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21. 发明授权

US11110811B2 Thin haul hybrid electric propulsion system 有权
公开(公告)号：US11110811B2
公开(公告)日：2021-09-07
申请号：US16215073
申请日：2018-12-10
申请人： The Boeing Company
发明人： Lijun Gao , Shengyi Liu
IPC分类号： B60L53/24 , H02J4/00 , H02J7/14 , H02J7/02 , B64D27/24 , B64C13/50 , B64D27/02
摘要： A hybrid electric propulsion system may include an independent speed variable frequency (ISVF) generator coupled to an alternating current (AC) bus via a first switch. The system may further include a variable frequency independent speed (VFIS) motor coupled to the AC bus via a second switch, the system omitting circuitry to perform a full-power rated power conversion between the ISVF generator and the VFIS motor. The system may also include an alternating current direct current (AC/DC) converter coupled to the AC bus via a third switch. The system may include a battery coupled to the AC/DC converter.

22. 发明申请

US20190140570A1 COUNTER-FIELD WINDING IN ELECTRICAL GENERATOR 审中-公开
公开(公告)号：US20190140570A1
公开(公告)日：2019-05-09
申请号：US16208792
申请日：2018-12-04
申请人： THE BOEING COMPANY
发明人： Lijun Gao , Shengyi Liu
IPC分类号： H02P9/10 , H02P29/024
CPC分类号： H02P9/107 , H02K3/20 , H02K19/26 , H02P29/0241 , H02P2101/30
摘要： A main field circuit of an electrical generator and associated system and method are disclosed. The main field circuit comprises a main field winding configured to conduct a main field current, and a counter-field winding arranged proximate to the main field winding. The main field circuit further comprises a switch element configured to selectively couple at least a portion of the main field current into the counter-field winding to reduce a magnitude of the main field current. Coupling at least a portion of the main field current into the counter-field winding may be performed responsive to one or predefined conditions, such as a predefined load fault condition and enabling a predefined field weakening operation.

23. 发明授权

US09991719B2 Systems and methods for reducing circulating current and phase to phase imbalance in a parallel modular converter system 有权
公开(公告)号：US09991719B2
公开(公告)日：2018-06-05
申请号：US14570165
申请日：2014-12-15
申请人： The Boeing Company
发明人： Matthew J. Krolak , Lijun Gao , Shengyi Liu
IPC分类号： H02J7/35 , H02J50/50 , H02J4/00 , H02P29/00 , G05B19/042 , H02M7/493 , H02M7/5387 , H02M1/32 , H02M5/458
CPC分类号： H02J4/00 , G05B19/0421 , H02M1/32 , H02M5/4585 , H02M7/493 , H02M7/53873 , H02M2001/325 , H02P29/00
摘要： A system and method for providing power to a vehicle with reduced circulating current and phase-top-phase imbalance is disclosed. The system can include a plurality of parallel module converter for prioritizing and allocating each electrical load to one or more parallel modular converter modules. The system can also comprise a load balancer to ensure that differences in the properties (e.g., impedance) of the parallel modular converter modules do not create circulating currents or phase-to-phase imbalances. The load balancer can monitor the outputs to the plurality of parallel modular converter modules and modify the inputs to equalize, synchronize, or both the outputs.

24. 发明授权

US09647455B2 EMI filter systems and methods for parallel modular converters 有权
公开(公告)号：US09647455B2
公开(公告)日：2017-05-09
申请号：US14570145
申请日：2014-12-15
申请人： The Boeing Company
发明人： Lijun Gao , Shengyi Liu , Matthew J. Krolak
IPC分类号： H02P23/00 , H02J3/00 , H02J1/08
CPC分类号： H02J3/00 , H02J1/08
摘要： A system and method for providing power to a vehicle is disclosed. The system can include a plurality of parallel module converter for prioritizing and allocating each electrical load to one or more parallel module converter modules. The centralization of power distribution can enable the reduction of components. The system can enable fewer power controllers, filters, and other components to be used, saving weight and time. The system can enable the controllers, inverters, and filters, among other things, to be utilized at a higher level reducing unnecessary redundancy. The system can enable the use of a single input EMI filter, for example, reducing the number of filters in the system significantly. Methods for designing EMI filters for each electrical load are also disclosed.

