IEC TS 61400-26-3:2016

Wind energy generation systems - Part 26-3: Availability for wind power stations

IEC TS 61400-26-3:2016(E) provides a framework from which time-based and production-based availability indicators of a wind power station can be derived. It unambiguously describes how data is categorised and provides examples of how the data can be used to derive availability indicators. The approach is to apply the terms and definitions for the applied information models introduced in IEC TS 61400-26-1 and IEC TS 61400-26-2 to a wind power station.

General Information

• Status: Replaced
• Publication Date: 08-Aug-2016
• ICS: 27.180 - Wind turbine energy systems
• Technical Committee: TC 88 - Wind energy generation systems
• Drafting Committee: WG 26 - TC 88/WG 26
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 29-May-2019

Relations

• Replaced By: IEC 61400-26-1:2019 - Wind energy generation systems - Part 26-1: Availability for wind energy generation systems
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC TS 61400-26-3 ®
Edition 1.0 2016-08
TECHNICAL
SPECIFICATION
colour
inside
Wind energy generation systems –
Part 26-3: Availability for wind power stations

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IEC TS 61400-26-3 ®
Edition 1.0 2016-08
TECHNICAL
SPECIFICATION
colour
inside
Wind energy generation systems –

Part 26-3: Availability for wind power stations

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 27.180 ISBN 978-2-8322-3572-0

– 2 – IEC TS 61400-26-3:2016 © IEC 2016

CONTENTS
FOREWORD . 8

INTRODUCTION . 10

1 Scope . 12

2 Normative references. 12

3 Terms, definitions and abbreviations . 13

3.1 Terms and definitions . 13

3.2 Abbreviations for ‘Information available’ . 14
3.3 Abbreviations for ‘Information unavailable’ . 16
4 Information model for WPS . 17
4.1 General . 17
4.2 Services . 18
4.3 Information category priority . 20
4.4 Information model for BOP . 20
5 INFORMATION AVAILABLE (WPS) . 21
5.1 General . 21
5.2 OPERATIVE . 22
5.3 IN SERVICE . 23
5.3.1 General . 23
5.3.2 FULL PERFORMANCE . 24
5.3.3 PARTIAL PERFORMANCE . 25
5.3.4 READY STANDBY . 25
5.4 OUT OF SERVICE . 26
5.4.1 General . 26
5.4.2 TECHNICAL STANDBY . 27
5.4.3 OUT OF ENVIRONMENTAL SPECIFICATION . 28
5.4.4 REQUESTED SHUTDOWN . 29
5.4.5 OUT OF ELECTRICAL SPECIFICATION . 29
5.5 NON-OPERATIVE . 30
5.5.1 General . 30
5.5.2 SCHEDULED MAINTENANCE . 31
5.5.3 PLANNED CORRECTIVE ACTION . 32
5.5.4 FORCED OUTAGE . 32

5.5.5 SUSPENDED . 33
5.6 FORCE MAJEURE . 34
6 INFORMATION UNAVAILABLE (WPS) . 35
Annex A (informative) Entry and Exit condition overview . 37
Annex B (informative) Application scenarios – examples . 38
B.1 Overview. 38
B.2 Application scenarios . 38
B.2.1 Example 1: Normal operation – all WPS . 38
B.2.2 Example 2: Normal operation – part of WPS . 39
B.2.3 Example 3: Dirty WTGSs blades – all WPS . 40
B.2.4 Example 4: Dirty WTGSs blades – part of WPS . 41
B.2.5 Example 5: BOP limitations – all WPS . 42
B.2.6 Example 6: BOP limitations – part of WPS . 43

B.2.7 Example 7: ‘Spinning reserve’ – all WPS . 44

B.2.8 Example 8: ‘Spinning reserve’ – part of WPS . 46

B.2.9 Example 9: Noise restrictions – Warranty related . 47

B.2.10 Example 10: Noise restrictions – environmentally related . 48

B.2.11 Example 11: Ice storm on Grid – all WPS . 49

Annex C (informative) Balance of plant integration . 51

C.1 WPS functions and services . 51

C.2 Externally required functions and services . 51

C.3 Internally required functions and services . 51

C.4 Expansion of the Information Model for BOP functions and services . 51
Annex D (informative) Determination of potential production for a WPS – examples . 53
D.1 Overview. 53
D.2 Primary service . 53
D.3 Secondary services . 53
Annex E (informative) Service availability indicators – examples . 55
E.1 Overview. 55
E.2 Time based WPS availability . 55
E.2.1 General . 55
E.2.2 Operational service availability (“TSO’s view”) . 55
E.2.3 Operational service availability (“WPS operator’s view”) . 56
E.2.4 Technical service availability (“WPS maintenance provider’s view”) . 57
E.3 Production-based service availability indicators – examples . 58
E.3.1 Overview . 58
E.3.2 System operational production-based availability (“WPS operator’s
view”) . 58
E.3.3 System operational production-based availability (“TSO’s view”) . 59
E.3.4 System operational production-based availability (“WPS maintenance
provider’s view”) . 60
Annex F (informative) Examples of optional level 5 categories . 62
F.1 Overview. 62
F.2 Example of level 5 definitions . 62
F.2.1 General . 62
F.2.2 NOT CURTAILED . 64
F.2.3 NOT CURTAILED – WARNING . 65
F.2.4 UP-RATED . 66

F.2.5 DERATED – OTHER . 66
F.2.6 DERATED – GRID WPS OPERATOR . 67
F.2.7 DERATED – GRID TSO. 68
F.2.8 DERATED – GRID CONTROL . 69
F.2.9 DERATED – NOISE . 70
F.2.10 DERATED – TEMPERATURE . 71
F.2.11 DERATED – STRUCTURAL LOAD . 72
F.2.12 DERATED – WIND . 73
F.2.13 DEGRADED – OTHER . 74
F.2.14 DEGRADED – DIAGNOSTIC . 75
F.2.15 DEGRADED – NOISE . 76
F.2.16 DEGRADED – COMPONENT . 77
F.2.17 DEGRADED – TEMPERATURE . 78
F.2.18 DEGRADED – STRUCTURAL LOAD . 79

– 4 – IEC TS 61400-26-3:2016 © IEC 2016

F.2.19 OTHER READY STANDBY . 80

F.2.20 OTHER TECHNICAL STANDBY . 81

F.2.21 LUBRICATION . 81

F.2.22 DE-ICING . 82

F.2.23 DRY OUT .
...