专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2020135112A1 ELECTROLYTIC PRODUCTION OF HIGH-PURITY LITHIUM FROM LOW-PURITY SOURCES 审中-公开
公开(公告)号：WO2020135112A1
公开(公告)日：2020-07-02
申请号：PCT/CN2019/125337
申请日：2019-12-13
申请人： CUI, Yi , JIN, Yang , WU, Hui , LIU, Kai , LANG, Jialiang
发明人： CUI, Yi , JIN, Yang , WU, Hui , LIU, Kai , LANG, Jialiang
IPC分类号： C25C3/02 , C25C7/00
摘要： Devices and methods for purifying lithium from lithium salts, including those with low concentration of lithium salts, are provided. A molten composition comprising a lithium salt is electrolyzed with an anode in contact with the molten composition and a cathode separated from the molten composition by a solid electrolyte capable of conducting lithium ions.

2. 发明申请

WO2018227467A1 METHOD AND CONTROL SYSTEM FOR FAULT DIRECTION DETECTION 审中-公开
公开(公告)号：WO2018227467A1
公开(公告)日：2018-12-20
申请号：PCT/CN2017/088417
申请日：2017-06-15
申请人： ABB SCHWEIZ AG , LIU, Kai
发明人： LIU, Kai
IPC分类号： H02H7/26
摘要： It provides a method for detecting fault direction of transmission line (10) of an AC power system and control system using the same. The method includes: sampling current values and voltage values of three phases at one end of the transmission line (10) for a series of time points; for each of the series of time points, computing instantaneous symmetrical voltage components of the three phases based on the voltage value samples for the respective one of the series of time points; for each of the series of time points, computing instantaneous symmetrical current components of the three phases based on the current value samples for the respective one of the series of time points; for at least two of the series of time points, calculating energy directional elements each based on the respective ones of the computed instantaneous symmetrical voltage components and the respective ones of the computed instantaneous symmetrical current components; identifying the fault direction in consideration of the calculated energy directional elements; and generating a fault direction signal indicating the identified fault direction. Simulation results show the graph of the energy directional element calculated based on instantaneous symmetrical voltage components and instantaneous symmetrical current components exhibits distinctive characteristics either for forward or reverse fault. In consideration of such difference, by calculating the energy directional element at each sampling time point, the fault direction information may be identified accurately.

3. 发明申请

WO2017177424A1 METHOD, SYSTEM AND APPARATUS FOR FAULT DETECTION IN LINE PROTECTION FOR POWER TRANSMISSION SYSTEM 审中-公开
标题翻译：输电线路保护故障检测方法，系统和装置
公开(公告)号：WO2017177424A1
公开(公告)日：2017-10-19
申请号：PCT/CN2016/079323
申请日：2016-04-14
申请人： ABB SCHWEIZ AG , LIU, Kai , LI, Youyi , WANG, Jianping
发明人： LIU, Kai , LI, Youyi , WANG, Jianping
IPC分类号： G01R31/08
摘要： A method, system and apparatus of fault detection in line protection for a power transmission system. A voltage (u) at a measurement point on an electrical line is obtained. The measurement point is a point at which a protection device for the line protection is installed. A current (i) at the measurement point is further obtained and a differential value of the current is determined. Then, a voltage (u q ) at a setting point on the electrical line is determined from the voltage (u) at the measurement point, the current (i) at the measurement point and the differential value of the current (i) according to a time domain lumped parameter model for the electrical line. The voltage change between the determined voltage at the setting point during the fault period and a voltage at the setting point determined during a pre-fault period can be further determined. The fault detection can be performed based on the determined voltage change and a fault threshold. It can ensure voltage determination accuracy and detection reliability with a low sampling rate. Moreover, the solution can work right after the fault inception, almost no waiting time is required, and thus it may achieve a super-fast line protection.
摘要翻译：一种用于电力传输系统的线路保护中的故障检测方法，系统和设备。获得电线上测量点处的电压（u）。测量点是安装线路保护装置的点。进一步获得测量点处的电流（i）并确定电流的微分值。然后，根据测量点处的电压（u），测量点处的电流（i）以及测量点处的电流（i）的微分值来确定电线上的设定点处的电压（u 电流（i）根据电线的时域集总参数模型。可以进一步确定故障期间设定点处的确定电压与故障前期间确定的设定点处的电压之间的电压变化。故障检测可以基于所确定的电压变化和故障阈值来执行。它能以较低的采样率确保电压测定精度和检测可靠性。而且，解决方案在故障发生后可以正常工作，几乎不需要等待时间，因此可以实现超高速线路保护。

