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    • 1. 发明申请
    • PARTIAL-LOAD DE-RATING FOR WIND TURBINE CONTROL
    • 用于风力涡轮机控制的部分负载评估
    • US20150267686A1
    • 2015-09-24
    • US14421312
    • 2012-08-14
    • Martin Ansbjerg KjærEik Herbsleb
    • Martin Ansbjerg KjærEik Herbsleb
    • F03D7/02F03D9/00
    • F03D7/0284F03D7/0224F03D7/0272F03D7/028F03D9/255F03D9/257F05B2270/1033F05B2270/337Y02E10/723Y02E10/725
    • Methods, controllers and computer program products for controlling a wind turbine. Under de-rated operating conditions in which the power requested from a wind turbine is less than the available power, a controller adjusts blade pitch of the wind turbine to reduce the rotor power coefficient. The captured wind power is thereby reduced to be approximately equal to the requested electrical power, which is less than either the available power or the rated power of the wind turbine generator. This reduction in captured power provides the controller with an additional degree of freedom that allows the controller to increase the electrical power output of the wind turbine in response to wind fluctuations without damaging the wind turbine. By allowing increases in power under de-rated conditions, the controller may reduce the amount of pitching necessary to prevent the turbine from exceeding its rated power output level.
    • 用于控制风力发电机的方法,控制器和计算机程序产品。 在风力涡轮机要求的功率小于可用功率的减压运行条件下,控制器调整风力涡轮机的叶片桨距以减小转子功率系数。 捕获的风力由此减小到大约等于所要求的电功率,其小于风力涡轮发电机的可用功率或额定功率。 捕获功率的这种降低为控制器提供了额外的自由度,其允许控制器响应于风力波动而增加风力涡轮机的电功率输出而不损害风力涡轮机。 通过允许在降额条件下增加功率,控制器可以减少必要的俯仰量,以防止涡轮机超出其额定功率输出水平。