公开(公告)号：US20120205912A1

公开(公告)日：2012-08-16

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

IPC分类号： H02P9/10

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。

公开(公告)号：US20120104755A1

公开(公告)日：2012-05-03

申请号：US13194139

申请日：2011-07-29

申请人： Masayuki HASHIMOTO ,  Hisanobu SHINODA ,  Tsuyoshi WAKASA ,  Akira YASUGI ,  Takumi NAKASHIMA

发明人： Masayuki HASHIMOTO ,  Hisanobu SHINODA ,  Tsuyoshi WAKASA ,  Akira YASUGI ,  Takumi NAKASHIMA

IPC分类号： H02P9/04

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。

公开(公告)号：US20120104753A1

公开(公告)日：2012-05-03

申请号：US13017375

申请日：2011-01-31

申请人： Takumi NAKASHIMA ,  Masayuki HASHIMOTO ,  Akira YASUGI ,  Tsuyoshi WAKASA ,  Hisanobu SHINODA

发明人： Takumi NAKASHIMA ,  Masayuki HASHIMOTO ,  Akira YASUGI ,  Tsuyoshi WAKASA ,  Hisanobu SHINODA

IPC分类号： H02P9/04

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。

公开(公告)号：US20120261919A1

公开(公告)日：2012-10-18

申请号：US13420134

申请日：2012-03-14

申请人： Takumi NAKASHIMA ,  Masayuki HASHIMOTO ,  Akira YASUGI ,  Tsuyoshi WAKASA ,  Hisanobu SHINODA

发明人： Takumi NAKASHIMA ,  Masayuki HASHIMOTO ,  Akira YASUGI ,  Tsuyoshi WAKASA ,  Hisanobu SHINODA

IPC分类号： H02P9/04

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.

公开(公告)号：US20120061961A1

公开(公告)日：2012-03-15

申请号：US13117787

申请日：2011-05-27

申请人： Akira YASUGI ,  Tsuyoshi WAKASA ,  Hisanobu SHINODA

发明人： Akira YASUGI ,  Tsuyoshi WAKASA ,  Hisanobu SHINODA

IPC分类号： H02P9/10

CPC分类号： H02P9/10 ,  F03D7/0284 ,  F03D9/255 ,  F03D9/257 ,  F05B2270/337 ,  H02P2101/15 ,  Y02E10/723

摘要： An object of the present invention is to, if a frequency decrease has occurred in a power system, avoid a trip in a wind turbine generator and reliably contribute to recovery of the frequency of the power system. The present invention provides a wind turbine generator that, if a predetermined frequency decrease that requires PFR has occurred in the power system, calculates a marginal active power based on the difference between a predetermined rotational speed lower limit value, which is obtained by providing the parallel-off rotational speed with a predetermined margin, and a measured value of the shaft rotational speed, and generates an active power command value based on the marginal active power.

摘要翻译： 本发明的目的是如果在电力系统中发生频率下降，则避免风力涡轮发电机中的跳闸，并可靠地有助于恢复电力系统的频率。 本发明提供一种风力发电机，如果在电力系统中发生了需要PFR的预定频率降低，则基于通过提供并联而获得的预定转速下限值之间的差计算边际有功功率 具有预定余量的转速以及轴转速的测量值，并且基于边际有功功率产生有功功率指令值。

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。