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1. 发明申请

WO2012000549A1 METHOD AND CONTROL DEVICE FOR CONTROLLING POWER FLOW WITHIN A DC POWER TRANSMISSION NETWORK 审中-公开
标题翻译：这个控制功率流在网络电力传输方法和控制设备继续
公开(公告)号：WO2012000549A1
公开(公告)日：2012-01-05
申请号：PCT/EP2010/059311
申请日：2010-06-30
申请人： ABB Research Ltd , BERGGREN, Bertil , MAJUMDER, Rajat , SAO, Charles , LINDEN, Kerstin
发明人： BERGGREN, Bertil , MAJUMDER, Rajat , SAO, Charles , LINDEN, Kerstin
IPC分类号： H02J3/36 , H02J1/10 , H02J1/14
CPC分类号： G05F1/66 , H02J1/102 , H02J1/12 , H02J1/14 , H02J3/36 , Y02E60/60
摘要： The invention relates to a method (80) for controlling power flow within a DC power flow within a DC power transmission network (1) comprising two or more interconnected converter stations (10 a , 10 b , 10 c , 10 d , 10 e ). The method (80) comprises the steps of: establishing a common feedback signal (U d,common , Ũ d'common ) to the converter stations, the common feedback signal (U d,common , Ũ d',common ) being based on an overall voltage level in the DC transmission, power network (1); providing, in the converter stations, a control signal (S 1 , S 2 , S 3 , S 4 ) based on the common feedback signal (U d,common ) and a drooped error signal (P e, droop , U e, droop ); and controlling the power flow within the DC power transmission network (1) towards set operating points ( U d ref , PCC ref by using the control signal (S 1 , S 2 , S 3 , S 4 ). The invention also relates to a control device ( 18 a , 18 b , 18 c , 18 d , 18 e ) and computer program products.
摘要翻译：本发明涉及一种用于控制功率以连续的功率流中的DC电力传输网络，其包括两个换流站（10A，10B，10C，10D，10E）或多个流（1）的方法（80）互联。该方法（80）包括以下步骤：建立一个共同反馈信号（U D，常见的，共同U）到转换器站，公共反馈信号（U D，常见的，共同U）是基于张力的连续输电网络中的总水平（1）; 施加在变流器站，基于公共反馈信号（U D，常见）和经调节的误差信号的控制信号（S1，S2，S3，S4）（P E，下垂，U E，下垂）; 和由所述控制信号的装置（S1，S2，S3，S4），其控制功率的直流电力传输网络（1）中所设定的操作点（UD REF，PCCref）的流动。本发明还涉及一种控制装置（18A，18B，18C，18D，18E）和计算机程序产品。

2. 发明申请

WO2011157306A1 BREAKER FAILURE PROTECTION OF HVDC CIRCUIT BREAKERS 审中-公开
标题翻译：断路器故障保护高压直流断路器
公开(公告)号：WO2011157306A1
公开(公告)日：2011-12-22
申请号：PCT/EP2010/063377
申请日：2010-09-13
申请人： ABB RESEARCH LTD , BERGGREN, Bertil , WANG, Jianping , PAN, Juiping , LINDEN, Kerstin , NUQUI, Reynaldo
发明人： BERGGREN, Bertil , WANG, Jianping , PAN, Juiping , LINDEN, Kerstin , NUQUI, Reynaldo
IPC分类号： H02H7/26 , H02H3/44 , H02H7/30
CPC分类号： H02H7/268 , H02H3/044 , H02H3/05 , H02H3/445 , H02H7/222 , H02H7/30
摘要： A breaker failure protection system (100) for a high voltage direct current, HVDC, circuit breaker (103) is provided. The circuit breaker is arranged for interrupting a DC circuit (101, 102) upon reception of a trip signal (108). The protection system comprises a current sensor (104), at least one inductor (105, 106), and a breaker failure detection unit (107). The current sensor is arranged for measuring a current I (t) through the DC circuit. The at least one inductor is connected in series with the DC circuit. The breaker failure detection unit is arranged for assessing, whether the circuit breaker has failed, and sending, if the circuit breaker has failed, a trip signal (109) to an adjacent circuit breaker. The assessment is based on the measured current. The stability of HVDC grids may be improved by sending, in case of a breaker failure, a trip signal to adjacent circuit breakers. Further, a method of breaker failure protection for an HVDC circuit breaker is provided.
摘要翻译：提供了一种用于高压直流，HVDC，断路器（103）的断路器故障保护系统（100）。断路器被布置成在接收到跳闸信号（108）时中断DC电路（101,102）。保护系统包括电流传感器（104），至少一个电感器（105,106）和断路器故障检测单元（107）。电流传感器用于测量通过直流电路的电流I（t）。至少一个电感器与DC电路串联连接。断路器故障检测单元被布置用于评估断路器是否发生故障，并且如果断路器发生故障，则发送到相邻断路器的跳闸信号（109）。评估是基于测量的电流。在断路器故障的情况下，通过发送到相邻断路器的跳闸信号，可以提高HVDC电网的稳定性。此外，还提供了一种用于HVDC断路器的断路器故障保护方法。

