公开(公告)号：US20110198846A1

公开(公告)日：2011-08-18

申请号：US13035141

申请日：2011-02-25

申请人： Tsuyoshi WAKASA ,  Akira YASUGI ,  Takatoshi MATSUSHITA ,  Takehiro NAKA ,  Takumi NAKASHIMA

发明人： Tsuyoshi WAKASA ,  Akira YASUGI ,  Takatoshi MATSUSHITA ,  Takehiro NAKA ,  Takumi NAKASHIMA

IPC分类号： H02P9/04 ,  F03D9/00

CPC分类号： H02P9/48 ,  F03D7/0272 ,  F03D7/028 ,  F03D7/042 ,  F05B2270/1016 ,  H02J3/1892 ,  H02J3/382 ,  H02J3/386 ,  H02P9/04 ,  H02P2101/15 ,  Y02E10/723 ,  Y02E10/725 ,  Y02E10/763

摘要： Reactive power is supplied in accordance with a reactive-power supply instruction from a power grid while ensuring a variable-speed range of a wound-rotor induction generator. A variable-speed power generator includes a prime mover that generates motive power by using natural energy; an electric generator that includes a stator having a primary winding and a rotor having a secondary winding, the stator and the rotor being connected to a power grid, and that generates electric power based on the motive power generated by the prime mover; and a power converter connected to the stator and the rotor, wherein the power converter does not supply reactive power to the power grid, and wherein the variable-speed power generator includes a power-converter controller that causes the electric generator to operate at a rotation speed set to be higher than or equal to a synchronous speed and increases reactive power supplied to the power grid when a reactive-power supply instruction for supplying reactive power to the power grid is obtained from the power grid.

摘要翻译： 在确保绕线转子感应发电机的可变速度范围的同时，根据来自电力网的无功电力供给指示来提供无功功率。 变速发电机包括通过使用自然能产生动力的原动机; 发电机，其包括具有初级绕组的定子和具有次级绕组的转子，所述定子和所述转子连接到电网，并且基于由所述原动机产生的动力产生电力; 以及连接到所述定子和所述转子的功率转换器，其中所述功率转换器不向所述电网提供无功功率，并且其中所述变速功率发生器包括功率转换器控制器，所述功率转换器控制器使所述发电机在旋转 速度设定为高于或等于同步速度，并且当从电网获得用于向电网提供无功功率的无功电力指令时，增加供给电网的无功功率。

公开(公告)号：US20130001955A1

公开(公告)日：2013-01-03

申请号：US13549995

申请日：2012-07-16

申请人： Tsuyoshi WAKASA ,  Akira YASUGI ,  Takatoshi MATSUSHITA ,  Takehiro NAKA ,  Takumi NAKASHIMA

发明人： Tsuyoshi WAKASA ,  Akira YASUGI ,  Takatoshi MATSUSHITA ,  Takehiro NAKA ,  Takumi NAKASHIMA

IPC分类号： F03D9/00

CPC分类号： H02P9/48 ,  F03D7/0272 ,  F03D7/028 ,  F03D7/042 ,  F05B2270/1016 ,  H02J3/1892 ,  H02J3/382 ,  H02J3/386 ,  H02P9/04 ,  H02P2101/15 ,  Y02E10/723 ,  Y02E10/725 ,  Y02E10/763

摘要： A variable-speed power generator includes a prime mover that generates motive power by using natural energy; a wound-rotor induction generator that includes a stator having a primary winding and a rotor having a secondary winding, which are connected to a power grid, the generator generating electric power based on the motive power generated by the prime mover; a power converter connected to the stator and the rotor; and a controller controlling wound-rotor induction generator. The controller responds to instructions, sent by the power grid, for supplying reactive power to the power grid. The response of the controller to an instruction for supplying reactive power to the power grid may include imposing limitations on the reactive power supplied by the power converter to the power grid and causing the wound-rotor induction generator to operate at a rotation speed set higher than or equal to a synchronous speed.

摘要翻译： 变速发电机包括通过使用自然能产生动力的原动机; 绕组转子感应发电机，其包括具有初级绕组的定子和具有次级绕组的转子，其连接到电网，所述发电机基于由所述原动机产生的动力产生电力; 连接到定子和转子的功率转换器; 以及控制绕线转子感应发电机的控制器。 控制器响应由电网发送的用于向电网提供无功功率的指令。 控制器对于向电网提供无功功率的指令的响应可能包括对功率转换器向电网提供的无功功率施加限制，并使绕组转子感应发电机以高于 或等于同步速度。

公开(公告)号：US20130093186A1

公开(公告)日：2013-04-18

申请号：US13709755

申请日：2012-12-10

申请人： Shinji ARINAGA ,  Takatoshi MATSUSHITA ,  Tsuyoshi WAKASA ,  Masaaki SHIBATA ,  Akira YASUGI

