Why does my wind turbine generator pulse instead of spinning smoothly?
I have (2) wind generators on a caye and they spin and then stall. It seems to hit velocity and then pauses/stalls every 15 seconds. One it's annoying and two it probably is not producing the max output DC current, too.
Best answer:
Answer by RidingTheLight
I would check the specs on those generators. You might have hit a cut-off point for the angular velocity of the generators. Check what type of angular velocities you are obtaining through your gearing and see how it matches up with your generator's specs. A generator shouldn't stall if operated inside its specifications. If you have 2 of them doing the same thing, then theres obviously something wrong with your choice in generator (this is all assuming your wind energy system is operating within a small range of RPMs).
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Perhaps the two wind turbines are too close to each other and some sort of resonance is occurring? We don’t understand caye/ can you use a different word and more details? You can check for resonance by preventing one propeller from turning, then the other, but not both at the same time. If this stops the pulsing; resonance is likely.
Another possibility is the battery is supplying electricity to the generator causing it to run as a motor, part of the time.
The battery may be drawing excessive (or not enough) current from the generator so that your charge controllers are producing the 15 second cycle. Do you have separate batteries (and separate charge controllers) for each wind generator? Try supplying the poorest battery with several amps from a battery charger connected to your electric utility. Neil
Does the pulsing stop when you draw several amps from a battery?