A parallel state estimation method for integrated transmission and distribution

A state estimation, transmission and distribution technology, applied in the direction of AC network circuits, electrical components, circuit devices, etc., can solve the problem of discounting the acceleration effect, and achieve the effect of improving the acceleration ratio, good stability, and high calculation accuracy

Active Publication Date: 2019-01-25
TONGJI UNIV
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the node splitting method or the branch splitting method, this kind of method has higher and faster convergence accuracy and convergence speed; but because of the need for additional equivalent calculations, the acceleration effect of the calculation is also higher. give a certain discount

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 parallel state estimation method for integrated transmission and distribution
  • A parallel state estimation method for integrated transmission and distribution
  • A parallel state estimation method for integrated transmission and distribution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0066] The IEEE 118 transmission network system (referred to as island 1) and three unlooped IEEE 123 three-phase load asymmetric distribution network systems (referred to as island 2, island 3 and island 4) are connected to form an integrated transmission and distribution grid. The measurement of the transmission network adopts a complete configuration. The measurement of the distribution network includes the measurement of the three-phase voltage amplitude of the root node and the three-phase injected power of each node. The measurement adds random errors on the basis of the calculation results of the three-phase power flow. The standard of random errors The difference is taken as 1% of the measured value, the state estimation convergence accuracy is 0.001, and 4 threads are created, and each island from island 1 to island 4 has a different thread exclusively.

[0067] Table 1 and Table 2 have listed the precision and the time that adopt non-parallel state estimation computat...

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 an integrated transmission and distribution parallel state estimation method, comprising the following steps: 1) establishing a practical model of integrated transmission anddistribution state estimation based on an accelerated distributed augmented Lagrange algorithm; 2) realizing the information exchange between the transmission network and the distribution network according to the interaction strategy; Compared with the prior art, the present invention has the advantages of high calculation accuracy, stable convergence speed, fast parallel calculation speed, guaranteed convergence and wide application prospect, and the like.

Description

technical field [0001] The invention relates to the technical field of power system state estimation, in particular to a parallel state estimation method for transmission and distribution integration based on accelerated distributed augmented Lagrangian algorithm. Background technique [0002] Due to the increasing scale of UHV transmission and renewable energy power generation grid connection, the connection between transmission and distribution networks is getting closer and closer. At present, most of them are operated and managed separately, or simply only analyze and control the transmission network. Distribution network It is completely passive cooperation and obedience, which in a certain sense is not suitable for the current distribution network operation mode; correspondingly, the research and implementation of transmission and distribution integration are getting more and more attention from researchers and some power companies. Due to the wide coverage of the netw...

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): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 林济铿刘阳升袁恺明
Owner TONGJI UNIV
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