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1.发明授权公开(公告)号：US10025336B2
公开(公告)日：2018-07-17
申请号：US14055667
申请日：2013-10-16
Applicant: General Electric Company
Inventor： Chaitanya Ashok Baone , Nilanjan Ray Chaudhuri , Naresh Acharya
Abstract: A computer-based method for contingency analysis of oscillatory stability in an electrical power transmission system is provided. The method uses at least one processor. The method includes receiving, by the at least one processor, a plurality of component inputs from a plurality of system components within the electrical power transmission system. The method also includes generating a nominal matrix for the electrical power transmission system. The nominal matrix includes a set of equations at least partially modeling the electrical power transmission system. The method further includes calculating eigenvalues and eigenvectors of the nominal matrix. The method also includes identifying a contingency representing a postulated disturbance of the electrical power transmission system. The method further includes estimating a contingency eigenvalue for the contingency using the eigenvalues and eigenvectors of the nominal matrix.
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2.发明申请公开(公告)号：US20140180663A1
公开(公告)日：2014-06-26
申请号：US13724928
申请日：2012-12-21
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Naresh Acharya , Jovan Z. Bebic , Harjeet Johal , Kathleen Ann O'Brien
IPC: G06F17/50
CPC classification number: H02J13/001 , H02J2003/007 , Y02E60/76 , Y04S10/40 , Y04S40/22
Abstract: A system for accelerated assessment of operational uncertainties in an electrical power distribution system includes a plurality of utility assets, and a distribution analysis (“DA”) system. DA system includes a preparation module configured to identify a first network model and a reduced network model for the electrical power distribution system. DA system also includes an input module configured to identify a plurality of scenarios, and a reduced-model-analysis module configured to analyze the reduced network model using the plurality of scenarios, generating a first set of results, and to select a subset of scenarios based on the first set of results. DA system further includes a full-model-analysis module configured to analyze the first network model using the subset of scenarios, generating a second set of results. DA system also includes a command module configured to dispatch configuration commands to utility assets based on the second set of results.
Abstract translation: 一种用于加速评估配电系统中的运行不确定性的系统包括多个公用事业资产和分配分析（“DA”）系统。 DA系统包括准备模块，其被配置为识别用于配电系统的第一网络模型和减少的网络模型。 DA系统还包括被配置为识别多个场景的输入模块，以及被配置为使用所述多个场景来分析所述减少的网络模型的生成第一组结果并且选择场景的子集的简化模型分析模块 基于第一组结果。 DA系统还包括全模型分析模块，其被配置为使用所述场景子集分析所述第一网络模型，生成第二组结果。 DA系统还包括一个命令模块，配置为基于第二组结果将配置命令分配给公用事业资产。
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公开(公告)号：US10423185B2
公开(公告)日：2019-09-24
申请号：US15220749
申请日：2016-07-27
Applicant: General Electric Company
Inventor： Chaitanya Ashok Baone , Herman Lucas Norbert Wiegman , Naresh Acharya
Abstract: A microgrid system includes one or more power generators configured to provide electrical energy. The microgrid system also includes a localized distribution network coupled to the one or more power generators, coupled to the one or more loads, and coupled to an external grid. The microgrid system further includes a microgrid controller configured to predict microgrid demand for the one or more loads for a predetermined period of time. The microgrid controller is also configured to receive demand information for the external grid for the predetermined period of time. The microgrid controller is further configured to determine an operation plan for the one or more power generators based on the predicted microgrid demand and the received demand information. Moreover, the microgrid controller is configured to determine a schedule to transmit electrical energy to the external grid based on the operation plan.
