Pilot protection method for direct current line current abrupt change of multi-terminal direct current transmission system
A technology of direct current transmission system and current sudden change, which is applied in the direction of emergency protection circuit devices and electrical components, etc. It can solve the problems of the reliability of DC line protection, the outage of DC transmission system, and the low reliability, etc., and achieve low sampling rate , Strong signal energy, fast detection effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0020] see figure 1 As shown, the sign of the current mutation at the end of the line is the same when the fault occurs in the multi-branch line area, and the sign of the current mutation at both ends of the line is opposite to the fault characteristics when the fault is outside the area. By detecting the current mutation sign and Size to distinguish faults inside and outside the partition. The method of the invention uses all the energy information in the fault transient state instead of the high-frequency signal, the signal energy is strong, and the protection is safe and reliable.
[0021] The DC line current sudden change longitudinal protection method of the multi-terminal DC transmission system of the present invention is based on the fault characteristics of the DC transmission line transient current sudden change, and specifically includes the follow...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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