3. 发明申请

WO2011157305A1 FAULT PROTECTION OF HVDC TRANSMISSION LINES 审中-公开
标题翻译：高压直流输电线路的故障保护
公开(公告)号：WO2011157305A1
公开(公告)日：2011-12-22
申请号：PCT/EP2010/063372
申请日：2010-09-13
申请人： ABB RESEARCH LTD , BERGGREN, Bertil , WANG, Jianping , PAN, Juiping , SRIVASTAVA, Kailash , LINDEN, Kerstin , NUQUI, Reynaldo
发明人： BERGGREN, Bertil , WANG, Jianping , PAN, Juiping , SRIVASTAVA, Kailash , LINDEN, Kerstin , NUQUI, Reynaldo
IPC分类号： H02H7/26 , H02H3/38 , H02H3/42 , H02H3/44
CPC分类号： H02H3/42 , H02H3/38 , H02H3/445 , H02H7/268
摘要： A protection system (200) for high voltage direct current, HVDC, transmission lines is provided. The protection system comprises a direct current, DC, bus (201), means (202) for connecting an HVDC transmission line to the bus, at least one DC circuit breaker (203, 204) arranged for disconnecting the transmission line from the bus upon reception of a trip signal, current (211) and voltage sensors (212), an inductor (213) arranged such that the current through the transmission line passes the inductor, and a fault detection unit (220). The fault detection unit is arranged for assessing, on the basis of current and/or voltage measurements, whether a fault exists on the transmission line, and sending, if a fault is detected on the transmission line, a trip signal to the circuit breaker. The additional inductance limits the rise in fault current and facilitates a selective fault detection. Further, a method of fault protection for an HVDC transmission line is provided.
摘要翻译：提供用于高压直流，HVDC，传输线路的保护系统（200）。保护系统包括直流DC总线（201），用于将HVDC传输线连接到总线的装置（202），至少一个直流断路器（203,204），其布置成用于将传输线与总线断开接收跳闸信号，电流（211）和电压传感器（212），布置成使得通过传输线的电流通过电感器的电感器（213）和故障检测单元（220）。该故障检测单元被设置为基于当前和/或电压测量来评估传输线路上是否存在故障，并且如果在传输线路上检测到故障则发送到断路器的跳闸信号。附加电感限制故障电流的上升，并有助于选择性故障检测。此外，还提供了用于HVDC传输线的故障保护方法。

4. 发明申请

WO2012123014A3 A CURRENT LIMITATION SYSTEM FOR LIMITING THE EFFECTS OF A FAULT IN A DC GRID AND A METHOD OF OPERATING A CURRENT LIMITATION SYSTEM 审中-公开
公开(公告)号：WO2012123014A3
公开(公告)日：2012-09-20
申请号：PCT/EP2011/053738
申请日：2011-03-11
申请人： ABB TECHNOLOGY AG , BERGGREN, Bertil , HÄFNER, Jurgen , JUHLIN, Lars-Erik , LINDEN, Kerstin , ZHANG, Lidong
发明人： BERGGREN, Bertil , HÄFNER, Jurgen , JUHLIN, Lars-Erik , LINDEN, Kerstin , ZHANG, Lidong
IPC分类号： H02H3/02 , H02H7/26 , H02H9/02
摘要： A current-limitation system for limiting a current through an DC connection in case of a fault occurring in a DC grid of which the DC connection forms a part is provided, as well as a method of operating a current-limitation system for limiting a current through an DC connection in case of a fault occurring in a DC grid of which the DC connection forms a part.