25. 发明授权

US09449739B2 High power, high frequency power cable 有权
标题翻译：大功率，高频电力电缆
公开(公告)号：US09449739B2
公开(公告)日：2016-09-20
申请号：US13652959
申请日：2012-10-16
申请人： THE BOEING COMPANY
发明人： Lijun Gao , Shengyi Liu
IPC分类号： H01B7/42 , H01B9/04
CPC分类号： H01B7/428 , H01B9/04
摘要： The present disclosure provides a power cable apparatus that comprises an elongated thermal conductor, and an electrical conductor layer surrounding at least a portion of the elongated thermal conductor. In one or more embodiments, heat generated in the power cable is transferred via the elongated thermal conductor to at least one end of the power cable. In at least one embodiment, the apparatus further comprises an electric insulation layer surrounding at least a portion of the electrical conductor layer. In some embodiments, the apparatus further comprises a thermal insulation layer surrounding at least a portion of the electric insulation layer.
摘要翻译：本公开提供了一种电力电缆设备，其包括细长的热导体和围绕细长导热体的至少一部分的电导体层。在一个或多个实施例中，在电力电缆中产生的热量经由细长导热体传递到电力电缆的至少一端。在至少一个实施例中，该装置还包括围绕电导体层的至少一部分的电绝缘层。在一些实施例中，该装置还包括围绕电绝缘层的至少一部分的绝热层。

26. 发明申请

US20160094114A1 Synchronous Machine With Common Motor/Generator Exciter Stage 审中-公开
标题翻译：带有普通电机/发电机励磁机的同步电机
公开(公告)号：US20160094114A1
公开(公告)日：2016-03-31
申请号：US14498186
申请日：2014-09-26
申请人： The Boeing Company
发明人： Lijun Gao , Matthew J. Krolak , Shengyi Liu
IPC分类号： H02K19/38 , H02K3/28 , H02K15/06 , H02K11/04
CPC分类号： H02K19/38 , H02K3/28 , H02K11/0094 , H02K11/042 , H02K15/062 , H02K19/12 , H02K19/28 , H02P9/02 , H02P31/00 , H02P2103/20
摘要： A synchronous machine (100) has a frame (110), a shaft (115), a main section (120), and an exciter section (125). The main section (120) has a stator winding (130) which is mounted on the frame, and a rotor winding (135) which is mounted on the shaft. The exciter section has a transformer (140) and a rectifier (145). The transformer has a primary winding (140A) mounted on the frame and a secondary winding (140B) mounted on the shaft. The rectifier is mounted on the shaft and rectifies an output of the secondary winding to provide a rectified output to the rotor. A control unit (170) provides a high-frequency control signal to the primary winding. This signal is magnetically coupled to the secondary winding, rectified, and then applied to the rotor to control the operation of the synchronous machine.
摘要翻译：同步机100具有框架110，轴115，主体部120和激振部125。主部分（120）具有安装在框架上的定子绕组（130）和安装在轴上的转子绕组（135）。励磁部分具有变压器（140）和整流器（145）。变压器具有安装在框架上的初级绕组（140A）和安装在轴上的次级绕组（140B）。整流器安装在轴上并对次级绕组的输出进行整流，以向转子提供整流输出。控制单元（170）向初级绕组提供高频控制信号。该信号磁耦合到次级绕组，整流，然后施加到转子以控制同步电机的操作。

27. 发明申请

US20160094040A1 Systems and Methods For Reducing Circulating Current and Phase to Phase Imbalance In A Parallel Modular Converter System 有权
标题翻译：用于降低并联模块化转换器系统中的循环电流和相间不平衡的系统和方法
公开(公告)号：US20160094040A1
公开(公告)日：2016-03-31
申请号：US14570165
申请日：2014-12-15
申请人： The Boeing Company
发明人： Matthew J. Krolak , Lijun Gao , Shengyi Liu
IPC分类号： H02J4/00 , H02P29/00
CPC分类号： H02J4/00 , G05B19/0421 , H02M1/32 , H02M5/4585 , H02M7/493 , H02M7/53873 , H02M2001/325 , H02P29/00
摘要： A system and method for providing power to a vehicle with reduced circulating current and phase-top-phase imbalance is disclosed. The system can include a plurality of parallel module converter for prioritizing and allocating each electrical load to one or more parallel modular converter modules. The system can also comprise a load balancer to ensure that differences in the properties (e.g., impedance) of the parallel modular converter modules do not create circulating currents or phase-to-phase imbalances. The load balancer can monitor the outputs to the plurality of parallel modular converter modules and modify the inputs to equalize, synchronize, or both the outputs.
摘要翻译：公开了一种用于向具有降低的循环电流和相位不平衡的车辆提供电力的系统和方法。该系统可以包括多个并行模块转换器，用于将每个电负载优先排序并分配给一个或多个并行模块转换器模块。该系统还可以包括负载平衡器，以确保并行模块转换器模块的性质（例如，阻抗）的差异不会产生循环电流或相间不平衡。负载平衡器可以监视多个并行模块转换器模块的输出，并修改输入以均衡，同步或同时输出。

