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BS EN IEC 61400-26-1:2019 Wind energy generation systems - Availability for wind energy generation systems, 2019
- National foreword
- Annex ZA(normative)Normative references to international publicationswith their corresponding European publications
- English [Go to Page]
- CONTENTS
- FOREWORD
- INTRODUCTION
- Figures [Go to Page]
- Figure 1 – Data stakeholders for a wind energy generation system
- 1 Scope
- 2 Normative references
- 3 Terms, definitions and abbreviated terms [Go to Page]
- 3.1 Terms and definitions
- 3.2 Abbreviated terms
- 4 Information model [Go to Page]
- 4.1 Basic model
- 4.2 Information categories
- 4.3 Information category priority
- Figure 2 – Information category overview
- 4.4 Services
- Figure 3 – Information category priority
- 4.5 Service delivery layers [Go to Page]
- 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 – Three-layer information model [Go to Page]
- 4.5.5 Lost service
- 4.6 Modelling multiple services
- Figure 5 – Information categories, definitions for layer 2 and layer 3,mandatory categories
- 4.7 Determination of information categories for the WPS
- Figure 6 – Examples of an information model representing active energy,reactive energy, high and low frequency response services
- 4.8 Application of the information model to components of the WEGS
- 5 Information categories [Go to Page]
- 5.1 INFORMATION AVAILABLE
- 5.2 OPERATIVE
- 5.3 IN SERVICE [Go to Page]
- 5.3.1 General
- 5.3.2 FULL PERFORMANCE
- 5.3.3 PARTIAL PERFORMANCE
- 5.3.4 READY STANDBY
- 5.4 OUT OF SERVICE [Go to Page]
- 5.4.1 General
- 5.4.2 TECHNICAL STANDBY
- 5.4.3 OUT OF ENVIRONMENTAL SPECIFICATION
- 5.4.4 REQUESTED SHUTDOWN
- 5.4.5 OUT OF ELECTRICAL SPECIFICATION
- 5.5 NON-OPERATIVE [Go to Page]
- 5.5.1 General
- 5.5.2 SCHEDULED MAINTENANCE
- 5.5.3 PLANNED CORRECTIVE ACTION
- 5.5.4 FORCED OUTAGE
- 5.5.5 SUSPENDED
- 5.6 FORCE MAJEURE
- 5.7 INFORMATION UNAVAILABLE
- Annex A (informative)Entry and exit conditions overview for WEGS [Go to Page]
- Figure A.1 – Overview of the entry and exit conditions of all mandatory information categories described in this document
- Annex B (informative)Optional information categories for WEGS information model –illustrative explanation and examples [Go to Page]
- B.1 General
- B.2 PARTIAL PERFORMANCE – optional categories [Go to Page]
- B.2.1 Introduction of optional categories
- B.2.2 Derated
- B.2.3 Degraded
- Figure B.1 – Information category overview – mandatory and optional
- B.3 OUT OF ENVIRONMENTAL SPECIFICATION – optional categories [Go to Page]
- B.3.1 Introduction of optional categories
- B.3.2 Calm winds
- B.3.3 Other environmental
- B.4 PLANNED CORRECTIVE ACTION – optional categories [Go to Page]
- B.4.1 Introduction of optional categories
- B.4.2 Retrofit
- B.4.3 Upgrade
- B.4.4 Other planned corrective action
- B.5 FORCED OUTAGE – optional category [Go to Page]
- B.5.1 Introduction of optional categories
- B.5.2 Response
- Figure B.2 – Workflow breakdown structure [Go to Page]
- B.5.3 Diagnostic
- B.5.4 Logistic
- B.5.5 Repair
- B.6 SUSPENDED – optional categories [Go to Page]
- 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
- B.7 Considerations of competing assignment of lost service
- Figure B.3 – Example of simultaneous degrading and derating
- Annex C (informative)Examples of availability indicators [Go to Page]
- C.1 General [Go to Page]
- C.1.1 Introduction to the scope of this annex
- C.1.2 Time-based availability
- C.1.3 Production-based availability
- C.1.4 Mapping of availability and unavailability
- C.2 Time-based availability [Go to Page]
- C.2.1 General
- C.2.2 Time-based availability – "operational availability"
- Tables [Go to Page]
- Table C.1 – Example of mapping of available and unavailableinformation categories [Go to Page]
- C.2.3 Time based availability – "technical availability"
