{"id":255745,"date":"2024-10-19T16:54:28","date_gmt":"2024-10-19T16:54:28","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-61400-26-12019\/"},"modified":"2024-10-25T12:22:36","modified_gmt":"2024-10-25T12:22:36","slug":"bs-en-iec-61400-26-12019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-61400-26-12019\/","title":{"rendered":"BS EN IEC 61400-26-1:2019"},"content":{"rendered":"

IEC 61400-26-1:2019 defines an information model from which time-based, and production-based availability indicators for services can be derived and reported. The purpose is to provide standardised metrics that can be used to create and organise methods for availability calculation and reporting according to the user\u2019s needs. The document provides information categories, which unambiguously describe how data is used to characterise and categorise the operation. The information model specifies category priority for discrimination between possible concurrent categories. Further, the model defines entry and exit criteria to allocate fractions of time and production values to the proper information category. A full overview of all information categories, exit and entry criteria is given in Annex. The document can be applied to any number of WTGSs, whether represented by an individual turbine, a fleet of wind turbines, a wind power station or a portfolio of wind power stations. A wind power station is typically made up of all WTGSs, functional services and balance of plant elements as seen from the point of common coupling. This first edition cancels and replaces IEC TS 61400-26-1:2011, IEC TS 61400-26-2:2014 and IEC TS 61400-26-3:2016.<\/p>\n

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PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nNational foreword <\/td>\n<\/tr>\n
5<\/td>\nAnnex ZA(normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n
7<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
13<\/td>\nFOREWORD <\/td>\n<\/tr>\n
15<\/td>\nINTRODUCTION
Figures
Figure\u00a01 \u2013 Data stakeholders for a wind energy generation system <\/td>\n<\/tr>\n
17<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
18<\/td>\n3 Terms, definitions and abbreviated terms
3.1 Terms and definitions <\/td>\n<\/tr>\n
20<\/td>\n3.2 Abbreviated terms <\/td>\n<\/tr>\n
23<\/td>\n4 Information model
4.1 Basic model
4.2 Information categories <\/td>\n<\/tr>\n
24<\/td>\n4.3 Information category priority
Figure\u00a02 \u2013 Information category overview <\/td>\n<\/tr>\n
25<\/td>\n4.4 Services
Figure\u00a03 \u2013 Information category priority <\/td>\n<\/tr>\n
26<\/td>\n4.5 Service delivery layers
4.5.1 General
4.5.2 Time layer
4.5.3 Actual service delivery layer
4.5.4 Potential service delivery layer
Figure 4 \u2013 Three-layer information model <\/td>\n<\/tr>\n
27<\/td>\n4.5.5 Lost service
4.6 Modelling multiple services <\/td>\n<\/tr>\n
28<\/td>\nFigure 5 \u2013 Information categories, definitions for layer 2 and layer 3,mandatory categories <\/td>\n<\/tr>\n
29<\/td>\n4.7 Determination of information categories for the WPS
Figure\u00a06 \u2013 Examples of an information model representing active energy,reactive energy, high and low frequency response services <\/td>\n<\/tr>\n
30<\/td>\n4.8 Application of the information model to components of the WEGS
5 Information categories
5.1 INFORMATION AVAILABLE <\/td>\n<\/tr>\n
31<\/td>\n5.2 OPERATIVE
5.3 IN SERVICE
5.3.1 General
5.3.2 FULL PERFORMANCE <\/td>\n<\/tr>\n
32<\/td>\n5.3.3 PARTIAL PERFORMANCE
5.3.4 READY STANDBY <\/td>\n<\/tr>\n
33<\/td>\n5.4 OUT OF SERVICE
5.4.1 General
5.4.2 TECHNICAL STANDBY
5.4.3 OUT OF ENVIRONMENTAL SPECIFICATION <\/td>\n<\/tr>\n
34<\/td>\n5.4.4 REQUESTED SHUTDOWN
5.4.5 OUT OF ELECTRICAL SPECIFICATION <\/td>\n<\/tr>\n
35<\/td>\n5.5 NON-OPERATIVE
5.5.1 General
5.5.2 SCHEDULED MAINTENANCE
5.5.3 PLANNED CORRECTIVE ACTION <\/td>\n<\/tr>\n
36<\/td>\n5.5.4 FORCED OUTAGE
5.5.5 SUSPENDED <\/td>\n<\/tr>\n
37<\/td>\n5.6 FORCE MAJEURE
