Title:
A wind power generator and a braid pitch angle adjustment method for the same
Document Type and Number:
Japanese Patent JP6230967
Kind Code:
B2
Abstract:
A windturbine generator of the present invention includes: a rotor (1) composed of a hub (3) and a blade; a nacelle (4) pivotably supporting the rotor via a rotary shaft connected to the hub (3) and storing therein a power generator connected to the rotary shaft; a tower (5) supporting the nacelle; a pitch actuator changing and thereby adjusting a pitch angle of the blade; and a pitch controller outputting a command value to the pitch actuator, wherein, at the pitch controller, a detected command for stopping the rotor (1) is outputted to the pitch actuator, and the pitch controller mechanically fixes the rotor after confirmation that shifting to a manual state has occurred and, based on the command for stopping the rotor from the pitch controller, increases the pitch angle of the blade to make the angle larger than a pitch angle of the blade in a feather state during deceleration.
Inventors:
Yasuaki Nakanishi
Tokunaga Ikuo
Tokunaga Ikuo
Application Number:
JP2014137395A
Publication Date:
November 15, 2017
Filing Date:
July 03, 2014
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
F03D7/04; F03D80/50
Domestic Patent References:
| JP2009162057A |
Foreign References:
| WO2013042252A1 |
Attorney, Agent or Firm:
Polaire Patent Business Corporation