So here's the issue... My new 2000w wind turbine is designed to produce 3-phase 96VAC, but my grid-tied controller is only designed for 3-phase 40-90VAC. I realize that voltage and rpm's are proportional, but due to the high winds we regularly experience, I'd expect the 90+ condition to happen too often. I had considered a voltage-controlled relay to switch from feeding the controller to shunting to a braking system (to keep the turbine from flying apart at excessive rpm's).
How can I build a 3-phase AC voltage regulator to prevent the voltage from exceeding 90VAC? If it was single phase, I'd just use a handy motor speed controller to trim the voltage and put a BIG fan on it. But, I don't even know where to start when it comes to 3-phase AC voltage regulation.
I have also considered a 3-phase step-down transformer (96VAC to 48VAC), but good luck finding such a unicorn.
Any advice would be greatly appreciated!
How can I build a 3-phase AC voltage regulator to prevent the voltage from exceeding 90VAC? If it was single phase, I'd just use a handy motor speed controller to trim the voltage and put a BIG fan on it. But, I don't even know where to start when it comes to 3-phase AC voltage regulation.
I have also considered a 3-phase step-down transformer (96VAC to 48VAC), but good luck finding such a unicorn.
Any advice would be greatly appreciated!