IEC TS 62600-301:2019

Marine energy - Wave, tidal and other water current converters - Part 301: River energy resource assessment

IEC TS 62600-301:2019 provides:
· Methodologies that ensure consistency and accuracy in the determination of the theoretical river energy resource at sites that may be suitable for the installation of River Energy Converters (RECs);
· Methodologies for producing a standard current speed distribution based on measured, historical, or numerical data, or a combination thereof, to be used in conjunction with an appropriate river energy power performance assessment;
· Allowable data collection methods and/or modelling techniques; and
· A framework for reporting results.
The document explicitly excludes:
· Technical or practical resource assessments;
· Resource characterisation;
· Power performance assessment of river energy converters; and
· Environmental impact studies, assessments, or similar.

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 13 - TC 114/ahG 13
• Current Stage: PPUB - Publication issued
• Start Date: 10-Sep-2019
• Completion Date: 12-Sep-2019

Standards Content (Sample)

IEC TS 62600-301 ®
Edition 1.0 2019-09
TECHNICAL
SPECIFICATION
Marine energy – Wave, tidal and other water current converters –
Part 301: River energy resource assessment
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IEC TS 62600-301 ®
Edition 1.0 2019-09
TECHNICAL
SPECIFICATION
Marine energy – Wave, tidal and other water current converters –

Part 301: River energy resource assessment

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 27.140 ISBN 978-2-8322-7273-2

– 2 – IEC TS 62600-301:2019 © IEC 2019
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
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 . 9
5 Methodology overview . 10
5.1 Study classification . 10
5.2 Project location identification . 10
5.3 Resource definition . 10
5.4 Methodology . 10
5.4.1 General . 10
5.4.2 Flow duration curves . 11
5.4.3 Velocity duration curves. 11
5.4.4 Energy production . 14
6 Flow Duration Curves . 14
6.1 General . 14
6.2 Measurement-based Flow Duration Curve . 14
6.3 Hydrologic modelling . 15
6.3.1 General . 15
6.3.2 Stochastic modelling . 15
6.3.3 Deterministic modelling . 16
6.4 Computing Flow Duration Curves . 17
7 Velocity Duration Curves . 19
7.1 General . 19
7.2 Measurement-based Velocity Duration Curve . 19
7.3 Hydrodynamic-model-based Velocity Duration Curve . 21
7.3.1 General . 21
7.3.2 Model selection . 21
7.3.3 Model domain . 22
7.3.4 Grid resolution . 22
7.3.5 Model inputs . 23
7.3.6 Boundary conditions and forcing . 24
7.3.7 Field-data requirements . 24
7.3.8 Velocity measurements . 25
7.3.9 Calibration . 25
7.3.10 Validation . 26
7.3.11 Energy extraction. 26
7.3.12 Computation of model-based velocities . 27
7.3.13 Calculating the Velocity Duration Curve . 28
8 Reporting requirements . 29
8.1 General . 29
8.2 Technical report . 30
8.2.1 General . 30

8.2.2 Development of the Flow Duration Curve . 30
8.2.3 Development of the Velocity Duration Curve . 31
8.2.4 AEP calculation . 31
8.2.5 Additional reporting . 31
8.3 Digital database . 32
8.4 Test equipment report . 32
8.5 Measurement procedure report . 32
8.6 Deviations from the procedure . 32
Annex A (normative)  Guidelines for field data measurements . 33
Bathymetry . 33
Water level . 33
Discharge . 33
General . 33
Stage-discharge relationship . 34
Current profiler measurements . 34
General . 34
Fixed-location velocity profile . 34
Discharge and velocity transect survey . 35
Instrument configuration . 35
Correcting for clock drift . 36
Depth quality control . 36
Velocity quality control . 36
Turbulence . 36
Annex B (informative)  Calculation of energy production . 37
General . 37
Energy production . 37
Annex C (normative)  Evaluation of uncertainty . 39
General . 39
Uncertainty analysis . 39
Modelling uncertainty . 40
Bibliography . 41

Figure 1 – Flowchart outlining the methodology for a resource assessment . 12
Figure 2 – Types of hydrologic models for simulating discharge . 15
Figure 3 – Example FDC (curve) and assumed non-uniform discretisation (circles) . 18
Figure 4 – Example REC power-weighted speed versus discharge relationship using
discretised discharge values (circles) in Figure 3 . 28
Figure 5 – Example VDC using the transfer function derived from the curve fit shown
in Figure 4 and the full FDC shown in Figure 3 . 29
Figure B.1 –Power exceedance probabilities . 37

Table 1 – Outline of measurements. 13
Table C.1 − List of uncertainty components . 40

– 4 – IEC TS 62600-301:2019 © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MARINE ENERGY – WAVE, TIDAL AND OTHER WATER CURRENT
CONVERTERS –
Part 301: River energy resource assessment

FOREWORD
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