| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent such a trouble that a wind power generation device cannot supply power to a power system due to an excessive increase/decrease in power generation output when a fluctuation in the frequency of the power system is recovered. <P>SOLUTION: A wind turbine control device supplies power to the power system by a multi-blade rotor receiving the wind and rotating and by a power generator generating power by the rotation of the rotor, and controls the wind power generation device capable of varying the amount of power to be supplied to the power system according to the fluctuation in the frequency of the power system. A subtractor 62 provided in the wind turbine control device calculates a frequency variation amount, which is the difference between a frequency measurement value of the power generation output of the wind power generation device and a frequency setting value of the power generation output of the wind power generation device. On the basis of the number of rotations of the power generator, a limiting unit 66 limits the power variation amount according to the frequency variation amount calculated by the subtractor 62. <P>COPYRIGHT: (C)2012,JPO&INPIT |
