Environmental Engineering Reference
In-Depth Information
As illustrated in Figure 14-1, a wind turbine control system consists of sensors, actua-
tors and a system that ties these elements together. A hardware or software system processes
input signals from the sensors and generates output signals for actuators. The main goal of
the controller is to modify the operating states of the turbine to maintain safe turbine op-
eration, maximize power, mitigate damaging fatigue loads, and detect fault conditions. A
supervisory control system starts and stops the machine, yaws the turbine when there is a
significant yaw misalignment, detects fault conditions, and performs emergency shut-downs.
Other parts of the controller are intended to maximize power and reduce loads during normal
turbine operation.
Figure 14-1. Wind turbine control actuators and typical sensors.
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