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公开(公告)号：US09979192B2
公开(公告)日：2018-05-22
申请号：US14445789
申请日：2014-07-29
Applicant: General Electric Company
Inventor： Miaolei Shao , Harjeet Johal , Jovan Z. Bebic , Naresh Acharya
CPC classification number: H02J3/12 , G05B15/02 , H02J3/00 , H02J3/382 , Y02E10/563 , Y02E10/763
Abstract: An electrical power system includes an electrical power distribution network and a control device configured to regulate at least one attribute of said electrical power system. The electrical power system further includes a processor coupled to the control device configured to identify an out-of-bound condition on said electrical power distribution network at a first time. The out-of-bound condition is associated with the at least one attribute. The processor is also configured to determine a trend for the at least one attribute at a second time that is later than the first time after a predetermined delay time elapses. The trend indicates a direction away from at least one of a predetermined range and a predetermined value. The processor is also configured to transmit a control action to said control device based at least in part on the trend.
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5.发明授权公开(公告)号：US09252633B2
公开(公告)日：2016-02-02
申请号：US13724928
申请日：2012-12-21
Applicant: General Electric Company
Inventor： Naresh Acharya , Jovan Z. Bebic , Harjeet Johal , Kathleen Ann O'Brien
CPC classification number: H02J13/001 , H02J2003/007 , Y02E60/76 , Y04S10/40 , Y04S40/22
Abstract: A system for accelerated assessment of operational uncertainties in an electrical power distribution system includes a plurality of utility assets, and a distribution analysis (“DA”) system. DA system includes a preparation module configured to identify a first network model and a reduced network model for the electrical power distribution system. DA system also includes an input module configured to identify a plurality of scenarios, and a reduced-model-analysis module configured to analyze the reduced network model using the plurality of scenarios, generating a first set of results, and to select a subset of scenarios based on the first set of results. DA system further includes a full-model-analysis module configured to analyze the first network model using the subset of scenarios, generating a second set of results. DA system also includes a command module configured to dispatch configuration commands to utility assets based on the second set of results.
Abstract translation: 一种用于加速评估配电系统中的运行不确定性的系统包括多个公用事业资产和分配分析（“DA”）系统。 DA系统包括准备模块，其被配置为识别用于配电系统的第一网络模型和减少的网络模型。 DA系统还包括被配置为识别多个场景的输入模块，以及被配置为使用所述多个场景分析所述减少的网络模型的生成第一组结果并且选择场景的子集的简化模型分析模块 基于第一组结果。 DA系统还包括全模型分析模块，其被配置为使用所述场景子集分析所述第一网络模型，生成第二组结果。 DA系统还包括一个命令模块，配置为基于第二组结果将配置命令分配给公用事业资产。
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Patent Agency Ranking
公开(公告)号：US20190033801A1
公开(公告)日：2019-01-31
申请号：US15660315
申请日：2017-07-26
Applicant: General Electric Company
Inventor： Chaitanya Ashok Baone , Khaled Yehia Bahei-Eldin , Yan Pan , Reza Ghaemi , Xing Wang , Naresh Acharya
Abstract: An optimization-based method and system is disclosed to enable heterogeneous loads and distributed energy resources (DERs) to participate in grid ancillary services, such as spinning and non-spinning reserves, and ramping reserves. The method includes receiving inputs for decision parameters for optimizing an objective for obtaining flexible reserve power, solving the objective for obtaining flexible reserve power, determining a reserve power schedule for a prediction horizon for providing flexible reserve power based on the objective, generating a service bid based on the reserve power schedule for the power grid; and when the service bid is accepted, providing flexible reserve power to the power grid based on the service bid.
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公开(公告)号：US20170322578A1
公开(公告)日：2017-11-09
申请号：US15220749
申请日：2016-07-27
Applicant: General Electric Company
Inventor： Chaitanya Ashok Baone , Herman Lucas Norbert Wiegman , Naresh Acharya
IPC: G05F1/66 , G05B19/042 , H02J4/00
Abstract: A microgrid system includes one or more power generators configured to provide electrical energy. The microgrid system also includes a localized distribution network coupled to the one or more power generators, coupled to the one or more loads, and coupled to an external grid. The microgrid system further includes a microgrid controller configured to predict microgrid demand for the one or more loads for a predetermined period of time. The microgrid controller is also configured to receive demand information for the external grid for the predetermined period of time. The microgrid controller is further configured to determine an operation plan for the one or more power generators based on the predicted microgrid demand and the received demand information. Moreover, the microgrid controller is configured to determine a schedule to transmit electrical energy to the external grid based on the operation plan.
