PROTECTION SYSTEM FOR AIRCRAFT ELECTRIC PROPULSION MOTOR AND MOTOR CONTROLLER

    公开(公告)号:EP3972114A1

    公开(公告)日:2022-03-23

    申请号:EP21195845.9

    申请日:2021-09-09

    IPC分类号: H02P3/22

    摘要: A method for protecting an electric propulsion system in response to occurrence of a fault. The method includes the step of activating short circuits in power switches of inverters in a motor controller to redirect current regenerated by a motor which is electrically coupled to the motor controller and mechanically coupled to a propeller. The method further includes feathering the propeller while the motor is regenerating current. The protection logic is designed to address different types of faults, including faults in the high-voltage direct-current bus, faults in the motor controller, and faults in the motor.

    APPARATUS AND METHODS FOR ARC DETECTION, FAULT ISOLATION, AND BATTERY SYSTEM RECONFIGURATION

    公开(公告)号:EP4138257A3

    公开(公告)日:2023-03-29

    申请号:EP22179428.2

    申请日:2022-06-16

    IPC分类号: H02J7/00 B64D27/24

    摘要: An apparatus and method for mitigating the abrupt release of energy due to a short circuit or other fault external to battery modules in a battery pack is disclosed. The battery pack comprises a plurality of series-connected battery modules. Each battery module includes a plurality of weakened fusible links (56a), which connect an associated plurality of parallel-connected cells (5) to a first or second busbar (46a, 46b), and a plurality of non-weakened fusible links (56), which connect an associated plurality of parallel-connected cells (5) to a third or fourth busbar (46a, 46b). In the event of a fault the shortened arcing time across the weakened fusible links prevents catastrophic damage to the battery. A photodetector detects the presence of an arc across the weakened fusible links, and an electronic load control unit closes a bypass switch to bypass the battery module if an arc is detected.

    PROTECTION SYSTEM FOR AIRCRAFT ELECTRIC PROPULSION MOTOR AND MOTOR CONTROLLER

    公开(公告)号:EP4106126A1

    公开(公告)日:2022-12-21

    申请号:EP22177682.6

    申请日:2022-06-07

    IPC分类号: H02H3/28 H02H3/33 H02H7/122

    摘要: Methods and apparatus for detecting and characterizing arc faults in an aerospace electric propulsion system and then coordinating the operation of various elements of the protection system to execute a fault-clearing sequence. In a currentbased method, the arc is detected and characterized based on differential readouts from current sensors. The difference between currents measured at two ends of a protection zone are compared to a difference threshold. In a power-based method, the arc is detected and characterized based on differential readouts from voltage and current sensors. The differential voltage and current readouts are used to compute the respective powers at two ends of a protection zone. The difference between the respective powers is integrated over a period of time and then the integrated difference is compared to a difference threshold. A differential protection trip mode is invoked when the difference threshold is exceeded.

    SYNERGETIC NOISE ABSORPTION AND ANTI-ICING FOR AIRCRAFTS
    5.
    发明公开
    SYNERGETIC NOISE ABSORPTION AND ANTI-ICING FOR AIRCRAFTS 审中-公开
    ENTEISUNGFÜRFLUGZEUGE的SYNERGISTISCHEGERÄUSCHABSORPTION

    公开(公告)号:EP3135587A1

    公开(公告)日:2017-03-01

    申请号:EP16176603.5

    申请日:2016-06-28

    IPC分类号: B64D15/12 B64D29/00 B64D33/02

    摘要: Systems and methods are provided for an inductive coil anti-icing and noise absorption system. In certain versions, the inductive coil anti-icing and noise absorption system may include an inductive coil and a skin. The inductive coil may generate electromagnetic fields and may electromagnetically couple with the skin. The skin, upon electromagnetically coupling with the inductive coil, may increase in temperature and the increase in temperature may melt or prevent the formation of ice on the skin. The skin or a portion of the skin may be porous and may allow incorporation of a sound absorbing liner. The sound absorbing liner may attenuate noise generated by the aircraft (e.g., noise generated by the aircraft engine). Certain versions may include a plurality of inductive coils and a plurality of skins.

    摘要翻译: 为感应线圈防冰和噪声吸收系统提供了系统和方法。 在某些版本中,感应线圈防冰和噪声吸收系统可以包括感应线圈和皮肤。 感应线圈可以产生电磁场并且可以与皮肤电磁耦合。 皮肤在与感应线圈电磁耦合时可能会升高温度,并且温度升高可能会熔化或防止皮肤上形成冰。 皮肤或皮肤的一部分可以是多孔的,并且可以允许结合吸音衬垫。 吸音衬垫可以衰减飞行器产生的噪音(例如飞机发动机产生的噪音)。 某些版本可以包括多个感应线圈和多个皮肤。

    APPARATUS AND METHODS FOR ARC DETECTION, FAULT ISOLATION, AND BATTERY SYSTEM RECONFIGURATION

    公开(公告)号:EP4138257A2

    公开(公告)日:2023-02-22

    申请号:EP22179428.2

    申请日:2022-06-16

    IPC分类号: H02J7/00 B64D27/24

    摘要: An apparatus and method for mitigating the abrupt release of energy due to a short circuit or other fault external to battery modules in a battery pack is disclosed. The battery pack comprises a plurality of series-connected battery modules. Each battery module includes a plurality of weakened fusible links (56a), which connect an associated plurality of parallel-connected cells (5) to a first or second busbar (46a, 46b), and a plurality of non-weakened fusible links (56), which connect an associated plurality of parallel-connected cells (5) to a third or fourth busbar (46a, 46b). In the event of a fault the shortened arcing time across the weakened fusible links prevents catastrophic damage to the battery. A photodetector detects the presence of an arc across the weakened fusible links, and an electronic load control unit closes a bypass switch to bypass the battery module if an arc is detected.

    DISBANDED CASCADED ARRAY FOR GENERATING AND MOVING PLASMA CLUSTERS FOR ACTIVE AIRFLOW CONTROL
    10.
    发明公开
    DISBANDED CASCADED ARRAY FOR GENERATING AND MOVING PLASMA CLUSTERS FOR ACTIVE AIRFLOW CONTROL 有权
    议决级联阵列产生和MOVING等离子簇为主动气流控制和程序

    公开(公告)号:EP2347637A1

    公开(公告)日:2011-07-27

    申请号:EP09761083.6

    申请日:2009-11-13

    IPC分类号: H05H1/24

    摘要: An array of electrodes (104) for selectively generating plasma is described herein. The array includes a first electrode (302A) disposed along a first dielectric (304A), and at least a second electrode (302B). A second electrode (302B) is sandwiched between the first dielectric (304A) and the second dielectric (304B). A power supply (802) provides electrical power to at least the first and second electrodes. In turn, a power supply controller controls the power supply (802), so as to regulate the electrical power supplied to at least the first and the second electrodes, and to cause the first and second electrodes to generate and move plasma to modify different airflow patterns.