Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Impedance frequency eqmivalent value novel method for designing AC filter

An impedance frequency, equivalent method technology, applied in the value field, can solve the problem that the real situation of the system cannot be completely and accurately reflected, the generator, transformer, line resistance parameters are not considered, and the impedance frequency model is not considered.

Inactive Publication Date: 2008-10-08
国网直流工程建设有限公司
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the harmonic impedance equivalent work of cross-regional DC transmission projects does not consider the impedance frequency model of electrical components such as generators, transformers, lines, and input filter components of other nearby converter stations, nor does it consider generators, The resistance parameters of transformers and lines, therefore, the equivalent results cannot completely and accurately reflect the real situation of the system, and the impedance angle and impedance amplitude in the impedance sector diagram are large

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
  • Impedance frequency eqmivalent value novel method for designing AC filter
  • Impedance frequency eqmivalent value novel method for designing AC filter
  • Impedance frequency eqmivalent value novel method for designing AC filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] Establish the impedance frequency model of electrical components such as generators, transformers, and lines, and input filter element parameters of other nearby converter stations, and determine various parameters; add resistance parameters of generators, transformers, and lines, and take them according to the recommended reactance value percentage value; add the line skin effect coefficient to reflect the line parameters at high frequencies; partition the harmonic impedance sector diagram to reduce the impedance area.

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

An impedance frequency equivalence new method for designing alternating current filter for establishing a generator, a transformer, lines or the like electric elements, impedance frequency models of filter element parameters plunged by neighbouring other converter station, but the parameters are simplied in power system routine calculation, each impedance frequency model are established based on diffferent characteristics of the nodes, the generator, the transformer, the lines, filters or the like electric elements, resistance parameters of the generator, the transformer and the lines are added for determining to be used for alternating current-direct current system operating mode of the harmonic impedance equivalence calculation and to perform statistical sectorization for the equivalence result by the harmonic impedance equivalence. The abstract figure is an impedance fan diagram performing harmonic impedance equivalence sectorization with the new method.

Description

technical field [0001] The invention relates to harmonic impedance equivalents for filter design of HVDC converter stations. Background technique [0002] At present, the harmonic impedance equivalent work of cross-regional DC transmission projects does not consider the impedance frequency model of electrical components such as generators, transformers, lines, and input filter components of other nearby converter stations, nor does it consider generators, The resistance parameters of transformers and lines, therefore, the equivalent results cannot fully and accurately reflect the real situation of the system, and the impedance angle and impedance amplitude in the impedance sector diagram are relatively large. [0003] The model parameters of each electrical component in the power system directly affect the harmonic impedance equivalent results, and the complete impedance frequency model can better reflect the high-frequency impedance change. Partitioning the impedance of ea...

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): H02J3/01
CPCY02E40/40
Inventor 常浩殷威扬杨志栋李亚男刘宝宏樊纪超
Owner 国网直流工程建设有限公司
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
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