Wind turbine generator system
    61.
    发明授权
    Wind turbine generator system 有权
    风力发电系统

    公开(公告)号:US07847427B2

    公开(公告)日:2010-12-07

    申请号:US12553832

    申请日:2009-09-03

    IPC分类号: H02P9/00 F03D9/00

    摘要: To shorten a startup interval to reach a synchronizing condition, a phase difference and an amplitude difference between the grid voltage and the stator voltage of one phase of a winding are obtained. The difference in amplitude is decreased prior to or in parallel to synchronizing the stator voltage with the grid voltage. The calculated compensation phase compensation value is used as an initial value for synchronizing at the next synchronizing operation.

    摘要翻译: 为了缩短启动间隔以达到同步状态,获得了绕组的一相的电网电压和定子电压之间的相位差和振幅差。 在使定子电压与电网电压同步之前或之后,振幅的差异减小。 计算出的补偿相位补偿值用作在下一个同步操作下进行同步的初始值。

    WIND TURBINE GENERATOR SYSTEM
    62.
    发明申请
    WIND TURBINE GENERATOR SYSTEM 有权
    风力发电机系统

    公开(公告)号:US20100038908A1

    公开(公告)日:2010-02-18

    申请号:US12582199

    申请日:2009-10-20

    IPC分类号: F03D7/00 F03D9/00

    摘要: A wind turbine generator system can regulate the rotational velocity of the wind turbine within an operation range even when the wind velocity suddenly changes and can perform continuous operation of the wind turbine. The wind turbine generator system includes a generator connected to the shaft of the wind turbine and a converter connected to the generator. When the rotational velocity of the wind turbine is within a predetermined range, power outputted from the generator is controlled so as to follow the instruction concerning the generator output given from the wind turbine to the converter. When the rotational velocity of the wind turbine is out of the predetermined range, the power outputted from the generator is controlled without following the instruction concerning generator output given from the wind turbine to the converter.

    摘要翻译: 风力发电机系统即使当风速突然变化并且可以执行风力涡轮机的连续运行时,也可以在运行范围内调节风力涡轮机的旋转速度。 风力发电机系统包括连接到风力涡轮机的轴的发电机和连接到发电机的转换器。 当风力涡轮机的旋转速度在预定范围内时,控制从发电机输出的功率,以便遵循关于从风力涡轮机给转换器的发电机输出的指令。 当风力涡轮机的旋转速度超出预定范围时,从发电机输出的功率被控制,而不用遵循关于从风力涡轮机向转换器给出的发电机输出的指令。

    Wind turbine generator system
    63.
    发明授权
    Wind turbine generator system 有权
    风力发电系统

    公开(公告)号:US07615880B2

    公开(公告)日:2009-11-10

    申请号:US11774868

    申请日:2007-07-09

    IPC分类号: H02P9/04 F03D9/00 H02P9/46

    摘要: A wind turbine generator system can regulate the rotational velocity of the wind turbine within an operation range even when the wind velocity suddenly changes and can perform continuous operation of the wind turbine. The wind turbine generator system includes a generator connected to the shaft of the wind turbine and a converter connected to the generator. When the rotational velocity of the wind turbine is within a predetermined range, power outputted from the generator is controlled so as to follow the instruction concerning the generator output given from the wind turbine to the converter. When the rotational velocity of the wind turbine is out of the predetermined range, the power outputted from the generator is controlled without following the instruction concerning generator output given from the wind turbine to the converter.

    摘要翻译: 风力发电机系统即使当风速突然变化并且可以执行风力涡轮机的连续运行时,也可以在运行范围内调节风力涡轮机的旋转速度。 风力发电机系统包括连接到风力涡轮机的轴的发电机和连接到发电机的转换器。 当风力涡轮机的旋转速度在预定范围内时,控制从发电机输出的功率,以便遵循关于从风力涡轮机给转换器的发电机输出的指令。 当风力涡轮机的旋转速度超出预定范围时,从发电机输出的功率被控制,而不用遵循关于从风力涡轮机向转换器给出的发电机输出的指令。

    Wind Turbine Generator System
    65.
    发明申请
    Wind Turbine Generator System 有权
    风力发电机系统

    公开(公告)号:US20070200348A1

    公开(公告)日:2007-08-30

    申请号:US11679759

    申请日:2007-02-27

    IPC分类号: H02P9/04 F03D9/00

    摘要: To shorten a startup interval to reach a synchronizing condition, a phase difference and an amplitude difference between the grid voltage and the stator voltage of one phase of a winding are obtained. The difference in amplitude is decreased prior to or in parallel to synchronizing the stator voltage with the grid voltage. The calculated compensation phase compensation value is used as an initial value for synchronizing at the next synchronizing operation.

    摘要翻译: 为了缩短启动间隔以达到同步状态,获得了绕组的一相的电网电压和定子电压之间的相位差和振幅差。 在使定子电压与电网电压同步之前或之后,振幅的差异减小。 计算出的补偿相位补偿值用作在下一个同步操作下进行同步的初始值。

    Electrical rotating machine control unit and power generation system
    67.
    发明申请
    Electrical rotating machine control unit and power generation system 失效
    电动旋转机控制单元和发电系统

    公开(公告)号:US20050151504A1

    公开(公告)日:2005-07-14

    申请号:US10923195

    申请日:2004-08-20

    摘要: Because of the necessity of resolver for detecting a rotating position, which is very expensive, and noise suppression of the rotating position signal line on a doubly-fed machine, cost increase of the generator and reduced reliability due to possible failures are inevitable. In order to solve such problem, a generation system in the present invention is equipped with an exciter that estimates the slip frequency of the doubly-fed machine from each primary current I1 and voltage V1 and secondary current I2 and voltage V2 of the doubly-fed machine and excites the secondary of the doubly-fed machine at the estimated slip frequency.

