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

Method for judging DC side impedance stability of flexible DC transmission system

A technology of power transmission system and flexible DC, applied in the direction of AC network circuits, electrical components, circuit devices, etc., can solve the problem of inaccurate determination of DC system stability, and achieve the effect of simple determination method.

Active Publication Date: 2019-10-01
SICHUAN UNIV
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above-mentioned deficiencies in the prior art, a method for judging the stability of the DC side impedance of the flexible DC power transmission system provided by the present invention solves the problem of inaccurate judgment of the stability of the DC system

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
  • Method for judging DC side impedance stability of flexible DC transmission system
  • Method for judging DC side impedance stability of flexible DC transmission system
  • Method for judging DC side impedance stability of flexible DC transmission system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0034] Such as figure 1 A two-terminal DC system is shown. When modeling the DC side impedance of the DC system, it is necessary to model the converter station A and the converter station B respectively. The modeling process is the same for different types of converter stations. That is, when modeling the converter station, it is necessary to separate the capacitance of the converter station from the converter station, su...

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 method for judging the DC side impedance stability of a flexible DC transmission system. By using the method, a sufficiently accurate DC side impedance model of a flexible DCconverter station can be quickly and effectively established, and the DC side impedance stability of a flexible DC transmission system can be accurately judged according to the model. The DC side impedance model of the invention is simple and clear compared with the traditional impedance model, and the impedance stability judgment mode is simple, which create conditions for the fast stability analysis of the flexible DC system.

Description

technical field [0001] The invention relates to the technical field of flexible direct current transmission systems, in particular to a method for judging the stability of DC side impedance of a flexible direct current transmission system. Background technique [0002] The flexible direct current transmission system based on the voltage source converter station develops rapidly, which effectively promotes the development and utilization of new energy. However, the coupling effect between the capacitive voltage source converter station and the inductive transmission system of the flexible DC system may cause the instability of the DC system. After the short-circuit current is limited by the inductor in the flexible DC system, the possibility of instability will increase. The converter station structure and control system of the flexible DC system are complex. How to quickly and effectively establish a sufficiently accurate DC side impedance model to analyze the stability 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): H02J3/36
CPCH02J3/36H02J2203/20Y02E60/60
Inventor 王顺亮舒稷刘天琪马俊鹏李保宏
Owner SICHUAN UNIV
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