Controller and control techniques for windfarm
    1.
    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
    2.
    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。

    Controller and Control Techniques for Windfarm
    3.
    发明申请
    Controller and Control Techniques for Windfarm 有权
    风电场控制器和控制技术

    公开(公告)号:US20110046803A1

    公开(公告)日:2011-02-24

    申请号:US12857198

    申请日:2010-08-16

    IPC分类号: G06F1/26

    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 WINDFARM
    4.
    发明申请
    CONTROLLER AND CONTROL METHOD FOR WINDFARM 有权
    WINDFARM的控制器和控制方法

    公开(公告)号:US20100078940A1

    公开(公告)日:2010-04-01

    申请号:US12570169

    申请日:2009-09-30

    IPC分类号: H02P9/04 G06F19/00

    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。

    DISTRIBUTED GENERATION SYSTEM AND POWER SYSTEM STABILIZING METHOD
    7.
    发明申请
    DISTRIBUTED GENERATION SYSTEM AND POWER SYSTEM STABILIZING METHOD 失效
    分布式发电系统和电力系统稳定方法

    公开(公告)号:US20100117606A1

    公开(公告)日:2010-05-13

    申请号:US12691790

    申请日:2010-01-22

    IPC分类号: H02P9/10

    CPC分类号: H02J3/24 H02J3/386 Y02E10/763

    摘要: A distributed generation system that can suppress a voltage fluctuation caused by a distributed generation by an apparatus of a small power capacity in the distributed generation itself and stabilize the power system voltage without inserting interharmonic voltage or current into the power system and without interference among a plurality of distributed generations. Parameter α(t) varying with time is estimated based on fluctuating component ΔP of the active power P generated by the distributed generation and the voltage fluctuating component ΔV attributable to the distributed generation developed at the point of connection between the distributed generation and power system. The distributed generation produces reactive power Q=−αP or Q=−αΔP, to thereby suppresses only the voltage fluctuation of the power system attributable to the distributed generation.

    摘要翻译: 一种分布式发电系统,其可以抑制由分布式发电本身中的小功率容量的装置的分布式发电引起的电压波动,并且稳定电力系统电压,而不将间谐波电压或电流插入到电力系统中,并且在多个 的分布式世代。 基于由分布式发电产生的有功功率P的波动分量&Dgr; P,以及归因于在分布式发电之间的连接点产生的分布式发电的电压波动分量&Dgr; V来估计随时间变化的参数α(t) 和电力系统。 分布式发电产生无功功率Q =-αP或Q =-α&Dgr; P,从而仅抑制归因于分布式发电的电力系统的电压波动。

    Power generation apparatus using AC energization synchronous generator and method of controlling the same
    8.
    发明授权
    Power generation apparatus using AC energization synchronous generator and method of controlling the same 有权
    使用交流通电同步发电机的发电装置及其控制方法

    公开(公告)号:US07453242B2

    公开(公告)日:2008-11-18

    申请号:US12031262

    申请日:2008-02-14

    IPC分类号: H02P9/44

    摘要: A power generation apparatus and method includes an AC energization synchronous generator, a switching device for connecting to a network disposed on a stator side of the AC energization synchronous generator, an energizing device for applying a variable frequency AC to a secondary winding of the AC energization synchronous generator, and a first voltage detection unit for detecting 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AC通电同步发电机,用于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,用于向交流通电的次级绕组施加变频AC的通电装置 同步发电机和用于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。

    Distributed generation system and power system stabilizing method
    9.
    发明授权
    Distributed generation system and power system stabilizing method 失效
    分布式发电系统和电力系统稳定方法

    公开(公告)号:US07948217B2

    公开(公告)日:2011-05-24

    申请号:US12691790

    申请日:2010-01-22

    CPC分类号: H02J3/24 H02J3/386 Y02E10/763

    摘要: A distributed generation system that can suppress a voltage fluctuation caused by a distributed generation by an apparatus of a small power capacity in the distributed generation itself and stabilize the power system voltage without inserting interharmonic voltage or current into the power system and without interference among a plurality of distributed generations. Parameter α(t) varying with time is estimated based on fluctuating component ΔP of the active power P generated by the distributed generation and the voltage fluctuating component ΔV attributable to the distributed generation developed at the point of connection between the distributed generation and power system. The distributed generation produces reactive power Q=−αP or Q=−αΔP, to thereby suppresses only the voltage fluctuation of the power system attributable to the distributed generation.

    摘要翻译: 一种分布式发电系统,其可以抑制由分布式发电本身中的小功率容量的装置的分布式发电引起的电压波动,并且稳定电力系统电压,而不将间谐波电压或电流插入到电力系统中,并且在多个 的分布式世代。 基于由分布式发电产生的有功功率P的波动分量&Dgr; P,以及归因于在分布式发电之间的连接点产生的分布式发电的电压波动分量&Dgr; V来估计随时间变化的参数α(t) 和电力系统。 分布式发电产生无功功率Q =-αP或Q =-α&Dgr; P,从而仅抑制归因于分布式发电的电力系统的电压波动。

    Wind power generation system
    10.
    发明授权
    Wind power generation system 有权
    风力发电系统

    公开(公告)号:US07728451B2

    公开(公告)日:2010-06-01

    申请号:US11954453

    申请日:2007-12-12

    IPC分类号: F03D9/00 H02P9/04

    摘要: A wind power generation system includes: a wind turbine in which at least one blade is mounted on an axis; a generator for generating multiphase alternating current power by rotation of the axis; and a multiphase power conversion device for performing PWM-control for adjustment and output of generated power of the generator. With the configuration, the PWM-control provides for each phase a control paused period in which no overlap occurs. Thus, the pulse density between the control period and the control paused period of other phases is low, thereby generating high and low density in an inter-phase pulse.

    摘要翻译: 风力发电系统包括:风力涡轮机,其中至少一个叶片安装在轴上; 用于通过所述轴的旋转产生多相交流电力的发电机; 以及用于执行用于调整和输出发电机的发电功率的PWM控制的多相电力转换装置。 通过该配置,PWM控制为每个阶段提供一个不发生重叠的控制暂停时段。 因此,控制周期与其他相的控制暂停时间之间的脉冲密度低,从而在相间脉冲中产生高和低密度。