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    • 1. 发明申请
    • FAULT HANDLING DURING CIRCUIT BREAKER MAINTENANCE IN A DOUBLE-BREAKER BUSBAR SWITCHYARD
    • 断路器母线开关中的断路器维护期间的故障处理
    • WO2012136241A1
    • 2012-10-11
    • PCT/EP2011/055184
    • 2011-04-04
    • ABB TECHNOLOGY AGBERGGREN, BertilPAN, Juiping
    • BERGGREN, BertilPAN, Juiping
    • H02H7/26
    • H02H7/268H02H7/30
    • A fault protection device (103) for a high voltage direct current (HVDC) double-breaker busbar unit (100) is provided. The busbar unit (100) comprises a first busbar (101), a second busbar (102), and at least three switchgear bays (110, 120, 130), each switchgear bay comprising a pair of direct current (DC) circuit breakers (112, 113, 122, 123, 132, 133) being arranged for connecting a DC circuit (111, 121, 131) to the busbars (101, 2). The device is arranged for tripping, during maintenance of any of the circuit breakers (112, 122, 132) connected to the first busbar (101), in 10 response to detecting a fault on a DC circuit (121) connected to the circuit breaker (122) under maintenance, all circuit breakers (113, 133) connected to the second busbar (102) except the circuit breaker (123) connected to the faulty DC circuit (121). An embodiment of the invention is advantageous in that the fault induced current which is to be interrupted is shared by at least two circuit breakers (113, 133). Further, a fault protection method of an HVDC double-breaker busbar unit is provided.
    • 提供了一种用于高压直流(HVDC)双断路母线单元(100)的故障保护装置(103)。 母线单元(100)包括第一母线(101),第二母线(102)和至少三个开关柜(110,120,130),每个开关柜室包括一对直流(DC)断路器 112,113,122,123,132,133)被布置成用于将DC电路(111,121,131)连接到汇流排(101,2)。 该装置被布置成在维护连接到第一母线(101)的任何断路器(112,122,132)的维护期间,响应于检测连接到断路器的DC电路(121)上的故障而跳闸 (122),除了连接到故障DC电路(121)的断路器(123)之外的连接到第二母线(102)的所有断路器(113,133)。 本发明的一个实施例的优点在于,要被中断的故障感应电流由至少两个断路器(113,133)共享。 此外,还提供了HVDC双断路器母线单元的故障保护方法。
    • 3. 发明申请
    • POWER OR VOLTAGE OSCILLATION DAMPING IN A POWER TRANSMISSION SYSTEM
    • 电力传输系统中的电源或电压振荡阻尼
    • WO2011015247A1
    • 2011-02-10
    • PCT/EP2009/060245
    • 2009-08-06
    • ABB Research LtdBERGGREN, BertilMAJUMDER, RajatRAY, SwaksharCHAUDHURI, BalarkoRAY CHAUDHURI, Nilanjan
    • BERGGREN, BertilMAJUMDER, RajatRAY, SwaksharCHAUDHURI, BalarkoRAY CHAUDHURI, Nilanjan
    • H02J3/24
    • H02J3/24Y02E60/728Y04S10/265
    • The invention provides a method, device and computer program product for providing improved control of power or voltage oscillation damping in a power transmission system. The device comprises a magnitude obtaining element (30) configured to obtain an instantaneous magnitude of a signal ( I ΔP I ) representing a deviating oscillation in at least one element (12) of the power transmission system, a slope investigating element (58) configured to determine the rate of change of the signal, and a first processing block (34) comprising an integrating element (38) configured to integrate the instantaneous magnitudes with an integrating factor (Ki) that is based on the determined rate of change. The first processing block is further configured to form a phase compensation angle (ϕ c ) based on the integrated instantaneous magnitude for use in a damping control signal generating unit in order to provide power or voltage oscillation damping of the system.
    • 本发明提供了一种用于在电力传输系统中提供对功率或电压振荡阻尼的改进控制的方法,装置和计算机程序产品。 该装置包括:大小获得元件(30),其被配置为获得表示所述电力传输系统的至少一个元件(12)中的偏移振荡的信号(I→PI)的瞬时幅度;斜率调查元件(58)被配置 以确定信号的变化率,以及包括积分元件(38)的第一处理块(34),其被配置为将瞬时幅度与基于所确定的变化率的积分因子(Ki)进行积分。 第一处理块还被配置为基于用于阻尼控制信号生成单元的积分瞬时幅度形成相位补偿角(θc),以便提供系统的功率或电压振荡阻尼。
    • 9. 发明申请
    • USING THE TRANSFER SWITCH OF A HYBRID CIRCUIT BREAKER AS SELECTOR SWITCH
    • 使用混合电路断路器的转换开关作为选择开关
    • WO2013068046A1
    • 2013-05-16
    • PCT/EP2011/069943
    • 2011-11-11
    • ABB Technology AGBERGGREN, BertilJUHLIN, Lars-Erik
    • BERGGREN, BertilJUHLIN, Lars-Erik
    • H02H7/26H02J3/36
    • H02B1/00H02H7/268H02J3/36Y02E60/60Y10T307/747
    • A high voltage direct current (HVDC) switchyard(300)is provided. The switchyard is arranged for interconnecting three or more sections(310, 320, 330)of an HVDC power network, such as transmission lines, converters, or any other type of HVDC equipment. The switchyard comprises at least one main circuit breaker (301) and at least four transfer switches(302–305). The at least one main circuit breaker and the at least four transfer switches are arranged so as to enable to individually disconnect any one of the at least three sections of the HVDC power distribution network. In an embodiment of the invention, the transfer switches which usually are comprised in direct current (DC) hybrid circuit breakers are used as selector switches,thereby reducing the number of main breakers in the switchyard.
    • 提供高压直流(HVDC)开关站(300)。 开关站设置用于互连诸如传输线,转换器或任何其它类型的HVDC设备的HVDC电力网络的三个或更多个部分(310,320,330)。 开关机构包括至少一个主断路器(301)和至少四个转换开关(302-305)。 所述至少一个主断路器和所述至少四个转换开关被布置成能够独立地断开所述HVDC配电网络中的所述至少三个部分中的任何一个。 在本发明的一个实施例中,通常包括在直流(DC)混合断路器中的转换开关用作选择器开关,从而减少了开关站中的主断路器的数量。
    • 10. 发明申请
    • METHOD AND CONTROL DEVICE FOR CONTROLLING POWER FLOW WITHIN A DC POWER TRANSMISSION NETWORK
    • 这个控制功率流在网络电力传输方法和控制设备继续
    • WO2012000549A1
    • 2012-01-05
    • PCT/EP2010/059311
    • 2010-06-30
    • ABB Research LtdBERGGREN, BertilMAJUMDER, RajatSAO, CharlesLINDEN, Kerstin
    • BERGGREN, BertilMAJUMDER, RajatSAO, CharlesLINDEN, Kerstin
    • H02J3/36H02J1/10H02J1/14
    • G05F1/66H02J1/102H02J1/12H02J1/14H02J3/36Y02E60/60
    • 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.
    • 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。