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11. 发明申请

WO2008128474A1 CLUTCHLESS TRANSMISSION APPARATUS FOR CONTROLLING GEAR-POSITION SHIFTING AND CONTROL METHOD THEREOF 审中-公开
标题翻译：用于控制齿轮位移的无切换传动装置及其控制方法
公开(公告)号：WO2008128474A1
公开(公告)日：2008-10-30
申请号：PCT/CN2008/070752
申请日：2008-04-18
申请人： BYD COMPANY LIMITED , XU, Xunjin , LIU, Kai , GONG, Jian , ZHOU, Xuguang , ZU, Bo , YANG, Guangming , QI, Axi , TANG, Xiaohua , ZHOU, Bo
发明人： LIU, Kai , GONG, Jian , ZHOU, Xuguang , ZU, Bo , YANG, Guangming , QI, Axi , TANG, Xiaohua , ZHOU, Bo
IPC分类号： B60W10/08 , B60W10/10 , F16H59/46
CPC分类号： B60W10/06 , B60W10/11 , B60W30/19 , B60W2510/1015 , B60W2710/0644 , B60W2710/0666 , F16H59/46 , F16H61/0403 , F16H63/502 , F16H2306/44 , F16H2306/46 , F16H2306/48 , F16H2306/50 , Y10T477/677
摘要： A clutchless transmission apparatus and control method thereof. The transmission apparatus comprises a motor(10) and a transmission(20), said motor(10) is connected to said transmission(20) and supplies power to said transmission(20) via an input shaft of the transmission(20), wherein said apparatus further comprises a control device(30), which is electrically connected to said motor(10) and said transmission(20), wherein said control device(30) is configured to determine whether a gear-position shifting is required based on rotation speed of said transmission(20), if a gear-position shifting is required, regulates torque of said motor(10) to control said transmission(20) to disengage, and then regulates the rotation speed of said motor(10) based on the rotation speed of said transmission(20) to control said transmission(20) to engage for shifting gear-position. The clutchless transmission apparatus provided in the present invention doesn't need a clutch during gear-position shifting, and therefore it is light, simple, easy to maintain and control, and can be used in a wide range of application.
摘要翻译：一种无离合器传动装置及其控制方法。传动装置包括马达（10）和变速器（20），所述马达（10）连接到所述变速器（20），并通过变速器（20）的输入轴向所述变速器（20）供电，其中所述设备还包括电连接到所述电动机（10）和所述变速器（20）的控制装置（30），其中所述控制装置（30）构造成基于旋转来确定是否需要换档位置换档所述变速器（20）的速度，如果需要换档位置，则调节所述电动机（10）的扭矩以控制所述变速器（20）脱离，然后基于所述变速器（10）的转速来调节所述变速器所述变速器（20）的转速控制所述变速器（20）啮合以便换挡位置。本发明中提供的无离合器传动装置在档位移动期间不需要离合器，因此它轻巧，简单，易于维护和控制，并且可以在广泛的应用中使用。

12. 发明申请

WO2020146999A1 PV POWER CONVERTER AND CONTROL METHOD AND PV POWER PLANT USING THE SAME 审中-公开
公开(公告)号：WO2020146999A1
公开(公告)日：2020-07-23
申请号：PCT/CN2019/071743
申请日：2019-01-15
申请人： ABB SCHWEIZ AG , HUANG, Xing , YANG, Xiaobo , LIU, Kai , XIE, Hailian
发明人： HUANG, Xing , YANG, Xiaobo , LIU, Kai , XIE, Hailian
IPC分类号： H02J3/38 , H02J50/10
摘要： A PV power converter (4a, 4b, 4c, 4d), its control method and a PV power plant, the PV power converter includes: output terminals, input terminals being configured to be electrically coupled to output ends of PV array (2a, 2b, 2c, 2d), a power conversion circuit being configured to convert power supplied from the PV array (2a, 2b, 2c, 2d), and output the converted power at the output terminals, having at least one power switch being electrically inserted between the input terminals for bypassing a flow of the converted power around the output terminals, and a local controller (9a, 9b, 9c, 9d) being configured to close the power switch in response to an occurrence of a fault external to the PV power converter (4a, 4b, 4c, 4d) and keep the power switch closed for a predetermined time interval longer than a switching period of the power conversion circuit. This is helpful for decreasing the DC short circuit value while not relying on the conventional fault clear devices, such like fuses and circuit breaker. Consequently, this makes the system cheaper by not using the sorts of fault protection devices.

