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Direct Inversion Wind Power Systems with Control Isolated WBG Thyristors

Award Information

Department of Energy
Award ID:
Program Year/Program:
2013 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Apiq Semiconductor LLC
204 South Floyd Street Louisville, KY 40202-1208
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2013
Title: Direct Inversion Wind Power Systems with Control Isolated WBG Thyristors
Agency: DOE
Contract: DE-FG02-13ER90711
Award Amount: $150,000.00


The current installation rate of wind turbine generators is on track to meet DOE published goals of 20% wind source of electricity by 2030. As the most economical sites become populated, future installations will rely more heavily on low wind speed on-shore site locations and high wind speed off-shore or deep off-shore site locations. As higher power density evolves from 2.5 MW to 6-10 MW per turbine, 15 kV class distribution voltages become absolutely necessary for economical and efficient transfer of the electricity to the user base. A novel inverter system for direct wind power conversion will be developed with cost effective state- of-the-art high voltage wide bandgap (WBG) devices. The inverter system and circuits will be co- developed with the devices which are based on a novel electric field balanced power semiconductor design. The proposed field balanced device innovation significantly increases reverse blocking voltages from the ranges of 1200 V for typical WBG technology to medium kilovolt ranges necessary for the grid tie inverter design and prototyping. The high voltage direct inverter technology eliminates the step up transformer, inverter mass, copper wiring, tower mass, additional concrete, and other direct installation costs which increases the economic viability of low speed and off-shore installations. The proposed technology is applicable to gear driven Double Fed Induction Generators (DFIG), but it enables variable speed, gearless, direct drive Permanent Magnet Synchronous Motor (PMSG) wind systems to become more economically competitive.

Principal Investigator:

Robert Hickman

Business Contact:

Robert Hickman
Small Business Information at Submission:

Apiq Semiconductor LLC, Louisville, Kentucky
204 South Floyd Street Louisville, KY 40202-1208

EIN/Tax ID: 461436178
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: Yes