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1. IN3240/DELNP/2013 - METHOD AND SYSTEM FOR OPERATING WIND TURBINE DURING FAULT

Office India
Application Number 3240/DELNP/2013
Application Date 11.04.2013
Publication Number 3240/DELNP/2013
Publication Date 14.11.2014
Publication Kind A
IPC
F03D 7/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
DWIND MOTORS
7Controlling wind motors
02the wind motors having rotation axis substantially parallel to the air flow entering the rotor
04Automatic control; Regulation
Applicants GENERAL ELECTRIC COMPANY
Inventors GAO Meng
MA Cheng
Title
(EN) METHOD AND SYSTEM FOR OPERATING WIND TURBINE DURING FAULT
Abstract
(EN)
A method and a system for operating a wind turbine (10) during a fault. The system includes a pitch motor for rotating each rotor blade (18) second pitch sensors (72) for determining when the rotor blade (18) is rotated to a set point and a backup pitch controller (80). After a fault is detected the method determines whether the wind speed in the vicinity of the wind turbine (10) is less than or greater than or equal to a maximum rated velocity of the wind turbine (10). The backup pitch controller (80) then rotates the rotor blades (18) to a specific set point based on the determination.