{"id":361621,"date":"2024-10-20T01:36:48","date_gmt":"2024-10-20T01:36:48","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-60904-12020\/"},"modified":"2024-10-26T02:30:16","modified_gmt":"2024-10-26T02:30:16","slug":"bs-en-iec-60904-12020","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-60904-12020\/","title":{"rendered":"BS EN IEC 60904-1:2020"},"content":{"rendered":"

IEC 60904-1:2020 describes procedures for the measurement of current-voltage characteristics (I-V<\/em> curves) of photovoltaic (PV) devices in natural or simulated sunlight. These procedures are applicable to a single PV solar cell, a sub-assembly of PV solar cells, or a PV module. This document is applicable to non-concentrating PV devices for use in terrestrial environments, with reference to (usually but not exclusively) the global reference spectral irradiance AM1.5 defined in IEC 60904-3. This third edition cancels and replaces the second edition published in 2006. The main changes with respect to the previous edition are as follows: – Updated scope to include all conditions. – Added terms and definitions. – Reorganised document to avoid unnecessary duplication. – Added data analysis clause. – Added informative annexes (area measurement, PV devices with capacitance, dark I-V curves and effect of spatial non-uniformity of irradiance).<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
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2<\/td>\nundefined <\/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
9<\/td>\nFOREWORD <\/td>\n<\/tr>\n
11<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
12<\/td>\n3 Terms and definitions <\/td>\n<\/tr>\n
13<\/td>\n4 General requirements
4.1 General
Figures
Figure 1 \u2013 Schematic current-voltage characteristic (I-V curve) depicting typical I-V curve parameters short-circuit current (Isc), open-circuit voltage (Voc), maximum power (Pmax), voltage at maximum power (VPmax) and current at maximum power (IPmax) <\/td>\n<\/tr>\n
14<\/td>\n4.2 Measurements
Figure 2 \u2013 Schematic power-voltage characteristic (P-V curve) depicting typical I-V curve parameters open-circuit voltage (Voc), maximum power (Pmax)and voltage at maximum power (VPmax) <\/td>\n<\/tr>\n
15<\/td>\n4.3 Stabilisation
4.4 Equivalence to steady-state performance
4.5 Reporting conditions <\/td>\n<\/tr>\n
16<\/td>\n4.6 Translation from test conditions to reporting conditions
5 Apparatus <\/td>\n<\/tr>\n
17<\/td>\n6 Measurements in natural sunlight
6.1 General <\/td>\n<\/tr>\n
18<\/td>\n6.2 Test procedure <\/td>\n<\/tr>\n
19<\/td>\n7 Measurement in simulated sunlight
7.1 General <\/td>\n<\/tr>\n
20<\/td>\n7.2 Test procedure <\/td>\n<\/tr>\n
21<\/td>\n8 Data analysis
8.1 Translation from test conditions to reporting conditions <\/td>\n<\/tr>\n
22<\/td>\n8.2 Extracting I-V curve parameters
8.3 Evaluating measurement uncertainty <\/td>\n<\/tr>\n
23<\/td>\n9 Test report <\/td>\n<\/tr>\n
24<\/td>\nAnnex A (informative) Device area measurement
A.1 General
A.2 Definition of device area
A.2.1 General
A.2.2 Total area (At)
A.2.3 Aperture area (Aap)
A.2.4 Designated illumination area (Ada)
A.3 Area measurement of PV devices <\/td>\n<\/tr>\n
25<\/td>\nFigure A.1 \u2013 PV module (rectangular)
Figure A.2 \u2013 PV module of different geometries (pentagon, trapezoid) <\/td>\n<\/tr>\n
26<\/td>\nFigure A.3 \u2013 PV cell (cut corners)
Figure A.4 \u2013 PV cell (rounded corners, circle) <\/td>\n<\/tr>\n
27<\/td>\nAnnex B (informative) Measurement of current-voltage characteristics for PV devices with capacitance
B.1 General
B.2 Definitions
B.3 Relative error due to capacitance <\/td>\n<\/tr>\n
28<\/td>\nFigure B.1 \u2013 Equivalent circuit diagram for device exhibiting a capacitance effect
Figure B.2 \u2013 Three I-V curves (steady-state, forward sweep and reverse sweep) showing the effect of device capacitance on the curve shape <\/td>\n<\/tr>\n
29<\/td>\nB.4 Methodologies to suppress the measurement error
B.4.1 General
B.4.2 Measurement at steady-state conditions
Figure B.3 \u2013 Deviation of maximum power (Pmax) determined from I-V curve due to the effect of device capacitance with respect to steady-state resultas a function of sweep rate <\/td>\n<\/tr>\n
30<\/td>\nB.4.3 Measurement at quasi-steady-state conditions
B.4.4 Common methods for characterisation of capacitive PV devices <\/td>\n<\/tr>\n
31<\/td>\nB.5 Report
B.6 Reference documents <\/td>\n<\/tr>\n
33<\/td>\nAnnex C (informative) Measurement of photovoltaic current-voltage characteristics without illumination (dark I-V)
C.1 General
Figure C.1 \u2013 I-V characteristics without illumination (dark I-V curve) <\/td>\n<\/tr>\n
34<\/td>\nC.2 Apparatus
C.3 Procedure
C.3.1 General
Figure C.2 \u2013 I-V characteristics under illumination (I-V curve) <\/td>\n<\/tr>\n
35<\/td>\nC.3.2 Dark I-V curve measurements <\/td>\n<\/tr>\n
36<\/td>\nAnnex D (informative) Influence of spatial non-uniformity of irradiance on I-V curve parameters
D.1 General <\/td>\n<\/tr>\n
37<\/td>\nD.2 Reference documents
Figure D.1 \u2013 Monte-Carlo simulation of a 60-cell PV module with high shunt cell type <\/td>\n<\/tr>\n
38<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Photovoltaic devices – Measurement of photovoltaic current-voltage characteristics<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2020<\/td>\n40<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":361627,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-361621","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\/361621","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\/361627"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=361621"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=361621"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=361621"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}