公开(公告)号：US10291025B2

公开(公告)日：2019-05-14

申请号：US14693590

申请日：2015-04-22

Applicant: General Electric Company

Inventor： Chaitanya Ashok Baone ,  Naresh Acharya ,  Nilanjan Ray Chaudhuri

IPC: H02J3/10 ,  H02J3/24 ,  G05B15/02

Abstract: The embodiments described herein provide for a system including a processor. The processor is configured to select at least one grid system contingency from a plurality of grid system contingencies. The processor is further configured to derive one or more eigen-sensitivity values based on the at least on grid system contingency. The processor is also configured to derive one or more control actions at least partially based on the eigen-sensitivity values. The processor is additionally configured to apply the one or more control actions for generation re-dispatch of a grid system.

公开(公告)号：US20150105927A1

公开(公告)日：2015-04-16

申请号：US14055667

申请日：2013-10-16

Applicant: General Electric Company

Inventor： Chaitanya Ashok Baone ,  Nilanjan Ray Chaudhuri ,  Naresh Acharya

IPC: G05F1/66

CPC classification number: G05F1/66 ,  H02J3/24 ,  H02J2003/001 ,  H02J2003/007 ,  Y02E60/76 ,  Y04S40/22

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.

Abstract translation: 提供了一种基于计算机的电力传输系统中振荡稳定性应急分析方法。 该方法使用至少一个处理器。 该方法包括由至少一个处理器从电力传输系统内的多个系统部件接收多个部件输入。 该方法还包括产生电力传输系统的标称矩阵。 标称矩阵包括至少部分地模拟电力传输系统的方程组。 该方法还包括计算标称矩阵的特征值和特征向量。 该方法还包括识别表示电力传输系统的假定干扰的意外事件。 该方法还包括使用标称矩阵的特征值和特征向量估计偶然性的偶然特征值。

公开(公告)号：US11320794B2

公开(公告)日：2022-05-03

申请号：US16615972

申请日：2017-05-23

Applicant: General Electric Company

Inventor： Ara Panosyan ,  Sreedhar Desabhatla ,  Luca Parolini ,  Adolfo Anta Martinez ,  Naresh Acharya ,  Krishna Kumar Anaparthi ,  Scott William Szepek

IPC: G05B19/042 ,  H02J3/38 ,  H02J3/46

Abstract: An electric power system includes a generating unit, which includes a controller for controlling an operational mode of the generating unit. The electric power system also includes an event estimator communicatively coupled to the controller of the generating unit and a network estimator communicatively coupled to the event estimator. The network estimator includes a processor configured to receive status information associated with the electric power system, determine, based upon the status information, at least one characteristic of the electric power system, and transmit the at least one characteristic to the event estimator.

公开(公告)号：US09909940B2

公开(公告)日：2018-03-06

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 ,  H02J3/24 ,  H02P9/10 ,  H02J3/00

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.

公开(公告)号：US20160315471A1

公开(公告)日：2016-10-27

申请号：US14693590

申请日：2015-04-22

Applicant: General Electric Company

Inventor： Chaitanya Ashok Baone ,  Naresh Acharya ,  Nilanjan Ray Chaudhuri

IPC: H02J3/10 ,  G05B15/02

CPC classification number: H02J3/10 ,  G05B15/02 ,  H02J3/24

Abstract: The embodiments described herein provide for a system including a processor. The processor is configured to select at least one grid system contingency from a plurality of grid system contingencies. The processor is further configured to derive one or more eigen-sensitivity values based on the at least on grid system contingency. The processor is also configured to derive one or more control actions at least partially based on the eigen-sensitivity values. The processor is additionally configured to apply the one or more control actions for generation re-dispatch of a grid system.

Abstract translation: 这里描述的实施例提供了一种包括处理器的系统。 处理器被配置为从多个网格系统意外事件中选择至少一个网格系统意外事件。 所述处理器还被配置为基于所述至少一个网格系统意外事件来导出一个或多个特征敏感度值。 处理器还被配置为至少部分地基于特征敏感度值来导出一个或多个控制动作。 处理器另外配置为应用用于网格系统的生成重新分派的一个或多个控制动作。

公开(公告)号：US20160036229A1

公开(公告)日：2016-02-04

申请号：US14445789

申请日：2014-07-29

Applicant: General Electric Company

Inventor： Miaolei Shao ,  Harjeet Johal ,  Jovan Z. Bebic ,  Naresh Acharya

IPC: H02J3/12 ,  G05B15/02

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.

Abstract translation: 电力系统包括配电网络和被配置为调节所述电力系统的至少一个属性的控制装置。 电力系统还包括耦合到控制装置的处理器，其被配置为在第一时间在所述配电网上识别超出条件。 超出条件与至少一个属性相关联。 处理器还被配置为确定在经过预定延迟时间之后的第二时间的至少一个属性的趋势。 该趋势表示远离预定范围和预定值中的至少一个的方向。 处理器还被配置为至少部分地基于趋势向所述控制设备发送控制动作。

公开(公告)号：US20140176090A1

公开(公告)日：2014-06-26

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

IPC: G05F1/70

CPC classification number: G05F1/70 ,  H02J3/12 ,  H02J3/381

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。