5. 发明申请

WO2012123015A1 A DC GRID AND A METHOD OF LIMITING THE EFFECTS OF A FAULT IN A DC GRID 审中-公开
标题翻译：直流电网和限制直流电网故障影响的方法
公开(公告)号：WO2012123015A1
公开(公告)日：2012-09-20
申请号：PCT/EP2011/053746
申请日：2011-03-11
申请人： ABB TECHNOLOGY AG , BERGGREN, Bertil , HÄFNER, Jurgen , JUHLIN, Lars-Erik , LINDEN, Kerstin , ZHANG, Lidong
发明人： BERGGREN, Bertil , HÄFNER, Jurgen , JUHLIN, Lars-Erik , LINDEN, Kerstin , ZHANG, Lidong
IPC分类号： H02H7/26
CPC分类号： H02H9/02 , H02H7/268
摘要： A DC grid (100) comprising a plurality of AC/DC converters (105) which are interconnected via DC lines (115) is provided, wherein, in order to limit the effects of a fault in the DC grid, the DC grid is divided into at least two zones (200) by means of at least one current limiter (205) in a manner so that a current limiter is connected in each of the DC line(s) (115z) by which two zones are interconnected. A method of limiting the effects of a fault in a DC grid by dividing the DC grid into at least two zones is also provided.
摘要翻译：提供了包括通过DC线路（115）互连的多个AC / DC转换器（105）的DC电网（100），其中为了限制DC电网中的故障的影响，DC电网被分割通过至少一个限流器（205）以至少两个区域（200）的方式进入至少两个区域（200），使得限流器连接在两个区域相互连接的每条直流线路（115z）中。还提供了通过将DC网格划分成至少两个区域来限制DC网格中的故障的影响的方法。

6. 发明申请

WO2012000548A1 A MULTI-TERMINAL DC TRANSMISSION SYSTEM AND METHOD AND MEANS FOR CONTROL THEREOF 审中-公开
标题翻译：多终端直流传输系统及其控制方法和手段
公开(公告)号：WO2012000548A1
公开(公告)日：2012-01-05
申请号：PCT/EP2010/059308
申请日：2010-06-30
申请人： ABB TECHNOLOGY AG , LINDEN, Kerstin , FLISBERG, Gunnar , JUHLIN, Lars-Erik , HOLMBERG, Per
发明人： LINDEN, Kerstin , FLISBERG, Gunnar , JUHLIN, Lars-Erik , HOLMBERG, Per
IPC分类号： H02J3/36 , H02M7/757
CPC分类号： H02J1/00 , H02J1/12 , H02J3/36 , H02M7/7575 , Y02E60/60 , Y10T307/707
摘要： The invention relates to a method 30 for controlling power flow within a multi-terminal DC power transmission system 1 comprising two or more converter stations 10A, 10B, 10C, 10D, 10E. The method 30 comprises the steps of : controlling 31 the power flow to a steady state reference operating point 22A, 22B, 22C, 22D, 22E for operating points within a control dead band 21A, 21B, 21C, 21D, 21E defined for each respective converter station 10A, 10B, 10C, 10D, 10E, and controlling 32 the power flow by means of droop control in at least one of the converter stations 10A, 10B, 10C, 10D, 10E upon detection of exceeding of an end point of one or more of the control dead bands 21A, 21B, 21C, 21D, 21E. The invention also relates to a corresponding multi-terminal DC power transmission system 1.
摘要翻译：本发明涉及一种用于控制包括两个或多个转换器站10A，10B，10C，10D，10E的多端子直流电力传输系统1内的功率流的方法30。方法30包括以下步骤：控制31个功率流到稳态参考工作点22A，22B，22C，22D，22E，以便为每个相应的控制死区21A，21B，21C，21D，21E内的操作点操作点转换站10A，10B，10C，10D，10E，并且通过在检测到超过一个端点的转换器站10A，10B，10C，10D，10E中的至少一个中的下降控制来控制功率流或更多的控制死区21A，21B，21C，21D，21E。本发明还涉及相应的多端子直流电力传输系统1。

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