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IEC 61850-7-1
Edition 2.0 2011-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Communication networks and systems for power utility automation –
Part 7-1: Basic communication structure – Principles and models
Réseaux et systèmes de communication pour l'automatisation des systèmes
électriques –
Partie 7-1: Structure de communication de base – Principes et modèles
IEC 61850-7-1:2011
®
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IEC 61850-7-1
Edition 2.0
2011-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Communication networks and systems for power utility automation –
Part 7-1: Basic communication structure – Principles and models
Réseaux et systèmes de communication pour l'automatisation des systèmes
électriques –
Partie 7-1: Structure de communication de base – Principes et modèles
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
XG
ICS 33.200
PRICE CODE
CODE PRIX
ISBN 978-2-88912-555-5
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
®
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inside
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– 2 – 61850-7-1 IEC:2011
CONTENTS
FOREWORD ........................................................................................................................... 8
INTRODUCTION ................................................................................................................... 10
1
Scope ............................................................................................................................. 11
2 Normative references ..................................................................................................... 12
3 Terms and definitions ..................................................................................................... 13
4 Abbreviated terms .......................................................................................................... 13
5 Overview of the IEC 61850 series concepts .................................................................... 14
5.1 Objective ............................................................................................................... 14
5.2 Topology and communication functions of substation automation systems ............ 16
5.3 The information models of substation automation systems .................................... 16
5.4 Applications modelled by logical nodes defined in IEC 61850-7-4 .......................... 18
5.5 The semantic is attached to data ........................................................................... 21
5.6 The services to exchange information ................................................................... 23
5.7 Services mapped to concrete communication protocols ......................................... 24
5.8 The configuration of the automation system .......................................................... 25
5.9 Summary ............................................................................................................... 26
6 Modelling approach of the IEC 61850 series ................................................................... 27
6.1 Decomposition of application functions and information ......................................... 27
6.2 Creating information models by stepwise composition ........................................... 28
6.3 Example of an IED composition ............................................................................. 31
6.4 Information exchange models ................................................................................ 31
6.4.1 General ..................................................................................................... 31
6.4.2 Output model ............................................................................................. 33
6.4.3 Input model ............................................................................................... 36
6.4.4 Model for statistical and historical statistical data ...................................... 46
6.4.5 Model for system functions ........................................................................ 50
7 Application view ............................................................................................................. 52
7.1 General ................................................................................................................. 52
7.2 First modelling step – Logical nodes and data ....................................................... 53
7.3 Mode and behaviour of a logical node ................................................................... 57
7.4 Use of measurement ranges and alarms for supervision functions ......................... 57
7.5 Data used for limiting the access to control actions ............................................... 58
7.6 Data used for blocking functions described by logical nodes ................................. 58
7.7 Data used for logical node inputs/outputs blocking (operational blocking) .............. 58
7.7.1 General ..................................................................................................... 58
7.7.2 Blocking incoming commands .................................................................... 59
7.7.3 Blocking process outputs ........................................................................... 59
7.7.4 Blocking oscillating inputs.......................................................................... 60
7.8 Data used for testing ............................................................................................. 60
7.8.1 General ..................................................................................................... 60
7.8.2 Multicast signals used for simulation ......................................................... 60
7.8.3 Input signals used for testing ..................................................................... 61
7.8.4 Test mode ................................................................................................. 62
7.9 Logical node used for extended logging functions ................................................. 62
8 Device view .................................................................................................................... 63
8.1 General ................................................................................................................. 63
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61850-7-1 IEC:2011 – 3 –
8.2
Second modelling step – logical device model ....................................................... 64
8.2.1 The logical device concept ........................................................................ 64
8.2.2 The device nameplate ............................................................................... 65
8.2.3 Gateways and proxies ............................................................................... 66
8.2.4 Logical devices for monitoring external device health ................................ 67
8.2.5 Logical devices management hierarchy ..................................................... 68
9 Communication view ....................................................................................................... 70
9.1 General ................................................................................................................. 70
9.2 The service models of the IEC 61850 series .......................................................... 70
9.3 The virtualisation ................................................................................................... 72
9.4 Basic information exchange mechanisms .............................................................. 73
9.5 The client-server building blocks ........................................................................... 75
9.5.1 Server ....................................................................................................... 75
9.5.2 Client-server roles ..................................................................................... 76
9.6 Logical nodes communicate with logical nodes ...................................................... 77
9.7 Interfaces inside and between devices .................................................................. 78
10 Where physical devices, application models and communication meet ........................... 79
11 Relationships between IEC 61850-7-2, IEC 61850-7-3 and IEC 61850-7-4 ..................... 80
11.1 Refinements of class definitions ............................................................................ 80
11.2 Example 1 – Logical node and data class .............................................................. 81
11.3 Example 2 – Relationship of IEC 61850-7-2, IEC 61850-7-3, and IEC 61850-7-4 ... 85
12 Formal specification method ........................................................................................... 86
12.1 Notation of ACSI classes ....................................................................................... 86
12.2 Class modelling ..................................................................................................... 87
12.2.1 Overview ................................................................................................... 87
12.2.2 Common data class ................................................................................... 88
12.2.3 Logical node class ..................................................................................... 91
12.3 Service tables ....................................................................................................... 92
12.4 Referencing instances ........................................................................................... 93
13 Name spaces ................................................................................................................. 96
13.1 General ................................................................................................................. 96
13.2 Name spaces defined in the IEC 61850-7-x series ................................................. 97
13.3 Specification of name spaces .............................................................................. 101
13.3.1 General ................................................................................................... 101
13.3.2 Specification ............................................................................................ 101
13.4 Attributes for references to name spaces ............................................................ 102
13.4.1 General ................................................................................................... 102
13.4.2 Attribute for logical device name space (ldNs) ......................................... 103
13.4.3 Attribute for logical node name space (lnNs)............................................ 103
13.4.4 Attribute for data name space (dataNs) ................................................... 104
13.4.5 Attribute for common data class name space (cdcNs) .............................. 104
14 Common rules for new version of classes and for extension of classes......................... 104
14.1 General ............................................................................................................... 104
14.2 Basic rules .......................................................................................................... 104
14.3 Rules for LN classes ........................................................................................... 105
14.3.1 Use of standardized LN classes ............................................................... 105
14.3.2 Extensions to standardized LN classes made by third parties .................. 106
14.3.3 New LN classes ....................................................................................... 106