Grid Wind turbine Controller

This system has perfect protection functions:

1. When the grid-connected inverter breaks down or the electricity network is lost, the braking protection of the wind turbine can start automatically.

2. In a strong wind, the controller can automatically stabilize the voltage through PWM toward the wind turbine and the power is continuously supplied to the grid-connected inverter.

3. After the PWM is 100% unloaded, if the DC voltage value is still higher than the required value, the controller can automatically brake the wind turbine and the power supply to the grid-connected inverter is cut down.

4. After the wind turbine is braked, the controller can automatically operate the wind turbine to be restored to the normal operation after 12-20 minutes time delay. Press the brake elimination button on the front panel, the wind turbine can be restored to the normal operation, too.

5. The user can use the manual brake switch on the controller according to different conditions. When using this switch, mandatory brake of the wind turbine can be realized.

6. The controller has emergency stop switch. In case of emergency, press the emergency stop button on the front panel, all the power supply of the controller can be cut down and the wind turbine can be braked immediately.  

7. Comprehensive indicators. There are wind indicator, unload indicator, stopping delay indicator, low voltage indicator, electricity network indicator and output DC voltage indicator on the front panel.