The function of grid-tie controller is transfer the three phases AC to DC generated from wind turbine, then provides electricity for DC equipments.
This type of controller is easy to operate, it can dump load automatically when the wind speed is out of control and over voltage. If the DC Voltage is still higher than required voltage after dump load 30%, controller will stop wind turbine automatically. The wind turbine will begin to work after brake time of 12-20minutes. Besides, this type of controller also has the advantage of deleting the delay brake time if you want to make the wind turbine work immediately after brake, manual brake, the indication of wind power, unload, over voltage stop, etc. And this system is very safe and stable, and has high efficiency and long lifetime.