    摘要翻译: 由于需要旋转变压器检测非常昂贵的旋转位置,并且双馈机器上的旋转位置信号线的噪声抑制,发电机的成本增加和由于可能的故障而导致的可靠性降低是不可避免的。 为了解决这样的问题,本发明的发电系统配备有从每个初级电流I 1 1和电压V 1估算双馈机器的转差频率的励磁机构 和双馈机器的二次电流I 2 2和电压V 2 2,并且以估计的滑差频率激励双馈机器的次级。

    Gas turbine system and method for controlling the same
    68.
    发明授权
    Gas turbine system and method for controlling the same 失效
    燃气轮机系统及其控制方法

    公开(公告)号:US06768277B2

    公开(公告)日:2004-07-27

    申请号:US10102598

    申请日:2002-03-18

    IPC分类号: H02P766

    摘要: In a gas turbine system having first power converter converting power system N AC voltage to DC voltage, second power converter converting the DC voltage into AC voltage, generator connected to second power converter's AC output and rotated by turbine and turbine controller outputting a revolution speed command value omg* according to a fuel flow rate of the turbine, a detector for detects a revolution speed omg of the generator, another detector detects Vdc of the first converter, a speed regulator generats a DC voltage command value according to a difference between omg and omg*, a switchover unit selects either a preset DC voltage command value Vref or the DC voltage command value according to the revolution speed omg and a voltage regulator and a controller control first power converter conversion output according to a control signal for making Vdc coincide with Vdc*.

    摘要翻译: 在具有将电力系统N交流电压转换为直流电压的第一功率转换器的燃气轮机系统中,将直流电压转换成交流电压的第二功率转换器,与第二功率转换器的交流输出相连接的发电机,由涡轮机和涡轮机控制器旋转输出转速指令 根据涡轮机的燃料流量计算值,检测器,用于检测发电机的转速,另一个检测器检测第一转换器的Vdc,速度调节器根据omg和 omg *,切换单元根据转速omg和调节器选择预置的直流电压指令值Vref或直流电压指令值,以及根据用于使Vdc与Vdc的Vdc一致的控制信号的控制器控制第一功率转换器转换输出 Vdc *。

    Controller and control techniques for windfarm
    69.
    发明授权
    Controller and control techniques for windfarm 有权
    风电场控制器和控制技术

    公开(公告)号:US08504212B2

    公开(公告)日:2013-08-06

    申请号:US12857198

    申请日:2010-08-16

    IPC分类号: G05D11/00

    摘要: The disclosed windfarm control system comprising a windfarm and a central controller; the windfarm including plural wind power generators whose rotational speeds are variable, plural aerographs disposed in the vicinity of the wind power generators to measure the directions and powers of the wind at the sites of the generators, and plural local controllers disposed in the vicinity of the wind power generators to control the output of the wind power generators by controlling the rotational speeds of the generators; wherein the central controller calculats the control level which maintains the output of the windfarm constant for a predetermined time period and instructs the local controllers to control the rpm's of the wind power generators in accordance with the control level.

    摘要翻译: 所公开的风电场控制系统包括风电场和中央控制器; 所述风电场包括多个风力发电机,其转速可变,设置在所述风力发电机附近的多个风路机,以测量在所述发电机的位置处的风的方向和功率,以及设置在所述风力发电机附近的多个本地控制器 风力发电机通过控制发电机的转速来控制风力发电机的输出; 其中中央控制器计算控制电平,该控制电平使风电场的输出保持恒定一段预定的时间段,并指示本地控制器根据控制电平来控制风力发电机的转速。

    Controller and control method for a wind farm including a plurality of wind turbine generators
    70.
    发明授权
    Controller and control method for a wind farm including a plurality of wind turbine generators 有权
    一种用于包括多个风力涡轮发电机的风力发电场的控制器和控制方法

    公开(公告)号:US08332077B2

    公开(公告)日:2012-12-11

    申请号:US12570169

    申请日:2009-09-30

    IPC分类号: G05D5/00 G05D9/00 G05D11/00

    摘要: In a controller for a windfarm including a plurality of wind turbine generators controllable in rotation frequency and pith of blades of the wind turbine generators, coupled to a grid through a transmission line, an anemometer is provided to each wind turbine generator to transmits wind direction and wind speed data to a central controller which process the wind direction and wind speed data to transmit an output command each wind turbine generator. The central controller predicts, on the basis of the wind speed detected by the upstream wind turbine generator, variation in wind speed at other wind turbine generators to control the output of the windfarm. The output power may be limited or charging energy as rotation energy of blades and discharging the rotation energy as output power in addition to a battery unit for averaging.

    摘要翻译: 在包括风力涡轮发电机的旋转频率和叶片可控制的多个风力发电机的风力发电机的控制器中,风力涡轮发电机通过传输线耦合到电网,风力计被提供给每个风力涡轮发电机以传输风向和 将风速数据传送到中央控制器,该中央控制器处理风向和风速数据,以传送每个风力涡轮发电机的输出指令。 中央控制器根据上游风力发电机检测到的风速预测其他风力发电机的风速变化,以控制风电场的输出。 除了用于平均的电池单元之外,输出功率可以被限制或者作为叶片的旋转能量的充电能量和作为输出功率的旋转能量的排出。