, University of Arkansas awarded $3.2m by ARPA-E for two projects as part of CIRCUITS program

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7 September 2017

University of Arkansas awarded $3.2m by ARPA-E for two projects as part of CIRCUITS program

The US Department of Energy’s Advanced Research Projects Agency-Energy (ARPA-E) has awarded Distinguished Professor Alan Mantooth of the University of Arkansas (U of A) in Fayetteville, AR, a total of $3.2m for two projects that aim to accelerate the development and deployment of a new class of efficient, lightweight and reliable power converters.

They are two of the 21 projects that in August were awarded a total of $30m in ARPA-E funding as part of the CIRCUITS program (‘Creating Innovative and Reliable Circuits Using Inventive Topologies and Semiconductors’).

Power converters and other electronic devices condition, control and convert electrical power to optimize the transmission, distribution and consumption of electricity. The award will fund projects to help reduce the size and complexity of these systems.

As a part of the CIRCUITS program, the ARPA-E supported projects employ power converters based on wide-bandgap semiconductor technology using materials including silicon carbide (SiC) and gallium nitride (GaN) instead of silicon. The Department of Energy (DoE) estimates that 80% of all US electricity will pass through power electronics by 2030.

The award was based on Mantooth’s extensive and long-term investigation of wide-bandgap semiconductors.

“We are very fortunate to have built a very strong program with the support of the U of A administration and state of Arkansas,” says Mantooth. “These awards reflect the competitiveness of our program, the expertise of our faculty, our excellent students, and the great teams we have been able to assemble and collaborate with.”

Mantooth will be lead investigator for ‘Reliable, High Power Density Inverters for Heavy Equipment Applications’, which receives $2,163,630 of the total funding. This project focuses on developing a 2x 250kW dual-power inverter system for use in the electrification of heavy equipment and other, higher-volume transportation vehicles, such as trucks and buses.

The research team includes Yue Zhao (assistant professor of electrical engineering), David Huitink (assistant professor of mechanical engineering), Jia Di (professor of computer science and computer engineering), and Juan Carlos Balda (professor of electrical engineering).

They will design SiC-based power electronics and integrated circuits with advanced thermal management to achieve high levels of efficiency, while increasing the power density. The goal is to make the power density of the inverter four times greater than existing technology and to reduce converter cost by 50%. Other organizations on this team include Caterpillar, Wolfspeed, and the University of Illinois at Urbana-Champaign (UIUC).

UIUC associate professor Robert Pilawa-Podgurski will lead the second project ‘Enabling Ultra-compact, Lightweight, Efficient, and Reliable 6.6kW On-board Bi-directional Electric Vehicle Charging with Advanced Topology and Control’, which receives $1,737,545, of which the U of A will receive $461,604. Mantooth will participate as a member of the research team, focusing on integrated circuit design. Other participants include Oak Ridge National Laboratory (ORNL) and Delphi Automotive.

This project will develop an on-board electric vehicle charger, using a high-density conversion technology known as a flying capacitor multi-level converter, which reduces charging time while also servicing the vehicle’s auxiliary loads to maximize overall system utilization. The team will exploit recent advances in GaN devices and new control techniques to produce the 6.6kW converter that will have 15-times greater power density than existing converters but will also be lighter and more efficient.

Mantooth holds the Twenty-First Century Research Leadership Chair in electrical engineering. He serves as executive director of the DoE-funded Cybersecurity Center for Secure Evolvable Energy Delivery Systems and the National Science Foundation (NSF)-funded GRid-connected Advanced Power Electronic Systems. He is also deputy director of the Center for Power Optimization in Mobile Electronics. Mantooth has served as executive director of the National Center for Reliable Electric Power Transmission since its inception in 2005 and has overseen its research and building program. He is an IEEE Fellow, has served on the IEEE Power Electronics Society (PELS) Advisory Committee since 2004, and is currently serving as PELS president until 2019.

See related items:

ARPA-E awards $30m for 21 projects as part of CIRCUITS program

US DOE awards $27m ARPA-E funding to 14 new 'SWITCHES' projects

Tags: GaN power transistor SiC power devices

Visit: www.arpa-e.energy.gov/sites/default/files/

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