Photovoltaic support quality control

Why is QA/QC important for solar projects?

Implementing a comprehensive quality assurance and quality control (QA/QC) program during the pre-manufacturing and manufacturing phases is essential to the long-term success of solar projects, as it ensures that their main components meet the required quality standards to ensure long-term performance

What is the fqc of PV modules?

The FQC refers to quality control of finished PV modules after they are cured. It mainly involves visual inspection, electroluminescence imaging, I-V measurement, ground resistance test and insulation test. This step of inspection involves all testing prior to packing and is performed on each piece of the sample.

What is dtcsc in solar PV?

DTCSC is used to mitigate power quality issues by providing a smoothly variable capacitive reactance to the transmission line. The voltage of the DC link capacitor and the voltage of the PCC, where the Solar PV is linked to the grid network is compared to switch the TCR connected in series with the inductor.

How do PV inverters affect power quality?

As a result of these circumstances, PV inverters may inject harmonics voltages/currents, impacting the power quality at the Point Of Connection (POC), creating a new challenge for the distribution network.

Do PV inverters create harmonics?

However, the investigation into the various sources of harmonics created by PV inverters is still underway. It is crucial to maintain the power quality limits under the standard level according to the IEEE 519, IEEE 1547, and IEC 61000-3-2.

Are PV modules underperforming?

Some PV modules were found to be underperforming by around -4% at the start of PV system operation, as determined by the comprehensive quality assurance work carried out by VDE Renewables.