Method in connection with converter bridges
US6859374B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2003 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Jun 12, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/5387
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method in connection with converter bridges connected in parallel, whereby the converter bridges are directly connected in parallel and the converter bridges are controlled independently on the basis of control variables, the method comprising the steps of controlling the converter bridges to produce an output switching vector on the basis of the control variables, determining the magnitude of a common-mode current component of the converter bridges, and selecting a zero vector to be used during control as a switching vector on the basis of the sign of the common-mode current component to minimize common-mode current of the converter bridges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.