the grid is 47MW.

[0163] Step 1: Calculate the load capacity Q of electric heat storage load at the peak time according to the weather conditions 1 . Where lne=1, ...

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 belongs to the technical field of power grids, and in particular relates to a method for coordinating and maximizing the electric heat storage load and battery energy storage to reduce the peak-valley difference, which is to reduce the peak-valley difference of the power grid to the greatest extent through the coordinated operation of the electric heat storage load and battery energy storage Difference. The present invention includes data acquisition; forecast calculation of household load during peak hours; calculation of the influence of electricity price A on the increase of electric heat storage load at low valley times; calculation of battery energy storage charge and discharge coefficient; calculation of battery charge and discharge time; according to the above influencing factors and At peak and trough moments, it is calculated by minimizing the peak-to-valley difference. The invention can alleviate the peak regulation pressure of the unit, and can relieve the output of the thermal power unit at the peak time, so that the peak regulation pressure of the thermal power unit is reduced. It is possible to formulate corresponding electricity prices based on the difference in electricity consumption in different periods, and through the cooperation of batteries to cut peaks and add valleys, the difference between peaks and valleys can be minimized.

Description

technical field [0001] The invention belongs to the technical field of power grids, and in particular relates to a method for coordinating and maximizing the peak-to-valley difference between electric heat storage load and battery energy storage. Valley difference. Background technique [0002] It can be seen from the load data of the power grid throughout the day that the power consumption of the power grid load fluctuates greatly within a day, which intensifies the peak-shaving capacity of traditional thermal power units. Contents of the invention [0003] Aiming at the deficiencies in the above-mentioned prior art, the present invention proposes a method for coordinating and maximizing the electric heat storage load and battery energy storage to reduce the peak-to-valley difference. The purpose of the invention of peak shaving pressure. [0004] The technical solution adopted by the present invention to solve its technical problems is: [0005] The method of coordina...

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): H02J3/28H02J3/32
CPCH02J3/28H02J3/32H02J3/003
Inventor 王顺江张明悦张宏宇邵宝珠曹丽娜高潇吕旭明金研周小明张铁岩王澎王志斌张忠林周桂平丛海洋罗桓桓丛培贤葛维春葛延峰李家珏刘前卫
Owner STATE GRID LIAONING 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