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[SOLVED] MPPT and control battery

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delo

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Hello , I have a project to realize a MPPT controller .
The materials :
- solar panel : 16V = Vppm CIPP = 0.6A
-battery 12V 7Ah
Question:
- How associated algorithm P & O and battery control ?
-Is That Vref = Vpv ?
- can you give an example of algorithm P & O + battery charge control ?
Bye
 

Look further down this column and you'll see a list of related threads. Click on them and it should lead you to helpful information.

In general, MPPT is used during bulk charging. As the battery reaches full, you taper off charge rate.
 

I’d just use a sepic, close the loop on input current, so have an external error amplifier “Looking” at the input current……set the reference voltage on the error amplifier to give you your 0.6A……use the micro to monitor the actual current being drawn……..when its dark, it wont be able to draw 0.6A, and your micro will be able to tell this by noting that the vin comes dropping down…so when that happens go into low power mode, where the panel just trickles up its output cap, and when that’s full, shovel it through the sepic into your battery…..keep doing that, until the sun next shines and your system can “throughput” o.6a without the panel vout dropping out.
 

There is a long detailed thread on this very topic here:
https://www.edaboard.com/threads/348769/#post1497725

This is the very simple MPPT algorithm you need to charge a battery:

solarflow.jpeg
 

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