28. 发明授权

US09209741B2 Method and system for controlling synchronous machine as generator/starter 有权
标题翻译：控制同步电机作为发电机/起动机的方法和系统
公开(公告)号：US09209741B2
公开(公告)日：2015-12-08
申请号：US14187851
申请日：2014-02-24
申请人： The Boeing Company
发明人： Lijun Gao , Shengyi Liu , Matthew J. Krolak , Eugene V. Solodovnik , Kamiar J. Karimi
IPC分类号： F02N11/04 , H02K23/52 , H02P9/04 , H02P31/00 , H02P9/10
CPC分类号： H02P31/00 , F02C7/268 , F02N11/04 , F02N2011/0896 , H02P9/08 , H02P9/14 , H02P2101/30
摘要： A synchronous brushless machine having a single exciter field stator winding. The single exciter field stator winding is energized by a high frequency alternating current to provide a single excitation field to magnetically couple with the exciter field armature winding in both the starter mode and the generator mode. With a higher excitation frequency relative to the main armature current frequency, a steady main field voltage can be achieved which improves stability control while in the starter mode. In one or more configurations, the single exciter field stator winding is driven by a H-bridge converter.
摘要翻译：具有单个励磁场定子绕组的同步无刷电机。单个励磁场定子绕组由高频交流电通电，以在起动器模式和发电机模式下提供单个励磁场以与激励器励磁电枢绕组磁耦合。具有相对于主电枢电流频率的较高的激励频率，可以实现稳定的主场电压，其在起动器模式下提高稳定性控制。在一个或多个配置中，单个励磁场定子绕组由H桥转换器驱动。

29. 发明申请

US20150276881A1 MODEL-INDEPENDENT BATTERY LIFE AND PERFORMANCE FORECASTER 审中-公开
标题翻译：型号独立的电池寿命和性能预测
公开(公告)号：US20150276881A1
公开(公告)日：2015-10-01
申请号：US14224902
申请日：2014-03-25
申请人： The Boeing Company
发明人： Shengyi Liu , Lijun Gao
IPC分类号： G01R31/36 , H02J7/00
CPC分类号： G01R31/382 , G01R31/3648 , H02J7/0047 , H02J2007/0049 , H02J2007/005
摘要： A method includes determining parameters of a rechargeable battery during an effective power cycle of the rechargeable battery. The parameters include a current provided by the rechargeable battery, a voltage across the rechargeable battery, and a temperature of the rechargeable battery. The effective power cycle includes multiple charge operations and multiple discharge operations. The method includes estimating a remaining capacity of the rechargeable battery based on the current, the voltage, and the temperature. The method also includes generating an output indicating the remaining capacity.
摘要翻译：一种方法包括在可充电电池的有效功率循环期间确定可再充电电池的参数。这些参数包括由可再充电电池提供的电流，可再充电电池两端的电压以及可再充电电池的温度。有效功率循环包括多次充电操作和多次放电操作。该方法包括基于电流，电压和温度估计可再充电电池的剩余容量。该方法还包括产生指示剩余容量的输出。

30. 发明申请

US20150244303A1 Method and System for Controlling Synchronous Machine As Generator/Starter 有权
标题翻译：作为发电机/起动机控制同步电机的方法和系统
公开(公告)号：US20150244303A1
公开(公告)日：2015-08-27
申请号：US14187851
申请日：2014-02-24
申请人： The Boeing Company
发明人： Lijun Gao , Shengyi Liu , Matthew J. Krolak , Eugene V. Solodovnik , Kamiar J. Karimi
IPC分类号： H02P31/00 , F02N11/04
CPC分类号： H02P31/00 , F02C7/268 , F02N11/04 , F02N2011/0896 , H02P9/08 , H02P9/14 , H02P2101/30
摘要： A synchronous brushless machine having a single exciter field stator winding. The single exciter field stator winding is energized by a high frequency alternating current to provide a single excitation field to magnetically couple with the exciter field armature winding in both the starter mode and the generator mode. With a higher excitation frequency relative to the main armature current frequency, a steady main field voltage can be achieved which improves stability control while in the starter mode. In one or more configurations, the single exciter field stator winding is driven by a H-bridge converter.
摘要翻译：具有单个励磁场定子绕组的同步无刷电机。单个励磁场定子绕组由高频交流电通电，以在起动器模式和发电机模式下提供单个励磁场以与激励器励磁电枢绕组磁耦合。具有相对于主电枢电流频率的较高的激励频率，可以实现稳定的主场电压，其在起动器模式下提高稳定性控制。在一个或多个配置中，单个励磁场定子绕组由H桥转换器驱动。

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