4. 发明申请

WO2016074198A1 DC GRID CURRENT DIFFERENTIAL PROTECTION METHOD AND SYSTEM THEREOF 审中-公开
标题翻译：直流电流差分保护方法及其系统
公开(公告)号：WO2016074198A1
公开(公告)日：2016-05-19
申请号：PCT/CN2014/091024
申请日：2014-11-13
申请人： ABB TECHNOLOGY LTD , LIU, Kai , LI, Youyi , WANG, Jianping
发明人： LIU, Kai , LI, Youyi , WANG, Jianping
IPC分类号： H02H7/26
CPC分类号： H02H7/268 , G01R31/08 , H02H7/261 , H02H7/263 , H02H7/265
摘要： A DC grid current differential protection method and system are provided. The method includes: sampling value acquiring step (S301): acquiring pole voltage and current sampling values in local and remote terminal of a DC line; fault component extracting step (S302): calculating fault component pole voltage and current values according to the pole voltage and current sampling values of local and remote terminal respectively; Bergeron model calculating step (S303): acquiring fault component pole current values at selected point on the DC line between the local and the remote terminal, by the calculation of the fault component pole voltage and current values of local and remote terminal calculated in the fault component extracting step, based on Bergeron model; current differential protection judging step (S304): judging internal fault if the fault component pole current values at selected point meet preset current differential protection criterion. Because of adopting Bergeron model, it improves the calculating speed.
摘要翻译：提供直流电网电流差动保护方法和系统。该方法包括：采样值获取步骤（S301）：获取DC线路本地和远端终端的极电压和电流采样值; 故障分量提取步骤（S302）：分别根据本地和远端的极点电压和电流采样值计算故障分量极点电压和电流值; 贝格龙模型计算步骤（S303）：通过计算故障分量极点电压和在故障中计算的本地和远程终端的当前值，获取本地和远程终端之间直流线上选定点的故障分量极点电流值基于贝格伦模型的分量提取步骤; 电流差动保护判断步骤（S304）：如果选定点的故障分量极点电流值满足预设电流差动保护标准，则判断内部故障。采用Bergeron模型，提高了计算速度。

5. 发明申请

WO2014166027A1 A METHOD FOR DETECTING FAULT AND CURRENT DIFFERENTIAL PROTECTION SYSTEM THEREOF 审中-公开
标题翻译：一种用于检测故障和电流差动保护系统的方法
公开(公告)号：WO2014166027A1
公开(公告)日：2014-10-16
申请号：PCT/CN2013/073797
申请日：2013-04-07
申请人： ABB TECHNOLOGY LTD. , LI, Youyi , LIU, Kai , BRNCIC, Ivo , SHI, Zhanpeng
发明人： LI, Youyi , LIU, Kai , BRNCIC, Ivo , SHI, Zhanpeng
IPC分类号： H02H3/28
CPC分类号： H02H9/02 , H02H3/006 , H02H3/28 , H02H3/283 , H02H7/045
摘要： The present invention discloses a method for detecting fault and current differential protection system thereof. The method for detecting fault comprises: calculating fault component currents; calculating the operate current and restraint current of all terminals; and adjusting the operate level by adapting an operate-restraint characteristic according to the fault component, it has very small operate area for external fault, which makes it very reliable even for the case with serious CT saturation. While a very big operate area for internal fault makes it very sensitive for internal fault even for heavy load and high resistance fault.
摘要翻译：本发明公开了一种用于检测故障和电流差动保护系统的方法。检测故障的方法包括：计算故障分量电流; 计算所有端子的工作电流和约束电流; 通过根据故障分量调整运行限制特性来调整运行电平，对于外部故障具有非常小的操作区域，即使对于严重的CT饱和情况也是如此。虽然内部故障的非常大的操作区域对于内部故障甚至对于重负载和高电阻故障也非常敏感。

