Power system stabilizer
US4785405A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jan 5, 1987 |
| Grant date | Nov 15, 1988 |
| Priority date | — |
| Expiry date | Jan 5, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S20/222
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The power system stabilizer is provided at an individual power system to be separated due to an accident cutting off a link line which interconnects a number of power systems to form a large-scale power system. The power systems include power stations such as power plants and transformer substations. A simplified arithmetic processing unit of the stabilizer performs an arithmetic processing by a simple linear equation using an output frequency of a representative power station belonging to the separated power system immediately after the accident has been cleared, so that a total load drop of the separated power system can be assumed. Based on the assumption amount, balance control of demand and supply in the separated system is made.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.