发明人： Shinji ARINAGA ,  Takatoshi MATSUSHITA ,  Tsuyoshi WAKASA ,  Masaaki SHIBATA ,  Akira YASUGI

IPC分类号： F03D7/00

CPC分类号： F03D7/00 ,  F03D7/028 ,  F03D7/048 ,  F05B2240/40 ,  H02J3/1885 ,  H02J3/386 ,  H02P23/26 ,  H02P2201/15 ,  Y02E10/723 ,  Y02E10/763 ,  Y02E40/32

摘要： An object is to improve the accuracy of power factor adjustment. Power-factor command values corresponding to individual wind turbines are determined by correcting a predetermined power-factor command value for an interconnection node using power factor correction levels set for the individual wind turbines.

摘要翻译： 目的是提高功率因数调整的精度。 通过使用针对各个风力涡轮机设定的功率因数校正水平来校正互连节点的预定功率因子命令值来确定与各个风力涡轮机对应的功率因子指令值。

公开(公告)号：US20120286510A1

公开(公告)日：2012-11-15

申请号：US13556110

申请日：2012-07-23

申请人： Shinji ARINAGA ,  Tsuyoshi WAKASA ,  Takatoshi MATSUSHITA ,  Akira YASUGI ,  Masaaki SHIBATA

发明人： Shinji ARINAGA ,  Tsuyoshi WAKASA ,  Takatoshi MATSUSHITA ,  Akira YASUGI ,  Masaaki SHIBATA

IPC分类号： H02P9/04

CPC分类号： F03D7/026 ,  F03D7/0224 ,  F03D7/0276 ,  F05B2220/70644 ,  F05B2270/107 ,  F05B2270/327 ,  F05B2270/328 ,  Y02E10/723 ,  Y02E10/725

摘要： Provided is a wind power generation system intending to suppress an increase of torque when a voltage in a utility grid is restored, and to reduce a load to devices due to the torque. The blade control unit controls the pitch angle of the wind turbine blades such that a rotation speed of the power generator becomes equal to or greater than a synchronous rotation speed when the power control unit de-actuates the operations of the converter and the inverter, and controls the pitch angle of the wind turbine blades such that the pitch angle matches a target pitch angle that is determined based on one of a wind speed, a rotation speed of the power generator, and a requested output power when the power control unit re-actuates the operations of the converter and the inverter.

摘要翻译： 提供一种风力发电系统，其旨在在公用电网中的电压恢复时抑制转矩的增加，并且由于转矩而减小对设备的负载。 叶片控制单元控制风力涡轮机叶片的俯仰角，使得当功率控制单元解除转换器和逆变器的操作时，发电机的转速变为等于或大于同步转速，以及 控制风力涡轮机叶片的俯仰角，使得俯仰角与基于风速，发电机的旋转速度和所需输出功率中确定的目标俯仰角匹配，当功率控制单元重新开始时， 启动变频器和变频器的运行。

公开(公告)号：US20130193934A1

公开(公告)日：2013-08-01

申请号：US13768538

申请日：2013-02-15

申请人： Shinji ARINAGA ,  Tsuyoshi WAKASA ,  Takatoshi MATSUSHITA

发明人： Shinji ARINAGA ,  Tsuyoshi WAKASA ,  Takatoshi MATSUSHITA

IPC分类号： H02P9/10

CPC分类号： H02P9/105 ,  F03D7/0276 ,  F03D7/0284 ,  F03D7/042 ,  F03D9/255 ,  F05B2270/337 ,  Y02E10/723 ,  Y02E10/725

摘要： It is an object to stabilize a utility grid even when an unexpected fluctuation in the frequency of the utility grid occurs. A wind turbine generator includes a rotor that rotates by wind power, a generator that is driven by rotation of the rotor, and a control device that controls a power output of the generator to increase while a rotational speed of the generator decreases when a frequency of a utility grid becomes smaller than or equal to a predetermined rated frequency and when the rotational speed of the generator is greater than or equal to a first predetermined value. In this way, even when the frequency of the utility grid fluctuates, the frequency fluctuation can be suppressed, and the utility grid can be stabilized.

