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公开(公告)号：US09842426B2
公开(公告)日：2017-12-12
申请号：US14670927
申请日：2015-03-27
Applicant: ABB RESEARCH LTD
Inventor： Martin Naef , Mats Larsson
CPC classification number: G06T15/08 , G06T11/20 , G06T2200/04 , G06T2219/2004
Abstract: Exemplary methods and systems visualize or contour a power distribution system state by displaying to an operator output data values interpolated at output data locations from input data including distributed input data sensor locations in three dimensions and corresponding dynamically updated input data values. The method includes defining triangles in the volume, and determining, for each triangle, closest input data locations according to a closeness criteria. The method also includes projecting each triangle onto a visualization plane, and determining, for an output data location on the visualization plane at least one triangle, the projection of which includes the output data location. The method interpolates, for the output data location, the input data values of the closest input data locations of each of the at least one determined triangle to generate an output data value corresponding to the output data location.
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公开(公告)号：US09450409B2
公开(公告)日：2016-09-20
申请号：US13922644
申请日：2013-06-20
Applicant: ABB Research Ltd.
Inventor： Debrup Das , Reynaldo Nuqui , Mats Larsson
Abstract: Converter stations have real and reactive power set points initially determined as part of a main loadflow analysis routinely performed on the AC power system connected to the converter stations. Viable real and/or reactive power set points for the converter stations can be identified by calculating real and/or reactive power set point candidates for the converter stations before the main loadflow analysis is performed again on the AC power system. The power set point candidates are calculated based on information determined as part of a previous iteration of the main loadflow analysis on the AC power system. The power set point candidates which violate an operating constraint imposed on the AC power system are identified, and a region of valid power set points is defined for the converter stations that excludes the power set point candidates which violate an operating constraint imposed on the AC power system.
Abstract translation: 转换器站具有最初确定为在连接到转换器站的AC电力系统上常规执行的主要负载流分析的一部分的实际和无功功率设定点。 可以通过在AC电力系统再次执行主负载流分析之前计算转换器站的实际和/或无功功率设定点候选来识别转换站的可行的实际和/或无功功率设定点。 功率设定点候选是基于作为交流电力系统主负载流分析的先前迭代的一部分确定的信息来计算的。 识别违反施加在交流电力系统上的操作约束的功率设定点候选，并且为排除违反施加于交流电源的操作约束的功率设定点候选的转换器站定义有效功率设定点的区域 系统。
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公开(公告)号：US09124127B2
公开(公告)日：2015-09-01
申请号：US13790899
申请日：2013-03-08
Applicant: ABB RESEARCH LTD
Inventor： Adrian Timbus , Alexandre Oudalov , Mats Larsson , Cherry Yuen
CPC classification number: H02J9/06 , H02J3/381 , H02J13/0006 , H02J2003/388 , Y02B70/3216 , Y02E40/72 , Y02E60/74 , Y04S10/12 , Y04S10/30 , Y04S20/221 , Y10T307/344
Abstract: A method is provided for detecting islanding conditions in an electric power network which includes a plurality of sub-networks. The sub-networks include at least one power electrical unit and are separable from each other and a main grid supplying the network by switching devices. The method includes determining topological information of at least one sub-network of interest, detecting islanding conditions in at least one sub-network of interest on the basis of the topological information by using separate detecting devices for each sub-network of interest, and sending, on the basis of the islanding conditions detected by using the detecting devices, a disconnect signal to at least one power electrical unit in at least one sub-network of interest.
Abstract translation: 提供了一种用于检测包括多个子网络的电力网络中的孤岛状况的方法。 子网络包括至少一个电力单元，并且可以彼此分离，并且主网格由切换设备提供网络。 该方法包括确定感兴趣的至少一个子网络的拓扑信息，通过使用针对感兴趣的每个子网络的单独的检测设备，基于拓扑信息来检测至少一个感兴趣的子网络中的孤岛状态，以及发送 基于通过使用检测装置检测到的孤岛状态，在至少一个感兴趣的子网络中的至少一个电力单元的断开信号。
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Patent Agency Ranking
公开(公告)号：US09336616B2
公开(公告)日：2016-05-10
申请号：US14017832
申请日：2013-09-04
Applicant: ABB RESEARCH LTD
Inventor： Martin Naef , Mats Larsson
CPC classification number: G06T11/206 , G06T11/40 , H02J13/001 , Y04S10/40
Abstract: A method and system are provided for visualizing and displaying a state of a power transmission network to an operator, for the supervision of the network. The method and system are provided for visualizing or contouring a power transmission network state by displaying to an operator output data values interpolated at output data locations from input data including geographically distributed input data sensor locations and corresponding dynamically updated input data values. The method includes dividing a geographical area of interest into triangles, wherein a triangle vertex is defined at each input data location within the area, determining, for each triangle, closest input data locations according to a closeness criteria, and interpolating by weighting or scaling at each output data location within a triangle the input data values of a number of closest input data locations to generate output data values corresponding to the output data locations.
