Availability-Based Selection of Electricity Delivery Network in Marine Conversion Systems Using Bayesian Network

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Abstrakt

Availability is an economically important metric used to assess the design of marine energy farms. Nowadays, three typical concepts of energy delivery network topologies have been proposed for marine energy conversion systems. Few research works assessing the availability of marine energy conversion systems have been published. Their methodology is only based upon time-consuming Monte Carlo simulations and only covers one maintenance strategy. The objective of this study is to consider different maintenance strategies and quantitatively assess the time-dependent availability of these typical energy delivery network topologies by investigating the working philosophy of these topologies and modelling the logic dependencies of them in a Bayesian network (BN). The working philosophy of each topology is investigated to obtain the logic dependencies of the units in the energy delivery network, by means of qualitative system analysis. A table-like data structure, called hierarchy, is introduced to store the information on the logic dependencies and serves as a basis for establishing the corresponding BN models. A logic gate in the hierarchy can be represented by a conditional probability table in the BN model. The availability of these topologies, as a function of time, can be estimated through the BN models. The optimal topology can be selected, based upon the time-dependent availability.
OriginalsprogEngelsk
Artikelnummer3574
TidsskriftEnergies
Vol/bind14
Udgave nummer12
Antal sider14
ISSN1996-1073
DOI
StatusUdgivet - 16 jun. 2021

Emneord

  • Energy delivery network
  • Bayesian network
  • Logic dependency
  • Availability

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