公开(公告)号：US20130099582A1

公开(公告)日：2013-04-25

申请号：US13278824

申请日：2011-10-21

Applicant: Swakshar Ray ,  Amol Rajaram Kolwalkar

Inventor： Swakshar Ray ,  Amol Rajaram Kolwalkar

IPC: H02J3/24

CPC classification number: H02J3/24

Abstract: A method of damping power system oscillations includes obtaining an AC measurement signal from a power system location and determining oscillation frequency values in the AC measurement signal. A plurality of single signal components are extracted from the AC measurement signal by subtracting a plurality of processed measurement signals from the AC measurement signal and a damping signal is generated based on the plurality of single signal components. Each of the plurality of processed measurement signals are generated by time delaying the AC measurement signal with a time delay associated with each of the oscillation frequency values other than the oscillation frequency value of the single signal component to be extracted.

Abstract translation: 一种阻尼电力系统振荡的方法包括从电力系统位置获得AC测量信号并确定AC测量信号中的振荡频率值。 通过从AC测量信号中减去多个处理的测量信号，从AC测量信号中提取多个单个信号分量，并且基于多个单个信号分量产生阻尼信号。 多个处理的测量信号中的每一个是通过与除了要提取的单个信号分量的振荡频率值之外的每个振荡频率值相关联的时间延迟来延迟AC测量信号而产生的。

公开(公告)号：US09043040B2

公开(公告)日：2015-05-26

申请号：US13362235

申请日：2012-01-31

Applicant: Swakshar Ray ,  Mark Gerard Adamiak ,  Amol Rajaram Kolwalkar

Inventor： Swakshar Ray ,  Mark Gerard Adamiak ,  Amol Rajaram Kolwalkar

IPC: G05D11/00 ,  H02J3/24

CPC classification number: H02J3/24

Abstract: A method of damping power system oscillations include obtaining a time synchronized damping control signal from a remote location and determining a communication time delay in receiving the time synchronized damping control signal from the remote location. The time synchronized damping control signal is then modified based on a phase compensation factor and an amplitude compensation factor determined from the time delay. Finally, a damping signal is generated based on the modified time synchronized damping control signal.

Abstract translation: 一种阻尼电力系统振荡的方法包括从远程位置获得时间同步阻尼控制信号，并确定从远程位置接收时间同步阻尼控制信号的通信时间延迟。 然后，基于从时间延迟确定的相位补偿因子和幅度补偿因子来修改时间同步衰减控制信号。 最后，基于改进的时间同步阻尼控制信号产生阻尼信号。

公开(公告)号：US08710700B2

公开(公告)日：2014-04-29

申请号：US13367085

申请日：2012-02-06

Applicant: Bertil Berggren ,  Rajat Majumder ,  Swakshar Ray ,  Balarko Chaudhuri ,  Nilanjan Ray Chaudhuri

Inventor： Bertil Berggren ,  Rajat Majumder ,  Swakshar Ray ,  Balarko Chaudhuri ,  Nilanjan Ray Chaudhuri

IPC: H02J3/24

CPC classification number: H02J3/24 ,  Y02E60/728 ,  Y04S10/265

Abstract: A method, device and computer program product for providing improved control of power or voltage oscillation damping in a power transmission system. The device includes a magnitude obtaining element configured to obtain an instantaneous magnitude of a signal representing a deviating oscillation in at least one element of the power transmission system, a slope investigating element configured to determine the rate of change of the signal, and a first processing block including an integrating element configured to integrate the instantaneous magnitudes with an integrating factor that is based on the determined rate of change. The first processing block is further configured to form a phase compensation angle based on the integrated instantaneous magnitude for use in a damping control signal generating unit in order to provide power or voltage oscillation damping of the system.

