Title:
WIND POWER GENERATOR
Document Type and Number:
Japanese Patent JP2020153347
Kind Code:
A
Abstract:
To achieve a high speed, accurate, and reliable wind state prediction function by a limited data processing resource of a windmill by using a Lidar for the purpose of improving power generation efficiency and reducing fatigue loading of a wind power generator.SOLUTION: A wind power generator having a tower, a nacelle provided to the tower, and a blade connected to the nacelle is equipped with a Doppler Lidar for detecting a wind speed and a control device in the nacelle. The Doppler Lidar has a function to emit laser beams in a plurality of directions, and measure wind speeds of a plurality of measurement distances along each laser beam in a predetermined measurement time. The control device has a wind speed prediction function to input a dataset that selects a part out of wind speed data measured by the Doppler Lidar, and predict a wind speed at a position of the wind power generator.SELECTED DRAWING: Figure 1
Inventors:
YAZAWA YOSHIAKI
SUGINO JUNICHI
KAKUYA HIROMU
SUGINO JUNICHI
KAKUYA HIROMU
Application Number:
JP2019054951A
Publication Date:
September 24, 2020
Filing Date:
March 22, 2019
Export Citation:
Assignee:
HITACHI LTD
International Classes:
F03D7/04; F03D17/00; G01S17/42; G01S17/58; G01S17/95
Attorney, Agent or Firm:
Aoritsu patent business corporation