mjohnson12
New Member
For a solar project I'm doing for school I was interested in building an MPPT in order to save some money. Basically I want to construct an off grid solar generator for adverse weather conditions for temporary relief. I was going to use two 12V 100Ah (not sure if series or parallel would be better). I planned on using a 250W panel which would likely have similar characteristics to this one
**broken link removed**
I've been researching MPPT design and most of them seem to be for 12V panels and lower power panels. I particularly liked this design
https://www.electro-tech-online.com/custompdfs/2012/11/Solar20Charger.pdf
but it's only for 10-40W panels. It says modifications could be made for higher wattage panels, but I imagine this goes deeper than changing the resistor values for the voltage divider.
I also read that PIC controllers might be better suited for this purpose due to an internal ADC converter and an internal clock. Another design I saw on this forum was based on an Arduino board, which is fine for programming, but I'm not allowed to use the board in the final design. Here it is:
http://www.timnolan.com/index.php?page=arduino-ppt-solar-charger
Basically I'm wondering if the protoshield is really necessary? And where could I learn to display the output onto an LCD screen?
http://www.scribd.com/doc/51163743/Solar-Battery-Charger-With-MPPT-Using-Microcontroller
The above design seems geared towards a high voltage panel, which is useful, but doesn't provide the microcontroller code. Does anyone know a good resource/tutorial for learning this stuff?
Any help would greatly be appreciated.
**broken link removed**
I've been researching MPPT design and most of them seem to be for 12V panels and lower power panels. I particularly liked this design
https://www.electro-tech-online.com/custompdfs/2012/11/Solar20Charger.pdf
but it's only for 10-40W panels. It says modifications could be made for higher wattage panels, but I imagine this goes deeper than changing the resistor values for the voltage divider.
I also read that PIC controllers might be better suited for this purpose due to an internal ADC converter and an internal clock. Another design I saw on this forum was based on an Arduino board, which is fine for programming, but I'm not allowed to use the board in the final design. Here it is:
http://www.timnolan.com/index.php?page=arduino-ppt-solar-charger
Basically I'm wondering if the protoshield is really necessary? And where could I learn to display the output onto an LCD screen?
http://www.scribd.com/doc/51163743/Solar-Battery-Charger-With-MPPT-Using-Microcontroller
The above design seems geared towards a high voltage panel, which is useful, but doesn't provide the microcontroller code. Does anyone know a good resource/tutorial for learning this stuff?
Any help would greatly be appreciated.