5.7 INFORMATION UNAVAILABLE <\/td>\n<\/tr>\n
38<\/td>\nAnnex\u00a0A (informative)Entry and exit conditions overview for WEGS
Figure A.1 \u2013 Overview of the entry and exit conditions of all mandatory information categories described in this document <\/td>\n<\/tr>\n
39<\/td>\nAnnex\u00a0B (informative)Optional information categories for WEGS information model \u2013illustrative explanation and examples
B.1 General
B.2 PARTIAL PERFORMANCE \u2013 optional categories
B.2.1 Introduction of optional categories
B.2.2 Derated <\/td>\n<\/tr>\n
40<\/td>\nB.2.3 Degraded
Figure B.1 \u2013 Information category overview \u2013 mandatory and optional <\/td>\n<\/tr>\n
41<\/td>\nB.3 OUT OF ENVIRONMENTAL SPECIFICATION \u2013 optional categories
B.3.1 Introduction of optional categories
B.3.2 Calm winds
B.3.3 Other environmental <\/td>\n<\/tr>\n
42<\/td>\nB.4 PLANNED CORRECTIVE ACTION \u2013 optional categories
B.4.1 Introduction of optional categories
B.4.2 Retrofit
B.4.3 Upgrade
B.4.4 Other planned corrective action <\/td>\n<\/tr>\n
43<\/td>\nB.5 FORCED OUTAGE \u2013 optional category
B.5.1 Introduction of optional categories
B.5.2 Response
Figure B.2 \u2013 Workflow breakdown structure <\/td>\n<\/tr>\n
44<\/td>\nB.5.3 Diagnostic
B.5.4 Logistic
B.5.5 Repair <\/td>\n<\/tr>\n
45<\/td>\nB.6 SUSPENDED \u2013 optional categories
B.6.1 Introduction of optional categories
B.6.2 Suspended scheduled maintenance
B.6.3 Suspended planned corrective action
B.6.4 Suspended forced outage <\/td>\n<\/tr>\n
46<\/td>\nB.7 Considerations of competing assignment of lost service
Figure B.3 \u2013 Example of simultaneous degrading and derating <\/td>\n<\/tr>\n
47<\/td>\nAnnex\u00a0C (informative)Examples of availability indicators
C.1 General
C.1.1 Introduction to the scope of this annex
C.1.2 Time-based availability
C.1.3 Production-based availability <\/td>\n<\/tr>\n
48<\/td>\nC.1.4 Mapping of availability and unavailability
C.2 Time-based availability
C.2.1 General
C.2.2 Time-based availability \u2013 "operational availability"
Tables
Table C.1 \u2013 Example of mapping of available and unavailableinformation categories <\/td>\n<\/tr>\n
50<\/td>\nC.2.3 Time based availability \u2013 "technical availability" <\/td>\n<\/tr>\n
51<\/td>\nC.3 Production-based availability
C.3.1 General
C.3.2 Production-based availability \u2013 "operational availability" <\/td>\n<\/tr>\n
52<\/td>\nC.3.3 Production-based availability \u2013 "technical availability" <\/td>\n<\/tr>\n
53<\/td>\nC.4 Capacity factor and other performance indicators
C.4.1 General <\/td>\n<\/tr>\n
54<\/td>\nC.4.2 Capacity factor
C.4.3 Production ratio
C.4.4 Mean-value based information <\/td>\n<\/tr>\n
55<\/td>\nAnnex\u00a0D (informative)Verification scenarios \u2013 examples
D.1 General
D.2 Time-based scenarios for a WTGS
D.2.1 Introduction to verification scenarios
Table D.1 \u2013 Verification scenarios \u2013 time allocation to information categories <\/td>\n<\/tr>\n
56<\/td>\nD.2.2 Scenario 1 \u2013 communication aspects
Table D.2 \u2013 Verification scenarios \u2013 communication aspects <\/td>\n<\/tr>\n
57<\/td>\nD.2.3 Scenario 2 \u2013 partial operational aspects
Table D.3 \u2013 Verification scenarios \u2013 partial operational aspects <\/td>\n<\/tr>\n
58<\/td>\nD.2.4 Scenario 3 \u2013 maintenance aspects
Table D.4 \u2013 Verification scenarios \u2013 maintenance aspects <\/td>\n<\/tr>\n
59<\/td>\nD.2.5 Scenario 4 \u2013 operational aspects
Table D.5 \u2013 Verification scenarios \u2013 operational aspects <\/td>\n<\/tr>\n
62<\/td>\nD.2.6 Scenario 5 \u2013 grid\/electrical network aspects
Table D.6 \u2013 Verification scenarios \u2013 grid \/ electrical network aspects <\/td>\n<\/tr>\n
63<\/td>\nD.2.7 Scenario 6 \u2013 environmental aspects
Table D.7 \u2013 Verification scenarios \u2013 environmental aspects <\/td>\n<\/tr>\n
65<\/td>\nD.3 Production-based scenarios for a WTGS
D.3.1 Introduction to verification scenarios
