Solar install on a Trailer, newbie questions
Hi, I just got a solar panel and controller for my TT. I want to install the panel on the roof laying flat but am unsure of how to attach it. Q#1 Should I run some screws or bolts into the roof an...
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panel current is either on or off, the on time tapers but not the current. Get a scope to get the real values when on and not the average that meters report since it happens so fast.
That is how power is regulated either full power or no power.
vd is based on current when ON
acceptance is adjusted by changing the ON time. When there is no need for any current the controller is not connected to the panel or OFF, when there is a need the full power the panel makes is applied. This is all done at a very high Hz.
The charts are standard IV - power curves. Would ya like to see more with temp and/or irradiace effects? How current goes up to the left of Vmp with heat and how Vmp moves to the left (lower) with heat.
they show if vd is high the panel will operate at higher than batt voltage and the current drops. I don't care for my panel to operate to the right of the Vmp which is lowered by heat. NOCT conditions and Vmp of a 12v panel is down to 16v even less when hotter and the IV curve shows that past Vmp the current drops.
That is how power is regulated either full power or no power.
vd is based on current when ON
acceptance is adjusted by changing the ON time. When there is no need for any current the controller is not connected to the panel or OFF, when there is a need the full power the panel makes is applied. This is all done at a very high Hz.
mike-s wrote:
And, why you're injecting charts applicable to an MPPT controller into a PWM discussion is a mystery.
The charts are standard IV - power curves. Would ya like to see more with temp and/or irradiace effects? How current goes up to the left of Vmp with heat and how Vmp moves to the left (lower) with heat.
they show if vd is high the panel will operate at higher than batt voltage and the current drops. I don't care for my panel to operate to the right of the Vmp which is lowered by heat. NOCT conditions and Vmp of a 12v panel is down to 16v even less when hotter and the IV curve shows that past Vmp the current drops.
