Patent ID: 8249754
Filing Date: 2012-08-21
Classification: F03D,F05B,Y02E

Abstract:
1. A wind turbine generator, comprising: a load measurement unit configured to measure a load on each wind turbine blade; a moment calculating unit configured to calculate a moment around a wind-turbine tower axis by carrying out coordinate transformation of the load on each wind turbine blade measured by the load measurement unit; a component-command-value setting unit configured to calculate an angle command value around the wind-turbine tower axis by adding a yaw-control command value specified by a yaw-control-command-value setting unit to a reference command value canceling out the moment calculated by the moment calculating unit; and a pitch-angle-command setting unit configured to set a pitch-angle command value for each wind turbine blade on the basis of the angle command value around the wind-turbine tower axis; wherein the yaw-control command value is provided by the yaw control command value setting unit responsive to an average wind direction deviation being larger than a predetermined threshold; and the yaw-control command value is specified by the average wind direction deviation and a wind speed referencing a value stored in a yaw-control-command-value table.