mppt vs pwm
Hi, A nice little video comparing mppt vs pwm with the batteries in bulk mode. mppt vs pwm
Forum Discussion
BFL13 wrote:
So when in "PWM mode" is it just that the MPPT gizmo circuit thingy is still working, but now instead of trying to keep at a moving target MPP, it now just fiddles with panel voltage to get "enough" power, which can also be a moving target if loads are applied on and off?
That's my understanding.
BFL13 wrote:
Since MPP is at the knee of the IV curve with Vmp being lower than Voc, it seems the panel voltage would go down the steep slope to the right to get the reduced power which means panel voltage is higher than Vmp during Absorption as stated by 12thgenusa above?
Rather than looking at the panel Iv versus Vp curve, look at the panel power versus Vp curve (fig 6.1, righ panel in the Rogue 3048 manual). Roque *could* run the Vp higher than Vmp to reduce power, but if it runs the Vp lower than Vmp, it has a more linear and less steep slope to work with. That's what I would do, but I don't know which way Rogue goes.