- C.3 Production-based availability [Go to Page]
- C.3.1 General
- C.3.2 Production-based availability – "operational availability"
- C.3.3 Production-based availability – "technical availability"
- C.4 Capacity factor and other performance indicators [Go to Page]
- C.4.1 General
- C.4.2 Capacity factor
- C.4.3 Production ratio
- C.4.4 Mean-value based information
- Annex D (informative)Verification scenarios – examples [Go to Page]
- D.1 General
- D.2 Time-based scenarios for a WTGS [Go to Page]
- D.2.1 Introduction to verification scenarios
- Table D.1 – Verification scenarios – time allocation to information categories [Go to Page]
- D.2.2 Scenario 1 – communication aspects
- Table D.2 – Verification scenarios – communication aspects [Go to Page]
- D.2.3 Scenario 2 – partial operational aspects
- Table D.3 – Verification scenarios – partial operational aspects [Go to Page]
- D.2.4 Scenario 3 – maintenance aspects
- Table D.4 – Verification scenarios – maintenance aspects [Go to Page]
- D.2.5 Scenario 4 – operational aspects
- Table D.5 – Verification scenarios – operational aspects [Go to Page]
- D.2.6 Scenario 5 – grid/electrical network aspects
- Table D.6 – Verification scenarios – grid / electrical network aspects [Go to Page]
- D.2.7 Scenario 6 – environmental aspects
- Table D.7 – Verification scenarios – environmental aspects
- D.3 Production-based scenarios for a WTGS [Go to Page]
- D.3.1 Introduction to verification scenarios
- D.3.2 Scenarios under FULL PERFORMANCE
- Table D.8 – FULL PERFORMANCE: by definition, actual energyproduction is equal to the potential energy production
- Table D.9 – FULL PERFORMANCE: actual energy production is less than potential energy production but within agreed uncertainty
- Table D.10 – FULL PERFORMANCE: actual energy productiongreater than potential energy production [Go to Page]
- D.3.3 Scenarios under PARTIAL PERFORMANCE
- Table D.11 – PARTIAL PERFORMANCE – derated: grid constraint
- Table D.12 – PARTIAL PERFORMANCE – derated: grid constraint,actual energy production less than requested
- Table D.13 – Partial performance – derated: output constraintdue to excessive noise of the WTGS
- Table D.14 – PARTIAL PERFORMANCE – derated:dirt on blades constrained performance [Go to Page]
- D.3.4 Scenarios under READY STANDBY
- Table D.15 – PARTIAL PERFORMANCE – derated: ice accumulated on blades has been detected, WTGS is allowed to operate although the power performance is ‘derated’
- Table D.16 – PARTIAL PERFORMANCE – degraded:WTGS deterioration known to the WTGS user
- Table D.17 – READY STANDBY: avian detection system [Go to Page]
- D.3.5 Scenarios under TECHNICAL STANDBY
- Table D.18 – READY STANDBY: Automatic generation control – var support
- Table D.19 – TECHNICAL STANDBY: WTGS is cable unwinding [Go to Page]
- D.3.6 Scenarios under OUT OF ENVIRONMENTAL SPECIFICATION
- Table D.20 – OUT OF ENVIRONMENTAL SPECIFICATION – calm winds
- Table D.21 – OUT OF ENVIRONMENTAL SPECIFICATION – high winds
- Table D.22 – OUT OF ENVIRONMENTAL SPECIFICATION – temperature too high [Go to Page]
- D.3.7 Scenarios under REQUESTED SHUTDOWN
- Table D.23 – REQUESTED SHUTDOWN: ice on blades is detected and WTGS user requests shutdown of the WTGS
- Table D.24 – REQUESTED SHUTDOWN: sector management [Go to Page]
- D.3.8 Scenarios under OUT OF ELECTRICAL SPECIFICATION
- Table D.25 – REQUESTED SHUTDOWN: noise nuisance – warranty claim
- Table D.26 – OUT OF ELECTRICAL SPECIFICATION: low voltage [Go to Page]
- D.3.9 Scenarios under SCHEDULED MAINTENANCE
- D.3.10 Scenarios under PLANNED CORRECTIVE ACTION
- Table D.27 – 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 – PLANNED CORRECTIVE ACTION: WTGS manufacturer or maintenance provider performs corrective action to the WTGS at his discretion outside the time allowance of scheduled maintenance [Go to Page]
