| 摘要 |
<P>PROBLEM TO BE SOLVED: To conform a larger quantity of generated power than demanded power to the demanded power by a variable pitch mechanism in a wind power generating device. <P>SOLUTION: The blade 102 of the wind power generating device 100 is mounted to a main shaft 110 through a rotor head 105, and a pitch angle is changed by the variable pitch mechanism 106 of the rotor head. The main shaft 110 is mounted to the generator 115 through a gearbox 114. The control unit 203 of a power transmission control device 200 determines whether consumption power flowing into a system transmission line 203 is smaller than the generated power or not, and if it is affirmatively determined, an oil pressure control box 116 provided in the nacelle 120 of the wind power generating device issues a command to send oil pressure so that the variable pitch mechanism works so as to lower efficiency of the pitch angle, and the pitch angle is changed little by little until the generated power conforms to the consumption power. <P>COPYRIGHT: (C)2003,JPO |