Abstract translation: 一种用于在电力传输系统中提供对功率或电压振荡阻尼的改进的控制的方法，装置和计算机程序产品。 该装置包括幅度获得元件，其被配置为获得表示电力传输系统的至少一个元件中的偏离振荡的信号的瞬时幅度，配置成确定信号变化率的斜率调查元件，以及第一处理 块包括集成元件，其被配置为将瞬时幅度与基于确定的变化率的积分因子进行积分。 第一处理块还被配置为基于用于阻尼控制信号生成单元的积分瞬时幅度形成相位补偿角，以便提供系统的功率或电压振荡阻尼。

公开(公告)号：US20130138366A1

公开(公告)日：2013-05-30

申请号：US13307740

申请日：2011-11-30

Applicant: Pan Yan ,  Reigh Allen Walling ,  Amol Rajaram Kolwalkar ,  Michael Lewis Reichard ,  Wei Ren ,  Swakshar Ray

Inventor： Pan Yan ,  Reigh Allen Walling ,  Amol Rajaram Kolwalkar ,  Michael Lewis Reichard ,  Wei Ren ,  Swakshar Ray

IPC: G01R19/00 ,  G01R31/00

CPC classification number: H02H7/261 ,  G01R31/086 ,  H02H3/305 ,  Y04S10/522

Abstract: A system for distributing electrical current to a plurality of loads includes a first sensor coupled to an input of a protection zone for measuring a first current entering the protection zone, wherein the protection zone includes at least a portion of an electrical distribution feeder. The system also includes a second sensor coupled to an output of the protection zone for measuring a second current exiting the protection zone, and a processor coupled to the first sensor and to the second sensor. The processor is programmed to receive measurements representative of the first current and the second current, and calculate a reactive current differential of the protection zone based on the first current and the second current. The processor is also programmed to compare the reactive current differential with a fault threshold, and generate an error notification if the reactive current differential is greater than the fault threshold.

Abstract translation: 用于将电流分配到多个负载的系统包括耦合到保护区的输入的第一传感器，用于测量进入保护区的第一电流，其中保护区包括配电馈线的至少一部分。 该系统还包括耦合到保护区的输出的第二传感器，用于测量离开保护区的第二电流，以及耦合到第一传感器和第二传感器的处理器。 处理器被编程为接收表示第一电流和第二电流的测量值，并且基于第一电流和第二电流来计算保护区的无功电流差。 处理器也被编程为将无功电流差异与故障阈值进行比较，如果无功电流差大于故障阈值，则产生错误通知。

公开(公告)号：US09006933B2

公开(公告)日：2015-04-14

申请号：US13278824

申请日：2011-10-21

Applicant: Swakshar Ray ,  Amol Rajaram Kolwalkar

Inventor： Swakshar Ray ,  Amol Rajaram Kolwalkar

IPC: H02J3/24 ,  H02J1/02 ,  H02M1/12 ,  H02M1/14

CPC classification number: H02J3/24

Abstract: A method of damping power system oscillations includes obtaining an AC measurement signal from a power system location and determining oscillation frequency values in the AC measurement signal. A plurality of single signal components are extracted from the AC measurement signal by subtracting a plurality of processed measurement signals from the AC measurement signal and a damping signal is generated based on the plurality of single signal components. Each of the plurality of processed measurement signals are generated by time delaying the AC measurement signal with a time delay associated with each of the oscillation frequency values other than the oscillation frequency value of the single signal component to be extracted.

Abstract translation: 一种阻尼电力系统振荡的方法包括从电力系统位置获得AC测量信号并确定AC测量信号中的振荡频率值。 通过从AC测量信号中减去多个处理的测量信号，从AC测量信号中提取多个单个信号分量，并且基于多个单个信号分量产生阻尼信号。 多个处理的测量信号中的每一个是通过与除了要提取的单个信号分量的振荡频率值之外的每个振荡频率值相关联的时间延迟来延迟AC测量信号而产生的。

