GB/T 42151.71-2024Communication networks and systems for power utility automation - Part 7-1: Basic communication structure - Principles and models (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

This document is part 71 of GB/T 42151 "Electric power automation communication networks and systems". GB/T 42151 has been published as follows part.

--- Part 3: General requirements;

--- Part 4: System and project management;

--- Part 5: Communication requirements for functional and device models;

--- Part 6: Communication configuration description language for power automation systems related to intelligent electronic devices;

--- Part 7-1.Basic communication structure principles and models;

--- Part 7-2.Basic information and communication structure Abstract Communication Service Interface (ACSI);

--- Part 7-7.IEC 61850 related data model machine processable format for tools;

--- Part 8-1.Specific Communication Service Mapping (SCSM) Mapping to MMS (ISO 9506-1 and ISO 9506-2) and ISO/IEC 8802-3.

This document is equivalent to IEC 61850-7-1:2020 "Electric power automation communication networks and systems Part 7-1.Basic communication architecture" Principles and Models

Introduction

GB/T 42151 "Electric Power Automation Communication Network and System" aims to provide interoperability for all devices in the electric power automation system.

It consists of the following parts.

--- Part 1: Introduction. The purpose is to introduce the overview of this document.

--- Part 2: Terminology. The purpose is to list the terms and definitions used in this document.

--- Part 3: General requirements. The purpose is to introduce the overall requirements of communication networks, with an emphasis on quality requirements.

--- Part 4: System and project management. The purpose is to describe the requirements for system and project management processes and the requirements for engineering and testing Dedicated support tools required.

--- Part 5: Communication requirements for functions and device models. The purpose is to specify the communication requirements for various functions of the power automation system.

--- Part 6: Communication configuration description language for power automation systems related to intelligent electronic devices. The purpose is to exchange of intelligent electronic device capability descriptions in a way that allows for the exchange of power automation system capabilities between tools provided by different manufacturers describe.

--- Part 7: Basic communication structure of power automation system. The purpose is to define a hierarchical class model and the services provided by these classes.

services to enable communication between devices.

--- Part 8: Specific communication service mapping SCSM. The purpose is to provide substation control layer and bay layer and station control layer and Communication mapping between bay layers.

--- Part 9: Specific Communication Service Mapping SCSM. The purpose is to provide substation bay layer and process layer and bay layer and Communication mapping between process layers.

--- Part 10: Conformance testing. The purpose is to specify the standard technology for implementing conformance testing and to use when proposing performance parameters specific measurement techniques.

This document outlines the communication and interaction between power automation systems (such as protection devices, circuit breakers, transformers, substation masters, etc.) Architecture.

This document is part of a set of specifications that detail a hierarchical communication architecture for power automation. This architecture was chosen to provide a class (representing Layered Information Model) and abstract definition of services, making the specification independent of specific protocol stacks, implementations, and operating systems.

The purpose of IEC 61850 is to achieve interoperability between intelligent electronic devices (IEDs) provided by different suppliers, more precisely in other words, it is the interoperability of functions performed by various power automation systems, which are often located in equipment (physical and electronic) provided by different suppliers.

Interoperable functions can represent the interface between a process (e.g. a circuit breaker) or a substation automation function (e.g. a protection function).

This document describes the concepts and methods used in IEC 61850 with simple examples of functions.

This document describes the relationship between the other parts of IEC 61850 and finally defines how interoperability is achieved.

Note. Interchangeability means the ability to replace equipment from the same supplier or different suppliers, using the same communication interface and providing at least the same functionality, without Capabilities that will have an impact on the rest of the system. If the difference in functionality is acceptable, the replacement may require some changes in the system.

Interoperability implies standardization of functions and even equipment, both of which are beyond the scope of IEC 61850.Interchangeability complies with the interoperability provisions of IEC 61850.

This document is applicable to all relevant personnel engaged in communication standardization and system standardization in the power automation industry.

A summary and introduction to IEC 61850-7-4, IEC 61850-7-3, IEC 61850-7-2, IEC 61850-6 and IEC 61850-8-1.

Power automation communication network and system Part 7-1.Basic communication structure principles and models

1 Scope

This document describes the modeling approach, communication principles and information models used in the various parts of IEC 61850-7-×.

From a holistic perspective, this paper helps readers understand the following basic modeling concepts and description methods.

---Substation-specific information model for power automation system;

---Equipment functions for power automation;

---Communication system that provides interoperability for power equipment.

This document explains and provides information on the relationship between IEC 61850-7-4, IEC 61850-7-3, IEC 61850-7-2 and IEC 61850-5.

Detailed requirements and explanation of how the abstract services and models of the IEC 61850-7-X series are mapped to the specific communication services defined in IEC 61850-8-1 protocol.

The concepts and models of this document can also be used to describe information models and functions in other applications as follows.

---Hydropower plant;

---Information exchange between substations;

---Information exchange for distribution automation;

---Information exchange between substation and control center;

---Metric information exchange;

--- Status monitoring and diagnosis;

--- Information exchange with engineering systems for equipment configuration.

Note 1.The examples and excerpts in this document are taken from other parts of the IEC 61850 series. These excerpts are used to explain the concepts and methods.

The examples and excerpts are informative.

NOTE 2 Examples in this document use class names defined in IEC 61850-7-4, IEC 61850-7-3 (e.g. logical node class XCBR) and in IEC 61850-Service name defined in IEC 61850-7-2.Canonical name defined only in IEC 61850-7-4, IEC 61850-7-3 and IEC 61850-7-2.

Note 3.This document is not a comprehensive guidance material. It is recommended to read this document first and then read it in conjunction with IEC 61850-7-4, IEC 61850-7-3 and IEC 61850-7-2.

Read, and it is recommended to also read, IEC 61850-1 and IEC 61850-5.

NOTE 4.This document does not discuss specific implementations.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to this document.

Note. GB/T 16720.1-2005 Industrial Automation System Manufacturing Message Specification Part 1: Service Definition (ISO 9506-1:2003, IDT) Note. GB/T 16720.2-2005 Industrial Automation System Manufacturing Message Specification Part 2: Protocol Specification (ISO 9506-2:2003, IDT)