| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pitch angle control device facilitating equalization of generated electric power especially capable of equalizing generated electric power against parameter change and wind share in a wind power generator. <P>SOLUTION: A compensation controller 10 and a parameter identifier 12 accompany a feed back type pitch angle control system. Control compensation command value u2 is calculated by inputting deviation "e" between generator output and rated output and applying a control formula including a parameter to the output deviation by the compensation controller 10. The output deviation "e" and the control compensation command u2 are input and the parameter included in the control formula of the compensation controller 10 is identified to make evaluation function including output deviation and control compensation command value as variables close to an extremal value by the parameter identifier 12. Output control compensation command value u2 is added to pitch angle command value u1 of the feed back type control system to perform pitch angle control of a windmill. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