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8.发明申请公开(公告)号：US20160313197A1
公开(公告)日：2016-10-27
申请号：US14697284
申请日：2015-04-27
Applicant: General Electric Company
Inventor： Naresh Acharya , Nilanjan Ray Chaudhuri , Chaitanya Ashok Baone
IPC: G01L3/00
CPC classification number: G01L3/00 , H02J3/24 , H02J2003/007 , H02P9/105 , Y02E60/728 , Y02E60/76 , Y04S10/265 , Y04S40/22
Abstract: A stability analysis system (SAS) for non-invasive estimation of damping torque associated with a power generator in an electric power network includes a processor in communication with a PMU associated with the generator. The processor is configured to receive a first data sample set from the PMU. The first data set is substantially representative of at least one measurement of the generator. The processor is also configured to determine an estimated torque of the generator based at least in part on the first data set. The processor is further configured to determine an estimated average torque and one or more estimated torque components based at least in part on the estimated torque. The processor is also configured to output the estimated average torque and the one or more estimated torque components to an operator for use in stability analysis of one or more of the generator and the network.
Abstract translation: 用于非侵入式估计与电力网络中的发电机相关联的阻尼扭矩的稳定性分析系统（SAS）包括与与所述发电机相关联的PMU通信的处理器。 处理器被配置为从PMU接收第一数据样本集。 第一数据集基本上代表发电机的至少一个测量。 处理器还被配置成至少部分地基于第一数据集来确定发电机的估计转矩。 处理器还被配置为至少部分地基于估计的扭矩来确定估计的平均扭矩和一个或多个估计的扭矩分量。 处理器还被配置为将估计的平均扭矩和一个或多个估计的扭矩分量输出到操作者以用于发电机和网络中的一个或多个的稳定性分析。
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公开(公告)号：US09081407B2
公开(公告)日：2015-07-14
申请号：US13723585
申请日：2012-12-21
Applicant: General Electric Company
Inventor： Johal Harjeet , Naresh Acharya , Kathleen Ann O'Brien , Xinhui Wu
Abstract: A method for regulating a power line voltage includes determining a slow voltage variation by filtering an actual voltage at terminals of the voltage regulation apparatus. A fast active power variation is determined by filtering a measured active power of the DG system; wherein a first frequency of the slow voltage variation is smaller than a second frequency of the fast active power variation. The voltage regulation apparatus settings are controlled based on the slow voltage variation and a reactive power output of the DG system is controlled based on fast active power variation.
Abstract translation: 用于调节电力线电压的方法包括通过对电压调节装置的端子处的实际电压进行滤波来确定慢电压变化。 通过过滤DG系统的测量有功功率来确定快速有功功率变化; 其中所述慢电压变化的第一频率小于所述快速有功功率变化的第二频率。 基于缓慢的电压变化来控制电压调节装置设置，并且基于快速有功功率变化来控制DG系统的无功功率输出。
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10.发明授权公开(公告)号：US11342748B2
公开(公告)日：2022-05-24
申请号：US17016370
申请日：2020-09-09
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Paul Joseph Datka , Hongbiao Song , John Douglas McDonald , Viswanath Kunapuli , Alfredo Sebastian Achilles , Naresh Acharya , Yingying Wang
Abstract: Systems and methods for improved anomaly detection for rotating machines. An example method may include determining that power generation is to be performed based on a voltage instead of a power factor; receiving a command voltage; receiving a measured voltage value from a first location in a power generation network; determining that the measured voltage value from the first location is less than the command voltage value; determining that a current value associated with a transmission line at the third location is less than a threshold current value; determining that a reactive power of a power generation component at a third location is less than a maximum reactive power of the component; and increasing, based on the determination that the reactive power of the component at the third location is less than a maximum reactive power of the component, the reactive power of the component.
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