Table 1 Terms and definition in the SGAM framework (CEN-CENELEC-ETSI Smart Grid Coordination Group 2012)

Terms

SGAM Interoperability Layer

To allow a clear presentation and simple handling of the architecture model, the interoperability categories described in the GridWise Architecture model are aggregated in SGAM into five abstract interoperability layers.

SGAM Domain

One dimension of the Smart Grid Plane covers the complete electrical energy conversion chain, partitioned into 5 domains.

SGAM Zone

One dimension of the Smart Grid Plane represents the hierarchical levels of power system management, partitioned into 6 zones.

Domain

Generation

Representing of electrical energy in bulk quantities, typically connected to the transmission grid.

Transmission

Representing the transmission infrastructure and organization.

Distribution

Representing the distribution infrastructure and organization.

Distributed Energy Resources (DER)

Representing distributed electrical resources directly connected to the public distribution grid.

Customer Premises

Representing electricity consumers and producers of electricity. This includes industrial, commercial, and home facilities. Production from consumer generation such as photovoltaic, EV storage, batteries, micro turbines, etc. are included in this domain.

Zone

Process

Physical, chemical, or spatial transformations of energy and the physical equipment directly involved e.g. generators and transformers.

Field

Equipment to protect, control, and monitor the process of the power system, e.g. protection relays and bay controller.

Station

Areal aggregation level for field level, e.g. data concentration, functional aggregation, and local Supervisory Control And Data Acquisition (SCADA) systems.

Operation

Power system control operation in the respective domain, e.g. energy management systems in generation and transmission systems and EV fleet charging management systems.

Enterprise

Commercial and organizational processes, services, and infrastructures for enterprises (utilities, service providers, energy traders), e.g. asset management, logistics, work force management, staff training, customer relation management, billing and procurement.

Market

Market operations possible along the energy conversion chain, e.g. energy trading and retail market.

Interoperability

Business

Represents the business view on the information exchange related to smart grids. Regulatory and economic structures, policies, business models, business portfolios of market parties relate to this layer.

Function

Function and services including their relationships from an architectural viewpoint. The functions are represented independently from actors and physical implementations in applications, systems, and components.

Information

The information that is being used and exchanged between functions, services, and components.

Communication

Describe protocols and mechanisms for the interoperable exchange of information between components in the context of the underlying use case, function or service, and related information objects or data models.

Component

Physical distribution of all participating components in the smart grid context.