Invention Grant
- Patent Title: Wind turbine generator, wind turbine generator system, and power generation control method of wind turbine generator
- Patent Title (中): 风力发电机组,风力发电机组,风力发电机组发电控制方法
-
Application No.: US12447505Application Date: 2008-05-14
-
Publication No.: US07952215B2Publication Date: 2011-05-31
- Inventor: Yoshiyuki Hayashi , Masaaki Shibata
- Applicant: Yoshiyuki Hayashi , Masaaki Shibata
- Applicant Address: JP
- Assignee: Mitsubishi Heavy Industries, Ltd.
- Current Assignee: Mitsubishi Heavy Industries, Ltd.
- Current Assignee Address: JP
- Agency: Kanesaka Berner and Partners LLP
- Priority: JP2007-139429 20070525
- International Application: PCT/JP2008/058858 WO 20080514
- International Announcement: WO2008/146604 WO 20081204
- Main IPC: F03D13/00
- IPC: F03D13/00

Abstract:
To provide a wind turbine generator, a wind turbine generator system, and a power-generation control method of a wind turbine generator that are capable of improving the power-generation capability and reducing the fatigue load on the windmill. A data accumulation unit 25 sequentially accumulates data sets of a generated output power P during operation of the wind turbine generator, an incoming wind speed Ws estimated on the basis of a wind speed measured at the anemometer, and a wind direction deviation, which is the difference between a wind direction θw measured at the anemoscope and the orientation of the nacelle; statistical analysis of the data accumulated is carried out by an analyzing unit 26; a distribution curve corresponding to the wind direction deviation of the generated output power at each incoming wind speed is determined; the wind direction deviation corresponding to the peak of the distribution curve is set as a correction value θd of the anemoscope; the correction value of the anemoscope for each incoming wind speed is stored in the wind-direction correction table 27; the wind direction Vw measured at the anemoscope is corrected with the correction value θd of the anemoscope for each incoming wind speed Ws; and power-generation control is carried out using the corrected wind direction as a control parameter.
Public/Granted literature
Information query