Supertension line fault phase selection method based on voltage fault component
A line fault and voltage fault technology, applied in the field of high-voltage power grid, can solve the problems of complex algorithm and large amount of calculation, and achieve the effect of reducing the amount of calculation, simple equation of state, and good filtering effect.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0024] Such as figure 1 Shown is a schematic diagram of the structure of the EHV transmission system. Refer to the Beijing-Tianjin-Tangshan 500kV ultra-high voltage transmission line parameters.
[0025] Such as figure 2 As shown, the flow chart of the implementation of fault phase selection. The sampling value is filtered by Kalman to obtain the fundamental frequency component of the voltage, and then the identification coefficient of each fault phase is calculated. According to the characteristics of the coefficient in different fault conditions, the purpose of phase selection is achieved.
[0026] Step 1: By establishing a Kalman filter model, the purpose of extracting the fundamental frequency voltage component is achieved, and the influence of harmonics on the phase selection algorithm is reduced.
[0027] The harmonic components considered by the present invention are 2-5 harmonics, and the state transition matrix of the Kalman filter model used is a 10th order squar...
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