6. 发明申请

WO2013028559A1 METHOD AND APPARATUS FOR USING NON-ACCESS STRATUM PROCEDURES IN A MOBILE STATION TO ACCESS RESOURCES OF COMPONENT CARRIERS BELONGING TO DIFFERENT RADIO ACCESS TECHNOLOGIES 审中-公开
标题翻译：在移动站中使用非访问条件程序以访问与不同无线电访问技术相关的组件运营商资源的方法和装置
公开(公告)号：WO2013028559A1
公开(公告)日：2013-02-28
申请号：PCT/US2012/051457
申请日：2012-08-17
申请人： INTERDIGITAL PATENT HOLDINGS, INC. , ADJAKPLE, Pascal M. , WATFA, Mahmoud , OLVERA-HERNANDEZ, Ulises , WANG, Peter S. , LIU, Kai , AHMAD, Saad , PELLETIER, Ghyslain
发明人： ADJAKPLE, Pascal M. , WATFA, Mahmoud , OLVERA-HERNANDEZ, Ulises , WANG, Peter S. , LIU, Kai , AHMAD, Saad , PELLETIER, Ghyslain
IPC分类号： H04W76/02
CPC分类号： H04W76/15 , H04W60/005
摘要： Methods and apparatus are disclosed for a wireless transmit/receive unit (WTRU) to perform a multi-radio access technology (RAT) access (MRA) operation. The apparatus may include a WTRU non-access stratum (NAS) entity to communicate with a first and second NAS entity of a first and second core network (CN). Alternatively, the first WTRU NAS entity communicates with a first NAS entity of a first CN, and a second WTRU NAS entity communicates with a second NAS entity of a second CN. The apparatus may include a radio resource control (RRC) entity which controls a first RAT connected to the first CN and a second RAT connected to the second CN. Alternatively, the apparatus includes an RRC entity which controls a first connection using a first RAT connected to the first CN and a second connection using a second RAT connected to a second CN.
摘要翻译：公开了用于无线发射/接收单元（WTRU）以执行多无线电接入技术（RAT）接入（MRA）操作的方法和装置。该装置可以包括与第一和第二核心网络（CN）的第一和第二NAS实体进行通信的WTRU非接入层（NAS）实体。或者，第一WTRU NAS实体与第一CN的第一NAS实体通信，并且第二WTRU NAS实体与第二CN的第二NAS实体进行通信。该装置可以包括控制连接到第一CN的第一RAT的无线电资源控制（RRC）实体和连接到第二CN的第二RAT。或者，该装置包括RRC实体，其使用连接到第一CN的第一RAT来控制第一连接，以及使用连接到第二CN的第二RAT来进行第二连接。

