Compact High-Speed Isolation Device for MVDC Applications Navy SBIR FY2010.3 Sol No.: Navy SBIR FY2010.3 Topic No.: N103-226 Topic Title: Compact High-Speed Isolation Device for MVDC Applications Proposal No.: N103-226-0163 Firm: IAP Research, Inc. 2763 Culver Avenue Dayton, Ohio 45429-3723 Contact: Antonios Challita Phone: (937) 297-3153 Web Site: www.iap.com Abstract: Future ships will have significantly increased power demands compared to ships of similar size constructed today. To enable this, MVDC will be needed to move generated power to both propulsion and advanced weapons and sensors. Integrating large power sources and loads via a common DC bus simplified the interface control and hardware requirements. It is anticipated that future MVDC power system architectures will control system currents via source power converters or advanced circuit interruption devices thus decreasing the need for fault interruption capability within each node of the MVDC architecture. However, a means of isolation is still required at the zonal nodes of the MVDC architecture. Utilization of a compact high-speed isolation device would provide the functionality to isolate a faulted circuit. In this Phase I SBIR, we propose to develop a mechanical contactor with a fast moving contactor that is launched with electromagnetic forces to achieve the fast circuit isolation required for this application. The concept was proven in the 4160 VAC PNSC applications. The successful development of this technology will enhance future combatant ship survivability while reducing the size and weight of the whole power distribution system. Benefits: The successful development of this technology will provide new capability in medium voltage DC system protection and load survivability on ships. Utilization of a high-speed isolation device would provide the functionality to isolate a faulted circuit while minimizing the power system impact. The proposed concept has a large potential military and commercial application. If successful, it will enhance future combatant ship survivability, and reduces the size and weight of the whole power distribution system. Potential commercial applications reside in the medium voltage DC power industry and in industrial markets where power interruption is detrimental to their products. Return