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Battery AC Delco S2000 Power Supply Tweak #5

Open mbiundo opened 7 years ago

mbiundo commented 7 years ago

For AC Fed systems (Class 2 MeanWell Power Supply acting as Solar Panel)... We typically use a 100AHr AC Delco S2000 Sealed Battery. The power supply will need to be turned up from 15V output to it's max. About 17.45 Volts. If you do not, the MPPT controller will stay in the BULK State. For long a duration, this is probably not good for maximum life of the battery. If you increase the output of the power supply, the MPPT will account for this and act as designed, BULK->Absorption->Float... So please adjust the power supply to 17.45 V. See power supply spec sheet for correct potentiometer to turn. Changing Power Supply Output: test_voltage_graph Yields correct state machine output of mppt. test_chargestate_graph The charge current did not change. test_currents_graph

mbiundo commented 7 years ago

We have decided to modify the design. We will now use a 24V supply. By making this change we:

  1. Ensure the charging potential can transition through Bulk, Absorb and Float effectivly for any battery type.
  2. Remove the manufacturing step of having to open the power supply and raise the Output voltage. -Marc