Efficient, high power battery module; D.C. transformers and multi-terminal D.C. power networks utilizing same
US4274043A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 1978 |
| Grant date | Jun 16, 1981 |
| Priority date | — |
| Expiry date | Dec 21, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S320/36
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Multiterminal, high voltage D.C. power networks in which the sub-terminals are electrically isolated from each other comprise D.C. transformers, as the terminals. Each transformer comprises a large number of efficient, high energy batteries, connected as two separate groups: one group made up of paralleled long strings of series connected batteries and the other group made up of paralleled short strings of one or more batteries each. Each transformer also comprises automatic monitoring, control and switching means for periodically exchanging charged and discharged strings between the two groups, one of which--the "primary"--is connected across the supply lines from the power source(s) for the network and the other of which--the "secondary"--is connected across the service lines providing power to users thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.