D.3.2 Scenarios under FULL PERFORMANCE
Table D.8 \u2013 FULL PERFORMANCE: by definition, actual energyproduction is equal to the potential energy production <\/td>\n<\/tr>\n
66<\/td>\nTable D.9 \u2013 FULL PERFORMANCE: actual energy production is less than potential energy production but within agreed uncertainty
Table D.10 \u2013 FULL PERFORMANCE: actual energy productiongreater than potential energy production <\/td>\n<\/tr>\n
67<\/td>\nD.3.3 Scenarios under PARTIAL PERFORMANCE
Table D.11 \u2013 PARTIAL PERFORMANCE \u2013 derated: grid constraint
Table D.12 \u2013 PARTIAL PERFORMANCE \u2013 derated: grid constraint,actual energy production less than requested <\/td>\n<\/tr>\n
68<\/td>\nTable D.13 \u2013 Partial performance \u2013 derated: output constraintdue to excessive noise of the WTGS
Table D.14 \u2013 PARTIAL PERFORMANCE \u2013 derated:dirt on blades constrained performance <\/td>\n<\/tr>\n
69<\/td>\nD.3.4 Scenarios under READY STANDBY
Table D.15 \u2013 PARTIAL PERFORMANCE \u2013 derated: ice accumulated on blades has been detected, WTGS is allowed to operate although the power performance is \u2018derated\u2019
Table D.16 \u2013 PARTIAL PERFORMANCE \u2013 degraded:WTGS deterioration known to the WTGS user
Table D.17 \u2013 READY STANDBY: avian detection system <\/td>\n<\/tr>\n
70<\/td>\nD.3.5 Scenarios under TECHNICAL STANDBY
Table D.18 \u2013 READY STANDBY: Automatic generation control \u2013 var support
Table D.19 \u2013 TECHNICAL STANDBY: WTGS is cable unwinding <\/td>\n<\/tr>\n
71<\/td>\nD.3.6 Scenarios under OUT OF ENVIRONMENTAL SPECIFICATION
Table D.20 \u2013 OUT OF ENVIRONMENTAL SPECIFICATION \u2013 calm winds
Table D.21 \u2013 OUT OF ENVIRONMENTAL SPECIFICATION \u2013 high winds
Table D.22 \u2013 OUT OF ENVIRONMENTAL SPECIFICATION \u2013 temperature too high <\/td>\n<\/tr>\n
72<\/td>\nD.3.7 Scenarios under REQUESTED SHUTDOWN
Table D.23 \u2013 REQUESTED SHUTDOWN: ice on blades is detected and WTGS user requests shutdown of the WTGS
Table D.24 \u2013 REQUESTED SHUTDOWN: sector management <\/td>\n<\/tr>\n
73<\/td>\nD.3.8 Scenarios under OUT OF ELECTRICAL SPECIFICATION
Table D.25 \u2013 REQUESTED SHUTDOWN: noise nuisance \u2013 warranty claim
Table D.26 \u2013 OUT OF ELECTRICAL SPECIFICATION: low voltage <\/td>\n<\/tr>\n
74<\/td>\nD.3.9 Scenarios under SCHEDULED MAINTENANCE
D.3.10 Scenarios under PLANNED CORRECTIVE ACTION
Table D.27 \u2013 SCHEDULED MAINTENANCE: WTGS is under scheduled maintenance workby the WTGS manufacturer or maintenance provider within the time allowanceagreed by the maintenance contract
Table D.28 \u2013 PLANNED CORRECTIVE ACTION: WTGS manufacturer or maintenance provider performs corrective action to the WTGS at his discretion outside the time allowance of scheduled maintenance <\/td>\n<\/tr>\n
75<\/td>\nD.3.11 Scenarios under FORCED OUTAGE
Table D.29 \u2013 FORCED OUTAGE: short circuit
Table D.30 \u2013 FORCED OUTAGE: corrosion <\/td>\n<\/tr>\n
76<\/td>\nD.3.12 Scenarios under SUSPENDED
Table D.31 \u2013 FORCED OUTAGE: overheating
Table D.32 \u2013 SUSPENDED: suspended repair work due to storm with lightning <\/td>\n<\/tr>\n
77<\/td>\nD.3.13 Scenarios under FORCE MAJEURE
D.4 Production-based scenarios for a WTGS \u2013 calculation of lost production
D.4.1 Introduction to verification scenarios
D.4.2 Production-based availability algorithm based on mandatory information categories ("operational availability")
Table D.33 \u2013 FORCE MAJEURE: no access to the WTGSdue to flooding impacting infrastructure <\/td>\n<\/tr>\n
78<\/td>\nTable D.34 \u2013 Production-based availability algorithm based on mandatory information categories only,"operational availability" <\/td>\n<\/tr>\n
80<\/td>\nD.4.3 Production-based availability algorithm \u2013 including optional categories ("technical availability")
Table D.35 \u2013 Production-based availability algorithm \u2013including optional categories, "technical availability" <\/td>\n<\/tr>\n