摘要翻译： 即使发生公用电网的频率的意外波动，也是使公用电网稳定的目标。 风力发电机包括通过风力转动的转子，通过转子的旋转而驱动的发电机，以及控制装置，当发电机的转速降低时，发电机的功率输出减小， 公用电网变得小于或等于预定的额定频率，并且当发电机的转速大于或等于第一预定值时。 这样，即使公用电网的频率波动，也可以抑制频率波动，能够使公用电网稳定。

公开(公告)号：US20130221934A1

公开(公告)日：2013-08-29

申请号：US13752965

申请日：2013-01-29

申请人： Tsuyoshi WAKASA ,  Hisanobu SHINODA ,  Hidekazu ICHINOSE ,  Yukio YAMASHITA ,  Takatoshi MATSUSHITA

发明人： Tsuyoshi WAKASA ,  Hisanobu SHINODA ,  Hidekazu ICHINOSE ,  Yukio YAMASHITA ,  Takatoshi MATSUSHITA

IPC分类号： H02P9/02

CPC分类号： H02P9/02 ,  F03D7/0284 ,  F03D9/25 ,  F03D9/257 ,  F03D9/28 ,  F05B2260/406 ,  H02J3/386 ,  H02P9/04 ,  Y02E10/723 ,  Y02E10/725 ,  Y02E10/763 ,  Y02P80/158

摘要： In a wind turbine generator, the rotation of the rotor is speeded up by a hydraulic pump and a hydraulic motor and is transferred to a synchronous generator. In a state in which the wind turbine generator is interconnected to a utility grid, and the synchronous generator reaches a synchronous speed, if no mechanical power is transferred to the synchronous generator, a wind-turbine control system operates the synchronous generator as a synchronous condenser, thus controlling the magnitude of the field current of the synchronous generator. Thus, the wind turbine generator can supply reactive power to the utility grid without adding new equipment, such as a reactive power compensator using a semiconductor switch.

摘要翻译： 在风力涡轮发电机中，转子的旋转由液压泵和液压马达加速，并被传送到同步发电机。 在风力发电机与公用电网互连并且同步发电机达到同步转速的状态下，如果没有机械动力传递到同步发电机，则风力发电机组控制系统将同步发电机作为同步电容器 ，从而控制同步发电机励磁电流的大小。 因此，风力发电机可以向公用电网提供无功功率，而不需要增加新的设备，例如使用半导体开关的无功功率补偿器。

公开(公告)号：US20110089694A1

公开(公告)日：2011-04-21

申请号：US12916196

申请日：2010-10-29

申请人： Shinji ARINAGA ,  Tsuyoshi WAKASA ,  Takatoshi MATSUSHITA

发明人： Shinji ARINAGA ,  Tsuyoshi WAKASA ,  Takatoshi MATSUSHITA

IPC分类号： H02P9/04

CPC分类号： F03D7/043 ,  F03D7/0224 ,  F03D7/0272 ,  F03D7/028 ,  F05B2270/321 ,  F05B2270/327 ,  F05B2270/706 ,  H02P9/04 ,  H02P2101/15 ,  Y02E10/723

摘要： A wind turbine generator system includes: a wind turbine rotor including a blade having a variable pitch angle; a generator driven by the wind turbine rotor; and a control unit controlling the output power of the generator and the pitch angle of the blade in response to the rotational speed of the wind turbine rotor or the generator. The control unit performs a first control in which the output power is controlled in accordance with a predetermined power-rotational speed curve until the rotational speed is increased to reach a predetermined rated rotational speed, and performs a second control in which the output power is controlled to a predetermined rated power when the rotational speed exceeds the rated rotational speed; the control unit is responsive to the pitch angle for maintaining a state of performing the second control is or for switching to a state of performing the first control, when the rotational speed is reduced below the rated rotational speed after the control unit is once placed into the state of performing the second control.

摘要翻译： 风力涡轮发电机系统包括：风力涡轮机转子，其包括具有可变桨距角的叶片; 由风力涡轮机转子驱动的发电机; 以及控制单元，其响应于风力涡轮机转子或发电机的转速控制发电机的输出功率和叶片的俯仰角。 控制单元执行第一控制，其中根据预定的功率 - 转速曲线来控制输出功率，直到转速增加达到预定的额定转速，并执行输出功率被控制的第二控制 当转速超过额定转速时达到预定的额定功率; 控制单元响应于俯仰角以保持执行第二控制的状态，或者为了切换到执行第一控制的状态，当控制单元一旦被放置到转速之后，当转速降低到额定转速以下时 执行第二控制的状态。

