Non-phase-locked-loop rotating vector detection method suitable for power grid voltage distortion and imbalance
A technology of grid voltage and rotation vector, applied in the field of power system, can solve the problems of unbalance, inability to accurately detect sub-harmonic current, and interference of detection results by voltage and frequency offset.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0091] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0092] The invention is applicable to the phase-locked loop-free rotating vector detection method (Rotating Vector Detection, RVD) of grid voltage distortion and unbalance, by analyzing the vector characteristics of the grid voltage and current, and then according to the vector characteristics of the grid voltage and current. Respectively represented by a space vector, since the vertical projection of the vector on the symmetrical three-phase coordinate system is the instantaneous value of each phase variable, then as the instantaneous value of each phase variable changes, the corresponding vector also starts to rotate, so the vector contains All the information of grid voltage and current, including steady-state and transient amplitude, phase sequence, harmonics, etc., the instantaneous value expression of the undistorted and symmetrical posi...
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