Voltage stability monitoring device and method
US10473700B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2015 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | Jul 13, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J13/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A voltage stability monitoring device, which monitors voltage stability of a power system, produces a plurality of assumed change scenarios indicating a scenario of a change that is assumed based on at least one of a system configuration of the power system and a change of a tide state, calculates the voltage stability using the assumed change scenario, calculates a voltage stability margin indicating margin degree of the voltage stability, based on the voltage stability selects an assumed change scenario with high severity of the voltage stability for each assumed change scenario, based on the voltage stability margin calculates which buses in the power system are vulnerable buses that decrease voltage stability, based on the assumed change scenario which is selected, and changes a monitoring target of the voltage stability, based on information of the vulnerable bus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.