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公开(公告)号：WO2012028150A3
公开(公告)日：2012-06-28
申请号：PCT/DK2011050324
申请日：2011-08-29
IPC分类号： H02J3/38
CPC分类号： F03D7/00 , H02J3/18 , H02J3/386 , Y02E10/763 , Y02E40/30
摘要： A method of controlling an electric output of a wind park is carried out jointly by wind turbines with their local wind-turbine controllers and a central wind-park controller. The central wind-park controller generates a reference value for a wind turbine,based on the measured value of an electric quantity at a point of common measurement, and provides it to the local wind-turbine controller. The local wind-turbine controller produces a voltage or a reactive-power in the electric grid at the location of the wind turbine corresponding to the reference value, but which is corrected by a local correction. The local correction takes into account a voltage or a reactive-power change expected at the point of common measurement for the electric current supplied by the wind turbine due to the electric impedance of the grid connection to the point of common measurement.
摘要翻译： 控制风力发电场的电力输出的方法由风力涡轮机与其本地风力涡轮机控制器和中央风力发电机组控制器共同执行。 中央风力发电场控制器基于公共测量点处的电量的测量值生成风力涡轮机的参考值，并将其提供给本地风力涡轮机控制器。 本地风力涡轮机控制器在对应于参考值的风力涡轮机的位置处的电网中产生电压或无功功率，但是通过局部校正来校正该电压或无功功率。 局部修正考虑了由于电网连接到公共测量点的电阻抗而导致风力涡轮机供应的电流在共同测量点处预期的电压或无功功率变化。
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公开(公告)号：WO2012028150A2
公开(公告)日：2012-03-08
申请号：PCT/DK2011/050324
申请日：2011-08-29
IPC分类号： H02J3/00
CPC分类号： F03D7/00 , H02J3/18 , H02J3/386 , Y02E10/763 , Y02E40/30
摘要： A method of controlling an electric output of a wind park is carried out jointly by wind turbines with their local wind-turbine controllers and a central wind-park controller. The central wind-park controller generates a reference value for a wind turbine,based on the measured value of an electric quantity at a point of common measurement, and provides it to the local wind-turbine controller. The local wind-turbine controller produces a voltage or a reactive-power in the electric grid at the location of the wind turbine corresponding to the reference value, but which is corrected by a local correction. The local correction takes into account a voltage or a reactive-power change expected at the point of common measurement for the electric current supplied by the wind turbine due to the electric impedance of the grid connection to the point of common measurement.
摘要翻译： 控制风电场输出的方法由风力发电机与其局部风力发电机组控制器和中央风力发电机组控制器共同进行。 中央风力发电机控制器基于在公共测量点的电量的测量值为风力涡轮机产生参考值，并将其提供给局部风力涡轮机控制器。 本地风力涡轮机控制器在与基准值对应的风力涡轮机的位置处的电网中产生电压或无功功率，但是通过局部校正来校正。 局部校正考虑到由于电网连接到公共测量点的电阻抗而由风力涡轮机提供的电流在公共测量点处预期的电压或无功功率变化。
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公开(公告)号：WO2011104273A2
公开(公告)日：2011-09-01
申请号：PCT/EP2011/052678
申请日：2011-02-23
CPC分类号： H02P9/007 , F03D9/255 , F05B2270/32 , H02J3/1857 , H02J3/386 , H02P9/14 , Y02E10/763 , Y02E40/26
摘要： The present invention relates to a method for controlling a reactive power source in a wind power plant, the method comprising the steps of providing a wind turbine reactive power control signal and providing an active power reference signal, said active power reference signal being a measure of an active power production of the wind power plant. A control signal for the reactive power source is generated by combining the wind turbine reactive power control signal and the active power reference signal in such a way that the control signal for the reactive power source becomes a weighted signal of the wind turbine reactive power control signal. Moreover, the present invention relates to control units and wind power plants suitable for carrying out the present invention.
摘要翻译： 本发明涉及一种用于控制风力发电厂中的无功功率源的方法，所述方法包括以下步骤：提供风力涡轮机无功功率控制信号并提供有功功率参考信号，所述有功功率参考信号是 风力发电厂的有功电力生产。 通过组合风力涡轮机无功功率控制信号和有功功率参考信号，使得无功功率源的控制信号成为风力涡轮机无功功率控制信号的加权信号，从而产生无功功率源的控制信号 。 此外，本发明涉及适用于实施本发明的控制单元和风力发电设备。
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公开(公告)号：WO2010066892A2
公开(公告)日：2010-06-17
申请号：PCT/EP2009/066974
申请日：2009-12-11
IPC分类号： F03D7/04
CPC分类号： G05F1/70 , F03D9/255 , H02J3/16 , H02J3/386 , H02J3/50 , H02P9/04 , H02P9/102 , H02P2101/15 , Y02B70/126 , Y02E10/72 , Y02E10/763 , Y02E40/34
摘要： The present disclosure relates to method and a controller for controlling a wind power generation system. The system is connected to a grid at a point of connection, and is devised to feed reactive power to the grid in order to improve grid stability. A Q-V characteristic is determined for the grid at the point of connection as well as a nose point for the Q-V characteristic. A minimum reactive current, l Qmm , which is safe from the nose point, is determined, and the feeding of reactive power is controlled such that the reactive current is kept higher than the minimum reactive current. In this way it is made sure that the reactive current does not make the Q-V characteristic reverse, and thereby the stability of the system is improved.
