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发明公开
CN102374124A 用于风力涡轮机的运行的设备和方法 有权

用于风力涡轮机的运行的设备和方法
摘要：
本发明涉及用于风力涡轮机的运行的设备和方法。提供了一种用于运行风力涡轮机(10)的方法。风力涡轮机(10)包括转子(18)，转子包括至少一个转子叶片(22)和联接到该至少一个转子叶片(22)上的变桨驱动系统(68)。变桨驱动系统(68)适于使转子叶片(22)变桨。该方法包括：确定指示风力涡轮机(10)的超速状态的第一变量的实际值；确定风力涡轮机(10)的与第一变量的相对于时间的变化率相关的第二变量的实际值；以及至少根据第一变量和第二变量的所确定的实际值来估计风力涡轮机(10)的超速状态的出现。变桨驱动系统(68)基于估计的结果来使该至少一个转子叶片(22)变桨，以便以空气动力学的方式制动转子(18)。
摘要（英）：

The inention relates to an apparatus and a method for operation of a wind turbine. A method for operating a wind turbine (10) is provided. The wind turbine (10) includes a rotor (18) including at least one rotor blade (22) and a pitch drive system (68) coupled to the at least one rotor blade (22). The pitch drive system (68) is adapted for pitching the rotor blade (22). The method includes: determining an actual value of a first variable indicative of an overspeed state of the wind turbine (10); determining an actual value of a second variable of the wind turbine (10) correlated to the rate of change over time of the first variable; and, estimating an occurrence of an overspeed state of the wind turbine (10) from at least the determined actual values of the first and second variables. The pitch drive system (68) pitches the rotor blade (22) for aerodynamically braking the rotor (18) based on the result of the estimation.

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