7. 发明申请

WO2012154542A1 METHODS AND APPARATUS FOR USING CONTROL PLANE TO TRANSMIT AND RECEIVE DATA 审中-公开
标题翻译：使用控制平面发送和接收数据的方法和装置
公开(公告)号：WO2012154542A1
公开(公告)日：2012-11-15
申请号：PCT/US2012/036480
申请日：2012-05-04
申请人： INTERDIGITAL PATENT HOLDINGS, INC. , WATFA, Mahmoud , OLVERA-HERNANDEZ, Ulises , ADJAKPLE, Pascal M. , LIU, Kai , WANG, Peter S. , AHMAD, Saad , AGHILI, Behrouz
发明人： WATFA, Mahmoud , OLVERA-HERNANDEZ, Ulises , ADJAKPLE, Pascal M. , LIU, Kai , WANG, Peter S. , AHMAD, Saad , AGHILI, Behrouz
IPC分类号： H04W4/12
CPC分类号： H04W72/04 , H04W60/00 , H04W60/04 , H04W76/10 , H04W76/12 , H04W76/27 , H04W80/04 , H04W84/042 , H04W88/06 , H04W92/10
摘要： Methods and apparatus are described for transmitting and receiving data by a wireless transmit/receive unit (WTRU) over the control plane. The methods may receive data without the use of an Internet Protocol (IP) address. In an example method, a WTRU may enter an evolved packet system (EPS) mobility management (EMM)-registered control plane only (CPO) state after receiving an attach accepted message for CPO operation, and enter an EMM-deregistered state after receiving a detach message, a tracking area update (TAU) reject message or an attach reject message. In another method, a WTRU may switch between operational modes that use an IP address and a user plane to transmit and receive data, and the CPO mode.
摘要翻译：描述了用于通过无线发射/接收单元（WTRU）在控制平面上发送和接收数据的方法和装置。该方法可以接收数据而不使用因特网协议（IP）地址。在一个示例性方法中，WTRU在接收到用于CPO操作的附接接受消息之后，可以进入演进分组系统（EPS）移动性管理（EMM）注册控制面（CPO）状态，并且在接收到之后进入EMM去注册状态分离消息，跟踪区域更新（TAU）拒绝消息或附着拒绝消息。在另一种方法中，WTRU可以在使用IP地址和用户平面的操作模式之间切换以发送和接收数据，以及CPO模式。

8. 发明申请

WO2012061680A3 RELAY NODE INTERFACE RELATED LAYER 2 MEASUREMENTS AND RELAY NODE HANDLING IN NETWORK LOAD BALANCING 审中-公开
标题翻译：在网络负载平衡中继电器节点接口相关第2层测量和继电器节点处理
公开(公告)号：WO2012061680A3
公开(公告)日：2012-11-15
申请号：PCT/US2011059277
申请日：2011-11-04
申请人： INTERDIGITAL PATENT HOLDINGS , LIU KAI , WANG PETER S , TAMAKI NOBUYUKI , STERN-BERKOWITZ JANET A , TERRY STEPHEN E
发明人： LIU KAI , WANG PETER S , TAMAKI NOBUYUKI , STERN-BERKOWITZ JANET A , TERRY STEPHEN E
IPC分类号： H04W24/10
CPC分类号： H04W36/30 , H04W24/10 , H04W36/0094 , H04W36/22 , H04W84/047
摘要： A method for performing radio usage measurements to support radio link operations and/or load balancing may be performed at an evolved Node B (eNB). The method may include determining a first radio usage parameter. The first radio usage parameter may be a measurement of radio usage between an eNB and at least one wireless transmit receive unit (WTRU). The method may further include determining a second radio usage parameter. The second radio usage parameter may be a measurement of radio usage between the eNB and at least one relay node (RN) served by the eNB. The method may further include utilizing at least one of the first radio usage parameter or the second radio usage parameter to evaluate at least one of evolved universal terrestrial radio access (E-UTRA) radio link operations, radio resource management (RRM), network operations and maintenance (OAM), and self-organizing networks (SON) functions or functionalities.
摘要翻译：可以在演进节点B（eNB）处执行用于执行无线电使用测量以支持无线电链路操作和/或负载平衡的方法。该方法可以包括确定第一无线电使用参数。第一无线电使用参数可以是eNB与至少一个无线发射接收单元（WTRU）之间的无线电使用的测量。该方法可以进一步包括确定第二无线电使用参数。第二无线电使用参数可以是eNB与由eNB服务的至少一个中继节点（RN）之间的无线电使用的测量。该方法还可以包括利用第一无线电使用参数或第二无线电使用参数中的至少一个来评估演进的通用陆地无线电接入（E-UTRA）无线电链路操作，无线电资源管理（RRM），网络操作和维护（OAM）以及自组织网络（SON）功能或功能。