摘要翻译： 本公开涉及用于控制风力发电系统的方法和控制器。 该系统在连接点处连接到电网，并且被设计为向电网馈送无功功率以便提高电网稳定性。 在连接点确定电网的Q-V特性以及Q-V特性的鼻尖点。 确定从鼻点安全的最小无功电流lQmm，并且控制无功功率的馈送，使得无功电流保持高于最小无功电流。 以这种方式确保无功电流不使Q-V特性相反，从而提高了系统的稳定性。
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公开(公告)号：WO2010037388A1
公开(公告)日：2010-04-08
申请号：PCT/DK2009/000212
申请日：2009-09-29
CPC分类号： H02J3/386 , H02H7/261 , H02J13/0006 , Y02E10/763 , Y02E40/72 , Y02E60/725 , Y02E60/74 , Y04S10/123 , Y04S10/20 , Y04S10/30
摘要： The present invention relates to a method for determining location of faults in a wind power plant comprising a first plurality of wind turbines arranged in n groups, each group comprising mn wind turbines electrically arranged in series, each of the wind turbines having a fault detector and a timing device for recording a time of fault occurrence, all groups electrically connected via a bus bar. The method may comprise the steps of detecting a fault, obtaining a status indicator from each of the fault detectors and timing devices, evaluating time of fault occurrence for two wind turbines in each of the n groups to determine if the fault have occurred inside a group, evaluating if a fault is registered in the wind turbine closest to the bus bar in each group. Further the present invention relates to a wind park.
摘要翻译： 本发明涉及一种用于确定风力发电厂中的故障位置的方法，包括以n组排列的第一组多个风力涡轮机，每个组包括串联电气布置的mn个风力涡轮机，每个风力涡轮机具有故障检测器和 用于记录故障发生时间的定时装置，所有组通过母线电连接。 该方法可以包括以下步骤：检测故障，从每个故障检测器和定时装置获得状态指示符，评估n组中的每一个中的两个风力涡轮机的故障发生时间，以确定故障是否发生在组内 评估每组中最靠近母线的风力涡轮机中是否记录故障。 此外，本发明涉及风力发电场。
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公开(公告)号：WO2012000515A2
公开(公告)日：2012-01-05
申请号：PCT/DK2011/050251
申请日：2011-06-29
IPC分类号： H02J3/12
CPC分类号： G05B11/01 , H02J3/1878 , H02J3/386 , H02P9/008 , H02P2101/15 , Y02E10/763 , Y02E40/30
摘要： A method for controlling a pilot signal (Ps) to a WPPT with an adjustable coil ratio, wherein the primary side of the transformer is connected to a plurality of WTGs and a variable reactive compensation load, the method comprising the steps of receiving an actual primary-side voltage (V MV ), receiving an actual primary-side current (I QMV ), estimating a line drop voltage (D V ) on the basis of the compensation current (I QC ) and the actual primary-side current (I QMV ), forming a voltage error (Verr) as the sum of a rated voltage value (V R ) and the estimated line drop voltage (D V ) minus the actual primary-side voltage (V MV ), namely: V err = V R + D V V MV , and updating the pilot signal (Ps) in accordance with the voltage error (V err ).
摘要翻译： 一种用于以具有可调节的线圈比率来将导频信号（Ps）控制到WPPT的方法，其中所述变压器的原边连接到多个WTG和可变的无功补偿负载，所述方法 包括以下步骤：接收实际初级侧电压（V MV），接收实际初级侧电流（I QMV），估计线路电压降（D < 基于补偿电流（I QC）和实际的初级侧电流（I QMV），形成电压误差（V IN） Verr）作为额定电压值（VrR）和估计的线路电压降（Dv）减去实际的一次侧电压（Vr）之和， MV ），即：V err = V R + D V V MV，并更新 根据电压误差（V err ），导频信号（Ps）。
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7.发明申请
公开(公告)号：WO2011150932A3
公开(公告)日：2011-12-08
申请号：PCT/DK2011/050184
申请日：2011-05-31
摘要： The present invention relates to a control system and an associated method for controlling an amount of reactive power delivered from a wind power plant to an associated power supply grid, the control system comprising a wind power plant controller and a number of wind turbine controllers each being in communication with said wind power plant controller, wherein the wind power plant controller is adapted to provide a grid voltage reference in response to a required total amount of reactive power to at least one wind turbine controller and operating a Switched Capacitor bank.
