公开(公告)号：US20190063404A1

公开(公告)日：2019-02-28

申请号：US15936488

申请日：2018-03-27

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Mitsuya BABA

IPC: F03D7/02 ,  F03D17/00 ,  F16K31/06

Abstract: A method of diagnosing a wind turbine power generating apparatus includes: an operation step of operating a pitch actuator corresponding to one of a plurality of wind turbine blades of the wind turbine power generating apparatus, without operating a pitch actuator corresponding to each of the wind turbine blades other than the one of the plurality of wind turbine blades; and a measurement step of measuring a response value indicating a response to operation of the pitch actuator corresponding to the one of the plurality of wind turbine blades. The operation step and the measurement step are performed repeatedly for each of the plurality of wind turbine blades, and the response value is obtained as data for health check of a blade pitch mechanism of the wind turbine power generating apparatus.

公开(公告)号：US20140152105A1

公开(公告)日：2014-06-05

申请号：US13902181

申请日：2013-05-24

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Akira YASUGI ,  Tsutomu KII ,  Mitsuya BABA ,  Yoshiaki HORI

IPC: H02J3/00

CPC classification number: H02J3/00 ,  F03D7/028 ,  F03D7/048 ,  F05B2270/309 ,  H02J3/386 ,  H02J3/48 ,  Y02E10/723 ,  Y02E10/763 ,  Y10T307/549

Abstract: An output control device for a wind farm which includes n number of wind turbines includes a WTG output obtaining unit for obtaining a current output Pi of each of the wind turbines; an extractable output calculation unit for calculating an extractable output Pmaxi for each of the wind turbines; a potential output calculation unit for calculating a potential output Ppoti of each of the wind turbines based on a difference between the extractable output Pmaxi and the current output Pi of each of the wind turbines; and a WTG output determination unit for determining an output command value of each of the wind turbines so that a total output PWF of the wind farm becomes closer to an output target value PWF*. The WTG output determination unit assigns an output increase amount to each of the wind turbines and to determine the output command value.

Abstract translation: 包括n个风力涡轮机的风力发电场的输出控制装置包括用于获得每个风力涡轮机的电流输出Pi的WTG输出获取单元; 可抽出输出计算单元，用于计算每个风力涡轮机的可提取输出Pmaxi; 潜在输出计算单元，用于基于每个风力涡轮机的可提取输出Pmaxi和当前输出Pi之间的差来计算每个风力涡轮机的潜在输出Ppoti; 以及WTG输出确定单元，用于确定每个风力涡轮机的输出命令值，使得风电场的总输出PWF变得更接近输出目标值PWF *。 WTG输出确定单元向每个风力涡轮机分配输出增加量并确定输出命令值。

公开(公告)号：US20200011294A1

公开(公告)日：2020-01-09

申请号：US16178010

申请日：2018-11-01

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Mitsuya BABA

IPC: F03D7/02 ,  F03D17/00

Abstract: Soundness and a sign of abnormality of a pitch mechanism of a wind turbine blade is quantitatively diagnosed. A method of diagnosing a wind turbine power generation facility includes the steps of: rotating and fixing a wind turbine rotor including at least one wind turbine blade; providing, in a state where the wind turbine rotor is fixed, a pitch control command value to a pitch mechanism that changes a pitch angle of the wind turbine blade, to increase or reduce the pitch angle such that the pitch angle reaches a pitch angle target value from a reference angle; acquiring an actual pitch angular velocity or an actual pitch angle of the wind turbine blade corresponding to the pitch control command value; and diagnosing soundness of the pitch mechanism based on correlation between the acquired actual pitch angular velocity or the acquired actual pitch angle, and the pitch control command value.

公开(公告)号：US20170248121A1

公开(公告)日：2017-08-31

申请号：US15250121

申请日：2016-08-29

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Mitsuya BABA

IPC: F03D7/02 ,  F03D80/80 ,  F03D9/25 ,  F03D7/04 ,  F03D9/00

CPC classification number: F03D7/0204 ,  F03D7/042 ,  F03D9/25 ,  F03D80/85 ,  F05B2270/32 ,  Y02E10/723 ,  Y02E10/725

Abstract: A wind turbine includes: a wind turbine rotor; a nacelle supporting the wind turbine rotor rotatably; a yaw rotation part configured to rotate the nacelle; and a yaw control part configured to operate the yaw rotation part in a yaw rewind mode of rotating the nacelle in such a direction that a yaw angle changes toward zero, if an absolute value of the yaw angle exceeds a threshold which is variable in accordance with a wind-velocity parameter representing a magnitude of a wind velocity. The threshold increases with an increase in the wind-velocity parameter.

