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1.发明申请公开(公告)号：US20050231862A1
公开(公告)日：2005-10-20
申请号：US11081042
申请日：2005-03-15
CPC分类号： H02H1/0015 , H02H1/0053 , H02H1/0092
摘要： A digital signal processor implementation of three algorithms used to detect high impedance faults. The algorithms can be wavelet based, higher order statistics based and neural network based. The algorithms are modified to process one second of data instead of ten seconds of data and a double buffered acquisition is connected to the output of the algorithms.
摘要翻译： 一种用于检测高阻抗故障的三种算法的数字信号处理器实现。 算法可以基于小波，基于高阶统计和神经网络。 这些算法被修改为处理数据的一秒而不是十秒的数据，并且双缓冲采集被连接到算法的输出。
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公开(公告)号：US20060085146A1
公开(公告)日：2006-04-20
申请号：US10966432
申请日：2004-10-15
申请人： John Peterson , Ratan Das , Mohamed Haj-Maharsi
发明人： John Peterson , Ratan Das , Mohamed Haj-Maharsi
CPC分类号： H02H1/0015 , G01R31/025 , G01R31/1272 , H02H1/0092
摘要： A technique for dynamically determining the occurrence of a high impedance fault (HIF) independent of load. An HIF algorithm provides the energy value for a given number of samples of the input signal that is phase (load) currents and/or neutral (residual) current. The input signal energy value is multiplied by a factor that ranges from about 110% to about 300% to calculate a threshold energy value and the result of that calculation is stored in a buffer. A HIF detection signal is generated when the energy value determined for samples of the input signal that are the same in number as the given number of samples and taken after the given number of samples is greater than an energy value derived from a predetermined number of the calculated threshold energy values.
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3.发明申请公开(公告)号：US20120139241A1
公开(公告)日：2012-06-07
申请号：US12962218
申请日：2010-12-07
IPC分类号： H02P9/04
CPC分类号： F03D7/048 , F03D7/0224 , F03D7/0284 , F03D9/10 , F03D9/11 , F03D9/257 , F03D15/10 , F03D80/88 , F05B2270/337 , H02J3/32 , H02J3/386 , H02J3/46 , H02J13/0062 , H02J13/0075 , H02J13/0079 , Y02B90/222 , Y02B90/2638 , Y02B90/2653 , Y02E10/723 , Y02E10/725 , Y02E10/763 , Y02E10/766 , Y02E40/72 , Y02E60/722 , Y02E60/7838 , Y02E60/7853 , Y02E70/30 , Y04S10/123 , Y04S10/14 , Y04S20/12 , Y04S40/124 , Y04S40/126
摘要： Method, power plant, and computer program product for use in controlling power output by a power plant. The power plant includes a wind farm with a plurality of wind turbines, a grid power converter (such as one or more HVDC links), a sensor to measure the frequency of a power grid, and a supervisory controller. The supervisory controller implements a control algorithm that adjusts the power output from the power plant in response to the frequency of the power grid dropping below a first target frequency by changing the pitch of the blades of at least one wind turbine, increasing the level of a portion of the power contributed by at least one wind turbine, or increasing the level of the power output by the grid power converter.
摘要翻译： 方法，发电厂和计算机程序产品，用于控制发电厂的输出功率。 发电厂包括具有多个风力涡轮机的风力发电场，电网电力转换器（诸如一个或多个HVDC链路），用于测量电网频率的传感器和监控控制器。 监控控制器实现一种控制算法，其通过改变至少一个风力涡轮机的叶片的桨距来响应于电力网的频率降低到第一目标频率以下来调整来自发电厂的功率输出，从而提高 由至少一个风力涡轮机贡献的功率的一部分，或者增加电网功率转换器的功率输出的电平。
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公开(公告)号：US08121739B2
公开(公告)日：2012-02-21
申请号：US12980700
申请日：2010-12-29
IPC分类号： G06F1/30
CPC分类号： F03D7/0284 , F03D9/255 , F05B2270/337 , H02J3/1885 , H02J3/36 , H02J3/386 , Y02E10/72 , Y02E10/763 , Y02E40/32 , Y02E60/60
摘要： A wind power plant comprising a plurality of wind turbine converters coupled to a High Voltage Direct Current (HVDC) converter via an internal grid and a power plant controller. The power plant controller is configured to monitor a voltage of the internal grid, and allocate responsibility for generating reactive power to the HVDC converter and the wind turbine converters to maintain the voltage of the internal grid at a desired voltage.
摘要翻译： 一种风力发电设备，其包括经由内部电网与发电厂控制器耦合到高压直流（HVDC）转换器的多个风力涡轮机转换器。 发电厂控制器被配置为监测内部电网的电压，并分配负责向HVDC转换器和风力涡轮机转换器产生无功功率以将内部电网的电压维持在期望的电压。
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公开(公告)号：US09690267B2
公开(公告)日：2017-06-27
申请号：US14125354
申请日：2012-06-12
申请人： Mohamed Haj-Maharsi , Jason Hoffman
发明人： Mohamed Haj-Maharsi , Jason Hoffman
CPC分类号： G05B15/02 , F03D7/0284 , F03D7/042 , F03D7/048 , F03D9/007 , F03D9/11 , F03D9/255 , F03D9/257 , F05B2270/1071 , F05B2270/337 , H02J3/386 , H02S10/12 , Y02E10/723 , Y02E10/725 , Y02E10/763
摘要： A power plant controller (36) is described. The power plant controller (36) controls a power generation system (10) having one or more power generators (12) and an energy storage system (22), and provides a utility grid or transmission system operator with the capability to select the droop response provided by the power generation system. Accordingly, an operator can request a specific generator droop response in order to provide appropriate frequency and grid control services. The power plant controller (36) operates in real time determining one or more power characteristics of the power generation system (10). Based on these characteristics and an indication of a future predicted power output for the power generation system, the power plant controller can take the necessary steps to ensure that the power generation system is capable of responding with the selected droop response, or can advise the operator that a different droop is preferred.
