Wind turbine controller system is the primarily control program for preserve and adjust the typical operation for the wind generator. Both really should take consideration of the wind energy and generator characteristic and the users?¡¥ demand and capacity to pay, finial to obtain the effects of practical use, reliable and economical.
Typically, the procedure of wind turbine controller system might be divided as three states, standby state, working state, stopped state.
Standby state. When the wind speed is less than 3m/s, also the power of generator is lower than 10HZ; the wind turbine could not commence simply because this condition is out of the setting. At this condition, the wind turbine is rotating automatically, so whatever the wind orientation is, the wind turbine controller won't operate.
Working state. When the wind turbine controller is within the working condition, it'll real time control the generator information, like the output voltage, winding speed and temperature to assure stability and operation security under the rated output power. The control technique may be separated as 3 kinds. Automatically control, the wind turbine controller automatically orders blade to adjust the optimum position of face the oncoming wind to obtain a lot more energy. Yaw control, if the wind is too powerful, controller directs blade a yew angle to keep the blade secure. Brake control, if the wind speed reach the upper limit level, then the controller give a quit order directly to prevent the incidents.
Stopped state. If any one of below condition occurred, the wind turbine controller will quit the turbine. For example, detect the wind indicator broken and generator is under overvoltage. Yaw controller has problem. Electricity net power down. Occured alerting.
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