Voltage source converter having chain link converter for use in high voltage DC transmission
US8861234B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2009 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | May 12, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/4835
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A DC voltage source converter for use in high voltage DC power transmission comprising at least one chain-link converter connected between first and second DC terminals. The or each chain-link converter includes a chain of modules connected in series and each module including at least one pair of semiconductor switches connected in parallel with an energy storage device. The or each chain-link converter is operable when DC networks are connected to the first and second DC terminals to control switching of the modules to selectively charge or discharge the energy storage device of one or more of the modules, as required, to offset any difference in the DC voltage levels of the DC networks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.