Single-phase filter for reducing harmonics
US7535125B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 9, 2006 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | May 21, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P80/10
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A harmonic current filter includes a first and second power system connectors and first and second load connectors, wherein the second power system connector is directly connected to the second load connector. The filter has a magnetically permeable core with three legs. A first line winding is connected between the first power system connector and the first load connector and is wound around one leg in a manner to produce magnetic flux having a given polarity. A capacitor and a first shunt winding are connected in series between the first power system connector and the second load connector. The first shunt winding is wound around another leg in a manner to produce magnetic flux having an opposite polarity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.