Rechargeable energy storage system balancing
US12142960B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2022 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Dec 15, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P27/085
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for electrical energy transfer between a pair of series connected batteries coupled between positive and negative DC rails of a power inverter operatively connected to a plurality of stator phase windings of a stator winding of a motor may include coupling a midpoint of the pair of series connected batteries to the stator winding of the motor, and controlling the power inverter to operate the power inverter and the stator winding as a switched-mode power converter to charge at least one of the stator phase windings from one of the pair of series connected batteries and to discharge the at least one of the stator phase windings to the other of the pair of series connected batteries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.