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

Name:IEC TS 62600-301:2019   Standard name:Marine energy - Wave, tidal and other water current converters - Part 301: River energy resource assessment
Standard number:IEC TS 62600-301:2019   language:English language
Release Date:11-Sep-2019   technical committee:TC 114 - Marine energy - Wave, tidal and other water current converters
Drafting committee:ahG 13 - TC 114/ahG 13   ICS number:01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION

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
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
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in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also pa
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