Ben, it may be too late if the fuses blow. I would start off by sticking a resistor in series with that input to limit the current. And please do be careful, as those voltages are lethal!bennelson wrote:..I'll just need to add fusing on the PV in. If something bad happens, it's the fuses that will blow.
glad to hear that you're careful and aware of the situation. Am not entirely sure how the MPP circuitry works, but it may pull max current while watching for Vpv to drop to determine that max-point. If only we put in a max current limiter in series.bennelson wrote:Remember though, CURRENT is about how much is DRAWN through a circuit.
There is a maximum that solar can provide. There is a much HIGHER current that a battery can supply. However, it depends on how much the inverter draws.
For an off-grid inverter, only as much current is drawn as is needed for the AC output the inverter creates, plus the inverter overhead and inefficiencies.
It shouldn't matter whether the current is drawn in through PV input or the BATTERY input in that they are both about the same range. (iMiEV battery is 360VDC fully charged)
The MeanWell power supply in series remind me of the grid-charger I built for the Insight. Joes probably has one too. It was a decent way to "current limit". Is it conceivable to put one in series with the iMiev 360vdc as a current limiter ?bennelson wrote:I'm using Enphase M15 micro-inverters with 250 watt PV panels. 26 of them total.
Adding additional cells in series to an iMiEV pack probably wouldn't be very useful. Even if it was high enough voltage for the battery input on the H6 inverter, the H6 still requires communications to the battery pack. The inverter was really designed for just ONE particular battery pack - a high-voltage DC Tesla Powerwall unit.