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：US09385533B2

公开(公告)日：2016-07-05

申请号：US13905415

申请日：2013-05-30

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Nilanjan Ray Chaudhuri

IPC: H02J3/24 ,  G05B13/02

CPC classification number: H02J3/24 ,  G05B13/021

Abstract: A system for damping power system oscillation includes a damping device controller for generating a damping control signal to compensate for a plurality of oscillation modes in the power system oscillations and a damping device to generate a damping signal based on a damping control signal. The damping device controller includes a plurality of outer closed loop paths each including an adaptive controller configured to determine an individual oscillation mode from at least one power system measurement signal. Each adaptive controller is further configured to generate an adaptive control signal to shift at least one open loop pole of an inner loop path related to the individual oscillation mode to a closed loop location.

Abstract translation: 一种用于阻尼电力系统振荡的系统包括：阻尼装置控制器，用于产生阻尼控制信号以补偿电力系统振荡中的多个振荡模式;以及阻尼装置，用于基于阻尼控制信号产生阻尼信号。 阻尼装置控制器包括多个外部闭环路径，每个外部闭环路径包括配置成从至少一个电力系统测量信号确定单个振荡模式的自适应控制器。 每个自适应控制器还被配置为产生自适应控制信号，以将与各个振荡模式相关的内环路径的至少一个开环极点移位到闭环位置。

公开(公告)号：US09306391B2

公开(公告)日：2016-04-05

申请号：US13842844

申请日：2013-03-15

Applicant: General Electric Company

Inventor： Nilanjan Ray Chaudhuri ,  Ranjan Kumar Gupta ,  Rajib Datta ,  Ravisekhar Nadimpalli Raju

IPC: H02J1/00 ,  H02J3/36 ,  H02J3/38 ,  H02J13/00

CPC classification number: H02J1/00 ,  H02J3/36 ,  H02J3/386 ,  H02J13/0086 ,  Y02E10/763 ,  Y02E40/72 ,  Y02E60/60 ,  Y04S10/123 ,  Y10T307/549

Abstract: A direct current (DC) transmission and distribution (T&D) system includes a plurality of DC-to-DC converter devices defining a plurality of isolatable portions of the DC T&D system. The DC T&D system also includes a DC T&D control system coupled to the DC-to-DC converter devices. The DC T&D control system includes a plurality of current sensors. At least one of the current sensors is positioned at one of the DC-to-DC converter devices. The current sensor is configured to transmit signals representative of a value of DC electric current transmission through the DC-to-DC converter device. The DC T&D control system also includes a plurality of processors. At least one processor is coupled to the current sensor and the DC-to-DC converter device. The processor is configured to regulate DC current transmission through the DC-to-DC converter device as a function of the value of DC current transmission through the DC-to-DC converter device.

Abstract translation: 直流（DC）传输和分配（T＆D）系统包括限定DC T＆D系统的多个可隔离部分的多个DC-DC转换器装置。 DC T＆D系统还包括耦合到DC-DC转换器设备的DC T＆D控制系统。 DC T＆D控制系统包括多个电流传感器。 至少一个电流传感器位于DC-DC转换器装置之一处。 电流传感器被配置为传送表示通过DC-DC转换器装置的DC电流传输的值的信号。 DC T＆D控制系统还包括多个处理器。 至少一个处理器耦合到电流传感器和DC-DC转换器装置。 处理器被配置为根据通过DC-DC转换器装置的DC电流传输的值来调节通过DC-DC转换器装置的DC电流传输。

公开(公告)号：US09239760B2

公开(公告)日：2016-01-19

申请号：US14062720

申请日：2013-10-24

Applicant: General Electric Company

Inventor： Chaitanya Ashok Baone ,  Nilanjan Ray Chaudhuri

IPC: G06F11/07 ,  G06F11/14 ,  G06Q50/06 ,  G06F11/36

CPC classification number: G06F11/1415 ,  G01D3/028 ,  G01D3/032 ,  G06Q50/06 ,  H02J2003/007 ,  Y02E60/76 ,  Y04S40/22

Abstract: In one aspect, a computer system for managing occurrences of data anomalies in a data stream is provided. The computer system includes a processor in communication with the data stream. The processor is programmed to receive a first data stream from a phasor measurement unit. The processor is also programmed to calculate at least one singular value associated with the first data stream. The processor is further programmed to detect a first data anomaly within the first data stream using the at least one singular value. The first data anomaly occurs during a first time segment. The processor is also programmed to indicate the first time segment as containing the first data anomaly.

