We need to conect two Smart MPPT 150/100 in parallel mode, both sides (PV and Battery)
There is not information about it, please coud You help me.
In advance, thanks so much
Jorge G
asked
Can or I cant to connect two MPPT in parallel mode in the PV Side?
On the battery side it is no problem but on the PV side.
Both charge controllers try to find the MPP and this ist not working.
Why do you (think you) "need" to do that?
Please could You explain me why it could be a problem?, is it destructive? If the problem is MPP, because each controller will try to get their best performance. even that it would work, perhaps the controller doesnt share the load but.. must work.
Why do you (think you) "need" to do that?, because we have a big PV array and i have not option to split it in two arrays.
Could Ypu tell me if we can configure the controllers to work like PWM and not in MPPT mode?
The load current is around 1000W in 48 Volts, so we need to recharge with at less 120Amp.
@JORGE GONZALEZ, it is not possible to connect two separate MPPT controllers to the same PV array. You can size up to a larger controller as appropriate to your array size, or you can split your array into a manageable size for the two 150/100s that you reference to handle, but these are the only two options.
It is also not possible to configure an MPPT controller to be a PWM controller; these are two vastly different types of SCC that behave in entirely different ways.
Really I understood your answer, but in this moment i have not option to get a larger controller.
Please your advice, It could be destructive? or will just work just one of them?
I don't think it is destructive but you will get much less power.
Thanks so much for your reply,
Really in this moment I cant split the PV array, but soon I will doit. Just I need to connect it in a parallel mode for few weeks.
