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    • 1. 发明申请
    • TUNING A POWER OSCILLATION DAMPING UNIT
    • 调节功率振荡阻尼单元
    • WO2011061153A2
    • 2011-05-26
    • PCT/EP2010/067497
    • 2010-11-15
    • ABB Research LtdKORBA, PetrBERGGREN, BertilMAJUMDER, RajatRAY, Swakshar
    • KORBA, PetrBERGGREN, BertilMAJUMDER, RajatRAY, Swakshar
    • H02J3/24
    • H02J3/24
    • The invention is related to a method, power control device and computer program product for tuning a power oscillation damping unit (22; 26) in a power transmission system,. The power control device (10) includes a probing signal generating element (42) configured to generate at least one probing signal (PS) and send the probing signal into the power transmission system,a data extracting element (36) configured to receive probing signal responses (PSR1, PSR2, PSRn) from measurement units (12, 14, 16) placed in the power transmission system and a system parameter determining element (40) configured to determine system model parameters (SP1; SP2) of the power transmission system based on the probing signal and the probing signal responses and tune the power oscillation damping unit using the system model parameters.
    • 本发明涉及一种用于调谐动力传动系统中的功率振荡阻尼单元(22; 26)的方法,功率控制装置和计算机程序产品。 功率控制装置(10)包括被配置为产生至少一个探测信号(PS)并将探测信号发送到电力传输系统中的探测信号产生元件(42),数据提取元件(36),被配置为接收探测信号 放置在电力传输系统中的测量单元(12,14,16)的响应(PSR1,PSR2,PSRn)和系统参数确定元件(40)被配置为确定基于电力传输系统的系统模型参数(SP1; SP2) 探测信号和探测信号响应,并使用系统模型参数调整功率振荡阻尼单元。
    • 2. 发明申请
    • IMPROVED CONTROL OF A POWER TRANSMISSION SYSTEM
    • 改进电力传输系统的控制
    • WO2010142340A1
    • 2010-12-16
    • PCT/EP2009/057248
    • 2009-06-11
    • ABB RESEARCH LTDBERGGREN, BertilKORBA, PetrMAJUMDER, RajatRAY, Swakshar
    • BERGGREN, BertilKORBA, PetrMAJUMDER, RajatRAY, Swakshar
    • H02J3/24
    • H02J3/24
    • The invention provides improved control of a power transmission system having a first group of measurement units (10, 12, 14) in a first geographical area (A_1) providing a first set of phasors and a second group of measurement units (16, 18) in a second geographical area (A_2) providing a second set of phasors, where the phasors in the sets are generated at the same instant in time. In this system the power control device (32) includes a phasor aligning unit (30) that time aligns the first and second sets of phasors and a control unit (33) that compares each set of phasors with a corresponding phasor number threshold, determines that a first control condition is fulfilled if each phasor number threshold has been exceeded and enables the provision of a common signal if the first control condition is fulfilled. The common signal is based on the obtained phasors in the first and second sets.
    • 本发明提供了在提供第一组相量的第一地理区域(A_1)中具有第一组测量单元(10,12,14)和第二组测量单元(16,18)的电力传输系统的改进的控制, 在第二地理区域(A_2)中提供第二组相量,其中集合中的相量在相同时刻产生。 在该系统中,功率控制装置(32)包括时间对准第一和第二组相量的相量对准单元(30)和将每组相量与相应的相量数阈值进行比较的控制单元(33),确定 如果已经超过每个相量数阈值,则满足第一控制条件,并且如果满足第一控制条件则能够提供公共信号。 公共信号基于第一和第二组中获得的相量。
    • 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。
    • 5. 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。
    • 6. 发明申请
    • FAULT TOLERANT DAMPING OF ELECTROMECHANICAL OSCILLATIONS IN POWER SYSTEMS
    • 电力系统中电子振荡的容错阻尼
    • WO2011033044A2
    • 2011-03-24
    • PCT/EP2010/063658
    • 2010-09-17
    • ABB RESEARCH LTDKORBA, PetrBERGGREN, Bertil
    • KORBA, PetrBERGGREN, Bertil
    • H02J3/24
    • H02J3/24Y02E60/728Y04S10/265
    • A fault-tolerant method and system of controlling electromechanical oscillations in a power system. The system of controlling comprises at least one phasor measurement unit (58, 60, 62, 64) obtaining phasor data signals including oscillating mode signals, at least one wide area control system (66) receiving the phasor data signals from the phasor measurement unit, and at least one actuating device (80, 82, 84) for receiving a control signal from the wide area control system. Specifically, the wide area control system performs the fault tolerant control method of the present invention, wherein information about each critical oscillatory mode of an oscillation is extracted from a model, selected residues for each critical oscillatory mode are grouped together, and a partial damping controller is designed for each selected critical oscillatory mode using residues from the same group. A multivariate damping controller is produced and applied to one or more actuating devices in the power system to control electromechanical oscillations.
