I was a developer of PV module. so, I know the electrical characteristic of PV cells and MPPT concepts well.
I just wonder, Can I use the buck converter for MPPT? I saw that buck converter can be used for MPPT through the internet.
But, I thought, Buck converter makes the PV current choped. (Not kind of DC current with ripple)
And PV module is kind of current source with shunt & series resistor and diode. so, there is maximum current(Isc) not like power supply. it's not power conversion, just on/off concept. for MPPT, PV current should be like DC current with ripple.
That's why buck is not good for MPPT.
Buck is just for kind of PWM charger. (PV is not like normal power supply)
I think kind of boost converter concepts should be used. because, PV current is continuous, not choped.
How do you think about that?