Senior Member
Joined: 10/02/2015
Location: United KingdomPosts: 282
| Posted: 07:27pm 27 Jun 2023 |
I'll be interested to see how you get on with this. If my understanding is correct if you push current through the panel in the normal directon (i.e. positive current coming out of the panels positive lead same as when it's generating power) then that's forward biasing the cells so presumably if you go up to the normal panel current you would end up with something like the voc drop across the panel (0.6-0.7v per cell)?
If you try pushing the current the other way they presumably don't conduct until you reach the zenner voltage, which would give you a higher voltage, and so a higher power per amp, but I've no idea what the zenner voltage would be.
Definitely need to remove the bypass diodes though.
Of course you would need to keep the cells below the max temp for silicon diodes though or they'll go short circuit.
Edited 2023-06-28 05:30 by mab1