- D.3.11 Scenarios under FORCED OUTAGE
- Table D.29 – FORCED OUTAGE: short circuit
- Table D.30 – FORCED OUTAGE: corrosion [Go to Page]
- D.3.12 Scenarios under SUSPENDED
- Table D.31 – FORCED OUTAGE: overheating
- Table D.32 – SUSPENDED: suspended repair work due to storm with lightning [Go to Page]
- D.3.13 Scenarios under FORCE MAJEURE
- D.4 Production-based scenarios for a WTGS – calculation of lost production [Go to Page]
- D.4.1 Introduction to verification scenarios
- D.4.2 Production-based availability algorithm based on mandatory information categories ("operational availability")
- Table D.33 – FORCE MAJEURE: no access to the WTGSdue to flooding impacting infrastructure
- Table D.34 – Production-based availability algorithm based on mandatory information categories only,"operational availability" [Go to Page]
- D.4.3 Production-based availability algorithm – including optional categories ("technical availability")
- Table D.35 – Production-based availability algorithm –including optional categories, "technical availability"
- D.5 Production-based scenarios for a WPS [Go to Page]
- D.5.1 Introduction to verification scenarios
- D.5.2 Example 1: Normal operation – all WPS
- D.5.3 Example 2: Normal operation – part of WPS
- Table D.36 – Scenario, Example 1: Normal operation – all WPS [Go to Page]
- D.5.4 Example 3: Contaminated WTGSs blades – all WPS
- Table D.37 – Scenario, Example 2: Normal operation – part of WPS [Go to Page]
- D.5.5 Example 4: Contaminated WTGSs blades – part of WPS
- Table D.38 – Scenario, Example 3: Contaminated WTGSs blades – all WPS [Go to Page]
- D.5.6 Example 5: BOP limitations – all WPS
- Table D.39 – Scenario, Example 4: Contaminated WTGSs blades – part of WPS [Go to Page]
- D.5.7 Example 6: BOP limitations – part of WPS
- Table D.40 – Scenario, Example 5: BOP limitations – all WPS [Go to Page]
- D.5.8 Example 7: "Spinning reserve" – part of WPS
- Table D.41 – Scenario, Example 6: BOP limitations – part of WPS [Go to Page]
- D.5.9 Example 8: "Spinning reserve" – all WPS
- Table D.42 – Scenario, Example 8: "Spinning reserve" – part of WPS [Go to Page]
- D.5.10 Example 9: Noise restrictions – warranty related
- Table D.43 – Scenario, Example 7: "Spinning reserve" – all WPS
- Table D.44 – Scenario, Example 9: Noise restrictions – all WPS [Go to Page]
- D.5.11 Example 10: Noise restrictions – environmentally related
- Table D.45 – Scenario, Example 10: Noise restrictions – all WPS [Go to Page]
- D.5.12 Example 11: Ice storm on grid – all WPS
- Table D.46 – Scenario, Example 11: Ice storm on grid – all WPS
- Annex E (informative)Possible methods for determination of potential WEGS energy production [Go to Page]
- E.1 General
- E.2 Specific power curve and velocities methods [Go to Page]
- E.2.1 General
- E.2.2 Nacelle anemometer wind measurement with power curve
- E.2.3 Upstream wind measurement with power curve
- E.2.4 Met mast wind measurement with correction factors and power curve
- E.3 Power-based methods [Go to Page]
- E.3.1 General
- E.3.2 Average production of WPS
- E.3.3 Average production of representative comparison WTGSs
- E.3.4 Data acquisition with comparison chart/database
- E.3.5 Average wind speed of WPS
- Figure E.1 – Step 1: calculation of wind speed based on working WEGS 1 to n
- E.4 Determination of potential production for a WPS – examples [Go to Page]
- E.4.1 Overview
- E.4.2 Primary service
- E.4.3 Secondary services
- Figure E.2 – Step 2: estimation of lost productionfor WEGS not in FULL PERFORMANCE
- Table E.1 – Examples on how to determine potential production
- Annex F (informative)Balance of plant integration [Go to Page]
- F.1 WPS functions and services
- F.2 Externally required functions and services
- F.3 Internally required functions and services
- F.4 Expansion of the information model for BOP functions and services
- Bibliography [Go to Page]