Abstract translation: 在一个方面，提供了一种用于管理数据流中的数据异常的计算机系统。 计算机系统包括与数据流通信的处理器。 处理器被编程为从相量测量单元接收第一数据流。 处理器还被编程为计算与第一数据流相关联的至少一个奇异值。 处理器进一步被编程为使用至少一个奇异值来检测第一数据流内的第一数据异常。 第一个数据异常发生在第一个时间段。 处理器也被编程为将第一时间段指示为包含第一数据异常。

公开(公告)号：US20150256094A1

公开(公告)日：2015-09-10

申请号：US14201062

申请日：2014-03-07

Applicant: General Electric Company

Inventor： Nilanjan Ray Chaudhuri ,  Ranjan Kumar Gupta ,  Einar Vaughn Larsen

IPC: H02M5/458 ,  H02J3/36

CPC classification number: H02M5/4585 ,  H02J3/36 ,  H02M7/7575 ,  Y02E60/60

Abstract: A hybrid HVDC converter system includes a DC bus, at least one capacitor commutated converter (CCC) and at least one self-commutated converter (SCC) coupled in series through the DC bus. The CCC induces a first voltage on the DC buses, the SCC induces a second voltage on the DC bus, the first voltage and the second voltage are summed to define a total DC voltage. The method includes at least one of regulating the total DC voltage induced on the DC buses including regulating the first DC voltage through the CCC and regulating the second DC voltage through the SCC substantially simultaneously, regulating the total DC voltage induced on the DC bus including regulating the second DC voltage through the SCC, and regulating the total DC voltage induced on the DC bus including regulating the first DC voltage through the CCC.

Abstract translation: 混合HVDC转换器系统包括DC总线，至少一个电容整流转换器（CCC）和至少一个通过DC总线串联耦合的自整流转换器（SCC）。 CCC在DC总线上引入第一电压，SCC在DC总线上产生第二电压，将第一电压和第二电压相加以定义总直流电压。 该方法包括至少一个调节在直流总线上感应的总直流电压，包括通过CCC调节第一直流电压并且基本上同时调节通过SCC的第二直流电压，调节在直流总线上引起的总直流电压，包括调节 通过SCC的第二直流电压，并调节直流总线上感应的总直流电压，包括通过CCC调节第一直流电压。

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：US20140268926A1

公开(公告)日：2014-09-18

申请号：US13826583

申请日：2013-03-14

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Ranjan Kumar Gupta ,  Nilanjan Ray Chaudhuri ,  Luis Jose Garces ,  Rajib Datta

IPC: H02M5/44

CPC classification number: H02M5/44 ,  H02M1/126 ,  H02M1/15 ,  H02M7/7575 ,  H02M2001/0077 ,  Y02E60/60

Abstract: A high voltage direct current (HVDC) converter system includes a line commutated converter (LCC) configured to convert a plurality of AC voltages and currents to a regulated DC voltage of one of positive and negative polarity and a DC current transmitted in only one direction. The HVDC converter system also includes a buck converter configured to convert a plurality of AC voltages and currents to a regulated DC voltage of one of positive and negative polarity and a DC current transmitted in one of two directions. The LCC and the buck converter are coupled in parallel to an AC conduit and are coupled in series to a DC conduit. The HVDC converter system further includes a filtering device coupled in parallel to the buck converter through the AC conduit. The filtering device is configured to inject AC current having at least one harmonic frequency into the AC conduit.

Abstract translation: 高压直流（HVDC）转换器系统包括线路整流转换器（LCC），其被配置为将多个AC电压和电流转换成正极性和负极性之一的稳压DC电压以及仅在一个方向上传输的DC电流。 HVDC转换器系统还包括降压转换器，其被配置为将多个AC电压和电流转换成正极性和负极性之一的稳压DC电压以及沿两个方向之一传输的DC电流。 LCC和降压转换器并联耦合到AC导管并且串联耦合到DC导管。 HVDC转换器系统还包括通过AC导管并联耦合到降压转换器的滤波装置。 滤波装置被配置为将具有至少一个谐波频率的AC电流注入到AC导管中。