scope:

Scope and purpose of reference architecture

The first objective of a reference architecture is to describe all the existing object models, services, and protocols and how they relate to each other. A strategy can then be developed to show where common models are needed, and if possible, recommend how to achieve a common model. Where changes cannot be made due to maturity of standards, then recommendations for adapters to make the necessary transformations between models are made.

This report deals with the following standardisation initiatives and their relationships:

IEC Technical Committee 57, which is responsible for developing standards for power system control and associated telecommunications. Technical Committee 57 comprises a number of working groups of which the following are covered in this Technical Report:

IEC Technical Committee 57 Working group 3 - standards for reliable data acquisition and control on narrow-band serial data links or over TCP/IP networks between SCADA masters and substations.

IEC Technical Committee 57 Working group 7 - standards for the exchange of realtime operational data between control centers over Wide Area Networks (WANs).

IEC Technical Committee 57 Working group 9 - standards for data communications over distribution line carrier systems.

IEC Technical Committee 57 Working groups 10, 11 and 12 - standards for substations.

IEC Technical Committee 57 Working group 13 - standards to facilitate integration of applications within a control center, including the interactions with external operations in distribution as well as other external sources/sinks of information needed for realtime operations.

IEC Technical Committee 57 Working group 14 - standards for Distribution Management System interfaces for information exchange with other IT systems.

IEC Technical Committee 57 Working group 15 - standards for data and communication security.

IEC Technical Committee 57 Working group 16 - standards for deregulated energy market communications.