公开(公告)号：US20110193343A1

公开(公告)日：2011-08-11

申请号：US12768329

申请日：2010-04-27

申请人： Takumi NAKASHIMA ,  Mitsuya BABA ,  Yoshiyuki HAYASHI ,  Kazunari IDE

发明人： Takumi NAKASHIMA ,  Mitsuya BABA ,  Yoshiyuki HAYASHI ,  Kazunari IDE

IPC分类号： H02P9/04 ,  F03D7/02 ,  F01D7/00

CPC分类号： F03D7/043 ,  F03D7/0224 ,  F03D7/024 ,  F03D7/0264 ,  Y02E10/723

摘要： The present invention provides a wind turbine generator and a blade pitch angle control method thereof in which an aerodynamic imbalance of a wind turbine rotor at the time of shutdown is further reduced, the maximum load of a wind turbine is further reduced, and the wind turbine generator can be reduced in weight and cost. The wind turbine generator includes a collective pitch angle controller 11 that produces a collective pitch angle demand that is common to blade pitch angles of wind turbine blades, an individual pitch angle producing unit 13 that produces an individual pitch angle demand inherent in each wind turbine blade, multipliers 21 to 23 that multiply the individual pitch angle demand by the individual pitch angle gain; an individual pitch angle gain producing unit 14, and adder 24 to 26 that add collective pitch angle demands to the output of the multipliers 21 to 23 and supply the same to pitch actuators 31 to 33 inherent in the wind turbine blades. When shutdown is performed, the individual pitch angle gain is adjusted such that an individual pitch angle gain is reduced gradually and reaches to zero by the individual pitch angle gain producing unit 14 after first set time.

摘要翻译： 本发明提供了一种风力发电机及其桨叶角度控制方法，其中进一步降低了风力涡轮机转子在停机时的空气动力学不平衡，进一步降低了风力涡轮机的最大负荷，风力涡轮机 发电机可以减轻重量和成本。 风力涡轮发电机包括一个共同桨距角控制器11，其产生与风力涡轮机叶片的桨叶桨距角共同的总桨距角度需求，单个俯仰角产生单元13，其产生每个风力涡轮机叶片中固有的各个桨距角度需求 ，乘法器21至23，其将各个俯仰角需求乘以各个桨距角增益; 单个桨距角增益产生单元14和加法器24至26，其将乘法器21至23的输出增加集体俯仰角要求，并将其提供给风力涡轮机叶片固有的俯仰致动器31至33。 当执行关闭时，调整各个俯仰角增益，使得各个俯仰角增益在第一设定时间之后由各个俯仰角增益产生单元14逐渐减小并达到零。

公开(公告)号：US20120051888A1

公开(公告)日：2012-03-01

申请号：US12962842

申请日：2010-12-08

申请人： Taketo MIZOUE ,  Mitsuya BABA

发明人： Taketo MIZOUE ,  Mitsuya BABA

IPC分类号： F04D29/00

CPC分类号： F03D11/0091 ,  F03D17/00 ,  F05B2270/807 ,  Y02E10/722 ,  Y02E10/723

摘要： An object of the present invention is to provide an abnormal vibration detection unit which is capable of stopping a wind turbine generator in a case of detecting excessive vibration that poses danger and is designed suitably for the failure detection. The abnormal vibration detection unit comprises first and second acceleration detectors, a calculation device which receives a first analog output signal that is outputted from the first acceleration detector, a filtering relay which receives a second analog output signal that is outputted from the second acceleration detector, and a safety system which performs an emergency stop of the wind turbine generator in accordance with a state of an output terminal of the filtering relay. The filtering relay comprises a filter circuit part that performs filtering process to extract a predetermined frequency component from the second analog output signal. The calculation device generates a predicted value of the output signal of the filter circuit part by performing digital calculation of the first analog output signals, and detects a failure of the first acceleration detector, the second acceleration detector, or the filter circuit part by comparing the predicted value of the output signal of the filter circuit part with a measured value of the output signal of the filter circuit part received from the filtering relay.

