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Forum Index : Electronics : Builiding of a complete 6kW PV inverter with MPPT chargers

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KeepIS

Guru

Joined: 13/10/2014
Location: Australia
Posts: 1405
Posted: 08:52pm 16 May 2024
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Very nice, from what I have observed on my panels and chargers, 0.5 sec should cover it.
It's all too hard.
Mike.
 
-dex-
Regular Member

Joined: 11/01/2024
Location: Poland
Posts: 50
Posted: 07:53am 21 May 2024
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Small update about OVP mppt circuit. As I said earlier, I have a relay on the board that turns on/off the BAT-12V converter that powers all MPPTs. The converter has low ESR capacitors at the input, which stuck the relay together during one of the subsequent tests. So I'm making a small soft start circuit: a serial NTC thermistor, or a resistor + relay powered from the output.


Moreover, in this casing I placed a caps mppt pre-charging system - behind the kilovac relay, activated manually with a switch.




 
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