IEC 61853-1:2011 pdf – Photovoltaic(PV) module performance testing and energy rating – Part 1: lrradiance and temperature performance measurements and power rating
IEC 61853-1:2011 pdf – Photovoltaic(PV) module performance testing and energy rating – Part 1: lrradiance and temperature performance measurements and power rating.
NOTE The passlail cnl.ria must consider th. laboratory uncertainty of the measurement, As an example, if the laboratory extended uncertainty of the STC measurement Is ±5 %. then a nominal nameplate rated power greater than 95 $ of the Laboratory measured power woufd meet the pass cnl,ria
After generating the matrix of parameters in Section 8 the modules should be remeasured at STC to verify that the performance is stable.
Following completion of the procedure. a certified report of the performance tests, with measured power characteristics shall be prepared by the test agency in accordance with the procedures of ISO/IEC 17025. Each certificate or test report shall include at least the following information:
a) a title:
b) name and address of the test laboratory and location where the calibration or tests were carried out:
c) unique identification of the certification or report and of each page;
d) name and address of client, where appropriate;
0) description and identification of the item calibrated or tested:
I) characterization and condition of the calibration or test Item;
g) date of receipt of test item and date(s) of calibration or test, where appropriate:
h) identification of calibration or test method used;
i) reference to sampling procedure, where relevant:
j) any deviations from, additions to or exclusions from the calibration or test method, and any other information relevant to a specific calibration or test. such as environmental conditions;
k) a statement as to whether the simplified method in section 8 was used to complete the matrix. If the simplified method was used, the test report should give the values of relative temperature coefficients for maximum power and open circuit voltage for the two different irradiances used to validate the use of the simplified method;
I) measurements, examinations and derived results, including as a minimum table 2 for l. 1’max’ V and Vmax, values of the module thermal coefficients a /J, the average power and the values for each of the three test modules at all reference power conditions (defined in section 7) and the temperature coefficient of module power (W) at the maximum power point (n);
m) a statement of the estimated uncertainty of the calibration or test result (where relevant);
n) a statement as to whether the measured STC power agrees with the manufacturer’s rated power range within the test laboratories measurement uncertainty;
0) a signature and title, oi equivalent Idenhilication of the person(s) accepting responsibility for the content of the certificate or report, and the date of issue:
p) where relevant, a statement to the eflect that the results relate only to the items calibrated or tested;
q) a statement that the certificate or report shall not be reproduced except in full, without the written approval of the laboratory.
7 Power rating conditions
The reference power conditions are shown in Table 1 and are described in more detail in the following subclauses. The first three reference power conditions are defined in IEC 6121511EC 61646. The modules shall be tested and the maximum power determined for the following rating conditions. For each rating condition the Air Mass 1,5 spectral irradiancedistribution as given in lEC 60904-3 shall be used as well as normal incidence irradiance.
7.2sTC (Standard Test Conditions)
-Cell temperature: 25 °C.
– lrradiance: 1 00o w-m-2.
7.3NoCT(Nominal Operating Cell Temperature)
– Cell temperature: NOCT (As determined in accordance with 10.5 of IEC 61215 or
-lrradiance: 800 w-m-2.
7.4LIC(Low lrradiance Condition)-Cell temperature: 25C.
-Irradiance: 20o w-m-2.
7.5HTC (High Temperature Condition)-Cell temperature: 75 °C.
– lrradiance: 1 000 w-m-2.
7.6LTC (Low Temperature Condition)-Cell temperature: 15°C.
-lrradiance: 500 w-m-2.