公开(公告)号：US08798800B2

公开(公告)日：2014-08-05

申请号：US13323432

申请日：2011-12-12

Applicant: Bertil Berggren ,  Petr Korba ,  Rajat Majumder ,  Swakshar Ray

Inventor： Bertil Berggren ,  Petr Korba ,  Rajat Majumder ,  Swakshar Ray

IPC: G05D3/12 ,  G05D5/00 ,  G05D9/00 ,  G05D11/00 ,  G05D17/00

CPC classification number: H02J3/24

Abstract: The invention provides improved control of a power transmission system having a first group of measurement units in a first geographical area providing a first set of phasors and a second group of measurement units in a second geographical area providing a second set of phasors, where the phasors in the sets are generated at the same instant in time. In this system the power control device includes a phasor aligning unit that time aligns the first and second sets of phasors and a control unit that compares each set of phasors with a corresponding phasor number threshold, determines that a first control condition is fulfilled if each phasor number threshold has been exceeded and enables the provision of a common signal if the first control condition is fulfilled. The common signal is based on the obtained phasors in the first and second sets.

Abstract translation: 本发明提供了一种具有在第一地理区域中提供第一组相量的第一组测量单元和第二组测量单元的功率传输系统的改进的控制，第二组测量单元提供第二组相量，其中相量 这些集合在同一时刻产生。 在该系统中，功率控制装置包括时间对准第一和第二组相量的相量对准单元以及将每组相量与相应的相量数阈值进行比较的控制单元，如果每个相量确定第一个控制条件满足 已经超过了数字阈值，并且如果满足第一控制条件，则能够提供公共信号。 公共信号基于第一和第二组中获得的相量。

公开(公告)号：US20130197705A1

公开(公告)日：2013-08-01

申请号：US13362235

申请日：2012-01-31

Applicant: Swakshar Ray ,  Mark Gerard Adamiak ,  Amol Rajaram Kolwalkar

Inventor： Swakshar Ray ,  Mark Gerard Adamiak ,  Amol Rajaram Kolwalkar

IPC: G05F5/00

CPC classification number: H02J3/24

Abstract: A method of damping power system oscillations include obtaining a time synchronized damping control signal from a remote location and determining a communication time delay in receiving the time synchronized damping control signal from the remote location. The time synchronized damping control signal is then modified based on a phase compensation factor and an amplitude compensation factor determined from the time delay. Finally, a damping signal is generated based on the modified time synchronized damping control signal.

Abstract translation: 一种阻尼电力系统振荡的方法包括从远程位置获得时间同步阻尼控制信号，并确定从远程位置接收时间同步阻尼控制信号的通信时间延迟。 然后，基于从时间延迟确定的相位补偿因子和幅度补偿因子来修改时间同步衰减控制信号。 最后，基于改进的时间同步阻尼控制信号产生阻尼信号。

公开(公告)号：US09178350B2

公开(公告)日：2015-11-03

申请号：US13307740

申请日：2011-11-30

Applicant: Pan Yan ,  Reigh Allen Walling ,  Amol Rajaram Kolwalkar ,  Michael Lewis Reichard ,  Wei Ren ,  Swakshar Ray

Inventor： Pan Yan ,  Reigh Allen Walling ,  Amol Rajaram Kolwalkar ,  Michael Lewis Reichard ,  Wei Ren ,  Swakshar Ray

IPC: G01R31/00 ,  H02H7/26 ,  H02H3/30 ,  G01R31/08

CPC classification number: H02H7/261 ,  G01R31/086 ,  H02H3/305 ,  Y04S10/522

Abstract: A system for distributing electrical current to a plurality of loads includes a first sensor coupled to an input of a protection zone for measuring a first current entering the protection zone, wherein the protection zone includes at least a portion of an electrical distribution feeder. The system also includes a second sensor coupled to an output of the protection zone for measuring a second current exiting the protection zone, and a processor coupled to the first sensor and to the second sensor. The processor is programmed to receive measurements representative of the first current and the second current, and calculate a reactive current differential of the protection zone based on the first current and the second current. The processor is also programmed to compare the reactive current differential with a fault threshold, and generate an error notification if the reactive current differential is greater than the fault threshold.