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公开(公告)号：US20140316592A1
公开(公告)日：2014-10-23
申请号：US14125354
申请日：2012-06-12
申请人： Mohamed Haj-Maharsi , Jason Hoffman
发明人： Mohamed Haj-Maharsi , Jason Hoffman
CPC分类号： G05B15/02 , F03D7/0284 , F03D7/042 , F03D7/048 , F03D9/007 , F03D9/11 , F03D9/255 , F03D9/257 , F05B2270/1071 , F05B2270/337 , H02J3/386 , H02S10/12 , Y02E10/723 , Y02E10/725 , Y02E10/763
摘要： A power plant controller (36) is described. The power plant controller (36) controls a power generation system (10) having one or more power generators (12) and an energy storage system (22), and provides a utility grid or transmission system operator with the capability to select the droop response provided by the power generation system. Accordingly, an operator can request a specific generator droop response in order to provide appropriate frequency and grid control services. The power plant controller (36) operates in real time determining one or more power characteristics of the power generation system (10). Based on these characteristics and an indication of a future predicted power output for the power generation system, the power plant controller can take the necessary steps to ensure that the power generation system is capable of responding with the selected droop response, or can advise the operator that a different droop is preferred.
摘要翻译： 描述发电厂控制器（36）。 发电厂控制器（36）控制具有一个或多个发电机（12）和能量存储系统（22）的发电系统（10），并且向公用电网或传输系统操作者提供选择下降响应的能力 由发电系统提供。 因此，操作者可以请求特定的发电机下垂响应，以便提供适当的频率和电网控制服务。 发电厂控制器（36）实时地确定发电系统（10）的一个或多个功率特性。 根据这些特征和发电系统的未来预测功率输出的指示，电厂控制器可以采取必要步骤，以确保发电系统能够根据选定的下降响应进行响应，或者可以向运营商提供建议 优选不同的下垂。
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7.发明授权公开(公告)号：US08704390B2
公开(公告)日：2014-04-22
申请号：US12962218
申请日：2010-12-07
IPC分类号： F03D9/00
CPC分类号： F03D7/048 , F03D7/0224 , F03D7/0284 , F03D9/10 , F03D9/11 , F03D9/257 , F03D15/10 , F03D80/88 , F05B2270/337 , H02J3/32 , H02J3/386 , H02J3/46 , H02J13/0062 , H02J13/0075 , H02J13/0079 , Y02B90/222 , Y02B90/2638 , Y02B90/2653 , Y02E10/723 , Y02E10/725 , Y02E10/763 , Y02E10/766 , Y02E40/72 , Y02E60/722 , Y02E60/7838 , Y02E60/7853 , Y02E70/30 , Y04S10/123 , Y04S10/14 , Y04S20/12 , Y04S40/124 , Y04S40/126
摘要： Method, power plant, and computer program product for use in controlling power output by a power plant. The power plant includes a wind farm with a plurality of wind turbines, a grid power converter (such as one or more HVDC links), a sensor to measure the frequency of a power grid, and a supervisory controller. The supervisory controller implements a control algorithm that adjusts the power output from the power plant in response to the frequency of the power grid dropping below a first target frequency by changing the pitch of the blades of at least one wind turbine, increasing the level of a portion of the power contributed by at least one wind turbine, or increasing the level of the power output by the grid power converter.
摘要翻译： 方法，发电厂和计算机程序产品，用于控制发电厂的输出功率。 发电厂包括具有多个风力涡轮机的风力发电场，电网电力转换器（诸如一个或多个HVDC链路），用于测量电网频率的传感器和监控控制器。 监控控制器实现一种控制算法，其通过改变至少一个风力涡轮机的叶片的桨距来响应于电力网的频率降低到第一目标频率以下来调整来自发电厂的功率输出，从而提高 由至少一个风力涡轮机贡献的功率的一部分，或者增加电网功率转换器的功率输出的电平。
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公开(公告)号：US20110178646A1
公开(公告)日：2011-07-21
申请号：US12980700
申请日：2010-12-29
IPC分类号： G06F1/30
CPC分类号： F03D7/0284 , F03D9/255 , F05B2270/337 , H02J3/1885 , H02J3/36 , H02J3/386 , Y02E10/72 , Y02E10/763 , Y02E40/32 , Y02E60/60
摘要： A wind power plant comprising a plurality of wind turbine converters coupled to a High Voltage Direct Current (HVDC) converter via an internal grid and a power plant controller. The power plant controller is configured to monitor a voltage of the internal grid, and allocate responsibility for generating reactive power to the HVDC converter and the wind turbine converters to maintain the voltage of the internal grid at a desired voltage.
摘要翻译： 一种风力发电设备，其包括经由内部电网与发电厂控制器耦合到高压直流（HVDC）转换器的多个风力涡轮机转换器。 发电厂控制器被配置为监测内部电网的电压，并分配负责向HVDC转换器和风力涡轮机转换器产生无功功率以将内部电网的电压维持在期望的电压。
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