-
11.发明授权公开(公告)号：US11567109B2
公开(公告)日：2023-01-31
申请号：US16775649
申请日：2020-01-29
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Jeremy William Blair , Raymond W. Rice
Abstract: Systems, methods, and devices are provided to control an electrical component of an electric power distribution system with an intelligent electronic device using electrical measurements from a wireless electrical measurement device located away from the electrical component. One such system includes a capacitor bank on a lateral of an electric power distribution system, a first set of one or more wireless electrical measurement devices that obtain one or more electrical measurements of a first feeder of the electric power distribution system, and a capacitor bank controller. The capacitor bank controller may use the one or more electrical measurements of the first feeder to control the capacitor bank on the lateral.
-
公开(公告)号：US11105834B2
公开(公告)日：2021-08-31
申请号：US16576302
申请日：2019-09-19
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： James Mobley , Raymond W. Rice
Abstract: The present disclosure pertains to a line-powered current measurement system to mount to an electrical conductor and related methods. In one embodiment, a system may comprise a current transformer to electrically couple to an electrical conductor and to generate a secondary current proportional to a primary current in the conductor. A power harvesting subsystem may harvest power from the secondary current in a first configuration. A switching subsystem may transition the line-powered current measurement device between the first configuration and a second configuration, in which a current measurement subsystem generates a measurement of the secondary current. The switching subsystem may provide the secondary current to the power harvesting subsystem in the first configuration and may bypasses the power harvesting subsystem in the second configuration. A communication subsystem may transmit the measurement of the secondary current to a receiver device.
-
公开(公告)号：US10962608B1
公开(公告)日：2021-03-30
申请号：US16688168
申请日：2019-11-19
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Normann Fischer , Raymond W. Rice , Ravindra P. Mulpuri , James Mobley
IPC: G01R31/50 , G01R31/62 , G01R31/3185
Abstract: The present disclosure pertains to systems and methods for monitoring and protecting an electric power system. In one embodiment, a system may comprise line-mounted wireless current transformers to measure at least one parameter of an alternating current (AC), receive a synchronization signal at which to measure the AC, and send a message comprising the measured AC. The system may also comprise an intelligent electronic device (IED) to send the synchronization signal to and receive the messages from the line-mount wireless current transformers, determine whether a high-impedance fault (HiZ) exists between the line-mounted wireless current transformers, and implement a control action based on the existence of the HiZ fault.
-
公开(公告)号：US20150312023A1
公开(公告)日：2015-10-29
申请号：US14264394
申请日：2014-04-29
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Raymond W. Rice , Srinivas Achanta
IPC: H04L7/00
CPC classification number: H04L7/0041 , H04J3/0635 , H04J3/0682
Abstract: Disclosed herein are a variety of systems and methods for correcting for propagation delay in time signals used in connection with an electric power generation and delivery system. According to various embodiments, a device consistent with the present disclosure may determine an estimated propagation delay between an accurate time source and a receiving device. The propagation delay may be determined based on a variety of transmission parameters including, for example, communication channel type and/or length. A corrected time signal may be generated by advancing a reference incitation such as an “on-time” reference and/or “start-of-second” reference included in the time signal by an amount associated with the propagation delay. The corrected time signal may then be transmitted to the receiving device.
Abstract translation: 这里公开了用于校正与发电和输送系统相关联的时间信号中的传播延迟的各种系统和方法。 根据各种实施例，与本公开一致的设备可以确定精确时间源和接收设备之间的估计的传播延迟。 可以基于包括例如通信信道类型和/或长度的各种传输参数来确定传播延迟。 可以通过将包括在时间信号中的诸如“准时”参考和/或“起始”参考的参考煽动与传播延迟相关联的量来产生校正的时间信号。 然后可以将校正的时间信号发送到接收装置。
-
公开(公告)号：US11067617B2
公开(公告)日：2021-07-20
申请号：US16583660
申请日：2019-09-26
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Edmund O. Schweitzer, III , Raymond W. Rice
Abstract: A line-mounted device is used to provide power system signals to a device for detecting a fault and calculating a fault location using a traveling wave launched thereby. Current at the line-mounted device is used to separate incident and reflected traveling waves at a terminal. Times and polarities of traveling waves passing the line-mounted device and the terminal are compared to determine if the fault is located between the terminal and line-mounted device or at a location beyond the terminal or line-mounted device. Voltage of the traveling wave may be calculated using currents from the line-mounted device.
