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    • 2. 发明授权
    • Variable speed wind turbine with reduced power fluctuation and a static
VAR mode of operation
    • 具有降低功率波动和静态VAR运行模式的变速风力发电机
    • US5225712A
    • 1993-07-06
    • US799416
    • 1991-11-27
    • William L. Erdman
    • William L. Erdman
    • F03D7/02F03D7/04F03D9/00H02J3/18H02J3/40H02P9/00H02P9/04H02P9/42H02P9/48H02P21/00H02P21/06
    • F03D7/0272F03D7/0276F03D7/042F03D9/003H02J3/1842H02J3/1892H02J3/38H02J3/386H02J3/40H02P21/06H02P9/04H02P9/42H02P9/48F05B2220/706F05B2220/7064F05B2270/1016F05B2270/1032F05B2270/104F05B2270/20F05B2270/327F05B2270/328F05B2270/335H02M2007/53876H02P2101/15Y02E10/563Y02E10/723Y02E10/725Y02E10/763Y02E40/22
    • A wind turbine power converter is disclosed herein that smooths the output power from a variable speed wind turbine, to reduce or eliminate substantial power fluctuations on the output line. The power converter has an AC-to-DC converter connected to a variable speed generator that converts wind energy to electric energy, a DC-to-AC inverter connected to a utility grid, and DC voltage link connected to an electrical energy storage device such as a battery or a fuel cell, or a photovoltaic or solar cell. Also, an apparatus and method is disclosed herein for controlling the instantaneous current flowing through the active switches at the line side inverter to supply reactive power to the utility grid. The inverter can control reactive power output as a power factor angle, or directly as a number of VARs independent of the real power. Reactive power can be controlled in an operating mode when the wind turbine is generating power, or in a static VAR mode when the wind turbine is not operating to produce real power. To control the reactive power, a voltage waveform is used as a reference to form a current control waveform for each output phase. The current control waveform for each phase is applied to a current regulator which regulates the drive circuit that controls the currents for each phase of the inverter. Means for controlling the charge/discharge ratio and the regulating the voltage on the DC voltage link is also disclosed.
    • 本文公开了一种风力涡轮机功率转换器,其使来自变速风力涡轮机的输出功率平滑,以减少或消除输出线上的实质功率波动。 功率转换器具有连接到将风能转换为电能的变速发电机的AC至DC转换器,连接到公用电网的DC至AC逆变器以及连接到电能存储装置的DC电压链路 作为电池或燃料电池,或光伏或太阳能电池。 此外,本文公开了一种用于控制流过线路侧逆变器上的有源开关的瞬时电流以向公用电网提供无功功率的装置和方法。 逆变器可以将无功功率输出控制为功率因数角,或直接作为独立于有功功率的多个VAR。 当风力涡轮机正在发电时,或者当风力涡轮机不工作以产生实际功率时,可以以静态VAR模式来控制无功功率。 为了控制无功功率,使用电压波形作为参考,以形成每个输出相的电流控制波形。 每相的电流控制波形被施加到电流调节器,电流调节器调节控制逆变器每相的电流的驱动电路。 还公开了用于控制充电/放电比率和调节直流电压链路上的电压的装置。
    • 3. 发明授权
    • Turbine driven electric power production system and a method for control thereof
    • 涡轮驱动电力生产系统及其控制方法
    • US07863767B2
    • 2011-01-04
    • US11921659
    • 2006-10-31
    • Peter ChappleOle Gunnar DahlhaugPer Olav Haarberg
    • Peter ChappleOle Gunnar DahlhaugPer Olav Haarberg
    • F03B13/00H02P9/04F03D9/00F03B13/10
    • F03D7/02F03D7/0224F03D7/0284F03D7/043F03D9/255F03D15/00F03D80/70F05B2210/16F05B2260/406F05B2260/74F05B2270/101F05B2270/104F05B2270/327F05B2270/337F16H61/465F16H61/47Y02E10/723
    • A turbine (2) driven electric power production system (1),—said turbine (2) arranged for being driven by a fluid (3) having a fluid speed (v) varying in time,—said turbine (2) connected to a hydrostatic displacement pump (6) further connected to a hydrostatic displacement motor (8) as part of a closed loop hydrostatic transmission system (7),—said motor (8) arranged for driving an electrical generator (9) supplying AC power (10) at a frequency (fg) near a given desired frequency (fdes), characterized by a closed loop system arranged for controlling a volumetric displacement (13) of the hydrostatic motor (8), comprising—a fluid speed meter (11m) arranged for producing a speed signal (11s) representing a speed (v) of said fluid (3), and—a rotational speed meter (12m) arranged for providing a rotational speed signal (12s) representing a rotational speed measurement (ω) of said turbine (2), —a motor displacement control system (15) for continuously receiving said speed signal (11s) and said rotational speed signal (12s) and arranged for calculating a control signal (16), —a volumetric displacement control actuator (17) on said hydrostatic motor, arranged for receiving said control signal (16) for continuously adjusting a volumetric displacement (d) of said hydrostatic motor (8) for maintaining a set turbine tip speed ratio (tsrset) and thereby providing an improved power efficiency of the power production system (1) during fluctuations in said fluid speed (v).