Abstract translation: 用于将电流分配到多个负载的系统包括耦合到保护区的输入的第一传感器，用于测量进入保护区的第一电流，其中保护区包括配电馈线的至少一部分。 该系统还包括耦合到保护区的输出的第二传感器，用于测量离开保护区的第二电流，以及耦合到第一传感器和第二传感器的处理器。 处理器被编程为接收表示第一电流和第二电流的测量值，并且基于第一电流和第二电流来计算保护区的无功电流差。 处理器也被编程为将无功电流差异与故障阈值进行比较，如果无功电流差大于故障阈值，则产生错误通知。

公开(公告)号：US08908343B2

公开(公告)日：2014-12-09

申请号：US13285886

申请日：2011-10-31

Applicant: Yan Pan ,  Wei Ren ,  Swakshar Ray ,  Michael Reichard ,  Amol Rajaram Kolwalkar ,  Reigh Allen Walling

Inventor： Yan Pan ,  Wei Ren ,  Swakshar Ray ,  Michael Reichard ,  Amol Rajaram Kolwalkar ,  Reigh Allen Walling

IPC: H02H3/00 ,  H02H3/30 ,  H02H3/08 ,  H02H9/02

CPC classification number: H02H3/305

Abstract: An electric distribution system includes at least one feeder and a protection and control system. The feeder includes at least one segment including a first end and an opposing second end. The protection and control system includes a protective device and an electric current measuring device coupled to the segment proximate each end. The system further includes at least one processor coupled in communication with the electric current measuring devices. The at least one processor is programmed to determine a difference between a synchronized first electric current measured proximate the first end and a synchronized second electric current measured proximate the opposing second end and determine a switching condition of the protective devices as a function of the difference between the synchronized first and second electric currents.

Abstract translation: 配电系统包括至少一个进料器和保护和控制系统。 馈送器包括至少一个包括第一端和相对的第二端的段。 保护和控制系统包括一个保护装置和一个电流测量装置，该装置与靠近每一端的部分相连。 该系统还包括与电流测量装置通信的至少一个处理器。 所述至少一个处理器被编程以确定在第一端附近测量的同步的第一电流与在相对的第二端附近测量的同步的第二电流之间的差异，并且确定保护装置的开关状态作为 同步的第一和第二电流。

公开(公告)号：US20130107407A1

公开(公告)日：2013-05-02

申请号：US13285886

申请日：2011-10-31

Applicant: Yan Pan ,  Wei Ren ,  Swakshar Ray ,  Michael Reichard ,  Amol Rajaram Kolwalkar ,  Reigh Allen Walling

Inventor： Yan Pan ,  Wei Ren ,  Swakshar Ray ,  Michael Reichard ,  Amol Rajaram Kolwalkar ,  Reigh Allen Walling

IPC: H02H3/00

CPC classification number: H02H3/305

Abstract: An electric distribution system includes at least one feeder and a protection and control system. The feeder includes at least one segment including a first end and an opposing second end. The protection and control system includes a protective device and an electric current measuring device coupled to the segment proximate each end. The system further includes at least one processor coupled in communication with the electric current measuring devices. The at least one processor is programmed to determine a difference between a synchronized first electric current measured proximate the first end and a synchronized second electric current measured proximate the opposing second end and determine a switching condition of the protective devices as a function of the difference between the synchronized first and second electric currents.

Abstract translation: 配电系统包括至少一个进料器和保护和控制系统。 馈送器包括至少一个包括第一端和相对的第二端的段。 保护和控制系统包括一个保护装置和一个电流测量装置，该装置与靠近每一端的部分相连。 该系统还包括与电流测量装置通信的至少一个处理器。 所述至少一个处理器被编程以确定在第一端附近测量的同步的第一电流与在相对的第二端附近测量的同步的第二电流之间的差异，并且确定保护装置的开关状态作为 同步的第一和第二电流。