7:46 I'm pretty sure you get input voltage even when the generator is off because there must be some pretty beefy capacitors inside the charge controller. Also, we see the voltage drop slowly on the charge controller's display with would be consistent with capacitors discharging themselves.
hi compensate the three phases to bring the cosfy towards 0.9, then put an electrolytic capacitor on the diode bridge the working point of the mppt also changes based on the battery voltage if you have an oscilloscope look at the AC voltage if you see harmonics and that the AC current is a good sinusoidal try to put a resistive load of a few mA (I use a 10 watt filament light bulb) at the input of the mppt I don't know exactly why, but the mppt algorithm responds better to find the optimal point
Not sure, but I suspected it does not go max power in auto due to the battery is already full (14ish volt) and the charge controller was lowering its output. I would suggest to rerun in auto and do it with additional load (to vary battery voltage) and see how the MPPT charge controller react
That is a very good observation. Yes, that definitely will affect the power being delivered to the batteries. I have done what you suggested various times before and the results were always the same, the MPPT auto mode most of the time will be less than having it set to a fixed voltage value. You can see in this video that even at 14.4 volts using a fixed target voltage; I was able to get 200 watts out of it.
I don't understand why the MidNite takes so much time to respond in manual mode because it changes a lot more quickly in auto mode and it does so while running! I would try to update the firmware if that's possible, If that doesn't fix it, I would try contacting their customer support.
Great work as usual 🥳
Thank you!
7:46 I'm pretty sure you get input voltage even when the generator is off because there must be some pretty beefy capacitors inside the charge controller. Also, we see the voltage drop slowly on the charge controller's display with would be consistent with capacitors discharging themselves.
The voltage also climbs above the battery voltage on the charger side according to the MPPT setting. So it's more than the charged capacitors.
hi compensate the three phases to bring the cosfy towards 0.9, then put an electrolytic capacitor on the diode bridge
the working point of the mppt also changes based on the battery voltage
if you have an oscilloscope look at the AC voltage if you see harmonics and that the AC current is a good sinusoidal
try to put a resistive load of a few mA (I use a 10 watt filament light bulb) at the input of the mppt
I don't know exactly why, but the mppt algorithm responds better to find the optimal point
Thanks for the tips, I will try these out.
7:55 Hun!? It went back up!? Is the charge controller trying to regulate even when there is no input?
👍
Not sure, but I suspected it does not go max power in auto due to the battery is already full (14ish volt) and the charge controller was lowering its output. I would suggest to rerun in auto and do it with additional load (to vary battery voltage) and see how the MPPT charge controller react
That is a very good observation. Yes, that definitely will affect the power being delivered to the batteries. I have done what you suggested various times before and the results were always the same, the MPPT auto mode most of the time will be less than having it set to a fixed voltage value. You can see in this video that even at 14.4 volts using a fixed target voltage; I was able to get 200 watts out of it.
i wonder if your MPPT charge controller might be faulty. I'd definitely try the firmware update and customer support if it doesn't work.
Thanks for the feedback, I will look into that.
I don't understand why the MidNite takes so much time to respond in manual mode because it changes a lot more quickly in auto mode and it does so while running! I would try to update the firmware if that's possible, If that doesn't fix it, I would try contacting their customer support.
That's a good suggestion. I'll worked on getting the firmware updated, thanks.