Eaton Co-Authored Paper Wins IEEE Industrial Electronics Society Award

EIN 37 CS Eaton MVDC 400

Sept 6, 2019

A joint paper by engineers from Florida State University (FSU) and Eaton, “Testing Operation and Coordination of DC Solid State Circuit Breakers” has been recognized for its contribution to the field of industrial electronics at IECON, the annual conference of the IEEE Industrial Electronics Society (IES).

Winning the IES Best Conference Paper Award, the submission described the team’s approach to testing the operation and coordination of medium-voltage direct current (MVDC) power distribution and protection solid state circuit breakers (SSCBs) for shipboard power systems.

The work was commissioned and funded by the US Office of Naval Research, which considers MVDC a promising means of power distribution for next-generation naval vessels. A broad agency announcement for the development of high-power solid state circuit protection for power distribution and energy storage was issued in 2013.

Describing the process of testing one of the navy’s proposed SSCB technologies, this award-winning research paper was a joint effort between FSU’s Center For Advanced Power Systems (CAPS) and Eaton’s Research Labs engineers specializing in medium-voltage power electronics. CAPS itself focuses on basic and applied research in advanced transportation power systems – including control, performance and energy distribution.

The paper’s authors were James Langston, Karl Schoder, Michael Sloderbeck and Michael Steurer from CAPS and Andrew Rockhill, principal engineer at Eaton.

Rapid fault detection and isolation is essential for the next-generation of naval vessels using multi-megawatt, high performance, pulsed power loads. SSCBs are a key technology in meeting this challenge, since they lower the time to detect and clear short circuits—better safeguarding other equipment and shortening fault interruption times. SSCBs also enhance shipboard power system resilience and reduce the fault-ride-through requirements of critical shipboard loads.

However, as MVDC shipboard power systems aren’t yet accessible as a test platform and prototype SSCBs may only be available in limited numbers, conducting full system tests presents a major challenge. The team addressed this issue by combining an array of tests to add different pieces of the puzzle, including Off-line and CHIL simulations, design verification tests, and coordination tests in hardware. While none of these tests could individually verify the overall feasibility of MVDC SSCBs in a system, in combination they create substantial confidence that the devices are viable.

The team’s research focused on testing SSCBs for 1kV DC systems with clearing times less than 1ms, but the approach developed can be extended to higher voltages in the future.

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