How to control high-amp turbine?

[amiklic1]

I was just wandering, if someone have a really big turbine ( something like 17' axial from Otherpower. Uh! That's really the nice one), how to control the battery charging?

I thought about using a few controllers wired in parallel, so to divide the current between them. Let's say three controllers capable of 30 A each, that would be a bit more that 16 Amps flowing thru each one.

Also, how to rectify such a monster? If we use bridge rectifiers, 35 amps is not enough. maybe to use more rectifiers, like in the controller option, so to divide the current.

So, if we use three rectifiers capable of more than 45V, we again have just a bit more that 16A thru each one.

[Flux]

As far as amps go, that is no more demanding than a modest size 12v turbine, you can use more than one controller as you suggest or use one to switch some relays.

The dump load resistors will be more of a challenge to dump nearly 4kW.

Again you can parallel 35A bridges but there is some de-rating  so use plenty and big heat sinks. There comes a time at higher currents when it is cheaper to use individual diodes and make your own bridge. The press fit diodes used in the motor industry and cheap welders may work out cheaper if you can get them.

Flux