A visual monitoring method for low frequency oscillation of power grid based on s-transform
A low-frequency oscillation and power grid technology, applied in the measurement of electricity, measurement devices, and measurement of electrical variables, etc., can solve the problem that it is difficult for dispatchers to quickly analyze the oscillation pattern from the oscillation waveform, unable to judge the number of oscillation modes, and difficult to determine the dominant oscillation mode. frequency etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0065] The visual monitoring method for low-frequency oscillation of the power grid of the present invention is applied in Guangdong Power Grid Corporation, and the specific implementation process is as follows figure 1 shown.
[0066] The implementation case analysis is carried out in combination with the measured data of the low-frequency oscillation event that occurs in a certain line of the Guangdong Power Grid Company. The steps of the embodiment of the present invention are as follows:
[0067] S1) Collect PMU active power data in real time
[0068] The PMU collects data every 20ms, marks it with a time stamp and uploads it to the dispatch center. The historical data of the active power measured by the PMU are as follows: figure 2 Take the data window with a length of 20.46s and move forward Δt=20ms every 20ms; the change of the PMU data window with the passage of time is shown in Figure 3, the sampling time interval T=0.02s, and the number of sampling points N=1024; ...
PUM

Abstract
Description
Claims
Application Information

- R&D
- Intellectual Property
- Life Sciences
- Materials
- Tech Scout
- Unparalleled Data Quality
- Higher Quality Content
- 60% Fewer Hallucinations
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com