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Medium Voltage Direct Current (MVDC) Disconnect Switch Design for Shipboard In-Line Distribution Protection

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-22-C-0608
Agency Tracking Number: N221-064-0159
Amount: $140,000.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N221-064
Solicitation Number: 22.1
Solicitation Year: 2022
Award Year: 2022
Award Start Date (Proposal Award Date): 2022-08-04
Award End Date (Contract End Date): 2023-02-10
Small Business Information
9200 Church Street Suite 302
Manassas, VA 20110-1111
United States
DUNS: 963400192
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Ben Ford
 (703) 401-5198
Business Contact
 Eric Hepburn
Phone: (703) 366-3434
Research Institution

Hepburn and Sons LLC proposes to design a family of medium voltage direct current (MVDC) disconnect switches, while teaming with the University of Wisconsin Milwaukee (UWM). Shipboard MVDC distribution does not exist in the U.S. Navy fleet, but there is significant advantage. The protection of such a system is of critical importance to the feasibility of the system design as well as to the safety of personnel. The team proposes an innovative virtual prototyping process approach to developing the appropriate DC disconnect design to meet the U.S. Navy’s needs. Virtual prototyping is a modeling and simulation approach while incorporating multi-objective design optimization. Existing Navy protection systems can detect and locate single line to ground faults on a given phase, but a second ground fault on a separate phase causes a line-to-line fault which trips breakers and removes power from downstream loads. Isolating an initial single ground fault can mitigate the risk of double faults and loss of power to mission critical equipment.

* Information listed above is at the time of submission. *

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