13. 发明申请

WO2016054799A1 METHOD AND SYSTEM FOR PROTECTING WIND FARM DURING DISCONNECTION TO UTILITY GRID 审中-公开
标题翻译：用于在实际网路断开期间保护风力发电机的方法和系统
公开(公告)号：WO2016054799A1
公开(公告)日：2016-04-14
申请号：PCT/CN2014/088273
申请日：2014-10-10
申请人： ABB TECHNOLOGY LTD , CHEN, Yao , HUANG, Xing , LIU, Kai , WANG, Qingping
发明人： CHEN, Yao , HUANG, Xing , LIU, Kai , WANG, Qingping
IPC分类号： F03D7/00
CPC分类号： F03D9/257 , F05B2270/107 , H02J3/383 , H02J3/386 , H02J11/00 , Y02E10/72
摘要： A protection method and a protection system for a wind farm disconnected to a utility grid, wherein the wind farm comprises a plurality of wind turbines, and each of the wind turbine comprises an auxiliary equipment, a transformer unit and a generator, and the transformer unit has three winding circuits. For each of the wind turbine, the protection system comprises: three measuring units and a control system. The protection method comprises: electrically connecting auxiliary equipment to the first winding circuit of the transformer unit of the respective one of the plurality of wind turbines; electrically connecting the third winding circuit of the respective one of the plurality of wind turbines to the respective one of the at least one cable; selecting one of the plurality of wind turbines as the first wind turbine; for the first wind turbine, electrically connecting its generator to the second winding circuit of its transformer unit, otherwise electrically connecting its generator to auxiliary equipment of other wind turbine via its transformer unit, the cable connecting the first wind turbine and the other wind turbine, and the transformer unit of the other wind turbine; judging a first fault of one of the plurality of wind turbines in consideration of its first set of current vectors by using differential current criterion; judging a second fault of the first wind turbine free of the first fault in consideration of operation status and the adapted configuration of the wind farm. By having the protection method and the protection system, the threshold setting for overcurrent protection scheme can be adapted to the configuration of the wind farm and operation of its components in islanding mode, thus reliability and sensitivity is improved.
摘要翻译：一种与公用电网分离的风电场的保护方法和保护系统，其中所述风电场包括多个风力涡轮机，并且所述风力涡轮机中的每一个包括辅助设备，变压器单元和发电机，以及所述变压器单元有三个绕组电路。对于每个风力涡轮机，保护系统包括：三个测量单元和一个控制系统。保护方法包括：将辅助设备电连接到多个风力涡轮机中的相应一个的变压器单元的第一绕组电路; 将所述多个风力涡轮机中的相应一个风力涡轮机的第三绕组电路电连接到所述至少一个电缆中的相应一个; 选择所述多个风力涡轮机中的一个作为所述第一风力涡轮机; 对于第一风力涡轮机，将其发电机电连接到其变压器单元的第二绕组电路，否则通过其变压器单元将其发电机电连接到其他风力涡轮机的辅助设备，连接第一风力涡轮机和另一风力涡轮机的电缆，和另一台风力发电机的变压器单元; 通过使用差分电流标准来考虑其第一组电流矢量来判断多个风力涡轮机中的一个的第一故障; 考虑到风电场的运行状态和适应的配置，判断没有第一故障的第一风力涡轮机的第二故障。通过具有保护方法和保护系统，过电流保护方案的阈值设置可以适应风电场的配置和孤岛模式下其组件的运行，从而提高了可靠性和灵敏度。