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公开(公告)号：WO2010108979A2
公开(公告)日：2010-09-30
申请号：PCT/EP2010/053905
申请日：2010-03-25
IPC分类号： F03D9/00
CPC分类号： F03D7/0284 , F03D7/043 , F03D9/255 , F05B2270/337 , H02J3/06 , H02J3/386 , Y02E10/723 , Y02E10/763
摘要： The present invention relates to a method for controlling a fundamental frequency of power supply grid being operatively connected to a power supply grid, the method comprising the steps of determining a steady-state and/or a dynamic-state related parameter of the associated power supply grid, and applying said determined parameter(s) in a frequency 5 controller of the wind turbine facility in order to improve frequency control of the fundamental frequency of the power supply grid.
摘要翻译： 本发明涉及一种用于控制供电电网的基频的方法，该方法可操作地连接到电网，该方法包括以下步骤：确定相关电源的稳态和/或动态相关参数 并且将所述确定的参数应用于风力涡轮机设施的频率5控制器中，以便改进对电力供应网格的基频的频率控制。
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9.发明申请A METHOD FOR CONTROLLING A COMMON OUTPUT FROM AT LEAST TWO WIND TURBINES, A CENTRAL WIND TURBINE CONTROL SYSTEM, A WIND PARK AND A CLUSTER OF WIND PARKS 审中-公开一种用于控制来自两个风力涡轮机的共同输出的方法，中央风力涡轮机控制系统，风车公园和风车公园集合
公开(公告)号：WO2009080036A1
公开(公告)日：2009-07-02
申请号：PCT/DK2008/000448
申请日：2008-12-22
IPC分类号： G05B13/02
CPC分类号： G05B13/021 , F03D7/0284 , F03D7/048 , F05B2270/20 , Y02E10/723
摘要： The invention relates a method for controlling a common output from at least two wind turbines comprising the steps of receiving at a central wind turbine control system at least one set point value of a set point parameter from a utility grid operator, and at least one operational value of a operational parameter from at least one of said wind turbines Furthermore the method comprises the steps of stablishing a cost function equation comprising at least one function variable reflecting an operational parameter of said wind turbines and said received set point parameter, solving the cost function equation with respect to said at least one function variable to find an extremum for said cost function, calculating weighted operational parameter set points for each of said wind turbines from the obtained solution, and controlling at least one of said wind turbines in relation to said weighted operational parameter set points. The invention also relates to a central wind turbine control system, a wind park and a cluster of wind parks.
摘要翻译： 本发明涉及一种用于控制来自至少两个风力涡轮机的公共输出的方法，包括以下步骤：在中央风力涡轮机控制系统处接收来自公用电网运营商的设定点参数的至少一个设定点值，以及至少一个操作 另外，该方法包括以下步骤：建立成本函数方程式，其包括反映所述风力涡轮机的操作参数和所述接收的设定点参数的至少一个函数变量，求解成本函数 相对于所述至少一个函数变量的方程，以找到所述成本函数的极值，从所获得的解决方案计算每个所述风力涡轮机的加权操作参数设定点，并且相对于所述加权的方法控制所述风力涡轮机中的至少一个 操作参数设定点。 本发明还涉及一种中央风力涡轮机控制系统，一个风力发电场和一组风力发电场。
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10.发明申请
公开(公告)号：WO2011104273A3
公开(公告)日：2011-11-17
申请号：PCT/EP2011052678
申请日：2011-02-23
CPC分类号： F03D9/003 , F03D9/255 , F05B2270/32 , H02J3/1857 , H02J3/386 , H02P9/007 , H02P9/14 , Y02E10/763 , Y02E40/26
摘要： The present invention relates to a method for controlling a reactive power source in a wind power plant, the method comprising the steps of providing a wind turbine reactive power control signal and providing an active power reference signal, said active power reference signal being a measure of an active power production of the wind power plant. A control signal for the reactive power source is generated by combining the wind turbine reactive power control signal and the active power reference signal in such a way that the control signal for the reactive power source becomes a weighted signal of the wind turbine reactive power control signal. Moreover, the present invention relates to control units and wind power plants suitable for carrying out the present invention.
摘要翻译： 本发明涉及一种用于控制风力发电站中的无功功率源的方法，该方法包括以下步骤：提供风力涡轮机无功功率控制信号并提供有功功率参考信号，所述有功功率参考信号是 该风力发电厂的一个有源电力生产。 通过组合风力涡轮机无功功率控制信号和有功功率参考信号来产生无功功率源的控制信号，使得无功功率源的控制信号变成风力涡轮机无功功率控制信号的加权信号 。 此外，本发明涉及适用于实施本发明的控制单元和风力发电站。
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