Citation

Tomas V, Vucetic D. Pomorstvo 2007; 21(1): 81-97.

Copyright

(Copyright © 2007, Pomorski Fakultet u Rijeci)

DOI

unavailable

PMID

unavailable

Abstract

The authors examine how ship electrical engine control equipment reliability and safety improvement is influenced by redundancy and diagnostics. In control equipment design, system availability, reliability, and safety are important requirements. System safety may gradually decrease through any engine failure if redundancy and diagnostics are not built into the system. The authors analyze how diagnostics and self diagnostics are conceived, their different system structure application possibilities, their control system safety and reliability influence, and consequently the overall reliability and safety of a ship's electric power plant. The authors use two aspects for analysis: first, when the system includes redundancy, safety and reliability improvement is estimated through combined modeling techniques; second, in redundant diagnostic system design, the safety aspect of two architectures is researched using Markov's model. Potential solutions can be evaluated for more suitable fault tolerance operation of the ship's electric power plant through this procedure. The authors also analyze how diagnostic quality influences these solutions.