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

Electric power system transient stability analysis method

A technique for transient stability analysis, power systems, applied in the field of nonlinear optimization

Pending Publication Date: 2017-12-29
STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +2
View PDF2 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to improve the conservatism problem caused by the approximate processing of the path-related integral term when constructing the traditional power system transient energy function

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 power system transient stability analysis method
  • Electric power system transient stability analysis method
  • Electric power system transient stability analysis method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0059] Such as figure 1 , figure 2 As shown, the present invention discloses a transient stability analysis method based on a power system, which uses SMR technology to improve the transient energy function method. The power system transient stability analysis methods mainly include time domain simulation method and direct method, and the transient energy function method belongs to the direct method. The transient energy function method model is relatively simple, can take into account nonlinear problems, can avoid complex numerical integration operations, has a fast calculation speed, and can also provide system stability margin indicators, but due to model accuracy, critical point selectivity and linear path Due to the limitations of the assumptions, the traditional transient energy function has always had the problem of conservatism. The improved transient energy function method based on the SMR (Squared Matrix Representation) technology proposed by the present invention...

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 present invention discloses an electric power system transient stability analysis method. The electric power system transient stability analysis method mainly comprises a time domain simulation method and a direct method. A transient energy function method belongs to the direct method. The transient energy function method model is simple, considers the non-linear problem, can avoid complex numerical integration operation, is fast in computing speed and can provide system stability margin indexes, and the restriction of the model precision, critical point selectivity and linearity path hypothesis allows a traditional transient energy function to always have the conservation problem. The improved transient energy function method based on the SMR (Squared Matrix Representation) technology introduces the SMR technology to improve the transient energy function analysis method, a superposition program is employed to obtain the optimal Lyapunov function so as to improve the problem of a traditional transient energy function conservation.

Description

technical field [0001] The invention relates to an improved transient energy function method based on SMR technology, which belongs to the fields of transient stability analysis, transient energy function research and nonlinear optimization of power systems. Background technique [0002] The interconnection of power systems forms an interconnected power system, which can bring significant technical and economic benefits. However, the larger the scale of the power system, the more interconnected parts, and the failure of any one of the components may cause the accident to expand. If the power grid structure is not strong enough, or the safety automatic devices are not sound enough, or the management is improper, the system may fall into a stability crisis, causing system stability damage or even large-scale power outages, or even the collapse of the entire network. Therefore, the operation and planning of large-scale power systems both at home and abroad put the stability an...

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): H02J3/00G06F19/00
CPCH02J3/00G16Z99/00
Inventor 汪成根杨阳卜京张梦月王俊周前张宁宇胡昊明
Owner STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST
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