14. 发明申请

WO2012138760A1 SELECTED IP TRAFFIC OFFLOAD AND LOCAL IP ACCESS 审中-公开
标题翻译： SELECTED IP TRAFFIC OFFLOAD和本地IP访问
公开(公告)号：WO2012138760A1
公开(公告)日：2012-10-11
申请号：PCT/US2012/032172
申请日：2012-04-04
申请人： INTERDIGITAL PATENT HOLDINGS, INC. , WATFA, Mahmoud , ADJAKPLE, Pascal M. , OLVERA-HERNANDEZ, Ulises , LIU, Kai , AHMAD, Saad , WANG, Peter S.
发明人： WATFA, Mahmoud , ADJAKPLE, Pascal M. , OLVERA-HERNANDEZ, Ulises , LIU, Kai , AHMAD, Saad , WANG, Peter S.
IPC分类号： H04W36/12
CPC分类号： H04W28/0289 , H04W8/082 , H04W28/0268 , H04W28/08 , H04W76/20
摘要： A method and apparatus are described for controlling the application of Selected Internet Protocol (IP) traffic offload (SIPTO) or Local IP Access (LIPA) services for a wireless transmit/receive unit (WTRU). The SIPTO and LIPA services may be performed over packet data network (PDN) connections. A user of the WTRU may be prompted to accept or reject the usage of the SIPTO or LIPA services. The user of the WTRU may request switching from SIPTO or LIPA services to non-SIPTO or non-LIPA services.
摘要翻译：描述了一种用于控制针对无线发射/接收单元（WTRU）的所选互联网协议（IP）业务卸载（SIPTO）或本地IP接入（LIPA）服务的应用的方法和装置。可以通过分组数据网络（PDN）连接来执行SIPTO和LIPA服务。可以提示WTRU的用户接受或拒绝SIPTO或LIPA服务的使用。 WTRU的用户可以请求从SIPTO或LIPA业务切换到非SIPTO或非LIPA业务。

15. 发明申请

WO2009045342A1 SEMICONDUCTOR PACKAGE HAVING A BRIDGED PLATE INTERCONNECTION 审中-公开
标题翻译：具有桥接板互连的半导体封装
公开(公告)号：WO2009045342A1
公开(公告)日：2009-04-09
申请号：PCT/US2008/011202
申请日：2008-09-26
申请人： ALPHA AND OMEGA SEMICONDUCTOR LIMITED , SHI, Lei , SUN, Ming , LIU, Kai
发明人： SHI, Lei , SUN, Ming , LIU, Kai
IPC分类号： H01L23/495
CPC分类号： H01L23/49524 , H01L23/49562 , H01L24/37 , H01L24/40 , H01L24/48 , H01L24/73 , H01L2224/32245 , H01L2224/37011 , H01L2224/371 , H01L2224/40095 , H01L2224/40245 , H01L2224/48091 , H01L2224/48247 , H01L2224/48465 , H01L2224/73219 , H01L2224/73221 , H01L2224/73265 , H01L2224/83801 , H01L2224/84801 , H01L2924/00014 , H01L2924/01006 , H01L2924/01033 , H01L2924/01046 , H01L2924/01047 , H01L2924/01075 , H01L2924/01078 , H01L2924/01079 , H01L2924/01082 , H01L2924/1306 , H01L2924/13091 , H01L2924/181 , H01L2924/30107 , H01L2924/3011 , H01L2924/00012 , H01L2924/00 , H01L2224/45099 , H01L2224/45015 , H01L2924/207
摘要： A semiconductor package is disclosed. The package includes a leadframe having drain, source and gate leads, and a semiconductor die coupled to the leadframe, the semiconductor die having a plurality of metalized source contacts. A bridged source plate interconnection has a bridge portion, valley portions disposed on either side of the bridge portion, plane portions disposed on either side of the valley portions and the bridge portion; and a connection portion depending from one of the plane portions, the bridged source plate interconnection connecting the source lead with the plurality of metalized source contacts. The bridge portion is disposed in a plane above the plane of the valley portions while the plane portions are disposed in a plane intermediate the plane of the bridge portion and the plane of the valley portions.
摘要翻译：公开了半导体封装。封装包括具有漏极，源极和栅极引线的引线框架以及耦合到引线框架的半导体管芯，该半导体管芯具有多个金属化源极触点。桥接源极板互连具有桥接部分，设置在桥接部分的任一侧上的谷部分，设置在谷部分和桥部分两侧的平面部分; 以及从所述平面部分之一悬垂的连接部分，所述桥接源极板互连件将所述源极引线与所述多个金属化源极触点连接。桥面部分设置在平坦部分的平面上方的平面中，而平面部分设置在桥接部分的平面和谷部的平面之间的平面中。

