Wind turbine generator system
    91.
    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 POWER GENERATION SYSTEM
    93.
    发明申请
    WIND POWER GENERATION SYSTEM 有权
    风力发电系统

    公开(公告)号:US20100201330A1

    公开(公告)日:2010-08-12

    申请号:US12702922

    申请日:2010-02-09

    IPC分类号: H02P9/10

    CPC分类号: H02P9/105

    摘要: A wind power generation system includes an excessive current consumption device, an AC input of which is connected between a generator rotor and an excitation converter on a system failure to detect a DC voltage ascent of the excitation converter and operate a shunt circuit on the system failure.

    摘要翻译: 风力发电系统包括过电流消耗装置,其交流输入连接在发电机转子和励磁转换器之间,系统未能检测到激励转换器的直流电压上升并在系统故障时操作分流电路 。

    Wind Power Generation Apparatus, Wind Power Generation System And Power System Control Apparatus
    94.
    发明申请
    Wind Power Generation Apparatus, Wind Power Generation System And Power System Control Apparatus 审中-公开
    风力发电装置,风力发电系统和电力系统控制装置

    公开(公告)号:US20100102560A1

    公开(公告)日:2010-04-29

    申请号:US12648672

    申请日:2009-12-29

    IPC分类号: H02P9/04

    摘要: A power system control apparatus which controls a power system electrically connected to a wind power generation apparatus having a wind turbine which receives wind and rotates, a generator which generates electric power by the rotating wind turbine, and a power converter which converts the electric power generated by the generator. The power system control apparatus includes a voltage detector for detecting a voltage of the power system, a reactive power command value generation unit for generating a reactive power command value from a voltage detection value of the voltage detector, and a transmission unit for transmitting the reactive power command value to the wind power generation apparatus. Output fluctuation of the generator is suppressed, and reactive power according to the reactive power command value is transmitted from the wind power generation apparatus to the power system.

    摘要翻译: 一种电力系统控制装置,其控制与风力发电装置电连接的电力系统,所述风力发电装置具有接收风和旋转的风力涡轮机,通过所述旋转风力发电机产生电力的发电机,以及转换所产生的电力的功率转换器 由发电机。 电力系统控制装置包括用于检测电力系统的电压的电压检测器,用于根据电压检测器的电压检测值产生无功功率指令值的无功功率指令值生成单元,以及用于发送电抗器 功率指令值给风力发电装置。 发电机的输出波动被抑制,根据无功功率指令值的无功功率从风力发电装置传递给电力系统。

    WIND TURBINE GENERATOR SYSTEM
    96.
    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
    97.
    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。

    POWER CONVERTING DEVICE AND METHOD FOR CONTROLLING THE SAME
    98.
    发明申请
    POWER CONVERTING DEVICE AND METHOD FOR CONTROLLING THE SAME 有权
    电力转换装置及其控制方法

    公开(公告)号:US20090168474A1

    公开(公告)日:2009-07-02

    申请号:US11964274

    申请日:2007-12-26

    IPC分类号: H02M1/00

    CPC分类号: H02J3/01 Y02E40/40

    摘要: In a system to which a fluctuating load is connected, compensating for fluctuation in voltage harmonics at the load connecting point and fluctuation in system current harmonics has been difficult for a power converting device connected in parallel with the load. To resolve the problem, a power converting device connected in parallel with a fluctuating load includes: a Fourier series expansion unit which executes Fourier series expansion to load current by use of a reference sine wave in sync with a system and thereby outputs Fourier coefficients; and a fundamental component calculating unit which calculates a positive phase active fundamental component of the load current from the Fourier coefficients. A current instruction of the power converting device is generated by subtracting the fundamental current from the load current. With the current instruction, the fluctuations in system current harmonics and in voltage harmonics at the connecting point can be compensated for.

    摘要翻译: 在连接波动负载的系统中,与负载并联连接的电力转换装置难以补偿负载连接点的电压谐波的波动和系统电流谐波的波动。 为了解决该问题,与波动负载并联连接的电力转换装置包括:傅立叶级数扩展单元,其通过使用与系统同步的参考正弦波来执行傅立叶级数展开以加载电流,从而输出傅里叶系数; 以及从傅立叶系数计算负载电流的正相位有源基波分量的基波分量计算单元。 通过从负载电流中减去基波电流来产生电力转换装置的电流指令。 利用当前的指令,可以补偿系统电流谐波和连接点电压谐波的波动。

    Power Generation Apparatus Using AC Energization Synchronous Generator And Method Of Controlling The Same
    99.
    发明申请
    Power Generation Apparatus Using AC Energization Synchronous Generator And Method Of Controlling The Same 有权
    采用交流励磁同步发电机的发电装置及其控制方法

    公开(公告)号:US20090066297A1

    公开(公告)日:2009-03-12

    申请号:US12270175

    申请日:2008-11-13

    IPC分类号: H02P9/48 H02P9/42

    摘要: A power generation apparatus and method includes an AC energization synchronous generator, a switching device which connects to a network disposed on a stator side of the AC energization synchronous generator, an energizing device which applies a variable frequency AC to a secondary winding of the AC energization synchronous generator, and a first voltage detection unit which detects a voltage of the switching device on the stator side. A rotational frequency of the AC energization synchronous generator is estimated or calculated based on a frequency of a stator side voltage of the switching device, while the switching device is open.

    摘要翻译: 一种发电装置和方法,包括交流通电同步发电机,连接到设置在交流通电同步发电机的定子侧的网络的开关装置,向交流通电次级绕组施加变频交流的通电装置 同步发电机和检测定子侧的开关装置的电压的第一电压检测单元。 交流通电同步发电机的转速在切换装置断开时,基于开关装置的定子侧电压的频率来推定或计算。

    Power converter for doubly-fed power generator system
    100.
    发明授权
    Power converter for doubly-fed power generator system 失效
    用于双馈发电机系统的电力转换器

    公开(公告)号:US07485980B2

    公开(公告)日:2009-02-03

    申请号:US11624239

    申请日:2007-01-18

    IPC分类号: F03D9/00 H02P9/04

    摘要: An excitation power converter of a doubly-fed generator is protected from excess current to be caused by ground fault or system disturbance and operation continuity of the power converter is ensured. In a power converter system, in order not to flow excess current generated in secondary windings of the doubly-fed generator into the power converter, a rectifier is connected in parallel to the power converter via a reactor, a DC link of the rectifier is connected to a DC link of the power converter, excess current flowing from the secondary windings is separately flowed at a reactor impedance ratio to reduce an amount of current flowing into the power converter, and a semiconductor switching element of an excess current generation arm of the power converter is set to an on-state.

    摘要翻译: 双馈发电机的励磁功率转换器可以防止由接地故障或系统干扰引起的过电流,确保电源转换器的运行连续性。 在功率转换器系统中,为了不使在双馈发电机的次级绕组中产生的过剩电流流入功率转换器,整流器经由电抗器并联连接到功率转换器,整流器的直流链路被连接 对于功率转换器的DC链路,从次级绕组流出的过剩电流以电抗器阻抗比率分开流动,以减少流入功率转换器的电流量,以及功率的过电流产生臂的半导体开关元件 转换器设置为开状态。