公开(公告)号：US20170074243A1

公开(公告)日：2017-03-16

申请号：US15141015

申请日：2016-04-28

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Mitsuya BABA ,  Wakako ARIKI

IPC: F03D7/02 ,  F03D7/04 ,  F03D9/00

CPC classification number: F03D7/026 ,  F03D7/0224 ,  F03D7/0276 ,  F03D7/0284 ,  F03D7/042 ,  F03D9/255 ,  F05B2220/30 ,  F05B2260/74 ,  F05B2260/85 ,  F05B2270/101 ,  F05B2270/309 ,  F05B2270/32 ,  F05B2270/327 ,  F05B2270/328 ,  F05B2270/337 ,  Y02E10/723

Abstract: A wind turbine power generating apparatus includes a wind turbine rotor including at least one blade; a pitch drive part for changing a pitch angle of the at least one blade; a generator configured to be driven by rotational energy of the wind turbine rotor; a circuit breaker for switching a connection state of the generator with respect to a utility grid; and a controller for controlling the wind turbine power generating apparatus. The controller includes a pitch control part configured to control the pitch drive part in a constant rotation-speed control mode for maintaining a rotation speed of the wind turbine rotor at a target rotation speed, before connection of the generator; a connection-condition determination part configured to determine whether a connection determination condition is satisfied; and a connection-command generation part configured to provide the circuit breaker with a connection command to connect the generator to the utility grid.

Abstract translation: 风力涡轮机发电装置包括：风力涡轮机转子，其包括至少一个叶片; 用于改变所述至少一个叶片的俯仰角的桨距驱动部分; 发电机，其被构造成由所述风力涡轮机转子的旋转能量驱动; 用于切换发电机相对于公用电网的连接状态的断路器; 以及用于控制风力涡轮发电装置的控制器。 所述控制器包括：变桨控制部，被配置为在所述发电机连接之前，以恒定转速控制模式控制所述变桨驱动部，以将所述风力涡轮机转子的转速维持在目标转速; 连接条件确定部，被配置为确定连接确定条件是否被满足; 以及连接命令生成部，被配置为向断路器提供将发电机连接到公用电网的连接命令。

公开(公告)号：US20210332797A1

公开(公告)日：2021-10-28

申请号：US17241214

申请日：2021-04-27

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD. ,  MITSUBISHI POWER, LTD.

Inventor： Mitsuya BABA ,  Yasushi MORISHITA ,  Minoru SUGIURA ,  Kazuhiro TSUYUKI ,  Hideru SAKATA

IPC: F03D17/00 ,  F03D9/25

Abstract: A condition monitoring device for a wind turbine power generating apparatus provided with an auxiliary motor power supply system including a power-supply-side line connected to a power supply and a plurality of auxiliary-motor-side lines diverging from the power-supply-side line and connected to a plurality of auxiliary motors, respectively, comprises: a current measurement device for measuring a current flowing through the power-supply-side line; and a control device for controlling the plurality of auxiliary motors. The control device is configured to, when a generator of the wind turbine power generating apparatus is in a standby state where power generation is stopped at a low wind speed, execute a single sequential operation mode in which each of the plurality of auxiliary motors is singly and sequentially operated. The current measurement device is configured to measure a current flowing through the power-supply-side line during execution of the single sequential operation mode by the control device.

公开(公告)号：US20180230971A1

公开(公告)日：2018-08-16

申请号：US15671776

申请日：2017-08-08

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Yoshikatsu IKAWA ,  Katsuhiko TAKITA ,  Takao KUROIWA ,  Mitsuya BABA ,  Kazunari IDE ,  Takuya KOYANAGI

IPC: F03D17/00 ,  G01M5/00 ,  G01M11/08 ,  G01D5/353

Abstract: A method of detecting a damage of a wind turbine blade of a wind turbine rotor includes: a light input step of inputting light into a fiber-optic sensor mounted to the wind turbine blade; a light detection step of detecting reflection light from the grating portion; an obtaining step of obtaining a wavelength fluctuation index representing a fluctuation amount of a wavelength of the reflection light detected in the light detection step; and a detection step. The detection step includes detecting the presence or the absence of the damage of the wind turbine blade based on the wavelength fluctuation index taking account of a correlation between the wavelength fluctuation index of the wind turbine blade and a load index related to a load applied to the wind turbine blade, or a correlation between the wavelength fluctuation index and a temperature index related to a temperature of the wind turbine blade.

公开(公告)号：US20170218923A1

公开(公告)日：2017-08-03

申请号：US15393869

申请日：2016-12-29

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Mitsuya BABA ,  Yoshiyuki HAYASHI ,  Wakako ARIKI

IPC: F03D7/02

Abstract: A method of operating a wind turbine power generating apparatus includes a step of obtaining a wind direction of a wind; a step of obtaining at least one of a wind velocity of the wind or an index of turbulence degree of the wind velocity; and a step of selecting an operation mode of the wind turbine power generating apparatus from among a plurality of operation modes including a normal operation mode and at least one load-suppressing operation mode in which a load applied to a wind turbine blade is smaller than in the normal operation mode, on the basis of whether the at least one of the wind velocity or the index of turbulence degree is at least a threshold. The threshold of the at least one of the wind velocity or the index of turbulence degree is variable in accordance with the wind direction.