16. 发明申请

WO2006135874A2 DFN SEMICONDUCTOR PACKAGE HAVING REDUCED ELECTRICAL RESISTANCE 审中-公开
标题翻译： DFN半导体封装具有降低的电阻
公开(公告)号：WO2006135874A2
公开(公告)日：2006-12-21
申请号：PCT/US2006/022909
申请日：2006-06-12
申请人： ALPHA & OMEGA SEMICONDUCTOR LTD. , SUN, Ming , ZHANG, Xiaotian , LIU, Kai
发明人： SUN, Ming , ZHANG, Xiaotian , LIU, Kai
IPC分类号： H01L23/495
CPC分类号： H01L23/49562 , H01L24/45 , H01L24/48 , H01L24/49 , H01L24/85 , H01L2224/05552 , H01L2224/05553 , H01L2224/0603 , H01L2224/32245 , H01L2224/45015 , H01L2224/45144 , H01L2224/45147 , H01L2224/48091 , H01L2224/48095 , H01L2224/48247 , H01L2224/48465 , H01L2224/49111 , H01L2224/49113 , H01L2224/49171 , H01L2224/4943 , H01L2224/73265 , H01L2224/85 , H01L2924/01005 , H01L2924/01013 , H01L2924/01027 , H01L2924/01028 , H01L2924/01029 , H01L2924/01033 , H01L2924/01078 , H01L2924/01079 , H01L2924/01082 , H01L2924/014 , H01L2924/1306 , H01L2924/13091 , H01L2924/14 , H01L2924/181 , H01L2924/30107 , H01L2924/00014 , H01L2924/00 , H01L2924/00012
摘要： A DFN semiconductor package is disclosed, the package includes a leadframe having a die bonding pad formed integrally with a drain lead, a source lead bonding area and a gate lead bonding area, the source lead bonding area and the gate lead bonding area being of increased area, a die coupled to the die bonding pad, a die source bonding area coupled to the source lead bonding area and a die gate bonding area coupled to the gate lead bonding area, and an encapsulant at least partially covering the die, drain lead, gate lead bonding area and source lead bonding area.
摘要翻译：公开了一种DFN半导体封装，该封装包括具有与漏极引线，源极引线接合区域和栅极引线接合区域一体形成的管芯接合焊盘的引线框架，源极引线接合区域和栅极引线接合区域增加区域，耦合到管芯接合焊盘的管芯，耦合到源极引线接合区域的管芯源极接合区域和耦合到栅极引线接合区域的管芯栅极结合区域，以及至少部分地覆盖管芯，漏极引线，栅极引线接合面积和源极引线接合面积。

17. 发明申请

WO2006101756A1 GaSa CRYSTALS FOR BROADBAND TERAHERTZ WAVE DETECTION 审中-公开
标题翻译： GaSa晶体用于宽带TERAHERTZ波检测
公开(公告)号：WO2006101756A1
公开(公告)日：2006-09-28
申请号：PCT/US2006/008370
申请日：2006-03-08
申请人： RENSSELAER POLYTECHNIC INSTITUTE , LIU, Kai , ZHANG, Xi-Cheng , XU, Jingzhou
发明人： LIU, Kai , ZHANG, Xi-Cheng , XU, Jingzhou
IPC分类号： G01J3/42
CPC分类号： G01J3/42 , G01N21/21 , G01N21/3581
摘要： A broad bandwidth detector to measure intensity information of terahertz (THz) frequency pulses. The detector includes: coupling optics coupled to a coherent optical source; a GaSe substrate aligned such that the probe beam path intersects a first surface at a phase-matching angle; a polarization detector aligned in the probe beam path; and calculation means coupled to the polarization detector. The coupling optics direct the probe optical beam along a beam path that is substantially collinear with the pulse beam path of the THz frequency pulses. The polarization of the probe optical beam is varied based on interactions between the probe optical beam and the THz frequency pulses within the GaSe substrate. The polarization detector detects the varied polarization of the probe optical beam. The calculation means determine the intensity information of the THz frequency pulses based on the detected probe polarization of the probe optical beam.
摘要翻译：用于测量太赫兹（THz）频率脉冲的强度信息的宽带宽检测器。检测器包括：耦合到相干光源的耦合光学器件; GaSe衬底对准，使得探针光束路径以相位匹配角度与第一表面相交; 在探测光束路径中对准的偏振检测器; 以及耦合到偏振检测器的计算装置。耦合光学器件沿着与THz频率脉冲的脉冲光束路径基本共线的光束路径来引导探测光束。基于探针光束和GaSe衬底内的THz频率脉冲之间的相互作用，探针光束的极化是变化的。偏振检测器检测探针光束的变化的极化。计算装置根据检测的探针光束的探针偏振来确定THz频率脉冲的强度信息。

