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公开(公告)号：US08502406B2
公开(公告)日：2013-08-06
申请号：US13549995
申请日：2012-07-16
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。
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公开(公告)号：US08053917B2
公开(公告)日：2011-11-08
申请号：US13035141
申请日：2011-02-25
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。
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3.发明授权Wind-turbine-generator control apparatus, wind turbine generator system, and wind-turbine-generator control method 有权风力发电机组控制装置，风力发电机组，风力发电机组和风力发电机组控制方法公开(公告)号：US09341163B2
公开(公告)日：2016-05-17
申请号：US13454666
申请日：2012-04-24
申请人： Tsuyoshi Wakasa , Hisanobu Shinoda , Masayuki Hashimoto , Yukio Yamashita , Takehiro Naka , Akira Yasugi , Takumi Nakashima
发明人： Tsuyoshi Wakasa , Hisanobu Shinoda , Masayuki Hashimoto , Yukio Yamashita , Takehiro Naka , Akira Yasugi , Takumi Nakashima
CPC分类号： F03D7/0284 , F03D9/255 , F05B2270/1041 , F05B2270/335 , F05B2270/337 , Y02E10/72
摘要： A wind-turbine control device controls a wind turbine generator in which a rotor having a plurality of blades receives wind and rotates. The generator generates electrical power through the rotation of the rotor. The electrical power is supplied to a utility grid, and electric energy to be supplied to the utility grid can be changed according to a change in the frequency of the utility grid. The wind-turbine control device includes a subtracter to calculate a frequency change, which is the difference between a measurement value of the frequency of generated output power of the wind turbine generator and a set value of the frequency of the generated output power of the wind turbine generator. The wind-turbine control device further includes a limiter to limit a change in the electrical power corresponding to the frequency change calculated by the subtracter, based on the rotational speed of the generator.
摘要翻译： 风力涡轮机控制装置控制风力涡轮发电机，其中具有多个叶片的转子接收风并旋转。 发电机通过转子的旋转产生电力。 电力被提供给公用电网，并且可以根据公用电网频率的变化来改变供给公用电网的电能。 风力涡轮机控制装置包括用于计算频率变化的减法器，其是风力涡轮发电机的产生的输出功率的频率的测量值与所产生的风力输出功率的频率的设定值之间的差 涡轮发电机。 风力涡轮机控制装置还包括限制器，其基于发电机的转速来限制对应于由减法器计算的频率变化的电力变化。
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公开(公告)号：US08718832B2
公开(公告)日：2014-05-06
申请号：US13194139
申请日：2011-07-29
IPC分类号： G05D11/00
CPC分类号： F03D7/0284 , F03D7/048 , F05B2270/10711 , F05B2270/335 , F05B2270/337 , Y02E10/723
摘要： To prevent disconnection of wind turbine generators due to changes in wind conditions even if the wind turbine generators is operated to limit the power output. A plurality of wind turbine generators that generate electric power by the rotation of rotors are provided in a wind farm are interconnected and are operated while the power outputs are limited in advance so as to be able to further supply electric power to a utility grid in response to a decrease in the frequency or voltage of the utility grid. The rotational speed of the rotor, which is a physical quantity related to increase and decrease in the power output of the wind turbine generator, is measured for each of the wind turbine generators by a wind-turbine control system, and the limitation amount of the power output of the wind turbine generator is set for each of the wind turbine generators by a central control system on the basis of the rotational speed of the rotor measured.
摘要翻译： 为了防止由于风力发电机的变化而导致的风力发电机的断开，即使风力发电机被操作以限制功率输出。 在风力发电场中设置多个通过转子旋转产生电力的风力涡轮发电机相互连接并且在电力输出被预先限制的同时进行操作，以便能够响应地进一步向公用电网供电 降低公用电网的频率或电压。 通过风力涡轮机控制系统对每个风力涡轮发电机测量作为与风力发电机的功率输出的增加和减少相关的物理量的转子的转速，并且限制量 风力发电机的功率输出通过中央控制系统基于所测量的转子的转速而设定用于每个风力涡轮发电机。
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5.发明授权Control system of wind power generator, wind farm, and method for controlling wind power generator 有权风力发电机控制系统，风电场，风力发电机组控制方法公开(公告)号：US08903555B2
公开(公告)日：2014-12-02
申请号：US13420134
申请日：2012-03-14
IPC分类号： G05B21/00 , G01M1/38 , G05B13/00 , G05B15/00 , G05D23/00 , G05D3/12 , G05D5/00 , G05D9/00 , G05D11/00 , G05D17/00 , F03D9/00 , H02P9/04 , F03D7/02 , F03D7/04
CPC分类号： F03D7/048 , F03D7/0284 , F05B2270/337 , Y02E10/723 , Y02E10/725
摘要： A wind power generator generates power through a rotation of a rotor and is interconnected, and operated with its power generation output previously limited in order to be able to further supply the power to a power system in response to a decrease in system frequency. Thus, a concentrated control system derives a required restricted amount corresponding to a power generation output required to respond to the decrease in system frequency, derives a value by subtracting an amount corresponding to a latent power generation output with which the power generation output can be increased, from the required restricted amount, and sets a restricted amount of the power generation output in each wind power generator to perform the operation with the power generation output previously limited to respond to the decrease in system frequency, based on the above value.
摘要翻译： 风力发电机通过转子的旋转产生电力并且互连并且其先前被限制的发电输出操作，以便能够响应于系统频率的降低而进一步向电力系统供电。 因此，集中控制系统导出对应于响应于系统频率降低所需的发电输出的所需限制量，通过减去与可以增加发电输出的潜在发电输出相对应的量来导出值 根据上述值，根据所需的限制量，设定每个风力发电机中的发电输出的限制量，以前次限制的发电输出进行运行，以响应于系统频率的降低。
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公开(公告)号：US08217524B2
公开(公告)日：2012-07-10
申请号：US12768329
申请日：2010-04-27
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。
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