Modular power conversion system with galvanic insulation
Abstract
A modular power conversion system is provided which includes a plurality of building blocks comprised of transformers and power conversion bridges, and a high frequency AC link that transfers power and provides galvanic isolation between the building blocks. The high frequency link includes an insulating tube separating an AC link conductor and the building blocks. The insulating tube is further provided with conductive or semiconductive layers on its inner and outer surfaces for referencing them to the electric potentials of the adjacent conductors and windings, thereby placing the high electric fields substantially directly across the tube and reducing electric fields and partial discharge or corona in the adjoining space or media. The building blocks may be arranged in multiple stacks for DC or AC interface, preferably with neutral or lower voltage connections at the outer edges of the stacks and higher voltage terminals at the centers of the stack.
- Inventors:
- Issue Date:
- Research Org.:
- US Dept. of Energy (USDOE), Washington, DC (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1892734
- Patent Number(s):
- 11283363
- Application Number:
- 16/997,573
- Assignee:
- Raju, Ravisekhar Nadimpalli, Clifton Park, NY (United States)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H02 - GENERATION H02M - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS
- DOE Contract Number:
- SC0020859
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 08/19/2020
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 24 POWER TRANSMISSION AND DISTRIBUTION
Citation Formats
Raju, Ravisekhar Nadimpalli. Modular power conversion system with galvanic insulation. United States: N. p., 2022.
Web.
Raju, Ravisekhar Nadimpalli. Modular power conversion system with galvanic insulation. United States.
Raju, Ravisekhar Nadimpalli. Tue .
"Modular power conversion system with galvanic insulation". United States. https://www.osti.gov/servlets/purl/1892734.
@article{osti_1892734,
title = {Modular power conversion system with galvanic insulation},
author = {Raju, Ravisekhar Nadimpalli},
abstractNote = {A modular power conversion system is provided which includes a plurality of building blocks comprised of transformers and power conversion bridges, and a high frequency AC link that transfers power and provides galvanic isolation between the building blocks. The high frequency link includes an insulating tube separating an AC link conductor and the building blocks. The insulating tube is further provided with conductive or semiconductive layers on its inner and outer surfaces for referencing them to the electric potentials of the adjacent conductors and windings, thereby placing the high electric fields substantially directly across the tube and reducing electric fields and partial discharge or corona in the adjoining space or media. The building blocks may be arranged in multiple stacks for DC or AC interface, preferably with neutral or lower voltage connections at the outer edges of the stacks and higher voltage terminals at the centers of the stack.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2022},
month = {3}
}
Works referenced in this record:
Inductively powered battery charger
patent, August 2000
- Boys, John Talbot; Green, Andrew William
- US Patent Document 6,100,663
Multilevel inverter for cryogenic power systems
patent, February 2019
- Caiafa, Antonio
- US Patent Document 10,205,379