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Compact power converter with high waveform quality for direct-drive renewable energy generators

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-SC0020859
Agency Tracking Number: 0000261462
Amount: $1,565,249.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: 17a
Solicitation Number: N/A
Solicitation Year: 2021
Award Year: 2021
Award Start Date (Proposal Award Date): 2021-08-23
Award End Date (Contract End Date): 2023-08-22
Small Business Information
6 Brassfield Ct.
Clifton Park, NY 12065
United States
DUNS: 116671415
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Ravisekhar Raju
 (518) 278-7017
Business Contact
 Ravisekhar Raju
Phone: (518) 278-7017
Research Institution

Offshore wind turbines are being deployed with increasing power ratings to take advantage of the reduced cost of electricity achievable with larger machine sizes. The power conditioning system and transformer that interface the wind generator to the grid are a critical part and there is an industry need to make them more compact, reliable, easier to install and service, and capable of cleaner waveforms. The objective of the proposed work is to develop a compact power conditioner using wideband gap semiconductors and high frequency transformers for interfacing offshore wind machines such newly developing superconducting generators with high voltage 69 kV collection grids. A multilevel scalable power conditioner topology with novel high frequency and high voltage isolation will be developed. Computer models of the converter interface with a superconducting generator and a medium voltage grid were developed. Prototype testing of the new high frequency transformer insulation concept was carried out. Work to be done includes computer modeling and simulation of the converter system and controls along with generator and grid interface. A prototype 35 kV system will be built using the modular high frequency link converter concept. Commercialization tasks will be undertaken. Benefits of the new power conditioning system include reduced size and weight which will make it easier to install and service in offshore turbines. The technology can also be used for other applications such as solar farm integration, locomotives, and offshore oil and gas installations.

* Information listed above is at the time of submission. *

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