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

Fast transient stability analysis method based on adaptive integration steps

A transient stability analysis and rapid analysis technology, applied in data processing applications, instruments, resources, etc., to achieve the effect of small calculation increments

Inactive Publication Date: 2018-07-10
NARI TECH CO LTD
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing calculation example screening methods reduce the calculation cost to a certain extent under the premise of retaining the detailed simulation of serious faults

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
  • Fast transient stability analysis method based on adaptive integration steps
  • Fast transient stability analysis method based on adaptive integration steps
  • Fast transient stability analysis method based on adaptive integration steps

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] An embodiment of the present invention discloses a fast transient stability analysis method based on adaptive integration steps, the basic principles of which are as follows:

[0038] Increasing the number of integration steps is an effective way to take into account more time-varying factors of the research example, thereby improving the analysis accuracy, and it is also the only way for the performance of the DEEAC(2) algorithm to further exert its bridge effect. If the number of integration steps is increased blindly on the basis of the DEEAC(2) algorithm, it is likely to cause a waste of part of the calculation due to the lack of support from the stability mechanism; the appropriate method is based on the time-varying factors in the entire transient process. According to the distribution law, the appropriate number of integration steps can be increased in a targeted manner for a specific temporary stable stage.

[0039] Further research shows that no matter for thre...

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 discloses a fast transient stability analysis method based on adaptive integration steps, and belongs to the field of power systems and automation technologies thereof. The method of theinvention is based on an extended equal-area criterion, deeply explores different margin information contained in each fast transient stability analysis algorithm with different integration steps anda comparison result thereof to reflect the time-varying degree of a research example, and further determines whether to increase a small number of integration steps according to the strong or weak time-varying degree to improve the analysis accuracy. The method of the invention can automatically match the appropriate integration steps for each example according to the strong or weak time-varyingdegree thereof; and improves, as compared with the original fast transient stability analysis method based on fixed few integration steps, the analysis accuracy of the example of a strong time-varyingdegree at the cost of a small calculation increment under the premise of maintaining the analysis accuracy of the example of a weak time-varying degree, further coordinates the accuracy and rate of the online transient stability analysis, solves the transient stability analysis problem considering uncertainties, and has significant theoretical and engineering significance.

Description

technical field [0001] The invention belongs to the technical field of electric power systems and automation thereof, and in particular relates to a fast transient stability analysis method based on the number of adaptive integration steps. Background technique [0002] The power system transient stability (abbreviation: transient stability) analysis and quantification algorithm has experienced the development process from assumption-based to trajectory-based, focusing on the robust adaptation of various complex models and the rapid extraction of high-precision transient stability information. With the gradual advancement of UHV and smart grid construction, the types and numbers of power components continue to increase, which puts forward more stringent requirements for transient stability analysis performance. [0003] Numerical calculation is the basis of quantitative analysis. The commonly used technique is the implicit trapezoidal integration method. The analysis accurac...

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): G06Q10/06G06Q50/06
CPCG06Q10/0639G06Q50/06
Inventor 薛禹胜黄天罡薛峰
Owner NARI TECH 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