Bucking and MPPT?
Question here is whether I saw where the effect of MPPT was seen or not---was the amount of change about right? Situation was controller (Eco-Worthy 20amper) was showing 14.4v (as set by me for Flo...
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A DC meter measures the average value of voltage or current, which is fine for a constant value, or values that contain small changes in magnitude that vary with time.
A True RMS meter measures the current or voltage magnitude value that is needed to calculate power when the DC voltage varies a large amount in respect to time.
I don't really spend much time looking at my system parameters since its capacity is a little more than I actually use, so its pretty much topped off daily.
The panel's current can be considered constant for a given irradiance, so to change panel power, the panel voltage must be manipulated.
Power Out divided by Power In equals Efficiency so use your Power Out data and divide it by approximately .85 and this will approximate the power in - losses of controller and cabling.
A True RMS meter measures the current or voltage magnitude value that is needed to calculate power when the DC voltage varies a large amount in respect to time.
I don't really spend much time looking at my system parameters since its capacity is a little more than I actually use, so its pretty much topped off daily.
The panel's current can be considered constant for a given irradiance, so to change panel power, the panel voltage must be manipulated.
Power Out divided by Power In equals Efficiency so use your Power Out data and divide it by approximately .85 and this will approximate the power in - losses of controller and cabling.
