Innovative Approach to Automatically Detect Ground Faults in Shipboard Control System

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$79,688.00
Award Year:
2012
Program:
SBIR
Phase:
Phase I
Contract:
N00024-12-P-4005
Agency Tracking Number:
N112-133-0741
Solicitation Year:
2011
Solicitation Topic Code:
N112-133
Solicitation Number:
2011.2
Small Business Information
Progeny Systems Corporation
9500 Innovation Drive, Manassas, VA, -
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
945837219
Principal Investigator:
Geoff Short
Principal Investigator
(401) 846-0111
gshort@progeny.net
Business Contact:
Christine Sigety
Manager of Business Suppo
(703) 368-6107
csigety@progeny.net
Research Institution:
Stub




Abstract
The DDG-51 class Machinery Control System (MCS) depends on a ground (hull) isolated, or"floating", power and signal reference system to achieve performance requirements and protect sensitive components. Latent manufacturing defects, high vibration operating environments, component failures, or handling and maintenance activity result in ground faults where-in the isolated reference system becomes shorted to the hull ground. Existing manual methods for detecting and localizing ground faults in the DDG-51 class Machinery Control System (MCS) are time consuming and result in significant and unpredictable loss in operational availability. Ground Fault Detection techniques and equipment used in commercial industry are invasive, lack automation, or do not address the sensitive operational nature of the MCS system and would be prone to affecting system performance and therefore do not sufficiently address the problem. In order to reduce costs and improve Ao, an automated ground fault detection system is proposed. This system consists of strategically located common mode current detection probes networked to a processing engine which executes diagnostic algorithms to detect and identify the cable containing the ground fault. Detection and localization is determined by the proportion of current detected in a particular probe relative to that detected in other probes.

* information listed above is at the time of submission.

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