81<\/td>\nD.5 Production-based scenarios for a WPS
D.5.1 Introduction to verification scenarios
D.5.2 Example 1: Normal operation \u2013 all WPS <\/td>\n<\/tr>\n
82<\/td>\nD.5.3 Example 2: Normal operation \u2013 part of WPS
Table D.36 \u2013 Scenario, Example 1: Normal operation \u2013 all WPS <\/td>\n<\/tr>\n
83<\/td>\nD.5.4 Example 3: Contaminated WTGSs blades \u2013 all WPS
Table D.37 \u2013 Scenario, Example 2: Normal operation \u2013 part of WPS <\/td>\n<\/tr>\n
84<\/td>\nD.5.5 Example 4: Contaminated WTGSs blades \u2013 part of WPS
Table D.38 \u2013 Scenario, Example 3: Contaminated WTGSs blades \u2013 all WPS <\/td>\n<\/tr>\n
85<\/td>\nD.5.6 Example 5: BOP limitations \u2013 all WPS
Table D.39 \u2013 Scenario, Example 4: Contaminated WTGSs blades \u2013 part of WPS <\/td>\n<\/tr>\n
86<\/td>\nD.5.7 Example 6: BOP limitations \u2013 part of WPS
Table D.40 \u2013 Scenario, Example 5: BOP limitations \u2013 all WPS <\/td>\n<\/tr>\n
87<\/td>\nD.5.8 Example 7: "Spinning reserve" \u2013 part of WPS
Table D.41 \u2013 Scenario, Example 6: BOP limitations \u2013 part of WPS <\/td>\n<\/tr>\n
88<\/td>\nD.5.9 Example 8: "Spinning reserve" \u2013 all WPS
Table D.42 \u2013 Scenario, Example 8: "Spinning reserve" \u2013 part of WPS <\/td>\n<\/tr>\n
89<\/td>\nD.5.10 Example 9: Noise restrictions \u2013 warranty related
Table D.43 \u2013 Scenario, Example 7: "Spinning reserve" \u2013 all WPS <\/td>\n<\/tr>\n
90<\/td>\nTable D.44 \u2013 Scenario, Example 9: Noise restrictions \u2013 all WPS <\/td>\n<\/tr>\n
91<\/td>\nD.5.11 Example 10: Noise restrictions \u2013 environmentally related
Table D.45 \u2013 Scenario, Example 10: Noise restrictions \u2013 all WPS <\/td>\n<\/tr>\n
92<\/td>\nD.5.12 Example 11: Ice storm on grid \u2013 all WPS
Table D.46 \u2013 Scenario, Example 11: Ice storm on grid \u2013 all WPS <\/td>\n<\/tr>\n
94<\/td>\nAnnex\u00a0E (informative)Possible methods for determination of potential WEGS energy production
E.1 General
E.2 Specific power curve and velocities methods
E.2.1 General
E.2.2 Nacelle anemometer wind measurement with power curve <\/td>\n<\/tr>\n
95<\/td>\nE.2.3 Upstream wind measurement with power curve
E.2.4 Met mast wind measurement with correction factors and power curve <\/td>\n<\/tr>\n
96<\/td>\nE.3 Power-based methods
E.3.1 General
E.3.2 Average production of WPS <\/td>\n<\/tr>\n
97<\/td>\nE.3.3 Average production of representative comparison WTGSs <\/td>\n<\/tr>\n
98<\/td>\nE.3.4 Data acquisition with comparison chart\/database
E.3.5 Average wind speed of WPS
Figure E.1 \u2013 Step 1: calculation of wind speed based on working WEGS 1 to n <\/td>\n<\/tr>\n
99<\/td>\nE.4 Determination of potential production for a WPS \u2013 examples
E.4.1 Overview
E.4.2 Primary service
E.4.3 Secondary services
Figure E.2 \u2013 Step 2: estimation of lost productionfor WEGS not in FULL PERFORMANCE <\/td>\n<\/tr>\n
100<\/td>\nTable E.1 \u2013 Examples on how to determine potential production <\/td>\n<\/tr>\n
101<\/td>\nAnnex\u00a0F (informative)Balance of plant integration
F.1 WPS functions and services
F.2 Externally required functions and services
F.3 Internally required functions and services <\/td>\n<\/tr>\n
102<\/td>\nF.4 Expansion of the information model for BOP functions and services <\/td>\n<\/tr>\n
103<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Wind energy generation systems – Availability for wind energy generation systems<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2019<\/td>\n104<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":255750,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-255745","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/255745","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/255750"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=255745"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=255745"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=255745"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}