I conduct free surveys of solar stations , as a result of which sneakers fly at me, they make comments to me that in order to present warranty claims, it is the power drop of the solar panel that needs to be measured, to which the warranty is mainly tied. So I came to the need to acquire my own device for taking the IV Curve of the solar panel. How to make it yourself for ~ $ 100, and what it gives - next
Introduction
Unfortunately, testing solar panels even with a professional device is not a sufficient condition for a manufacturer. For a full-fledged legal status and the ability to conduct a dialogue on an equal footing with manufacturers of solar panels, you need to pass the TÜV SÜD certification. There is not a single certified laboratory in Ukraine. I wrote to the head office of TÜV SÜD, but something must have gone wrong.
In total, there was no point in throwing out> 1K $ for a beautiful toy (without certification), the algorithm for constructing the I - V characteristic is described in detail, why not build a device for your bike ?
But while I was reading about algorithms, I came across IV Swinger 2 , where they already made a moped, the creation of which is painted step by step and very clearly. At the same time, the creator of the instruction is a very intelligent and sociable person, for which special thanks to him.
The characteristics of this modification cover all modern panels, unlike older versions of professional meters. Removing the CVC of the solar panel takes no more than a couple of seconds. The only drawback is weak scalability in voltage, and in one fell swoop they cannot measure the parameters of the entire string of solar panels, only a single copy. But even after removing the parameters of the entire string, you still need to find the very panel that influenced the overall result so much, and this is exactly what we already know how!
Assembly
Further, the process is simple, but extended in time.
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If you have doubts about the operation of your solar station, I consider this or a similar device extremely necessary and in demand. Again, local suppliers confirm the warranty for non-certified devices as well.
I began to post the developments and results of the survey of solar stations in my blog . For those wishing to delve deeper into the topic - there is also a live forum on home solar power plants , join us.
All peace and sunny sky over your head!