Hi Michael,
I suggest doing a little research on the "White Zombie" an electric drag racer that has been running joined DC motors for quite some time. he has also used twin controllers to get past the 1000A controller limitations that existed for some time.
For boating purposes, I don't think that one needs to use two motors until you get much farther up the power scale. If you need them, 20kW motors aren't that difficult to source.
Fair winds,
Eric
Marina del Rey, CA
--- In electricboats@yahoogroups.com, "Michael Mccomb" <mccomb.michael@...> wrote:
>
> if one were to hook two 10kw motors utilizing separate controllers and battery banks together so that the two motors were driving a single load wouldn't any imbalance in contribution of effort by the two systems tend to result in a transfer of power from the over contributing system to the lessor contributing system? secondarily if one could have the controllers differentially contribute amperage based on which battery bank was least charged couldn't the resulting system serve to balance the two battery banks? i would also think that the balancing could be attained in either powering or regeneration modes
>
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