18. 发明申请

WO2023087226A1 METHOD OF DETERMINING FAULT OF POWER SYSTEM 审中-公开
公开(公告)号：WO2023087226A1
公开(公告)日：2023-05-25
申请号：PCT/CN2021/131570
申请日：2021-11-18
申请人： ABB SCHWEIZ AG , LIU, Kai , ZHANG, Qi , VALSAN, Simi
发明人： LIU, Kai , ZHANG, Qi , VALSAN, Simi
IPC分类号： H02H7/26 , G01R19/00
摘要： A method of determining a fault of a power system comprises: estimating, based on measured electrical quantities at a first position of a power line in the power system, voltages at a second position of the power line, the measured electrical quantities being associated with three phases of the power system and comprising voltages at the first position of the power line (601); determining at least one phase angle between the voltages at the first position and the estimated voltages at the second position (602); and detecting the fault based on the at least one phase angle during a power swing (603). In the method according to the present disclosure, a three-phase fault during a power swing is identified in a shorter time, and thus the tripping is performed with a faster speed, thereby improving stability and safety of the power system.

19. 发明申请

WO2022032492A1 METHOD OF DETERMINING LINE FAULT OF POWER SYSTEM 审中-公开
公开(公告)号：WO2022032492A1
公开(公告)日：2022-02-17
申请号：PCT/CN2020/108492
申请日：2020-08-11
申请人： ABB SCHWEIZ AG , LIU, Kai , ZHANG, Qi
发明人： LIU, Kai , ZHANG, Qi
IPC分类号： G01R31/08
摘要： A method for determining a line fault of a power system comprises obtaining sampled values of voltages and currents of phases of a power line in the power system(601), wherein the phases at least comprises a first phase, a second phase and a third phase; determining, based on the sampled values of the voltages and currents, the phase compensation voltage of the first phase and the interphase compensation voltage of an interphase loop between the second and third phases(602); detecting the line fault in the first phase and/or the interphase loop by comparing the phase compensation voltage and the interphase compensation voltage(603). With the method the mal-trip due to the power swing will be prevented. In this way, the relay does not need to be blocked during the power swing. Thus, the de-block criterions are no longer needed, resulting in an increased tripping speed.

20. 发明申请

WO2018133061A1 METHOD AND CONTROL SYSTEM FOR FAULT DIRECTION DETECTION 审中-公开
公开(公告)号：WO2018133061A1
公开(公告)日：2018-07-26
申请号：PCT/CN2017/072045
申请日：2017-01-22
申请人： ABB SCHWEIZ AG , LIU, Kai , WANG, Jianping , LI, Youyi
发明人： LIU, Kai , WANG, Jianping , LI, Youyi
IPC分类号： G01R31/08
摘要： It provides a method for detecting fault direction of transmission line (10) of an AC power system (1) and a control system using the same. The method includes sampling current values and voltage values at one end of the transmission line (10) for a series of time points； computing instantaneous voltage values at compensated point on the transmission line (10) from the current value samples and the voltage value samples based on a time domain lumped parameter differential equation for the transmission line (10) for the series of time points； recording the current value samples and the computed instantaneous voltage values at the compensated point； computing at least one voltage fault component each using the recorded computed instantaneous voltage values for at least two of the series of time points； computing at least one current fault component each using the recorded current value samples for the at least two of the series of time points； identifying the fault direction in consideration of the at least one computed voltage fault component and the at least one computed current fault component； and generating a fault direction signal indicating the identified fault direction. Where a fault directional element is designed using the voltage fault components at the compensated point, it will work well for the AC power system (1) with strong power source.

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