快速批量验证中性点不接地系统电网相位正确性的方法和系统
By using a phase verification method for neutral-point ungrounded power grids that involves real-time monitoring and automated processing, combined with a reference library and zero-sequence voltage verification, the problems of low efficiency and data errors in existing technologies are solved, enabling fast and reliable phase verification and reference library updates.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- YIBIN POWER SUPPLY COMPANY STATE GRID SICHUAN ELECTRIC POWER
- Filing Date
- 2026-05-06
- Publication Date
- 2026-07-17
AI Technical Summary
In ungrounded neutral systems, existing phase verification methods are inefficient, costly, and lack automated processing mechanisms. They are prone to data errors entering the reference database due to zero-sequence voltage anomalies, affecting power grid safety. Furthermore, the lack of a closed-loop process leads to insufficient data utilization.
By monitoring the grid bus voltage in real time, the phase verification process is automatically triggered, three-phase and zero-sequence voltage data are collected, and automatic comparison and manual confirmation are performed using the reference bus voltage library. Zero-sequence voltage verification is introduced, and a multi-dimensional verification and manual closed-loop processing mechanism is designed to ensure accurate data entry into the library.
It enables automated and highly reliable rapid batch verification of the phase of a neutral-point ungrounded system grid, prevents erroneous data from polluting the benchmark library, ensures grid safety, and continuously accumulates verification capabilities.
Smart Images
Figure CN122150751B_ABST