Operating a power electronic circuit arrangement having multiple power converters
US6009002A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 4, 1998 |
| Grant date | Dec 28, 1999 |
| Priority date | — |
| Expiry date | May 4, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0095
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for operating a power electronic circuit having a first power convertor and at least one second power convertor is specified. The pulse duration-modulated driving of the switches of the circuit arrangement is effected according to a comparison of a reference oscillation with a carrier oscillation. According to the invention, a component of a third harmonic is admixed with the reference oscillation over virtually the entire drive-level range, in particular including low drive-level rates in the range from 20% to approximately 87%. It is also possible to admix a corresponding component of a ninth harmonic in the drive-level range from 20% to approximately 33%. This results in a low clock frequency for the first power convertor and the second power convertor need not have a feedback capability. (FIG. 1)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.