    • 控制电力系统中机电振荡的容错方法和系统。 控制系统包括至少一个相量测量单元(58,60,62,64),其获得包括振荡模式信号的相量数据信号,至少一个广域控制系统(66)从相量测量单元接收相量数据信号, 和用于从广域控制系统接收控制信号的至少一个致动装置(80,82,84)。 具体地,广域控制系统执行本发明的容错控制方法,其中从模型中提取关于振荡的每个关键振荡模式的信息,对于每个关键振荡模式的选择的残差被分组在一起,并且部分阻尼控制器 被设计用于使用来自同一组的残留物的每个选定的关键振荡模式。 产生多变量阻尼控制器并将其应用于电力系统中的一个或多个致动装置以控制机电振荡。
    • 7. 发明申请
    • DETERMINATION AND USE OF POWER SYSTEM SENSITIVITIES FOR POWER FLOW CONTROL
    • 电力系统敏感性的动力流量控制的确定和使用
    • WO2008040713A1
    • 2008-04-10
    • PCT/EP2007/060412
    • 2007-10-02
    • ABB Research LtdBERGGREN, BertilLARSSON, MatsBENGTSSON, TordKORBA, PetrOUDALOV, Alexander
    • BERGGREN, BertilLARSSON, MatsBENGTSSON, TordKORBA, PetrOUDALOV, Alexander
    • H02J3/24
    • H02J3/24H02J3/005Y02E60/728Y04S10/265
    • The present invention is concerned with the computation of power system sensitivities from power flow parameters and control parameters of a Power Flow Control Device (PFC). To this end, control parameter variations are applied to or generated by a PFC (20), and comprise variations in a control input u, a control effort e (injected series voltage, inserted series reactance), or a control effect q (power flow, active power transfer, phase-shift, current). A power flow response measuring unit (40) measures a variation of a power flow response such as current, active or apparent power, in a way sufficiently synchronized with the control parameter variation to allow establishing an unambiguous causal relationship or correspondence in the form of a power system sensitivity. The latter may be on-line adapted to continuously reflect an updated aspect of the power system behaviour, and thus enable an improved, fast and reliable power flow control in power systems comprising a meshed power network with two parallel flow paths or corridors connecting two areas or sub-systems.
    • 本发明涉及从功率流量参数和功率流量控制装置(PFC)的控制参数的功率系统灵敏度的计算。 为此,控制参数变化应用于PFC(20)或由PFC(20)产生,并且包括控制输入u,控制力e(注入的串联电压,插入的串联电抗)或控制效应q(功率流) ,有功功率传输,相移,电流)。 功率流响应测量单元(40)以与控制参数变化充分同步的方式测量功率流响应(例如电流,有功或视在功率)的变化,以允许建立明确的因果关系或以 电力系统灵敏度。 后者可以在线适应以连续反映电力系统行为的更新方面,并且因此能够在电力系统中实现改进的,快速和可靠的功率流控制,其包括具有两个平行流动路径的网状电力网络或连接两个区域的走廊 或子系统。
    • 10. 发明申请
    • BREAKER FAILURE PROTECTION OF HVDC CIRCUIT BREAKERS
    • 断路器故障保护高压直流断路器
    • WO2011157306A1
    • 2011-12-22
    • PCT/EP2010/063377
    • 2010-09-13
    • ABB RESEARCH LTDBERGGREN, BertilWANG, JianpingPAN, JuipingLINDEN, KerstinNUQUI, Reynaldo
    • BERGGREN, BertilWANG, JianpingPAN, JuipingLINDEN, KerstinNUQUI, Reynaldo
    • H02H7/26H02H3/44H02H7/30
    • H02H7/268H02H3/044H02H3/05H02H3/445H02H7/222H02H7/30
    • 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.
    • 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。