2 research outputs found
Modeling and Real-Time Scheduling of DC Platform Supply Vessel for Fuel Efficient Operation
DC marine architecture integrated with variable speed diesel generators (DGs)
has garnered the attention of the researchers primarily because of its ability
to deliver fuel efficient operation. This paper aims in modeling and to
autonomously perform real-time load scheduling of dc platform supply vessel
(PSV) with an objective to minimize specific fuel oil consumption (SFOC) for
better fuel efficiency. Focus has been on the modeling of various components
and control routines, which are envisaged to be an integral part of dc PSVs.
Integration with photovoltaic-based energy storage system (ESS) has been
considered as an option to cater for the short time load transients. In this
context, this paper proposes a real-time transient simulation scheme, which
comprises of optimized generation scheduling of generators and ESS using dc
optimal power flow algorithm. This framework considers real dynamics of dc PSV
during various marine operations with possible contingency scenarios, such as
outage of generation systems, abrupt load changes, and unavailability of ESS.
The proposed modeling and control routines with real-time transient simulation
scheme have been validated utilizing the real-time marine simulation platform.
The results indicate that the coordinated treatment of renewable based ESS with
DGs operating with optimized speed yields better fuel savings. This has been
observed in improved SFOC operating trajectory for critical marine missions.
Furthermore, SFOC minimization at multiple suboptimal points with its treatment
in the real-time marine system is also highlighted
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Evolution of Power System CIM to Digital Twins - A Comprehensive Review and Analysis
Common Information Model (CIM) is a well established
open standard in the power systems domain due to
its common shared vocabulary used to communicate messages
between various applications. CIM provides a basic framework
for information exchange, and it needs to be extended as
and when new business requirements arise. CIM has multiple
utilisation in power system application ranging from developing
an interoperable software application to a cyber-physical system.
It is considered as one of the enablers for smart grids because
of its robust framework for accurate data sharing, merging,
and transformation into reusable information. The latest power
system digital twins’ trend to establish smarter energy grids
highlights new requirements for CIM utilisation. In this context,
this paper aims to offer a comprehensive understanding by
summarising and categorising the research on CIM’s practical
use for interoperability in smart grids.
Index Terms—Common Information Models (CIM), Smart
Grids, IEC61970, Interoperability, Digital Twin (DT), OntologyNational Research Foundation Singapore