Fault diagnosis method for three-phase power grid, apparatus, and computer device
US11988701B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2021 |
| Grant date | May 21, 2024 |
| Priority date | — |
| Expiry date | Oct 14, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S10/52
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In the fault diagnosis method, apparatus, and computer device, the method includes acquiring line voltage values in real time according to a voltage collector connected to phase lines (S100); according to the line voltage values and preset system parameters, obtaining a voltage peak balance degree and a phase angle offset of the three-phase power grid (S200); and obtaining a fault diagnosis result according to the voltage peak balance degree and the phase angle offset (S300). In such a way, a real-time diagnosis operation of whether a three-phase power grid is balanced can be implemented only by performing on-line calculation and analysis on line voltage values, which has simple analysis operation to reduce the system complexity; and only a voltage collector is added, and no other hardware costs are required, moreover high diagnosis reliability is obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.