9. 发明申请

WO2012135793A2 LOCAL/REMOTE IP TRAFFIC ACCESS AND SELECTIVE IP TRAFFIC OFFLOAD SERVICE CONTINUITY 审中-公开
标题翻译：本地/远程IP流量访问和选择性IP流量卸载服务连续性
公开(公告)号：WO2012135793A2
公开(公告)日：2012-10-04
申请号：PCT/US2012/031743
申请日：2012-03-31
申请人： INTERDIGITAL PATENT HOLDINGS, INC. , OLVERA-HERNANDEZ, Ulises , ADJAKPLE, Pascal, M. , AHMAD, Saad , WANG, Peter, S. , WATFA, Mahmoud , LIU, Kai
发明人： OLVERA-HERNANDEZ, Ulises , ADJAKPLE, Pascal, M. , AHMAD, Saad , WANG, Peter, S. , WATFA, Mahmoud , LIU, Kai
IPC分类号： H04W36/00
CPC分类号： H04W36/22 , H04W8/186 , H04W28/08 , H04W36/08 , H04W76/10 , H04W80/04 , H04W84/045 , H04W88/16
摘要： Disclosed herein are systems and methods for handling closed subscriber group (CSG) based local / remote IP traffic offload and selective IP traffic offload. According to an aspect, a method may be implemented at user equipment (UE). The method may include determining that a service to the UE requires a predetermined quality of service (QoS). The method may also include selecting a gateway from among a plurality of gateways in response to determining that the service to the UE requires the predetermined QoS.
摘要翻译：本文公开了用于处理基于封闭用户组（CSG）的本地/远程IP流量卸载和选择性IP流量卸载的系统和方法。根据一个方面，可以在用户设备（UE）处实现一种方法。该方法可以包括确定到UE的服务需要预定的服务质量（QoS）。该方法还可以包括响应于确定到UE的服务需要预定的QoS来从多个网关中选择网关。

10. 发明申请

WO2012097115A1 LOCAL INTERNET PROTOCOL ACCESS CONNECTION HANDLING DURING CIRCUIT SWITCHED FALLBACK AND HANDOVER 审中-公开
标题翻译：电路开关倒车和切换期间的本地互联网协议访问连接处理
公开(公告)号：WO2012097115A1
公开(公告)日：2012-07-19
申请号：PCT/US2012/021014
申请日：2012-01-12
申请人： INTERDIGITAL PATENT HOLDINGS, INC. , WATFA, Mahmoud , WANG, Peter, S. , LIU, Kai , ADJAKPLE, Pascal, M. , OLVERA-HERNANDEZ, Ulises , AGHILI, Behrouz
发明人： WATFA, Mahmoud , WANG, Peter, S. , LIU, Kai , ADJAKPLE, Pascal, M. , OLVERA-HERNANDEZ, Ulises , AGHILI, Behrouz
IPC分类号： H04W36/00
CPC分类号： H04W68/00 , H04W36/0022 , H04W36/12 , H04W68/12 , H04W92/20
摘要： A method and apparatus are described for handling local Internet protocol (IP) access (LIPA) connection during circuit switched fallback (CSFB) and handover (HO). One representative method of managing a Local Internet Protocol Access (LIPA) packet data network (PDN) connection to a wireless transmit/receive unit (WTRU), includes performing a switching operation to switch from the LIPA PDN connection to a non-LIPA PDN connection for communication to the WTRU; and suspending the LIPA PDN connection, in response to the switching operation.
摘要翻译：描述了在电路交换回退（CSFB）和切换（HO）期间处理本地互联网协议（IP）访问（LIPA）连接的方法和装置。管理到无线发射/接收单元（WTRU）的本地互联网协议接入（LIPA）分组数据网络（PDN）连接的一种代表性方法包括执行切换操作以从LIPA PDN连接切换到非LIPA PDN连接用于与WTRU的通信; 并且响应于切换操作来暂停LIPA PDN连接。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式