On March 2nd, IEEE (PI)2 Austin co-hosted “High Power Density High Efficiency Altitude-ready Solid-state Circuit Breaker for Hybrid Electric Propulsion” with Dr. Di Zhang, Associate Professor, Naval Postgraduate School,

Organized by the  SFBAC (combined Santa Clara Valley, San Francisco, & Oakland/East Bay) IEEE Power Electronics Society (PELS)

The Naval postgraduate school is leading a multi-discipline team to develop a TRL 6 solid-state circuit breaker to meet challenging specifications for NASA’s hybrid electric propulsion application:

  • rated at 2 kV and 1.2 kA
  • Power density target is higher than 100 kW/kg
  • Efficiency target is higher than 99.5%
  • Altitude capability at 35,000 ft or higher

This technical presentation covered the application background, design principle and technical solutions, focusing on module PD tests results at high altitude and the experimental results with e-MOV technique.

About the Speaker: Dr. Di Zhang (SM) received his Ph.D. from Virginia Tech in 2010. He then worked in in electric power and energy areas in General Electric Global Research Center for 10 years, after which he joined NPS as an associate professor. His current research focuses on power system and power converter technology in Navy applications, especially related to medium voltage dc systems. He has obtained 35 issued US patents, published 22 IEEE journal papers and served as principal investigator of six projects with ~$20M funding in total from NASA, ONR, DOE and NSF.