What is BS EN IEC 61970‑456 - Energy management system application program interface about?
BS EN IEC 61970 is a series on Energy management system application program interface. Energy management system application program interface is a system of computer-aided tools used by operators of electric utility grids to monitor, control, and optimize the performance of the generation or transmission system. BS EN IEC 61970‑456 define at an abstract level the content and exchange mechanisms used for data transmitted between power system analyses applications, control centres and/or control centre components.
The purpose of BS EN IEC 61970‑456 is to rigorously define the subset of classes, class attributes, and roles from the CIM necessary to describe the result of state estimation, power flow and other similar applications that produce a steady-state solution of a power network, under a set of use cases which are included informatively in BS EN IEC 61970‑456. BS EN IEC 61970‑456 is intended for two distinct audiences, data producers and data recipients, and may be read from those two perspectives. From the standpoint of model export software used by a data producer, the document describes how a producer may describe an instance of a network case in order to make it available to some other program. From the standpoint of a consumer, the document describes what that importing software must be able to interpret in order to consume power flow cases.
Who is BS EN IEC 61970‑456 - Energy management system application program interface for?
BS EN IEC 61970‑456 on Energy management system application program interface is useful for:
- Telecommunication sector
- Administration sector
- Data centres
- Design engineers
- Software engineers
Why should you use BS EN IEC 61970‑456 - Energy management system application program interface?
The CIM is an abstract model that represents the objects in an electric utility enterprise typically needed to model the operational aspects of a utility. BS EN IEC 61970‑456 defines common information model (CIM) datasets exchanged between application programs in energy management systems (EMS). BS EN IEC 61970‑456 specify the semantic structure of data exchanged between components (or applications) and/or made publicly available data by a component. BS EN IEC 61970‑456 describes the payload that would be carried if applications are communicating via a messaging system, but the standard does not include the method of exchange, and therefore is applicable to a variety of exchange implementations. BS EN IEC 61970‑456 assumes and recommends that the exchanged data is formatted in XML based on the resource description framework (RDF) schema as specified in IEC 61970-552 CIM XML model exchange standard.
There are many different use cases for which use of this document is expected and they differ in the way that BS EN IEC 61970‑456 will be applied in each case. Implementers are expected to consider what use cases they wish to cover in order to know the extent of different options they must cover. As an example, BS EN IEC 61970‑456 will be used in some cases to exchange starting conditions rather than solved conditions, so if this is an important use case, it means that a consumer application needs to be able to handle an unsolved state as well as to one which has met some solution criteria. Using BS EN IEC 61970‑456 you can define at an abstract level the content and exchange mechanisms used for data transmitted between power system analyses applications.
What’s changed since the last update?
BS EN IEC 61970‑456:2018 supersedes BS EN 61970‑456:2013. BS EN IEC 61970‑456:2018 includes some technical changes with respect to BS EN 61970‑456:2013. These include:
- The Steady-State Hypothesis (SSH) profile has been added in new Subclause 8.2
- Clause 5 "Overview" has been extended to better describe the relation between different profiles and aligned with the current nomenclature used with profiles, e.g., "data set" and "network part"
- The former Clause 6 "Architecture" has been shrunk and merged with Clause 6 "Use cases"
- The former Clause 7 "Applying the standard to business problems" has been split and merged with Clause 6 "Use cases" and Clause 7 "Data model with CIM XML examples"
- Clause 6 "Use cases" description of the use cases have been extended
