公开(公告)号：EP3905514A1

公开(公告)日：2021-11-03

申请号：EP21180554.4

申请日：2017-08-10

申请人： GE Aviation Systems LLC

发明人： WANG, Kaiyu ,  GEMIN, Paul ,  WOODBURN, David

IPC分类号： H02P23/04 ,  H02P9/00 ,  H02P9/10

摘要： A damping system can include a sensor disposed to measure an amplitude of a speed ripple of a drive shaft of a generator, and can include a feedforward circuit connected to the sensor and to the generator. The feedforward circuit can determine a phase angle formed by a load resistance and a load capacitance driven by the generator, calculate a voltage signal value based on the amplitude and the phase angle, and can adjust a DC link voltage provided by the generator and across the load resistance according to the voltage signal value.

公开(公告)号：EP3961867A1

公开(公告)日：2022-03-02

申请号：EP21190906.4

申请日：2021-08-11

申请人： GE Aviation Systems LLC

发明人： FREELY, Brendan ,  OSAMA, Mohamed ,  ISAZA, Fabian ,  PIAZZA GALARZA, Pablo Gabriel ,  GEMIN, Paul ,  YAGIELSKI, John ,  DAME, Mark ,  ZHANG, Wei ,  YOUNSI, Karim

IPC分类号： H02K3/22 ,  H02K9/19

摘要： An electric machine (100) having an electrically insulative manifold (200) is disclosed. In one example aspect, an electric machine (100) includes a non-electrically conductive manifold (200). The manifold (200) defines a chamber (220) operable to receive a cooling fluid. The electric machine (100) includes a prime winding (120) in fluid communication with the chamber (220) and one or more secondary windings (122) in electrical communication with the prime winding (120) and in fluid communication with the chamber (220). Further, the electric machine (100) includes an electric machine terminal (250) extending through the non-electrically conductive manifold (200) and coupled with the prime winding (120). The electric machine terminal (250) can provide or collect cooling fluid from the chamber (220) of the manifold (200) and can act as the electrical connection point for directing electrical power to or from the windings (120) of the electric machine (100). The non-electrically conductive manifold (200) electrically decouples the windings (120) of the electric machine (100) despite each winding receiving cooling fluid provided or collected at the manifold (200).

公开(公告)号：EP4254774A3

公开(公告)日：2023-12-13

申请号：EP23185272.4

申请日：2017-08-10

申请人： GE Aviation Systems LLC

发明人： WANG, Kaiyu ,  GEMIN, Paul ,  WOODBURN, David

IPC分类号： H02P9/00 ,  H02P9/10 ,  H02P23/04

摘要： A damping system can include a sensor disposed to measure an amplitude of a speed ripple of a drive shaft of a generator, and can include a feedforward circuit connected to the sensor and to the generator. The feedforward circuit can determine a phase angle formed by a load resistance and a load capacitance driven by the generator, calculate a voltage signal value based on the amplitude and the phase angle, and can adjust a DC link voltage provided by the generator and across the load resistance according to the voltage signal value.

公开(公告)号：EP4254774A2

公开(公告)日：2023-10-04

申请号：EP23185272.4

申请日：2017-08-10

申请人： GE Aviation Systems LLC

发明人： WANG, Kaiyu ,  GEMIN, Paul ,  WOODBURN, David

IPC分类号： H02P9/10

摘要： A damping system can include a sensor disposed to measure an amplitude of a speed ripple of a drive shaft of a generator, and can include a feedforward circuit connected to the sensor and to the generator. The feedforward circuit can determine a phase angle formed by a load resistance and a load capacitance driven by the generator, calculate a voltage signal value based on the amplitude and the phase angle, and can adjust a DC link voltage provided by the generator and across the load resistance according to the voltage signal value.