Power plant design for all-electric ships considering the assessment of carbon intensity indicator

Gallo, Marco; Kaza, Daniele; D’Agostino, Fabio; Cavo, Matteo; Zaccone, Raphael; Silvestro, Federico

doi:10.1016/j.energy.2023.129091

Cited by 3 publications

(1 citation statement)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The interdependence of power supply networks, generator inertia, power generation capacity limitations, and stringent emission requirements, coupled with continuous loads such as electric propulsion systems and intermittent high-power loads like electromagnetic guns and radars [4], renders SPSs more fragile and susceptible to failures. Considering the extreme operating environments of ships, the probability of multiple and consecutive failures in an SPS is elevated.…”

Section: Introductionmentioning

confidence: 99%

Advanced State Estimation Approach for Partially Observable Shipboard Power Systems

Zhu,

Gu,

et al. 2023

JMSE

View full text Add to dashboard Cite

In instances where vessels encounter impacts or other factors leading to communication impairments, the status of electrical equipment becomes inaccessible through standard communication lines for the controllers. Consequently, the shipboard power system enters the partial observable state. Failure to timely ascertain and respond to the current state of the shipboard power system with appropriate restorative controls can result in irreversible damages to the electrical infrastructure and potentially precipitate a complete systemic failure. In this paper, an innovative fault-tolerant control and state estimation approach is proposed to address the partial observability problem of shipboard power systems, based on distributed control architecture and hybrid automata modeling, where controllers are unable to fully acquire equipment status due to device failures like sensor malfunctions. This approach infers the overall state of subsystems using data from intact equipment and discrete events from circuit breakers. Through fault-tolerant control techniques, it ensures that the subsystem state avoids invalid regions, effectively preventing the system from entering unhealthy operational states and significantly reducing the risk of performance degradation or systemic collapse due to faults. Simulation results confirm that this approach can quickly and accurately estimate the system’s current state under partial observation, enabling subsequent fault recovery strategies to accurately pinpoint fault locations and identify optimal recovery solutions.

show abstract

Section: Introductionmentioning

confidence: 99%