S4w's Wind Generator Notes

Ok, as I said before I materialized my data logger board that mates with my MPPT controller via the SPI port.

It logs data to an SD Card and the data can be extracted by reading the SD card in a computer or by connecting the data logger to a PC using the USB port.

So far it is logging great but I still have a few rough edges to chip out. I will do so when I get more time. I need to log input voltage and current.

Here are some pics:

Front:

Back:

Ok, here is a picture of my MPPT fully populated:

During this month I have been able to program into it the following features:

Well, Ive been very very busy with my electronics projects particularly with the sine wave inverter. I made many changes to it since I presented the schematics.

One important change that I made was the use of IGBTs instead of MOSFETS. IGBTs provide a much more robust inverter because we are dealing with high voltages. They are made to be tough and have much lower junction to case thermal resistance which helps a lot with the cooling.