IEC TR 61850-7-500-2017 PDF

Full title and description

Communication networks and systems for power utility automation - Part 7-500: Basic information and communication structure - Use of logical nodes for modeling application functions and related concepts and guidelines for substations (IEC TR 61850-7-500:2017). This Technical Report describes recommended use of the IEC 61850 information model (logical nodes and data objects) to model protection, control and other substation application functions and presents related concepts and illustrative use cases and guidelines for substation automation.

Abstract

IEC TR 61850-7-500:2017 provides informative guidance on applying the IEC 61850 information model in substation automation systems. It explains how compatible logical node names and data object names are used for communication between intelligent electronic devices (IEDs) for typical use cases, describes relationships between logical nodes and data objects, and—when useful for understanding use cases—gives informative descriptions of service usage and alternative options. The report is intended as a modelling and implementation guide rather than as a normative specification.

General information

• Status: Current (active technical report / in-force publication).
• Publication date: 26 July 2017.
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 33.200 (Telecontrol. Telemetry / Power systems management and associated information exchange).
• Edition / version: Edition 1.0 (Technical Report, 2017).
• Number of pages: 84 pages (approx.).

Scope

The report describes the use of the IEC 61850 information model for devices and functions in substation automation systems and may be used as informative input for modelling other application domains. It focuses on use of compatible logical node names and data object names for communication between IEDs, the relationship between logical nodes and data objects for specified use cases, and informative descriptions of services where needed to understand use cases. Alternative options are noted when they cannot be excluded.

Key topics and requirements

• Use of logical nodes (LNs) and standardized data object names to model functions (protection, control, measurement, supervision) in substations.
• Mapping of application use cases to combinations of logical nodes and data objects to support interoperable IED communication.
• Guidance on function allocation, logical architecture and interaction between control and protection functions.
• Recommendations for modelling principles and general modelling issues specific to substations (including breaker and bay modelling patterns).
• Illustrative use cases showing relationships between LNs, data objects and, where useful, use of IEC 61850 services (informative).
• Consideration of redundant protection/control configurations and communication system architectures relevant to substation automation.

Typical use and users

Engineers and architects designing substation automation systems; protection, control and SCADA engineers; IED and relay vendors; system integrators implementing IEC 61850 models and mappings; testing and certification bodies; utilities and consultants adopting IEC 61850-based modelling practices. The report is used as guidance to improve interoperability and consistent modelling across devices and projects.

Related standards

Part of the IEC 61850 family; commonly referenced alongside IEC/IEEE 61850-9-3 (precision time profile), IEC 61850-7-2, IEC 61850-7-3, IEC 61850-7-4, IEC 61850-8-1, IEC 61850-5 and other IEC 61850 parts and related documents such as IEC 61588 (PTP/clock synchronization) and IEC/IEEE C37.111 / IEC 60255-24 (COMTRADE). Several national bodies have adopted or published identical/adopted editions of this TR.

Keywords

IEC 61850, logical node, data object, substation automation, IED, modelling, protection, control, communication networks, use cases, TR 7-500.

FAQ

Q: What is this standard?

A: It is IEC TR 61850-7-500:2017, a Technical Report in the IEC 61850 series providing guidance on using logical nodes and the IEC 61850 information model for substation application modelling and related concepts.

Q: What does it cover?

A: It covers recommended modelling practices for logical nodes and data objects, illustrative substation use cases, mappings of functions to LNs, modelling principles for protection and control functions, and informative descriptions of service application where helpful to understand use cases.

Q: Who typically uses it?

A: Substation automation designers, protection and control engineers, IED vendors, system integrators, utilities and testing/certification organizations use the report as guidance to achieve consistent modelling and improved interoperability.

Q: Is it current or superseded?

A: As published, IEC TR 61850-7-500:2017 is the 2017 Technical Report edition. National adoptions and identical republications (where applicable) exist; users should check the IEC webstore or their national standards body for any later revisions or national equivalents. The IEC webstore lists the 2017 TR with stability information.

Q: Is it part of a series?

A: Yes — it is part of the IEC 61850 series (Communication networks and systems for power utility automation) and is intended to be used together with other 61850 parts and related technical reports and standards.

Q: What are the key keywords?

A: Logical node, data object, IEC 61850, substation automation, IED, protection, control, modelling, use cases.