POWER GENERATING APPARATUS OF RENEWABLE ENERGY TYPE AND OPERATION METHOD THEREOF
    3.
    发明授权
    POWER GENERATING APPARATUS OF RENEWABLE ENERGY TYPE AND OPERATION METHOD THEREOF 有权
    VORRICHTUNG ZUR STRMERZEUGUNG AUS ERNEUERBARER ENERGIE UND BETRIEBSVERFAHRENDAFÜR

    公开(公告)号:EP2486274B1

    公开(公告)日:2016-01-20

    申请号:EP11799882.3

    申请日:2011-11-30

    IPC分类号: F16H39/02 F03D11/02 F03D9/00

    摘要: It is intended to provide a power generating apparatus of renewable energy type and an operation method of the power generating apparatus, which can achieve both variable speed operation and grid connection without a frequency converting circuit and which uses a hydraulic transmission. In the power generating apparatus of renewable energy type 1, renewable energy received via a blade 4 is transmitted to a synchronous generator 20 via a rotating shaft 8 and a hydraulic transmission 10. The synchronous generator 20 is driven by a hydraulic motor 14 of the hydraulic transmission 10 to generate power. The synchronous generator 20 is connected to a grid without a frequency converting circuit and the power generated by the synchronous generator 20 is supplied to the grid 50. The power generating apparatus 1 is also provided with a transmission controller 40 which controls the hydraulic transmission 10. The transmission controller 40 controls the hydraulic transmission 10 in a normal operation mode to adjust displacement of each of a hydraulic pump 12 and the hydraulic motor 14 such that the rotating shaft 8 rotates at a rotational speed that is variable with respect to flow speed of the renewable energy while keeping a rotational speed of the synchronous generator 20 at a synchronous speed based on frequency of the grid 50 during normal operation of the power generating apparatus.

    摘要翻译: 本发明提供一种可再生能源型发电装置和发电装置的运行方法,其能够实现变频运行和电网连接,而无需频率转换电路并使用液压变速器。 在可再生能源类型1的发电装置中,经由叶片4接收的可再生能源经由旋转轴8和液压变速器10被传递到同步发电机20.同步发电机20由液压马达14驱动 传输10发电。 同步发电机20连接到没有频率转换电路的电网,并且同步发电机20产生的电力被提供给电网50.发电装置1还设置有控制液压变速器10的变速器控制器40。 变速器控制器40以正常操作模式控制液压变速器10,以调节液压泵12和液压马达14中的每一个的位移,使得旋转轴8以相对于液压马达14的流速可变的转速旋转 在发电装置的正常工作期间,基于电网50的频率,将同步发电机20的转速保持在同步速度。

    ENERGY EXTRACTION DEVICE, GROUP OF ENERGY EXTRACTION DEVICES AND OPERATING METHODS
    6.
    发明公开
    ENERGY EXTRACTION DEVICE, GROUP OF ENERGY EXTRACTION DEVICES AND OPERATING METHODS 有权
    ENERGIEGEWINNUNGSVORRICHTUNG,GRUPPE AUS ENERGIEGEWINNUNGSVORRICHTUNGEN UND BETRIEBSVERFAHREN

    公开(公告)号:EP2764240A2

    公开(公告)日:2014-08-13

    申请号:EP11735920.8

    申请日:2011-07-06

    IPC分类号: F03D9/00

    摘要: A wind turbine generator (100), or other energy extraction device, has a hydraulic circuit comprising a hydraulic pump (129) driven by a rotating shaft (125) and a hydraulic motor (131) driving an electricity generator (157), or other load. A high pressure manifold (133) extending between the pump and motor is in communication with an accumulator (145, 147, 149). A controller receives a control signal and regulates the displacement of working fluid by the hydraulic pump and the hydraulic motor relative to each other. Thus, power input through the rotating shaft and output to the load can be decoupled for at least a period of time and the energy output of energy extraction device can be varied, for example to smooth the total power output to an electricity grid (101), without compromising power input. A group of energy extraction devices can be controlled in concert to maximise power input while providing smooth power output. Individual electricity generators in different energy extraction devices can be switched on and off in concert to provide smooth power output while benefiting from the reduced energy losses that can be obtained by switching off electricity generators where possible.