公开(公告)号：US20110031748A1

公开(公告)日：2011-02-10

申请号：US12845984

申请日：2010-07-29

申请人： Shinji ARINAGA ,  Tsuyoshi WAKASA ,  Takatoshi MATSUSHITA

发明人： Shinji ARINAGA ,  Tsuyoshi WAKASA ,  Takatoshi MATSUSHITA

IPC分类号： H02P9/04

CPC分类号： H02P9/105 ,  F03D7/0276 ,  F03D7/0284 ,  F03D7/042 ,  F03D9/255 ,  F05B2270/337 ,  Y02E10/723 ,  Y02E10/725

摘要： [Problem] It is an object to stabilize a utility grid even when an unexpected fluctuation in the frequency of the utility grid occurs.[Solution] A wind turbine generator 1 includes a rotor 7 that rotates by wind power, a generator 5 that is driven by rotation of the rotor 7, and a control device 20 that controls a power output of the generator 5 to increase while a rotational speed of the generator 5 decreases when a frequency of a utility grid 13 becomes smaller than or equal to a predetermined rated frequency and when the rotational speed of the generator 5 is greater than or equal to a first predetermined value. In this way, even when the frequency of the utility grid 13 fluctuates, the frequency fluctuation can be suppressed, and the utility grid 13 can be stabilized.

摘要翻译： [问题]即使当公用电网的频率出现意外波动时，也是稳定公用电网的目标。 风力发电机1包括通过风力转动的转子7，通过转子7的旋转而驱动的发电机5，以及控制装置20，其控制发电机5的功率输出，同时旋转 当公用电网13的频率变得小于或等于预定的额定频率，并且当发电机5的转速大于或等于第一预定值时，发电机5的速度降低。 这样，即使公用电网13的频率波动，也能够抑制频率波动，能够使公用电网13稳定。

公开(公告)号：US20110182731A1

公开(公告)日：2011-07-28

申请号：US13027730

申请日：2011-02-15

申请人： Takehiro NAKA ,  Takatoshi MATSUSHITA ,  Nobuyasu NAKAMURA ,  Yoshihiko HAYASHI ,  Shinji ARINAGA

发明人： Takehiro NAKA ,  Takatoshi MATSUSHITA ,  Nobuyasu NAKAMURA ,  Yoshihiko HAYASHI ,  Shinji ARINAGA

IPC分类号： F03D1/06

CPC分类号： F03D80/30 ,  F05B2260/64 ,  Y02E10/721

摘要： A wind turbine blade has a blade body 11, a plurality of receptors 12, 13 embedded in and exposed to the surface of the blade body 11, a conductor layer 14 provided on the surface of the blade body 11 and connecting the receptors 12, 13 with one another and a downconductor 21 connected to the receptors 12, 13 and provided in the blade body 11. The downconductor 21 may be embedded in an insulator.

摘要翻译： 风力涡轮机叶片具有叶片体11，嵌入并暴露于叶片本体11的表面的多个受体12,13，设置在叶片体11的表面上并连接受体12,13的导体层14 彼此连接并且连接到受体12,13并且设置在叶片主体11中的下导体21.下导体21可以嵌入绝缘体中。

公开(公告)号：US20120133146A1

公开(公告)日：2012-05-31

申请号：US13308303

申请日：2011-11-30

申请人： Takehiro NAKA ,  Kentaro HAYASHI ,  Musashi KIMURA ,  Nobuyasu NAKAMURA ,  Takatoshi MATSUSHITA ,  Yoichiro TSUMURA ,  Atsushi YUGE

发明人： Takehiro NAKA ,  Kentaro HAYASHI ,  Musashi KIMURA ,  Nobuyasu NAKAMURA ,  Takatoshi MATSUSHITA ,  Yoichiro TSUMURA ,  Atsushi YUGE

IPC分类号： G01W1/00 ,  F03D9/00

CPC分类号： H02G13/00 ,  F03D80/30 ,  F05B2260/80 ,  G01R29/0842 ,  Y02E10/721

摘要： A lightning-strike detecting apparatus comprises: receptors (lightning members) that are provided at a plurality of locations on a wind turbine blade; lightning conductors that extend from these receptors to guide lightning-strike current to ground; a plurality of optical-fiber current sensors that are provided on the respective lightning conductors, detect lightning-strike current flowing in the lightning conductors, and output an optical signal; an optical signal converter that receives the individual optical signal output from these optical-fiber current sensors, converts the optical signals to the respective characteristic electrical signals, and outputs the electrical signals; and a controller that identifies the type of the electrical signal input from the optical signal converter, determines a lightning-strike spot on the basis of the type, and reports the lightning-strike spots.

摘要翻译： 雷击检测装置包括：设置在风力涡轮机叶片上的多个位置处的受体（闪电构件）; 从这些受体延伸的雷电导体将雷击电流引导到地面; 设置在各个避雷针上的多个光纤电流传感器，检测在雷电导体中流动的雷击电流，并输出光信号; 接收从这些光纤电流传感器输出的各个光信号的光信号转换器将光信号转换成各自的特征电信号，并输出电信号; 以及识别从光信号转换器输入的电信号的类型的控制器，基于该类型确定雷击点，并报告雷击点。