Zonal Ship Design

Abstract

Modern ships typically have a number of distributed systems. Distributed systems are used because it's simpler, cheaper, and better to centrally produce a commodity such as electricity or chill water, than to locally produce it with the users of the commodity. For naval warships, in addition to cost, two measures of performance are very important: Survivability and quality of service. Survivability relates to the ability of the distributed system, even when potentially damaged by a threat, to support the ship's ability to continue fulfilling its missions to the degree planned for the particular threat. Quality of service measures the ability of the distributed systems to support the normal, undamaged operation of its loads. This paper defines a number of key terms, details a number of different zonal architectures, describes the situations where the architectures are best suited and proposes a framework for zonal ship design that promises to satisfy survivability performance requirements and quality of service requirements.

Shipboard electrical power quality of service

“…Non-redundant mission critical Short-Term and Long-Term interrupt loads may be provided with multiple sources of power to enable their continued operation if undamaged when subjected to a design threat. Zonal ship design considerations to address survivability and quality of service issues are discussed in [7].…”

A PC-based test bed for NG IPS for ships in PSCAD™

“…Various zonal architectures for ship board systems are discussed in [10]. In this work, a modified dual bus zonal architecture was adopted with four longitudinal buses running along the port and starboard sides of the ship.…”

“…The essence of the layout was to provide a framework for the determination of the length of cables. Assumptions made were based on [10], [11]:…”

Shipboard electrical system modeling for early-stage design space exploration

“…"from" and "to" buses undamaged and converter operational 0, otherwise (10) and the input power is related by the converter's efficiency:…”