Extra-high voltage direct current transmission line boundary element forming method based on support vector machine
An ultra-high voltage DC, support vector machine technology, applied in the direction of DC network circuit devices, electrical components, computer systems based on knowledge-based models, etc., can solve problems such as difficulty in determining the threshold value
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0079] Simulation model such as figure 1 As shown, a positive ground fault occurs at a distance of 100km from the protection installation, the fault transition resistance is 0.1Ω, the time window length is 2ms, and the sampling frequency is 100kHz.
[0080] (1) After the DC line fails, the starting element starts immediately, according to the formula:
[0081] P 1 (k)=Z p × i 1 (k)-u 1 (k) (10)
[0082] P 2 (k)=Z p × i 2 (k)-u 2 (k) (11)
[0083] Calculate the polar wave voltage, the polar wave waveform is shown in Figure (6); where, u 1 (k) is the positive DC voltage, i 1 (k) is positive direct current, u 2 (k) is the negative DC voltage, i 2 (k) is the negative DC current, k=1, 2, 3...N, N is the length of the sampling sequence, Z p is the polar wave impedance of the DC transmission line;
[0084] (2) According to the formula
[0085] S [ m , n ] = Σ ...
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