公开(公告)号：US09587627B2

公开(公告)日：2017-03-07

申请号：US13932692

申请日：2013-07-01

Applicant: General Electric Company

Inventor： Xu Fu ,  Na Ni ,  Qiang Li ,  Zhilin Wu ,  Lihan He ,  Hai Qiu ,  Yong Yang ,  Gerald Addison Curtin, Jr. ,  Myungkeun Yoon

IPC: F03D7/02

CPC classification number: F03D7/0224 ,  F03D17/00 ,  F03D80/00 ,  F05B2260/84 ,  F05B2260/96 ,  F05B2270/1095 ,  F05B2270/328 ,  F05B2270/331 ,  F05B2270/332 ,  F05B2270/807 ,  Y02E10/722 ,  Y02E10/723

Abstract: A wind turbine includes multiple blades, multiple Micro Inertial Measurement Units (MIMUs) for sensing parameter signals of the blades, and a control system. The control system includes a blade bending moment calculation unit, a blade bending moment error signal calculation unit, and a pitch angle compensation command calculation unit. The blade bending moment calculation unit is used for calculating blade bending moment values of the blades based at least on the sensed parameters. The blade bending moment error signal calculation unit is used for calculating blade bending moment error signals of the blades based on the calculated blade bending moment values of the blades and multiple blade bending moment commands. The pitch angle compensation command calculation unit is used for calculating pitch angle compensation commands of the blades based on the calculated blade bending moment error signals to adjust pitch angles of the blades respectively.

Abstract translation: 风力涡轮机包括多个叶片，用于感测叶片的参数信号的多个微惯性测量单元（MIMU）和控制系统。 控制系统包括叶片弯矩计算单元，叶片弯矩误差信号计算单元和俯仰角补偿指令计算单元。 叶片弯矩计算单元用于至少基于所感测的参数来计算叶片的叶片弯矩值。 刀片弯矩误差信号计算单元用于根据叶片的计算叶片弯矩值和多叶片弯矩命令来计算叶片的叶片弯矩误差信号。 桨距角补偿指令计算单元用于基于所计算的叶片弯矩误差信号来计算叶片的俯仰角补偿命令，以分别调节叶片的桨距角。

公开(公告)号：US10018177B2

公开(公告)日：2018-07-10

申请号：US14477950

申请日：2014-09-05

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Xu Fu ,  Lihan He ,  Hai Qiu ,  Gerald Addison Curtin, Jr. ,  Myungkeun Yoon

IPC: F03D7/02 ,  F03D7/04 ,  F03D17/00

CPC classification number: F03D7/0224 ,  F03D7/024 ,  F03D7/045 ,  F03D17/00 ,  F05B2270/32 ,  F05B2270/807 ,  Y02E10/721 ,  Y02E10/723

Abstract: A wind turbine includes a rotor comprising multiple blades mounted on a hub, MIMUs mounted on each blade for sensing parameter signals thereof, and a control system. The control system includes a wind speed calculation unit, a wind shear calculation unit, a pitch angle compensation command calculation unit, and a pitch control unit. The wind speed calculation unit is used for calculating wind speeds at the blades based at least on the sensed parameter signals. The wind shear calculation unit is used for calculating a characteristic shear exponent based at least on the calculated wind speeds. The pitch angle compensation command calculation unit is used for calculating pitch angle compensation commands of the blades based at least on the calculated characteristic shear exponent. The pitch control unit is used for adjusting the pitch angles of the blades based on the calculated pitch angle compensation commands.