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

Controllable serial capacitor optimal configuration method capable of improving available transmission capacity

A technology of series capacitors and optimal configuration, which is applied in the field of power systems, can solve problems such as large amount of calculation, and achieve the effect of satisfactory calculation accuracy and fast calculation speed

Active Publication Date: 2010-11-10
NORTHEAST DIANLI UNIVERSITY +2
View PDF1 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can accurately calculate the installation position and compensation degree of TCSC, the amount of calculation is too large, and it is difficult to apply it to the actual system with many buses and branches.

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
  • Controllable serial capacitor optimal configuration method capable of improving available transmission capacity
  • Controllable serial capacitor optimal configuration method capable of improving available transmission capacity
  • Controllable serial capacitor optimal configuration method capable of improving available transmission capacity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] The present invention will be further described below using the drawings and examples.

[0056] Such as figure 1 , the TCSC is regarded as a variable reactance connected in series in the transmission line, and its capacity is related to the reactance of the line where it is located. Assuming that TCSC is installed on the branch i-j, when the ground admittance B is small, the compensation reactance X TCSC with branch impedance Z ij Superimposed, that is:

[0057] X ij ′ = X ij + X TCSC X TCSC = - c X ij

[0058] In the formula, X ij , X′ ij i...

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 controllable serial capacitor optimal configuration method capable of improving available transmission capacity, which is characterized in that: the position variables and compensation degrees of TCSCs serve as antibody genes to be coded, initial data are input to generate initial populations randomly, and the initial populations are divided into an open crossover and mutation rates are set for the populations of each group, each group of populations are optimized by an immune algorithm, the affinity between each antibody and an antigen in each population in each group is calculated, and clonal selection, clonal amplification, crossover and variable immunity are performed; at the end of the evolution of each generation, a communicating operator is used to allow the populations to interexchange part of antibodies and the affinity is calculated; after the evolution of a plurality of generations, the currently optimal antibodies are distributed into all populations by a transmission operator; and after all populations evolve for one time, if an algorithm meets convergence conditions is judged, and optimal results are output if the algorithm meets the convergence conditions, or immune supplementation is performed and evolution circulation is returned to if the algorithm does not meet the convergence conditions. The method can solve the optimal configuration problem of the plurality of TCSCs.

Description

technical field [0001] The invention belongs to the technical field of power systems, and in particular relates to an optimal allocation method of controllable series capacitors for improving available power transmission capacity. Background technique [0002] Available transmission capacity ATC (Available transfer capability) refers to the remaining transmission capacity in the actual physical network that can be used for commercial use on the basis of the existing transmission contract. Thyristor Controlled Series Capacitor TCSC (Thyristor Controlled Series Capacitor) can compensate part of the inductive impedance of the transmission line, control the power flow distribution, improve the stability of the system operation, increase the transmission capacity of the line, and enhance the actual transmission capacity of the network. [0003] The effectiveness of TCSCs in increasing transmission capacity depends largely on the installation location and compensation capacity of ...

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): H02J3/18
CPCY02E40/14Y02E40/10
Inventor 李国庆王振浩张健辛业春陈厚合王鹤王利猛李江
Owner NORTHEAST DIANLI UNIVERSITY
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