Is there a relationship between the open circuit voltage of a solar cell and the reverse breakdown v

This problem is not limited to solar cells, it is the same for any battery.

The open circuit voltage is determined by the difference in equivalent electromotive force

< p>In addition to overcoming the difference in equivalent electromotive force, the reverse breakdown voltage

It is also necessary to overcome the reverse electric field integrated after the polarization of the P-N junction, therefore the absolute value of this The latter should be relatively large

After the DC negative pole of the 500 kW inverter connected to the grounded PV grid, the AC test output lightning protection module failed. What is the reason ?

This use is unreasonable. Supercapacitors cannot be used in case of overvoltage. Long-term use will damage the supercapacitor and may cause a breakdown.

It is recommended to connect several superconductorsnsators in parallel. If it is a 6V solar panel, at least three supercapacitors must be connected in series. A balancing circuit should be carried out during the series connection process to avoid. overvoltage of a single supercapacitor.

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Since the ground and the negative pole of direct current are connected together, and one end of the protection module against the AC output lightning is connected to the AC output and the other end is grounded, then when the upper tube of the IGBT is turned on, the positive and negative poles equivalent to the DC are added to the lightning protection module. AC lightning, which exceeds its withstand voltage value, so it breaks down Haha, it will be easy to understand if you can draw a circuit diagram