So, I'm currently trying to simulate a solar panel (datasheet is in attachments) in LTSpice. I posted the screenshots below of my schematics I drew and also put the LTSpice file in attachment. Now the simulation works great without the bypass diodes, but when I implement these bypass diodes the results are much lower. The bypass diodes are just normal diodes but when I use zener diodes the results are even worse, no matter what parameters I give. The parameters of the zener diodes used in the picture are: average forward current = 20A and the breakdown voltage is 30V. I'm no expert with these bypass diodes, so is there anyone who can help me with this problem?
without bypass diodes:
![1712494637902.png 1712494637902.png](https://forum.allaboutcircuits.com/data/attachments/306/306977-810c1528cd02be9b77e13b080be7f3a4.jpg)
with bypass diodes:
![1712494790134.png 1712494790134.png](https://forum.allaboutcircuits.com/data/attachments/306/306979-a56b5d0c72782b33cfae1df8c8824eea.jpg)
with zener diodes as bypass diodes:
![1712495137895.png 1712495137895.png](https://forum.allaboutcircuits.com/data/attachments/306/306983-186f822c0877be3083ae0aab373a430b.jpg)
Kind regards
August
without bypass diodes:
![1712494637902.png 1712494637902.png](https://forum.allaboutcircuits.com/data/attachments/306/306977-810c1528cd02be9b77e13b080be7f3a4.jpg)
with bypass diodes:
![1712494790134.png 1712494790134.png](https://forum.allaboutcircuits.com/data/attachments/306/306979-a56b5d0c72782b33cfae1df8c8824eea.jpg)
with zener diodes as bypass diodes:
![1712495137895.png 1712495137895.png](https://forum.allaboutcircuits.com/data/attachments/306/306983-186f822c0877be3083ae0aab373a430b.jpg)
Kind regards
August
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