公开(公告)号：US20170074743A1

公开(公告)日：2017-03-16

申请号：US15140485

申请日：2016-04-28

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Mitsuya BABA ,  Wakako ARIKI

IPC: G01L25/00 ,  F03D17/00 ,  G01B11/16

CPC classification number: G01L25/00 ,  F03D17/00 ,  F05B2270/17 ,  F05B2270/331 ,  F05B2270/332 ,  G01B11/165 ,  G01M5/00

Abstract: A method of calibrating a load measurement apparatus for measuring a load on a wind turbine blade on the basis of strain data based on strain of a wind turbine blade includes: a strain-data acquisition step of, during a startup of a wind turbine, obtaining a plurality of the strain data for each of a plurality of conditions among which at least one of an azimuth angle or a pitch angle of the wind turbine blade is different from one another; a theoretical load-value acquisition step of obtaining a theoretical load value applied to the wind turbine blade due to own weight of the wind turbine blade, for each of the plurality of conditions, on the basis of the azimuth angle and the pitch angle of the wind turbine blade in each of the plurality of conditions; and a calibration-parameter calculation step of calculating a calibration parameter representing a relationship between the strain data obtained by the load measurement apparatus and the load on the wind turbine blade, on the basis of a correlation between each of the strain data and the theoretical load value.

Abstract translation: 基于风力涡轮机叶片的应变的应变数据，校准用于测量风力涡轮机叶片上的负载的负载测量装置的方法包括：应变数据获取步骤，在风力涡轮机启动期间获得 多个条件中的每一个的多个应变数据，其中风力涡轮机叶片的方位角或俯仰角中的至少一个彼此不同; 理论载荷值获取步骤，根据风力涡轮机叶片的各自的重量，基于所述风力涡轮机叶片的方位角和俯仰角，获得施加到风力涡轮机叶片的理论载荷值 在多个条件中的每一个中的风力涡轮机叶片; 以及校准参数计算步骤，基于每个应变数据和理论负载之间的相关性来计算表示由负载测量装置获得的应变数据与风力涡轮机叶片上的负载之间的关系的校准参数 值。

公开(公告)号：US20150240783A1

公开(公告)日：2015-08-27

申请号：US14293518

申请日：2014-06-02

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Tsutomu KII ,  Mitsuya BABA

IPC: F03D7/02

CPC classification number: F03D7/0204 ,  Y02E10/723

Abstract: Provided are a yaw control system and a yaw control method for a wind turbine generator, which are capable of obtaining an accurate value of the yaw direction even when the yaw direction sensor is abnormal. A yaw control system for a wind turbine generator which includes a nacelle configured to be capable of yaw rotation by a yaw drive mechanism comprises: a yaw direction sensor for detecting a yaw direction value of the nacelle at a current time; a yaw rotation amount calculation part for calculating an amount of yaw rotation of the nacelle in a predetermined period of time based on a yaw rotation speed and a yaw rotation time of the nacelle; a yaw direction estimation part configured to calculate an estimate value of a yaw direction of the nacelle at an end point of the predetermined period by an estimate value calculation logic, based on the amount of yaw rotation in the predetermined period calculated by the yaw rotation amount calculation part and the yaw direction value at a starting point of the predetermined period, and a yaw drive control part for controlling the yaw drive mechanism, wherein the yaw drive control part is configured to: when the yaw direction sensor is normal, determine a yaw rotation direction of the nacelle based on a detected result of the yaw direction value detected by the yaw direction sensor; and when the yaw direction sensor is abnormal, determine the yaw rotation direction of the nacelle based on the estimate value calculated by the yaw direction estimation part.

Abstract translation: 提供了一种用于风力涡轮发电机的偏航控制系统和偏航控制方法，其即使当偏航方向传感器异常时也能够获得偏航方向的精确值。 一种用于风力涡轮发电机的偏航控制系统，其包括被构造成能够由偏航驱动机构进行偏航旋转的机舱，包括：用于在当前时间检测所述机舱的偏航方向值的偏航方向传感器; 偏航旋转量计算部，其基于所述机舱的偏航旋转速度和偏航旋转时间，在预定时间段内计算所述机舱的偏航旋转量; 偏航方向估计部件，被配置为基于由所述偏转旋转量计算出的所述预定周期内的所述偏航旋转量，计算估计值计算逻辑在所述预定周期的终点处的所述机舱的偏航方向的估计值 计算部分和在预定周期的起点处的偏航方向值，以及用于控制偏航驱动机构的偏航驱动控制部分，其中偏航驱动控制部分被配置为：当偏航方向传感器正常时，确定偏航 基于由偏航方向传感器检测到的偏航方向值的检测结果，所述机舱的旋转方向; 并且当偏航方向传感器异常时，基于由偏航方向估计部计算出的估计值来确定机舱的偏航旋转方向。