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公开(公告)号:AU2018236760A1
公开(公告)日:2018-10-18
申请号:AU2018236760
申请日:2018-09-26
Applicant: GEN ELECTRIC
Inventor: NAGARKAR KAUSTUBH RAVINDRA , ASHE JEFFREY MICHAEL , HUBER WILLIAM HULLINGER , COUTURE AARON JUDY , ATALLA ASHRAF SAID
IPC: A61B5/05 , A61B5/00 , A61B5/021 , A61B5/024 , A61B5/0265 , A61B5/029 , A61B5/145 , G01F1/56 , G01R33/12 , H02K44/08
Abstract: A system and method for monitoring a subject are presented. The system includes a sensing device including at least one magnetic source to generate a magnetic field and an array of magnetic sensors disposed within the magnetic field. The sensor array obtains a plurality of magnetic field measurements at a plurality of locations along a vessel carrying a fluid including one or more magnetic particles. Further, the system includes a processing subsystem communicatively coupled to the sensing device, where the processing subsystem determines variations in the measurements caused by magnetization-relaxation of the magnetic particles based on a coupled model that defines behavior of the fluid in the varying magnetic field based on principles of magnetization-relaxation, bulk motion of the magnetic particles towards a determined gradient of the magnetic field, magnetostatics, and conservation of momentum. The processing subsystem estimates values of one or more desired parameters based on the determined variations.
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公开(公告)号:AU2018236760B2
公开(公告)日:2020-02-20
申请号:AU2018236760
申请日:2018-09-26
Applicant: GEN ELECTRIC
Inventor: NAGARKAR KAUSTUBH RAVINDRA , ASHE JEFFREY MICHAEL , HUBER WILLIAM HULLINGER , COUTURE AARON JUDY , ATALLA ASHRAF SAID
IPC: A61B5/05 , A61B5/00 , A61B5/021 , A61B5/024 , A61B5/0265 , A61B5/029 , A61B5/145 , G01F1/56 , G01R33/12 , H02K44/08
Abstract: A system and method for monitoring a subject are presented. The system includes a sensing device including at least one magnetic source to generate a magnetic field and an array of magnetic sensors disposed within the magnetic field. The sensor array obtains a plurality of magnetic field measurements at a plurality of locations along a vessel carrying a fluid including one or more magnetic particles. Further, the system includes a processing subsystem communicatively coupled to the sensing device, where the processing subsystem determines variations in the measurements caused by magnetization-relaxation of the magnetic particles based on a coupled model that defines behavior of the fluid in the varying magnetic field based on principles of magnetization-relaxation, bulk motion of the magnetic particles towards a determined gradient of the magnetic field, magnetostatics, and conservation of momentum. The processing subsystem estimates values of one or more desired parameters based on the determinedvariations.
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公开(公告)号:DE102015102329A1
公开(公告)日:2015-08-20
申请号:DE102015102329
申请日:2015-02-18
Applicant: GEN ELECTRIC
Inventor: RAKUFF STEFAN , SHAH MANOJ RAMPRASAD , GEMIN PAUL R , KRISHNAMOORTHY GANESH , ATALLA ASHRAF SAID
IPC: H01H33/18
Abstract: Es sind verschiedene Ausführungsformen eines Schutzschalters beschrieben, bei dem eine bewegbare Überbrückungsklemme als ein Teil des leitenden Pfads verwendet wird, wenn der Schutzschalter sich in einer geschlossenen Konfiguration befindet. Wenn der Stromkreis geöffnet wird, wird die Klemme von den beiden festen Kontakten, die ansonsten durch die Klemme überbrückt sind, weg verlagert. In einer derartigen Ausführungsform verwendet der Schutzschalter die elektromagnetischen Kräfte, die als Reaktion auf das Öffnungsereignis erzeugt werden, um den Stromkreis zu unterbrechen.
