公开(公告)号：US11686265B2

公开(公告)日：2023-06-27

申请号：US17647240

申请日：2022-01-06

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Ellery A. Blood ,  Scott M. Manson

IPC: F02D41/14 ,  F02B77/04 ,  F02B77/08 ,  F02D29/06

CPC classification number: F02D41/1467 ,  F02B77/04 ,  F02B77/083 ,  F02D29/06 ,  F02D2200/021 ,  F02D2200/0611 ,  F02D2200/10

Abstract: An intelligent electronic device (IED) may monitor wet stack residue buildup of a diesel engine. Once the wet stack residue accumulates to a certain amount, the IED may perform a mitigation procedure. Additionally, tracking wet stack residue buildup may allow an IED to attempt to prevent or reduce accumulation of the wet stack residue. The IED may track an operating power level of the diesel engine to estimate the rate of residue buildup.

公开(公告)号：US20230062817A1

公开(公告)日：2023-03-02

申请号：US17806319

申请日：2022-06-10

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Scott M. Manson ,  Jorge Fernando Calero ,  Angelos Kokkinis

IPC: H02H7/22 ,  H02H1/00

Abstract: Systems and methods are described herein to accommodate different settings associated with a converter-based electric power generator and an inverter-based electric power generator for electric power generation within an electric power delivery system. The electric power delivery system may provide electric power generated by a bulk electric system to the loads via distributed substations using a first operating frequency. Moreover, the distributed substations may include inverter-based electric power generators to supply the electric power demand of downstream loads in an islanded configuration. That said, the inverter-based electric power generators may supply the electric power using a second frequency that is higher than the first frequency. Protective systems, positioned downstream from the distributed substations, may use different settings associated with the bulk electric system or the inverter-based electric power generators based on detecting the frequency of the supplied electric power.

公开(公告)号：US20220344926A1

公开(公告)日：2022-10-27

申请号：US17811482

申请日：2022-07-08

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Scott M. Manson ,  Shankar V. Achanta ,  Gregary C. Zweigle ,  Richard M. Edge

IPC: H02H1/00 ,  G01R31/08 ,  G01R19/165 ,  G01P15/18 ,  H02H7/26 ,  G01B17/00 ,  G01R31/12

Abstract: The present disclosure relates to systems and methods of sag in a power line. In an embodiment, a monitoring device may include a distance sensor and an operating parameter sensor. A processor of the monitoring device may acquire, via the distance sensor, a first distance measurement. The processor may acquire, via the operating parameter sensor, a first operating parameter measurement. The processor may provide an output signal indicating that the power line is sagging when a combination of the first distance measurement and the first operating parameter measurement exceed a first combined distance-operating parameter threshold.

公开(公告)号：US11146193B2

公开(公告)日：2021-10-12

申请号：US17068414

申请日：2020-10-12

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Scott M. Manson ,  Ellery A. Blood ,  Gregary C. Zweigle

IPC: H02P9/10 ,  H02P9/04 ,  F02D31/00 ,  F02B63/04 ,  H02P101/25

Abstract: A device to control a genset engine may use multiple feedback loops to provide a fast stable response to load changes. An outer feedback loop may receive frequency measurements and power measurements of a genset engine and determine a dispatch adjustment comprising a frequency setpoint based on the frequency measurements and power measurements. A middle feedback loop may comprise a double deadband droop filter that periodically generates a pulse based on the frequency setpoint and the power measurements. The middle feedback loop may update an inner loop setpoint based on the pulse. An inner feedback loop may alter a target fuel valve reference of the genset engine based on the inner loop setpoint generated by the second controller and a fuel valve droop.

公开(公告)号：US20210203148A1

公开(公告)日：2021-07-01

申请号：US17199508

申请日：2021-03-12

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Scott M. Manson ,  Shankar V. Achanta ,  Gregary C. Zweigle ,  Richard M. Edge

IPC: H02H1/00 ,  G01R31/08 ,  G01R19/165 ,  G01P15/18 ,  H02H7/26 ,  G01B17/00 ,  G01R31/12

Abstract: The present disclosure relates to systems and methods of sag in a power line. In an embodiment, a monitoring device may include a distance sensor and an operating parameter sensor. A processor of the monitoring device may acquire, via the distance sensor, a first distance measurement. The processor may acquire, via the operating parameter sensor, a first operating parameter measurement. The processor may provide an output signal indicating that the power line is sagging when a combination of the first distance measurement and the first operating parameter measurement exceed a first combined distance-operating parameter threshold.

