ARCP multi-point converter having variable-potential intermediate-circuit capacitances
US6278626A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 5, 2000 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | Sep 5, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/4811
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An ARCP converter having a series circuit formed of at least four main switches per converter phase, which are connected electrically in parallel between DC voltage rails is described. A capacitance is connected in parallel with each individual main switch. Two intermediate-circuit capacitances are disposed between the DC voltage rails. A voltage neutral point of the capacitances is available for tapping. Junction points of adjacent main switches which do not form the output are connected to one another via variable-potential intermediate-circuit capacitances for forming commutation cells in a balanced manner with regard to the DC voltage rails. Each intermediate-circuit capacitance is formed of two capacitance elements, whose junction points are available as voltage neutral points, with the output of the converter phase connected to a resonant inductance, whose further connection is connected to all the voltage neutral points via a controllable bi-directional auxiliary switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.