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公开(公告)号:ES2862169T3
公开(公告)日:2021-10-07
申请号:ES16757802
申请日:2016-08-18
Applicant: GEN ELECTRIC
Inventor: ZHOU RUI , GARCES LUIS JOSE , RAJU RAVISEKHAR NADIMPALLI , ATALLA ASHRAF SAID
Abstract: Un sistema colector de corriente continua de tensión media, MVDC, (202) para instalaciones de generación de energía renovable, comprendiendo dicho sistema colector de MVDC (202): un bus de MVDC (209); al menos un dispositivo de generación de energía renovable (200); al menos un convertidor de potencia de corriente continua, CC a CC, CC/CC, (208; 300; 500; 600) acoplado a dicho al menos un dispositivo de generación de energía renovable (200) y a dicho bus de MVDC (209), estando dicho al menos un convertidor de potencia CC/CC (208; 300; 500; 600) configurado para cambiar una operación de conmutación de dicho convertidor de potencia CC/CC (208; 300; 500; 600) entre una conversión de onda completa y conversión de onda media; y al menos un controlador (252) acoplado a dicho al menos un convertidor de potencia CC/CC (208; 300; 500; 600), estando dicho al menos un controlador configurado para regular el cambio de la operación de conmutación de dicho al menos un convertidor de potencia CC/CC (208; 300; 500; 600) entre una conversión de onda completa y conversión de onda media; en donde dicho al menos un convertidor de potencia CC/CC (208; 300; 500; 600) comprende una pluralidad de dispositivos de conmutación (302, 304, 306, 308; 512, 514, 516, 518), estando cada dispositivo de conmutación de dicha pluralidad de dispositivos de conmutación acoplado a dicho al menos un controlador (252), estando dicho al menos un controlador (252) configurado, además, para mantener al menos una primera porción de dicha pluralidad de dispositivos de conmutación (302, 304, 306, 308; 512, 514, 516, 518) en un estado APAGADO y una segunda porción de dicha pluralidad de dispositivos de conmutación (302, 304, 306, 308; 512, 514, 516, 518) en un estado ENCENDIDO para facilitar el cambio de la operación de conmutación de dicho al menos un convertidor de potencia CC/CC (208; 300; 500; 600) de una conversión de onda completa a conversión de onda media, estando dicho al menos un controlador (252) configurado, además, para: regular la frecuencia de conmutación de dicha pluralidad de dispositivos de conmutación (302, 304, 306, 308; 512, 514, 516, 518); recibir valores en tiempo real de la energía eléctrica transmitida a través de dicho al menos un convertidor de energía CC/CC (208; 300; 500; 600); regular la frecuencia de conmutación de dicha pluralidad de dispositivos de conmutación (302, 304, 306, 308; 512, 514, 516, 518) para regular la ganancia de tensión de dicho al menos un convertidor de potencia CC/CC (208; 300; 500; 600) en función de los valores en tiempo real de la energía eléctrica transmitida a través de dicho al menos un convertidor de potencia CC/CC (208; 300; 500; 600); cambiar la operación de conmutación de dicho al menos un convertidor de potencia CC/CC (208; 300; 500; 600) entre una conversión de onda completa y conversión de onda media en función de los valores en tiempo real de la energía eléctrica transmitida a través de dicho al menos un convertidor de potencia CC/CC (208; 300; 500; 600); y caracterizado por que dicho al menos un controlador (252) está configurado, además, para disminuir la frecuencia de conmutación de dicha pluralidad de dispositivos de conmutación (302, 304, 306, 308; 512, 514, 516, 518) para disminuir la ganancia de tensión de dicho al menos un convertidor de potencia CC/CC (208; 300; 500; 600) cuando se detecta una condición de falla de sobrecarga o una condición de falla de cortocircuito, facilitando así el aislamiento de dicho al menos un convertidor de potencia CC/CC (208; 300; 500; 600); y un diodo (210) se coloca entre el bus de MVDC (209) y dicho al menos un convertidor de potencia CC/CC (208; 300; 500; 600) para facilitar aún más el aislamiento de dicho al menos un convertidor de potencia CC/CC (208; 300; 500; 600) y para permitir solo un flujo de potencia unidireccional de dicho al menos un convertidor de potencia CC/CC (208; 300; 500; 600) en el bus de MVDC (209).
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公开(公告)号:AU2015361028A1
公开(公告)日:2017-06-15
申请号:AU2015361028
申请日:2015-12-01
Applicant: GEN ELECTRIC
Inventor: NAGARKAR KAUSTUBH RAVINDRA , ASHE JEFFREY MICHAEL , HUBER WILLIAM HULLINGER , COUTURE AARON JUDY , ATALLA ASHRAF SAID
IPC: A61B5/05 , A61B5/00 , A61B5/021 , A61B5/024 , A61B5/0265 , A61B5/029 , A61B5/145 , G01F1/56 , G01R33/12 , H02K44/08
Abstract: A system and method for monitoring a subject are presented. The system includes a sensing device including at least one magnetic source to generate a magnetic field and an array of magnetic sensors disposed within the magnetic field. The sensor array obtains a plurality of magnetic field measurements at a plurality of locations along a vessel carrying a fluid including one or more magnetic particles. Further, the system includes a processing subsystem communicatively coupled to the sensing device, where the processing subsystem determines variations in the measurements caused by magnetization-relaxation of the magnetic particles based on a coupled model that defines behavior of the fluid in the varying magnetic field based on principles of magnetization-relaxation, bulk motion of the magnetic particles towards a determined gradient of the magnetic field, magnetostatics, and conservation of momentum. The processing subsystem estimates values of one or more desired parameters based on the determined variations.
