Battery system comprising a hybrid battery and an NPC inverter which is connected at the input end to the battery, and method for operating an NPC inverter which is connected at the input end to a hybrid battery
US10075094B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2015 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Oct 20, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a battery system which has a hybrid battery which comprises a first energy storage source having a plurality of first energy storage cells and comprises a second energy storage source which is connected in series with the first energy storage source and has a plurality of second energy storage cells which are different from the first energy storage cells. Furthermore, the battery system has an inverter which is connected at the input end to the battery and is designed to convert a DC voltage which is supplied to the input end into an, in particular polyphase, AC voltage which is produced at the output end. The battery system also has a control unit which is designed to operate the inverter in a first functional mode or in a second functional mode or in a third functional mode by controlling a plurality of semiconductor switches of the inverter. In the first functional mode, the inverter converts a DC voltage which is provided by the first energy storage source and is supplied to the input end into the AC voltage which is produced at the output end. In the second functional mode, the inverter converts a DC voltage which is provided by the second ener…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.