公开(公告)号：US20210131371A1

公开(公告)日：2021-05-06

申请号：US17147584

申请日：2021-01-13

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Ellery A. Blood ,  Scott M. Manson

IPC: F02D41/14 ,  F02B77/04 ,  F02B77/08

Abstract: An intelligent electronic device (IED) may monitor wet stack residue buildup of a diesel engine. Once the wet stack residue accumulates to a certain amount, the IED may perform a mitigation procedure. Additionally, tracking wet stack residue buildup may allow an IED to attempt to prevent or reduce accumulation of the wet stack residue. The IED may track an operating power level of the diesel engine to estimate the rate of residue buildup.

公开(公告)号：US20210111652A1

公开(公告)日：2021-04-15

申请号：US17066982

申请日：2020-10-09

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Edmund O. Schweitzer, III ,  Gregary C. Zweigle ,  Ellery A. Blood ,  Scott M. Manson

IPC: H02P9/42 ,  H03H17/02 ,  H02P9/10

Abstract: A controller may use energy packets to control a prime mover of a machine. The controller may include an energy packet measurement control to calculate energy packets and convert the energy packets into a fuel valve reference. Further, a frequency control may receive system feedback associated with the monitored machine and generate a frequency correction based on the system feedback. The controller may add the energy packet value and the frequency correction to determine a prime mover power reference and provide the prime mover power reference to a fuel valve control of the machine.

公开(公告)号：US10978863B2

公开(公告)日：2021-04-13

申请号：US16248359

申请日：2019-01-15

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Scott M. Manson ,  Shankar V. Achanta ,  Gregary C. Zweigle ,  Richard M. Edge

IPC: H02H1/00 ,  G01R31/08 ,  G01R19/165 ,  H02H7/26 ,  G01P15/18 ,  G01B17/00 ,  G01R31/12

Abstract: The present disclosure relates to systems and methods of sag in a power line. In an embodiment, a monitoring device may include a distance sensor and an operating parameter sensor. A processor of the monitoring device may acquire, via the distance sensor, a first distance measurement. The processor may acquire, via the operating parameter sensor, a first operating parameter measurement. The processor may provide an output signal indicating that the power line is sagging when a combination of the first distance measurement and the first operating parameter measurement exceed a first combined distance-operating parameter threshold.

公开(公告)号：US10920703B1

公开(公告)日：2021-02-16

申请号：US16600623

申请日：2019-10-14

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Ellery A. Blood ,  Scott M. Manson

IPC: F02D41/14 ,  F02B77/04 ,  F02B77/08

Abstract: An intelligent electronic device (IED) may monitor wet stack residue buildup of a diesel engine. Once the wet stack residue accumulates to a certain amount, the IED may perform a mitigation procedure. Additionally, tracking wet stack residue buildup may allow an IED to attempt to prevent or reduce accumulation of the wet stack residue. The IED may track an operating power level of the diesel engine to estimate the rate of residue buildup.

公开(公告)号：US10310480B2

公开(公告)日：2019-06-04

申请号：US14686643

申请日：2015-04-14

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Scott M. Manson

IPC: G05B15/02 ,  G05B19/05 ,  H02J3/14 ,  H02J13/00

Abstract: Detection of which generators are connected using a common, isolated sub-grid using information from intelligent electronic devices (IEDs) in communication with each generator is disclosed herein. Each IED receives rotor position information from a rotor position detection device of the generator. Each IED may then calculate rotor speed, information of the generator and transmit such information to a central IED. The central IED uses the rotor speed information to determine which generators are connected to a common, isolated sub-grid. The central IED may further use rotor position, rotor speed, and rate-of-change-of-speed information either calculated at the central IED or transmitted from the IEDs.