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公开(公告)号:CA2969533C
公开(公告)日:2020-05-26
申请号:CA2969533
申请日:2015-12-01
Applicant: GEN ELECTRIC
Inventor: NAGARKAR KAUSTUBH RAVINDRA , ASHE JEFFREY MICHAEL , HUBER WILLIAM HULLINGER , COUTURE AARON JUDY , ATALLA ASHRAF SAID
Abstract: A system and method for monitoring a subject are presented. The system includes a sensing device including at least one magnetic source to generate a magnetic field and an array of magnetic sensors disposed within the magnetic field. The sensor array obtains a plurality of magnetic field measurements at a plurality of locations along a vessel carrying a fluid including one or more magnetic particles. Further, the system includes a processing subsystem communicatively coupled to the sensing device, where the processing subsystem determines variations in the measurements caused by magnetization-relaxation of the magnetic particles based on a coupled model that defines behavior of the fluid in the varying magnetic field based on principles of magnetization-relaxation, bulk motion of the magnetic particles towards a determined gradient of the magnetic field, magnetostatics, and conservation of momentum. The processing subsystem estimates values of one or more desired parameters based on the determined variations.
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公开(公告)号:FR3043856A1
公开(公告)日:2017-05-19
申请号:FR1660776
申请日:2016-11-08
Applicant: GEN ELECTRIC
Inventor: ATALLA ASHRAF SAID , SHAH MANOJ RAMPRASAD , PRABHAKARAN SATISH , ALEXANDER JAMES PELLEGRINO
IPC: H02K3/28
Abstract: Une machine électrique (200) est proposée. La machine électrique comporte un stator, un rotor et une pluralité de commutateurs (260). Le stator comprend des enroulements principaux (210) et des enroulements auxiliaires (220). Le rotor est couplable à un générateur de force motrice conçu pour faire tourner le rotor par rapport au stator afin de générer au moins six phases de courant alternatif (c.a.) dans les enroulements principaux. La pluralité de commutateurs sont respectivement montés entre les enroulements auxiliaires et des groupes des enroulements principaux. La pluralité de commutateurs sont conçus pour convertir les au moins six phases en trois phases lorsque la pluralité de commutateurs sont fermés.
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公开(公告)号:CA2947363A1
公开(公告)日:2017-05-13
申请号:CA2947363
申请日:2016-11-03
Applicant: GEN ELECTRIC
Inventor: ATALLA ASHRAF SAID , SHAH MANOJ RAMPRASAD , PRABHAKARAN SATISH , ALEXANDER JAMES PELLEGRINO
Abstract: An electrical machine is provided. The electrical machine includes a stator, a rotor, and a plurality of switches. The stator includes main windings and auxiliary windings. The rotor is couplable to a prime mover configured to turn the rotor relative to the stator to generate at least six phases of alternating current (AC) power at the main windings. The plurality of switches is respectively coupled between the auxiliary windings and groups of the main windings. The plurality of switches is configured to convert the at least six phases to three phases when the plurality of switches is closed.
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公开(公告)号:CA2969533A1
公开(公告)日:2016-06-16
申请号:CA2969533
申请日:2015-12-01
Applicant: GEN ELECTRIC
Inventor: NAGARKAR KAUSTUBH RAVINDRA , ASHE JEFFREY MICHAEL , HUBER WILLIAM HULLINGER , COUTURE AARON JUDY , ATALLA ASHRAF SAID
Abstract: A system and method for monitoring a subject are presented. The system includes a sensing device including at least one magnetic source to generate a magnetic field and an array of magnetic sensors disposed within the magnetic field. The sensor array obtains a plurality of magnetic field measurements at a plurality of locations along a vessel carrying a fluid including one or more magnetic particles. Further, the system includes a processing subsystem communicatively coupled to the sensing device, where the processing subsystem determines variations in the measurements caused by magnetization-relaxation of the magnetic particles based on a coupled model that defines behavior of the fluid in the varying magnetic field based on principles of magnetization-relaxation, bulk motion of the magnetic particles towards a determined gradient of the magnetic field, magnetostatics, and conservation of momentum. The processing subsystem estimates values of one or more desired parameters based on the determined variations.
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