-
Patent Agency Ranking
公开(公告)号：US11031812B1
公开(公告)日：2021-06-08
申请号：US17144283
申请日：2021-01-08
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Edmund O. Schweitzer, III , Joe Baylon , Timothy M. Minteer , David Kenny , James Mobley , Johnny J. Moore , Raymond W. Rice , Naiden K. Spasov , Eric M. Sawyer
Abstract: The present disclosure relates to powering distributed sensors used to monitor electrical and/or environmental conditions and to powering other equipment associated with electric power systems. In one embodiment, a system may be used to mount a sensor in proximity to a reference conductor. An electric field power conversion subsystem may generate a usable electric potential from an electric field created by the electric power system and existing between the reference conductor and another conductor (e.g., another phase conductor, a ground conductor). The sensor powered by the usable electric potential may provide a measurement of a condition associated with the electric power system. A communication subsystem powered by the usable electric potential may communicate the measurement of the condition to a monitoring system.
-
公开(公告)号：US20210102985A1
公开(公告)日：2021-04-08
申请号：US16592169
申请日：2019-10-03
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Kei Hao , Shankar V. Achanta , Raymond W. Rice
Abstract: The present disclosure relates to a wireless neutral current sensor (WNCS) for monitoring a neutral cable of a capacitor bank. The WNCS may include a power storage device that provides power to allow the WNCS to send a test signal to a capacitor bank controller (CBC) of the capacitor bank to confirm operation of the WNCS during commissioning. The WNCS may include processing and communication circuitry that, during operation, detects an electrical characteristic on the neutral cable. The processing and communication circuitry may provide a message indicating the electrical characteristic to the CBC.
-
公开(公告)号：US20210055333A1
公开(公告)日：2021-02-25
申请号：US16549741
申请日：2019-08-23
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： James Mobley , Raymond W. Rice
Abstract: The present disclosure pertains to systems and methods for retrofitting data collection systems in an electrical power system. In one embodiment, a retrofit system includes a wireless current sensor. The wireless current sensor includes a current monitoring subsystem to generate a digitized representation of a current measurement of an alternating current signal in an electrical conductor, a power harvesting subsystem to harvest power from the electrical conductor, and a first wireless communication subsystem to transmit the digitized representation of the current measurement. An analog-to-digital converter includes at least one analog input in electrical communication with a voltage signal associated with the electrical conductor and a digital output to generate a digitized representation of the voltage signal. An intelligent electronic device in communication with a second wireless communication subsystem and the ADC may provide the digitized representations to a main processor.
-
公开(公告)号：US20210055332A1
公开(公告)日：2021-02-25
申请号：US16549774
申请日：2019-08-23
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Raymond W. Rice , Benjamin T. Rowland , James Mobley , Shankar V. Achanta
IPC: G01R19/15 , G01R19/155
Abstract: The present disclosure pertains to systems and methods for measuring electrical parameters in an electric power system. In one embodiment, a system may include a line-mounted wireless current sensor comprising a current monitoring subsystem to generate a current measurement of an alternating current flow through an electrical conductor. The line-mounted wireless current sensor may harvest power from the electrical conductor. A processing subsystem may generate a message comprising the current measurement, and the message may be transmitted at a synchronization point using a wireless communication subsystem. An intelligent electronic device (IED) may receive the message. The IED may further generate a voltage and generate a phasor based on the current measurement and the voltage measurement. A control action subsystem may implement a control action (e.g., selectively connecting or disconnecting a capacitor bank) based on the phasor.
-
公开(公告)号：US10659168B2
公开(公告)日：2020-05-19
申请号：US15683438
申请日：2017-08-22
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： David M. Rector , Raymond W. Rice , Steven Watts , Vince B. Hadley
IPC: G02F1/035 , G02F1/295 , G02B6/12 , H04B10/50 , H04B10/69 , H04B10/40 , H04B10/079 , H04B10/43 , H04B10/564 , H04J14/02
Abstract: The present disclosure pertains to systems and methods for low-power optical transceivers. In one embodiment, a low-power optical transceiver may include a microcontroller and an optical receiver and an optical transmitter in communication with and controlled by the microcontroller. The optical receiver may include a photodetector configured to receive a first optical representation of a first signal to be received and to generate an electrical representation of the first signal. An amplifier may amplify the electrical representation of the first signal, and an output in electrical communication with the amplifier may generate an electrical output. The optical transmitter may include a laser diode configured to generate a second optical representation of a second signal to be transmitted. The microcontroller may be configured to control an output power of the laser diode.
-
-
-
-
-
-
-
-
-
Search Results
29
records
(took 0.016 seconds)
