Converter system having converter modules connected by a DC intermediate circuit, and method for operating such a system
US6528903B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 2001 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Sep 28, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J1/102
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A converter system has a number of individual converter modules, which are in the form of load converter modules or power supply system converter modules and are connected to one another via a DC voltage intermediate circuit which has two DC voltage busbars and a DC voltage intermediate circuit capacitance arranged between the DC voltage busbars. A defective converter module is isolated from a common intermediate circuit, in which interruption-free further operation of the other modules on the intermediate circuit is possible and in which the isolating means are not destroyed. The DC voltage intermediate circuit capacitance is subdivided into a number of parts corresponding to the number of converter modules. Each of the converter modules is associated with a portion of the DC voltage intermediate circuit capacitance and forms a local intermediate circuit. The converter modules are coupled together with their local intermediate circuits to the DC voltage busbars by at least one protective switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.