IEC TS 62600-300:2019

Marine energy - Wave, tidal and other water current converters - Part 300: Electricity producing river energy converters - Power performance assessment

IEC TS 62600-300:2019 provides:
· A systematic methodology for evaluating the power performance of river current energy converters (RECs) that produce electricity for utility scale and localized grids;
· A definition of river energy converter rated capacity and rated water speed;
· A methodology for the production of power curves for the river energy converters in consideration; and
· A framework for the reporting of results.
Exclusions from the scope of this document are as follows:
· RECs that provide forms of energy other than electrical energy unless the other form is an intermediary step that is converted into electricity by the river energy converter;
· Resource assessment, that will be addressed separately in the River Energy Resource Assessment Technical Specification;
· Scaling of any measured or derived results;
· Power quality issues;
· Any type of performance other than power and energy performance; and
· The combined effect of multiple river energy converter arrays.

General Information

• Status: Published
• Publication Date: 11-Sep-2019
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 27.140 - Hydraulic energy engineering
• Technical Committee: TC 114 - Marine energy - Wave, tidal and other water current converters
• Drafting Committee: ahG 12 - TC 114/ahG 12
• Current Stage: PPUB - Publication issued
• Start Date: 16-Sep-2019
• Completion Date: 12-Sep-2019

Standards Content (Sample)

IEC TS 62600-300 ®
Edition 1.0 2019-09
TECHNICAL
SPECIFICATION
colour
inside
Marine energy – Wave, tidal and other water current converters –
Part 300: Electricity producing river energy converters – Power performance
assessment
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IEC TS 62600-300 ®
Edition 1.0 2019-09
TECHNICAL
SPECIFICATION
colour
inside
Marine energy – Wave, tidal and other water current converters –

Part 300: Electricity producing river energy converters – Power performance

assessment
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 27.140 ISBN 978-2-8322-7293-0

– 2 – IEC TS 62600-300:2019 © IEC 2019
CONTENTS
CONTENTS . 2
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Symbols, units and abbreviated terms . 9
4.1 Symbols and units. 9
4.2 Abbreviated terms . 11
5 Overview . 11
6 River current energy converter (REC) description . 12
6.1 General . 12
6.2 Operational parameters . 12
7 Demonstrated performance . 12
7.1 General . 12
7.2 Site and test conditions . 12
7.2.1 General . 12
7.2.2 Bathymetry . 13
7.2.3 Flow conditions . 13
7.2.4 REC test site constraints . 14
7.2.5 External constraints . 15
7.3 Test equipment . 15
7.3.1 Electric power measurement . 15
7.3.2 River current measurement . 16
7.3.3 Data acquisition . 17
7.4 Measurement procedures . 17
7.4.1 General . 17
7.4.2 Operational status . 17
7.4.3 Data collection . 18
7.4.4 Instrument calibration . 18
7.4.5 Data processing . 18
7.4.6 Averaging . 18
7.4.7 Test data properties . 19
7.4.8 Electric power measurement . 19
7.4.9 Incident resource measurement . 20
7.5 Demonstrated performance at a tidal influenced river site . 23
8 Tested performance . 23
8.1 General . 23
8.2 Towing tank tests . 25
8.2.1 General . 25
8.2.2 Test facility description . 25
8.2.3 Test equipment . 25
8.2.4 Measurement procedures . 25
8.3 Push and pull tests . 26
8.3.1 General . 26
8.3.2 Test setup and site description . 26
8.3.3 Test equipment . 26

8.3.4 Measurement procedures . 26
8.4 Flume tests . 27
8.4.1 General . 27
8.4.2 Test facility description . 27
8.4.3 Test equipment . 27
8.4.4 Measurement procedures . 28
9 Derived results . 29
9.1 General . 29
9.2 Water density . 29
9.3 Data processing . 29
9.3.1 Filtering . 29
9.3.2 Exclusion . 29
9.3.3 Correction . 29
9.4 Calculation of the power curve . 30
9.4.1 General description of the method of bins . 30
9.4.2 Detailed description of method of bins . 32
9.4.3 Interpolation . 36
9.4.4 Extrapolation . 36
9.4.5 Uncertainty calculation . 37
9.5 Mean river current speed shear profile . 37
9.5.1 General . 37
9.5.2 Current speed vertical shear profile . 37
9.5.3 Current speed horizontal shear profile . 38
9.6 RMS fluctuating river current speed . 39
9.7 Current direction at centroid of projected capture area . 40
9.8 Calculation of the REC overall efficiency . 41
10 Test reporting . 42
10.1 General . 42
10.2 REC report . 42
10.3 REC test site report . 43
10.4 Electrical grid and load report . 44
10.5 Test equipment report . 45
10.6 Measurement procedure report . 45
10.7 Tested performance report . 45
10.8 Presentation of measured data . 45
10.9 Presentation of the power curve . 47
10.10 Presentation of the REC overall efficiency . 49
10.11 Uncertainty assumptions . 51
10.12 Deviations from the procedure . 51
Annex A (normative) Categories of error . 52
Annex B (informative) Combining demonstrated and tested performance data to

create a single power curve . 53
Bibliography . 54

Figure 1 – Current profiler deployment position for placement A (plan view) . 21
Figure 2 – Current profiler deployment position for placements A and B (placement A:
profile view, placement B: plan view) . 22
This wide device has different lengths D and W. . 22
E
– 4 – IEC TS 62600-300:2019 © IEC 2019
Figure 3 – Current profiler deployment
...