    • 一种涡轮机(2)驱动的电力生产系统(1), - 所述涡轮机(2)被布置成由具有随时间变化的流体速度(v)的流体(3)驱动,所述涡轮机(2)连接到 静压容积泵(6)进一步连接到作为闭环静液压传动系统(7)的一部分的静液驱动马达(8),所述马达(8)布置成驱动提供交流电力(10)的发电机(9) 在特定的期望频率(fdes)附近的频率(fg)处,其特征在于设置有用于控制静液压马达(8)的体积位移(13)的闭环系统,包括:流体速度计(11m) 表示所述流体(3)的速度(v)的速度信号(11s)和布置成提供表示所述涡轮机的转速测量(ω)的转速信号(12s)的转速计(12m) 2), - 用于连续接收所述速度信号的电动机位移控制系统(15) (11s)和所述转速信号(12s),并且被布置成用于计算控制信号(16), - 所述静液压马达上的体积位移控制致动器(17),被布置成用于接收所述控制信号(16),用于连续地调节体积 所述静液压马达(8)的位移(d)用于维持设定的涡轮机叶尖速度比(tsrset),从而在所述流体速度(v)的波动期间提供功率生产系统(1)的改进的功率效率。
    • 8. 发明授权
    • Variable speed wind turbine with doubly-fed induction generator compensated for varying rotor speed
    • 具有双馈感应发电机的变速风力发电机补偿了转子转速的变化
    • US07800243B2
    • 2010-09-21
    • US12606807
    • 2009-10-27
    • Flemming Buus BendixenGert Karmisholt AndersenKim Brondum Larsen
    • Flemming Buus BendixenGert Karmisholt AndersenKim Brondum Larsen
    • H02P9/00
    • F03D7/0272F03D9/255F05B2270/104F05B2270/327Y02E10/723
    • A variable rotational speed wind turbine includes a doubly-fed induction generator, a rotor current controller for controlling the rotor currents of the generator, a compensation mechanism having a computation mechanism, and an input mechanism for providing input to the compensation mechanism, the input being representative of at least the instantaneous angular speed of the rotor of the generator. The computation mechanism is arranged to compute an instantaneous compensation control output in dependency of the instantaneous angular speed of the rotor of the generator and feed the compensation control output to the rotor, and to compute the compensation control output during operation of the wind turbine to compensate at least partly for dependencies on the rotor angular speed of the locations of poles of a generator transfer function, thus making a resulting generator transfer function substantially independent of variations in the rotor angular speed during operation of the wind turbine.
    • 可变转速风力涡轮机包括双馈感应发电机,用于控制发电机的转子电流的转子电流控制器,具有计算机构的补偿机构和用于向补偿机构提供输入的输入机构,输入为 代表发电机的转子的至少瞬时角速度。 计算机构被配置为根据发电机的转子的瞬时角速度来计算瞬时补偿控制输出,并将补偿控制输出馈送到转子,并计算风力涡轮机运行期间的补偿控制输出以补偿 至少部分地取决于发电机传递函数的极点的转子角速度的因素,从而使得所产生的发电机传递函数基本上与风力涡轮机运行期间的转子角速度的变化无关。
    • 9. 发明申请
    • POWER GENERATING APPARATUS OF RENEWABLE ENERGY TYPE AND METHOD OF OPERATING THE SAME
    • 可再生能源类型的发电装置及其运行方法
    • US20130249214A1
    • 2013-09-26
    • US13390903
    • 2011-05-30
    • Hidekazu IchinoseKazuhisa TsutsumiMasayuki ShimizuNiall CaldwellDaniil DumnovWilliam RampenStephen LairdVenkata Pappala
    • Hidekazu IchinoseKazuhisa TsutsumiMasayuki ShimizuNiall CaldwellDaniil DumnovWilliam RampenStephen LairdVenkata Pappala
    • H02P9/06
    • H02K7/1807F03D9/255F03D9/28F03D15/00F05B2260/406F05B2270/101F05B2270/1014F05B2270/104F16H61/468F16H2059/6861H02P9/06Y02E10/722Y02E10/725Y02P80/158
    • In view of the problems above, it is an object of the present invention is to provide a power generating apparatus of renewable energy type which can achieve a desired output of the hydraulic motor and a stable power generation regardless of changes of the renewable energy as well as a method of operation such an apparatus. The power generating apparatus which generates power from a renewable energy source, includes a rotating shaft 8 driven by the renewable energy, a hydraulic pump 12 of variable displacement type driven by the rotating shaft 8, a hydraulic motor 14 driven by pressurized oil supplied from the hydraulic pump 12, a generator 20 coupled to the hydraulic motor 14, a high pressure oil line 16 through which a discharge side of the hydraulic pump 12 is in communication with an intake side of the hydraulic motor 14, a low pressure oil line 18 through which an intake side of the hydraulic pump 12 is in communication with a discharge side of the hydraulic motor, a motor target output determination unit 45 which determines the target output of the hydraulic motor 14, POWERmotor based on the target output of the hydraulic pump, POWERpump, a motor demand output determination unit 46 which determines a displacement demand Dm of the hydraulic motor 14 based on the target output of the hydraulic motor 14, POWERmotor so that the rotation speed of the generator 20 is constant, and a motor controller 48 which adjust the displacement of the hydraulic motor to the displacement demand Dm.
