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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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公开(公告)号：US08364323B2
公开(公告)日：2013-01-29
申请号：US12674873
申请日：2007-12-14
IPC分类号： G06F19/00
CPC分类号： H02P9/04 , F03D7/0272 , F03D7/028 , F03D7/048 , F05B2270/1033 , H02P2101/15 , Y02E10/723
摘要： A method of controlling an operation of a wind power generation system provided with a plurality of wind turbines, in which output power of each wind turbine is supplied to an electric power system through a common interconnection node where output data of each wind turbine is obtained, where a periodic correlation between output fluctuations of adjacent wind turbines is determined by using the output data, the correlation is determined as a strong correlation when the correlation is more than two times greater than an average level of the correlation, and a phase of the output of either one of the adjacent wind turbines is shifted by a period of the strong correlation.
摘要翻译： 一种控制具有多个风力涡轮机的风力发电系统的动作的方法，其中每个风力涡轮机的输出功率通过获得每个风力涡轮机的输出数据的公共互连节点提供给电力系统， 其中通过使用输出数据来确定相邻风力涡轮机的输出波动之间的周期性相关性，当相关值大于相关平均电平的两倍以上时，相关性被确定为强相关性，并且输出的相位 相邻的风力涡轮机中的任一个都被移动了强相关的时段。
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公开(公告)号：US20110291414A1
公开(公告)日：2011-12-01
申请号：US13055116
申请日：2009-02-20
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。
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7.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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8.发明授权Coordinated control of power converter and pitch angle for wind turbine generation system 失效风力发电系统功率转换器和俯仰角的协调控制公开(公告)号：US08749089B2
公开(公告)日：2014-06-10
申请号：US13556110
申请日：2012-07-23
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： A wind power generation system is disclosed for suppressing 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 wind power generation system includes a blade control unit for controlling the pitch angle of the wind turbine blades such that the pitch angle matches a target pitch angle determined on the basis of at least 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： 公开了一种用于在公用电网中的电压恢复时抑制转矩增加的风力发电系统，并且由于转矩而减少对装置的负载。 风力发电系统包括：叶片控制单元，用于控制风力涡轮机叶片的俯仰角，使得俯仰角与基于风速，发电机的转速中的至少一个所确定的目标俯仰角匹配; 以及当功率控制单元重新启动转换器和逆变器的操作时所请求的输出功率。
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公开(公告)号：US08355829B2
公开(公告)日：2013-01-15
申请号：US12673889
申请日：2007-12-14
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。
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公开(公告)号：US20100250012A1
公开(公告)日：2010-09-30
申请号：US12673889
申请日：2007-12-14
IPC分类号： H02P9/04
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。
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