    摘要翻译: 风力发电机(100)或其他能量提取装置具有液压回路,其包括由旋转轴(125)驱动的液压泵(129)和驱动发电机(157)的液压马达(131) 加载。 在泵和马达之间延伸的高压歧管(133)与蓄能器(145,147,149)连通。 控制器接收控制信号并且通过液压泵和液压马达相对于彼此调节工作流体的位移。 因此,通过旋转轴的输入和输出到负载的功率可以被去耦至少一段时间,并且能量提取装置的能量输出可以改变,例如平滑到电网(101)的总功率输出, ,而不损害电源输入。 一组能量提取装置可以协调一致地控制,以最大化功率输入,同时提供平滑的功率输出。 不同能量提取装置中的单个发电机可以一起打开和关闭,以提供平稳的功率输出,同时受益于尽可能关闭发电机可以获得的减少的能量损失。

    HYDRAULIC TRANSMISSION COMPRISING VARIABLE DISPLACEMENT PUMP OR MOTOR OPERABLE WITH DISCONTINUOUS RANGE OF DISPLACEMENTS
    7.
    发明公开
    HYDRAULIC TRANSMISSION COMPRISING VARIABLE DISPLACEMENT PUMP OR MOTOR OPERABLE WITH DISCONTINUOUS RANGE OF DISPLACEMENTS 有权
    结合正排量泵或发动机具有不连续位移场液压变速

    公开(公告)号:EP2649348A1

    公开(公告)日:2013-10-16

    申请号:EP12705172.0

    申请日:2012-01-31

    摘要: A hydraulic transmission comprises a variable displacement hydraulic pump and a variable displacement hydraulic motor, connected by high and low pressure lines. One of the hydraulic pump and the hydraulic motor has a discontinuous range of displacements. The other has a continuous range of displacements. In order to allow a continuous range of input and output torques, despite the discontinuous range of displacements, the pressure in a high pressure line is varied. This enables a hydraulic pump or motor which has a discontinuous range of displacements but other technical advantages, such as reduced torque ripple, to be employed without losing fine control of input and output torque. The hydraulic transmission is useful for a wind turbine where the turbine drives a hydraulic pump operated with a discontinuous range of displacements.

    摘要翻译: 液压传动装置包括一个可变排量液压泵和可变容量型液压马达,由高和低压线连接。 一液压泵和液压马达的具有位移的不连续的范围内。 另一个具有位移的连续范围。 为了允许输入和输出转矩的连续范围,尽管位移的不连续的范围内,在高压管线中的压力变化。 这使得液压泵或马达其中有位移但其它技术优点,:如降低转矩脉动的不连续范围,而不会失去输入和输出扭矩的精细控制被采用。 液压传动是用于在涡轮机驱动与位移的不连续范围内操作的液压泵的风力涡轮机是有用的。

    WIND TURBINE GENERATOR OR TIDAL CURRENT GENERATOR AND OPERATION METHOD THEREOF
    9.
    发明授权
    WIND TURBINE GENERATOR OR TIDAL CURRENT GENERATOR AND OPERATION METHOD THEREOF 有权
    WINDTBINENGENERATOR ODER GEZEITENENERGIERENERATOR UND BETRIEBSVERFAHRENDAFÜR

    公开(公告)号:EP2488751B1

    公开(公告)日:2014-01-08

    申请号:EP10785306.1

    申请日:2010-11-30

    摘要: An object of the invention is to provide a wind turbine generator or a tidal current generator which is equipped with a hydraulic transmission and achieves a superior power generation efficiency, and a operation method thereof. The wind turbine generator 1 comprises a hydraulic pump 12 of a variable displacement type which is rotated by the main shaft 8, a hydraulic motor 14 of a variable displacement type which is connected to the generator 20, and a high pressure oil line 16 and a low pressure oil line 18 which are arranged between the hydraulic pump 12 and the hydraulic motor 14. The pump controller 32 obtains a target torque of the hydraulic pump 12 at which a power coefficient becomes maximum, and then sets a displacement Dp of the hydraulic pump 12 based on the target torque and the pressure in the high pressure oil line 16. The motor controller 34 sets a displacement Dm of the hydraulic pump 14 based on a discharge amount Qp of the hydraulic pump obtained from the displacement Dp of the hydraulic pump 12 so that the rotation seed of the generator 20 becomes constant.

    摘要翻译: 本发明的目的是提供一种配备有液压变速器并实现优异发电效率的风力发电机或潮汐发电机及其运行方法。 风力发电机1包括由主轴8旋转的可变排量型液压泵12,连接到发电机20的可变排量型液压马达14和高压油管16 配置在液压泵12和液压马达14之间的低压油路18.泵控制器32获得功率系数变得最大的液压泵12的目标转矩,然后设定液压泵的位移Dp 基于目标转矩和高压油路16中的压力,马达控制器34基于从液压泵12的排量Dp获得的液压泵的排出量Qp来设定液压泵14的排量Dm 使得发电机20的旋转种子变得恒定。