Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Electric network load regulation reserve capacity assessment method based on frequency deviation probability distribution

A technology of reserve capacity and probability distribution, applied in circuit devices, AC network circuits, data processing applications, etc., can solve the problem that the generator set cannot balance the load in real time, the influence of the load reserve capacity is increasing, the load and the active power output of the unit Deviation and other issues to achieve universal and practical effects

Inactive Publication Date: 2017-09-05
GRID POWER PLANNING & RES CENT OF GUANGDONG GRID POWER CO LTD +2
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of the power grid and the improvement of power technology, the traditional method of calculating load reserve capacity based on the percentage of power generation load can no longer meet the needs of power system analysis. Uncertainty of real-time load, resulting in load fluctuations has an increasing impact on the selection of power system load reserve capacity
[0003] In actual operation, the load of the power system fluctuates rapidly in real time, but it takes a certain amount of time to change the output of the generator set, and the generator set cannot balance the load in real time, which causes an active power deviation between the load and the output of the unit, resulting in system failure. Frequency offset nominal 50Hz

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
  • Electric network load regulation reserve capacity assessment method based on frequency deviation probability distribution
  • Electric network load regulation reserve capacity assessment method based on frequency deviation probability distribution
  • Electric network load regulation reserve capacity assessment method based on frequency deviation probability distribution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] The accompanying drawings are for illustrative purposes only, and should not be construed as limitations on this patent; in order to better illustrate this embodiment, certain components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art It is understandable that some well-known structures and descriptions thereof may be omitted in the drawings. The positional relationship described in the drawings is for illustrative purposes only, and should not be construed as a limitation on this patent.

[0051] Such as figure 1 As shown, a large power grid load backup adjustment backup capacity evaluation method based on frequency offset probability distribution includes the following steps:

[0052] Step S1: In the actual power grid operation, the unit output and load cannot be equal at all times, and there will always be active power deviation between the two, which will cause the sy...

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 provides a frequency deviation probability distribution based regulation reserve capacity assessment method based on power deviation caused by the fact that the regulation reserve capacity of a system responds to load fluctuation and used for accessing the load reserve capacity of balance load fluctuation. The method comprises the following steps that active power deviation caused by unit power output and load fluctuation causes a frequency deviation rated value of the system, and the regulation reserve capacity assessment method is established based on the frequency deviation probability distribution; the frequency deviation value of the system is produced through load fluctuation, and the active power deviation value of the system is obtained according to the comprehensive frequency characteristics of the power system.

Description

technical field [0001] The invention relates to the field of power grid reserve capacity, in particular to a large power grid load regulation reserve capacity evaluation method based on frequency offset probability distribution. Background technique [0002] With the continuous development of the power grid and the improvement of power technology, the traditional method of calculating load reserve capacity based on the percentage of power generation load can no longer meet the needs of power system analysis. Uncertain real-time load, resulting in load fluctuations, has a greater impact on the selection of power system load reserve capacity. [0003] In actual operation, the load of the power system fluctuates rapidly in real time, but it takes a certain amount of time to change the output of the generator set, and the generator set cannot balance the load in real time, which causes an active power deviation between the load and the output of the unit, resulting in system fai...

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 Applications(China)
IPC IPC(8): H02J3/46H02J3/24G06Q10/04G06Q50/06
CPCH02J3/24H02J3/46G06Q10/04G06Q50/06H02J2203/20
Inventor 郑秀波覃芸林勇别朝红
Owner GRID POWER PLANNING & RES CENT OF GUANGDONG GRID POWER CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap 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