Infrastructure Ontology

Description

Purpose

In energy domain, a simplified infrastructure topology of the system should be described in order to deliver intelligent services. The infrastructure topology facilitates the description of an infrastructure in a flexible way by allowing to describe the infrastructure’s components and its relations.

Scope

Infrastructure ontology provides OWL classes and properties to allow infrastructure of an energy system to be described.

Description

This Infrastructure Ontology helps to define the infrastructure system of OMEGA-X use cases. The main class is the system which can be a physical system, a virtual system, an equipment or a site. A system can have a system configuration encompassing different properties, in general defined from the data sheet or from an initial configuration of the system. New module can be created to define the infrastructure of a specific use case family. This new module should be aligned with the general infrastructure ontology.

Competency Questions

Querying Questions

ID	Question in natural language	Example
cq-1	What is the identifier of specific system?	the id of a specific system
cq-2	What is the system connected to a specific system?	A weather station is connected to meter
cq-3	What is the location of a specific site?	the geolocation of a solar plant
cq-1	What is the system configuratin of a specific equipment?	the configuration of a specific battery includig the nominal charge voltage

Inference Questions

ID	Question in natural language	Example
iq-1	What are the systems connected to another system?	the list of systems connected via connected to target and connected to source relations
iq-2	What are the systems having a specific system configuration?	the list of batteries having the same configuration

Glossary

OMEGA-X Infrastructure

infra:System A system may be an equipment, a site, or any other physical or virtual system. A system that is neither an equipment nor a site may be, for instance, an electric grid or a data analytics service available on a Dataspace.
infra:Equipment An equipement is a physical system which is part of the infrastructure.An equipment may be, for instance, an inverter or an electric vehicle charging station.
infra:Site A site is a part of the physical world or a virtual world that is inherently both located in this world and having a 3D spatial extent. It can include more than one equipment.A site may be, for instance, a solar plant or an electric vehicle charging station pool.
infra:SystemConfiguration A system configuration is a set of properties characterizing its structure and behavior. In case of an equipment, it may reflect its datasheet.

OWL Description

Diagram

Recommendations

A infra:System can be an eds:EvaluationPoint (see https://w3id.org/omega-x/ontology/EnergyDataSet/EvaluationPoint/) once an energy data set is attached to it.
The static attributes of an infra:System can be defined in infra:SystemConfiguration.
A infra:System can have a location.
A infra:System can consist of an another infra:System or many infra:System.
A An infra:System can be connected to another An infra:System. To precise the direction of the connection the object properties infra:isConnectedTo and An infra:isConnectedFrom
For each specific use case family, a detailed infrastructure is defined to create the taxonomy of sites, equipements and static attributes, in addition to the relations between different systems.

Related Work

SEAS

seas:System: The class of systems, i.e., systems virtually isolated from the environment, whose behaviour and interactions with the environment are modeled.
seas:connectedTo: Links a system to a system it is connected to. Connected systems interact in some way. The exact meaning of interact is defined by sub properties of [seas:connectedTo].