摘要翻译： 本发明的目的是提供一种异常振动检测单元，其能够在检测到具有危险的过度振动的情况下停止风力涡轮发电机，并且被适当地设计用于故障检测。 异常振动检测单元包括第一和第二加速度检测器，接收从第一加速度检测器输出的第一模拟输出信号的计算装置，接收从第二加速度检测器输出的第二模拟输出信号的滤波继电器， 以及根据过滤继电器的输出端子的状态进行风力发电机的紧急停止的安全系统。 滤波继电器包括滤波电路部分，其执行滤波处理以从第二模拟输出信号提取预定频率分量。 计算装置通过对第一模拟输出信号进行数字计算来生成滤波器电路部分的输出信号的预测值，并且通过比较第一加速度检测器，第二加速度检测器或滤波器电路部分的故障， 滤波器电路部分的输出信号的预测值与从滤波继电器接收的滤波电路部分的输出信号的测量值相对应。

公开(公告)号：US20120061971A1

公开(公告)日：2012-03-15

申请号：US13104228

申请日：2011-05-10

申请人： Mitsuya BABA ,  Yasutaka NISHIMOTO ,  Kei KUMAMOTO ,  Soshi MARUTA

发明人： Mitsuya BABA ,  Yasutaka NISHIMOTO ,  Kei KUMAMOTO ,  Soshi MARUTA

IPC分类号： F03D9/00

CPC分类号： H04B3/54 ,  H04B2203/5475 ,  Y02E10/726

摘要： An object of the present invention is to provide a wind turbine generator in which a communication channel can be added in communication between a hub and a nacelle, without making a modification to the design of a slip ring. The present invention provides a wind turbine generator in which communication between the hub and the nacelle is performed by superimposing an information signal onto AC power carried over an AC power line between the hub and the nacelle via the slip ring.

摘要翻译： 本发明的目的是提供一种风轮机发电机，其中可以在轮毂和机舱之间的通信中添加通信信道，而不对滑环的设计进行修改。 本发明提供了一种风力涡轮发电机，其中通过将信息信号叠加在通过滑环的轮毂和机舱之间的AC电力线上承载的AC电力上来执行集线器和机舱之间的通信。

公开(公告)号：US20110293418A1

公开(公告)日：2011-12-01

申请号：US12850204

申请日：2010-08-04

申请人： Mitsuya BABA

发明人： Mitsuya BABA

IPC分类号： F03D7/00 ,  F03D11/00

CPC分类号： F03D7/0268 ,  F03D7/0264 ,  F05B2270/1071 ,  Y02E10/723

摘要： In a conventional technique, a shutdown sequence indicating a sequential operation from a start of the feathering of a wind turbine to the stop is started in response to an alert signal caused by an external factor. In the present invention, when the alert is called off during the shutdown sequence, the shutdown sequence is stopped, and the recovery control by which the pitch angle of the wind turbine blade is controlled toward the fine state is performed. By such a control, the stop period of the wind turbine under the shutdown can be shortened, so that the decrease in the operating rate of the wind farm can be suppressed.

摘要翻译： 在常规技术中，响应于由外部因素引起的警报信号，开始指示从风力涡轮机的羽化开始到停止的顺序操作的停机顺序。 在本发明中，当在关机顺序期间关闭警报时，停止关机顺序，并且执行将风力涡轮机叶片的俯仰角控制到微细状态的恢复控制。 通过这样的控制，可以缩短关闭时的风力涡轮机的停止期间，能够抑制风电场的运转率的下降。

公开(公告)号：US20120274067A1

公开(公告)日：2012-11-01

申请号：US13093964

申请日：2011-04-26

申请人： Mitsuya BABA ,  Yasutaka NISHIMOTO ,  Kei KUMAMOTO ,  Soshi MARUTA

发明人： Mitsuya BABA ,  Yasutaka NISHIMOTO ,  Kei KUMAMOTO ,  Soshi MARUTA

IPC分类号： H02P9/04

CPC分类号： F03D7/047 ,  Y02E10/723

摘要： An object of the present invention is to provide a wind turbine generator in which a communication channel can be added in communication between a hub and a nacelle, without making a modification to the design of a silo ring. The present invention provides a wind turbine generator in which communication between the hub and the nacelle is performed by superimposing an into signal onto AC power carried over an AC power line between the hub and the nacelle via the slip ring.

摘要翻译： 本发明的一个目的是提供一种风力涡轮发电机，其中可以在轮毂和机舱之间的通信中添加通信信道，而不改变筒仓的设计。 本发明提供了一种风力涡轮发电机，其中通过将信号叠加到通过滑环的轮毂和机舱之间的AC电力线上承载的AC电力上来执行集线器和机舱之间的通信。