IEC TR 61850-7-510:2012

IEC/TR 61850-7-510 ®
Edition 1.0 2012-03
TECHNICAL
REPORT
colour
inside
Communication networks and systems for power utility automation –
Part 7-510: Basic communication structure – Hydroelectric power plants –
Modelling concepts and guidelines

IEC/TR 61850-7-510:2012(E)
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IEC/TR 61850-7-510 ®
Edition 1.0 2012-03
TECHNICAL
REPORT
colour
inside
Communication networks and systems for power utility automation –

Part 7-510: Basic communication structure – Hydroelectric power plants –

Modelling concepts and guidelines

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XC
ICS 33.200 ISBN 978-2-8322-0046-9

– 2 – TR 61850-7-510 © IEC:2012(E)

CONTENTS
FOREWORD . 6

INTRODUCTION . 8

1 Scope . 9

2 Normative references . 9

3 Overall communication structure in a hydropower plant . 10
3.1 Abstract communication structure . 10
3.2 Communication network . 10
3.3 Operational modes . 12
3.4 Fundamental control strategies . 13
3.5 Hydro power plant specific information . 14
4 Structuring control systems . 16
4.1 Basic use of logical nodes . 16
4.2 Logical device modelling . 16
4.3 Example of application for an excitation system . 19
4.3.1 General . 19
4.3.2 Voltage regulation example . 22
4.3.3 PSS example . 24
4.4 Example of application for a turbine governor system . 25
4.4.1 Conditions of this example . 25
4.4.2 Signal hierarchy . 25
4.4.3 Basic overview . 26
4.4.4 Detailed description of used structure . 28
4.5 Examples of how to reference a start / stop sequencer of a unit . 34
4.5.1 General . 34
4.5.2 Unit sequences definition with IEC 61850 . 34
4.5.3 Start sequence from a state “stopped” to a state "speed no load not
excited” (included in LD named “SEQ_SnlNexStr”) . 35
4.5.4 Start sequence from state “speed no load not excited” to state
“generation” (included in LD named “SEQ_SnlExcStr” and
“SEQ_GenStr”) . 37

4.5.5 Stop sequence from state “generator” to state “speed no load not
excited” (included in LD named “SEQ_GridFaultStop”) . 38
4.5.6 Shutdown sequence from state “generator” to state “stopped”
(SEQ_NormalStop) . 40
4.5.7 Quick shutdown sequence from state “generator” to state “stopped”
(SEQ_QuickStop) . 42
4.5.8 Emergency shutdown sequence from state “generator” to state
“stopped” (SEQ_EmgStop) . 45
5 Variable speed system example . 47
5.1 Example of block diagrams and logical nodes of variable speed pumped
storage system . 47
5.2 Example of application for an excitation system of variable speed pumped
storage . 49
5.2.1 General . 49
5.2.2 Automatic power regulator example . 49

TR 61850-7-510 © IEC:2012(E) – 3 –

5.2.3 Power detector example . 50

5.2.4 Gate pulse generator example . 50

5.3 Example of governor system . 51

5.3.1 Guide vane opening function example . 51

5.3.2 Guide vane controller example . 52

5.3.3 Speed controller example . 53

5.3.4 Optimum speed function example . 53

5.4 Example of how to reference a start / stop sequencer for variable speed

pumped storage system . 54

5.4.1 Unit sequences definition for conventional and variable speed

pumped storage . 54
5.4.2 Start sequence from a state "Stopped" to a state "Synchronous
Condenser (SC) mode in pump direction" . 55
5.4.3 Start sequence from a state "Synchronous Condenser (SC) mode in
Pump direction" to a state "Pumping". 56
5.4.4 Mode Transition sequence from a state "Pumping" to a state
"Synchronous Condenser (SC) mode in Pump direction" . 57
5.4.5 Sequence from a state "pumping" to a state "stopped" . 58
5.4.6 Emergency shutdown sequence from a state "pumping" to a state
"stopped" . 60
5.4.7 Shutdown sequence from a state "Synchronous Condenser (SC)
mode in pump direction" to a state "stopped" . 61
5.4.8 Emergency shutdown sequence from a state "Synchronous
Condenser (SC) mode in pump direction" to a state "stopped" . 62
6 Pump start priorities of a high pressure oil system . 64
6.1 Example of a pump start priority for high pressure oil system . 64
6.1.1 General . 64
6.1.2 Sequence to manage a pump start priorities . 64
6.1.3 Sequence to manage a pump . 67
7 Addressing structures, examples of mapping . 68
7.1 Basic principles (IEC 61850-6) . 68
7.2 Decentralised ICD file management. 68
7.3 Centralised ICD file management . 69
7.4 Power plant structure – ISO/TS 16952-10 (Reference Designation System –
Power Plants) . 70
7.4.1 ISO/TS 16952-10 (Reference Designation System – Power Plants) . 70
7.4.2 Example 1: Wicket gate indications . 73

7.4.3 Example 2: 3 Phase Measurement. 74
7.4.4 Example 3: Speed Controller . 74
7.4.5 Example 4: Speed measurement with some thresholds . 75
7.4.6 Example 5: Common turbine information . 76
8 Examples of how to use various types of curves and curve shape descriptions . 76
9 Examples of voltage matching function . 80
Bibliography . 82

Figure 1 – Structure of a hydropower plant . 10
Figure 2 – Simplified network of a hydropower plant . 12
Figure 3 – Principles for the joint control function . 14
Figure 4 – Water flow control of a turbine. 15

– 4 – TR 61850-7-510 © IEC:2012(E)

Figure 5 – Pressurised oil systems with LD suffix and with LN prefix . 18

Figure 6 – Examples of logical nodes used in an excitation system . 19

Figure 7 – Example of logical devices of the regulation part of an excitation system . 21

Figure 8 – AVR basic regulator . 22

Figure 9 – Superimposed regulators, power factor regulator . 22

Figure 10 – Superimposed regulators, over-excitation limiter . 23

Figure 11 – Superimposed regulators, under-excitation limiter . 23

Figure 12 – Superimposed regulators, follow up . 24

Figure 13 – Power system stabilizer function . 24
Figure 14 – Signal hierarchy . 25
Figure 15 – Use of Logical Node HGOV . 27
Figure 16 – Governor control . 29
Figure 17 – Flow control . 30
Figure 18 – Level control . 31
Figure 19 – Speed control .
...