    • 鉴于上述问题,本发明的目的是提供一种可再生能源类型的发电装置,其可以实现液压马达的期望输出和稳定的发电,而不管可再生能源的变化如何 作为这种装置的操作方法。 从可再生能源产生电力的发电装置包括由可再生能源驱动的旋转轴8,由旋转轴8驱动的可变排量型液压泵12,由从所述可再生能源供给的压力油驱动的液压马达14 液压泵12,与液压马达14连接的发电机20,液压泵12的排出侧与液压马达14的进气侧连通的高压油路16,低压油路18 液压泵12的进气侧与液压马达的排出侧连通的马达目标输出确定单元45,其基于液压泵的目标输出确定液压马达14的目标输出,动力马达, POWER泵,电动机需求输出判定部46,根据液压马达1的目标输出决定液压马达14的排量要求Dm 4,POWERmotor使得发电机20的转速恒定;以及电动机控制器48,其将液压马达的位移调节到排量要求Dm。
    • 10. 发明申请
    • Turbine driven electric power production system and a method for control thereof
    • 涡轮驱动电力生产系统及其控制方法
    • US20090140522A1
    • 2009-06-04
    • US11921659
    • 2006-10-31
    • Peter ChappleOle Gunnar DahlhaugPer Olav Haarberg
    • Peter ChappleOle Gunnar DahlhaugPer Olav Haarberg
    • F03D7/00
    • F03D7/02F03D7/0224F03D7/0284F03D7/043F03D9/255F03D15/00F03D80/70F05B2210/16F05B2260/406F05B2260/74F05B2270/101F05B2270/104F05B2270/327F05B2270/337F16H61/465F16H61/47Y02E10/723
    • A turbine (2) driven electric power production system (1), —said turbine (2) arranged for being driven by a fluid (3) having a fluid speed (v) varying in time, —said turbine (2) connected to a hydrostatic displacement pump (6) further connected to a hydrostatic displacement motor (8) as part of a closed loop hydrostatic transmission system (7), —said motor (8) arranged for driving an electrical generator (9) supplying AC power (10) at a frequency (fg) near a given desired frequency (fdes), characterized by a closed loop system arranged for controlling a volumetric displacement (13) of the hydrostatic motor (8), comprising —a fluid speed meter (11m) arranged for producing a speed signal (11s) representing a speed (v) of said fluid (3), and —a rotational speed meter (12m) arranged for providing a rotational speed signal (12s) representing a rotational speed measurement (ω) of said turbine (2), —a motor displacement control system (15) for continuously receiving said speed signal (11s) and said rotational speed signal (12s) and arranged for calculating a control signal (16), —a volumetric displacement control actuator (17) on said hydrostatic motor, arranged for receiving said control signal (16) for continuously adjusting a volumetric displacement (d) of said hydrostatic motor (8) for maintaining a set turbine tip speed ratio (tsrset) and thereby providing an improved power efficiency of the power production system (1) during fluctuations in said fluid speed (v).
    • 涡轮机(2)驱动的电力生产系统(1), - 涡轮机(2),被布置成由具有随时间变化的流体速度(v)的流体(3)驱动, - 涡轮机(2)连接到 流体静力容积泵(6)进一步连接到作为闭环静液压传动系统(7)的一部分的静液驱动马达(8),安装用于驱动提供交流电力(10)的发电机(9)的马达(8) 其特征在于设置成用于控制所述静液压马达(8)的体积位移(13)的闭环系统,所述闭环系统包括:流体速度计(11m),其被设置用于产生 表示所述流体(3)的速度(v)的速度信号(11s)和设置成提供表示所述涡轮机的转速测量(ω)的转速信号(12)的转速计(12m) 2),一个用于连续接收所述速度信号(11s)的马达位移控制系统(15) )和所述转速信号(12s),并被布置成用于计算控制信号(16), - 所述静液压马达上的体积位移控制致动器(17),被布置成用于接收用于连续调节体积位移的所述控制信号(16) d)所述静液压马达(8)用于维持设定的涡轮机叶尖速度比(tsrset),从而在所述流体速度(v)的波动期间提供功率生产系统(1)的改进的功率效率。