Abstract translation: 提供了一种方法和系统，用于将电力传输网络的状态可视化并显示给运营商，以用于网络的监督。 该方法和系统被提供用于通过向操作者显示在输出数据位置处内插的数据值，包括地理上分布的输入数据传感器位置和对应的动态更新的输入数据值，输出在输出数据位置上显示或轮廓化输电网状态。 该方法包括将感兴趣的地理区域划分为三角形，其中在区域内的每个输入数据位置处定义三角形顶点，根据接近度标准确定每个三角形最接近的输入数据位置，并通过加权或缩放内插 每个输出数据位置在一个三角形内的输入数据值的最接近的输入数据位置，以产生对应于输出数据位置的输出数据值。
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公开(公告)号：US09601926B2
公开(公告)日：2017-03-21
申请号：US14597922
申请日：2015-01-15
Applicant: ABB RESEARCH LTD
Inventor： Mats Larsson , Stefan Thorburn , Bertil Berggren
CPC classification number: H02J3/36 , H02J2003/007 , H02M5/42 , H02M7/7575 , Y02E60/60
Abstract: An exemplary Multi-Terminal High Voltage Direct Current (MTDC) system includes at least three terminals, where each terminal including a Voltage Source Converter (VSC) controlled by a VSC controller. A method for controlling the MTDC system includes providing a converter schedule including at least one of a desired power flow value and a DC voltage; determining, by a MTDC master controller, a present state of the MTDC system including a dynamic topology of the MTDC system; determining, by the MTDC master controller, based on the present state of the MTDC system, based on the schedule and based on MTDC system constraints, VSC controller parameters including droop settings for local control by the VSC controllers; and transmitting the VSC controller parameters to the VSC controllers.
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公开(公告)号：US09500685B2
公开(公告)日：2016-11-22
申请号：US14310245
申请日：2014-06-20
Applicant: ABB RESEARCH LTD
Inventor： Mats Larsson , Valentin Bürgler , Priscilla Owen , Michael Geiger
CPC classification number: G01R23/02 , H02J3/24 , H02J2003/007 , Y02E60/76 , Y04S40/22
Abstract: A method, resonance handling device and computer program product are disclosed for handling resonances in a power transmission system. The resonance handling device can include a resonance frequency determining unit configured to obtain measurements from measurement devices in the power transmission system, apply the measurements in at least one state space model and determine modal resonance frequencies in the system based on the application of the system measurements in the state space model, and an activity determining unit configured to determine the modal activity of at least one of the resonance frequencies.
Abstract translation: 公开了用于处理电力传输系统中的共振的方法，共振处理装置和计算机程序产品。 谐振处理装置可以包括谐振频率确定单元，其被配置为从电力传输系统中的测量装置获得测量值，在至少一个状态空间模型中应用测量值，并且基于系统测量值的应用来确定系统中的模态共振频率 以及活动确定单元，被配置为确定至少一个谐振频率的模态活动。
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公开(公告)号：US20130187454A1
公开(公告)日：2013-07-25
申请号：US13790899
申请日：2013-03-08
Applicant: ABB RESEARCH LTD
Inventor： Adrian TIMBUS , Alexandre Oudalov , Mats Larsson , Cherry Yuen
IPC: H02J9/06
CPC classification number: H02J9/06 , H02J3/381 , H02J13/0006 , H02J2003/388 , Y02B70/3216 , Y02E40/72 , Y02E60/74 , Y04S10/12 , Y04S10/30 , Y04S20/221 , Y10T307/344
Abstract: A method is provided for detecting islanding conditions in an electric power network which includes a plurality of sub-networks. The sub-networks include at least one power electrical unit and are separable from each other and a main grid supplying the network by switching devices. The method includes determining topological information of at least one sub-network of interest, detecting islanding conditions in at least one sub-network of interest on the basis of the topological information by using separate detecting devices for each sub-network of interest, and sending, on the basis of the islanding conditions detected by using the detecting devices, a disconnect signal to at least one power electrical unit in at least one sub-network of interest.
Abstract translation: 提供了一种用于检测包括多个子网络的电力网络中的孤岛状况的方法。 子网络包括至少一个电力单元，并且可以彼此分离，并且主网格由切换设备提供网络。 该方法包括确定感兴趣的至少一个子网络的拓扑信息，通过使用针对感兴趣的每个子网络的单独的检测设备，基于拓扑信息来检测至少一个感兴趣的子网络中的孤岛状态，以及发送 基于通过使用检测装置检测到的孤岛状态，在至少一个感兴趣的子网络中的至少一个电力单元的断开信号。
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公开(公告)号：US20140379157A1
公开(公告)日：2014-12-25
申请号：US13922644
申请日：2013-06-20
Applicant: ABB Research Ltd.
Inventor： Debrup Das , Reynaldo Nuqui , Mats Larsson
IPC: H02J3/14
Abstract: Converter stations have real and reactive power set points initially determined as part of a main loadflow analysis routinely performed on the AC power system connected to the converter stations. Viable real and/or reactive power set points for the converter stations can be identified by calculating real and/or reactive power set point candidates for the converter stations before the main loadflow analysis is performed again on the AC power system. The power set point candidates are calculated based on information determined as part of a previous iteration of the main loadflow analysis on the AC power system. The power set point candidates which violate an operating constraint imposed on the AC power system are identified, and a region of valid power set points is defined for the converter stations that excludes the power set point candidates which violate an operating constraint imposed on the AC power system.
Abstract translation: 转换器站具有最初确定为在连接到转换器站的AC电力系统上常规执行的主要负载流分析的一部分的实际和无功功率设定点。 可以通过在AC电力系统再次执行主负载流分析之前计算转换器站的实际和/或无功功率设定点候选来识别转换站的可行的实际和/或无功功率设定点。 功率设定点候选是基于作为交流电力系统主负载流分析的先前迭代的一部分确定的信息来计算的。 识别违反施加在交流电力系统上的操作约束的功率设定点候选，并且为排除违反施加于交流电源的操作约束的功率设定点候选的转换器站定义有效功率设定点的区域 系统。
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