Adaptive arc suppression method for ground faults in a combined active and passive distribution network
US12348036B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2024 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | Nov 13, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This application presents an adaptive arc suppression method for ground faults in distribution networks, merging active and passive relay protection strategies. The method proceeds as follows: based on collected ground parameters, the fault phase is identified; compensation current is calculated from the fault's electromotive force, ground leakage resistance, and ground capacitance; current is injected at the neutral point according to the compensation current; finally, the arc suppression scheme is executed based on the zero-sequence voltage of the network's busbars. This approach incorporates both voltage- and current-based methods, addressing the limitation of fixed operation scenarios in traditional arc suppression methods. By quickly adapting to various fault situations, this method ensures an efficient and prompt response tailored to specific scenario requirements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.