Static reactive power compensating equipment
US5672956A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1995 |
| Grant date | Sep 30, 1997 |
| Priority date | — |
| Expiry date | Aug 3, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E40/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A static reactive power compensating equipment includes a circuit for preventing harmonic currents generated by adjusting lag compensation current from phase control from flowing out of the equipment. A first reactor and a controller are connected to a switching circuit. A second reactor is connected between an output terminal and a connection node. The first reactor is also connected to the connection node such that the first and second reactors are series connected. A resonant circuit including a third reactor connected in series with a capacitor is connected to the connection node such that the resonant circuit is series connected with the second reactor and parallel connected to the first reactor. The resonant circuit is constructed to resonate at a predetermined frequency which substantially absorbs harmonic currents flowing from the static reactive power compensating equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.