会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明申请
    • A SYSTEM FOR GROUND FAULT DETECTION IN A GENERATOR
    • 发电机接地故障检测系统
    • WO2010069739A1
    • 2010-06-24
    • PCT/EP2009/066027
    • 2009-11-30
    • ABB Research LtdROXENBORG, StefanTHORBURN, StefanBENGTSSON, TordGAJIC, ZoranJOHANSSON, Henrik
    • ROXENBORG, StefanTHORBURN, StefanBENGTSSON, TordGAJIC, ZoranJOHANSSON, Henrik
    • G01R27/18G01R31/02G01R31/06G01R31/34G05B9/03
    • G01R27/18G01R31/025G01R31/343G01R31/346H02H3/05H02H3/17H02H7/06
    • The present invention relates to a ground fault detection system for a generator (1 ) in a power system, wherein the generator comprises at least one electrical circuit (10, 10'). The ground fault detection system comprises a first signal injection unit (8) configured to inject a first test signal (t 1 ) at a first frequency (f 1 ) into the electrical circuit (10), a first measuring unit (7) configured to measure electrical quantities (U 1 , I 1 ) in the electrical circuit resulting from the first test signal, a first processing unit (9) configured to receive said measured electrical quantities resulting from the first test signal and calculate a first electrical parameter (Z 1 ) based on the measured electrical quantities in order to determine if there is a ground fault, a second signal injection unit (8') configured to inject a second test signal (t 2 ) at a second frequency (f 2 ) into the electrical circuit (10'), a second measuring unit (7') configured to measure electrical quantities (U 2 , I 2 ) in the electrical circuit resulting from the second test signal, and a second processing unit (9') configured to receive said measured electrical quantities resulting (U 2 , I 2 ) from the second test signal and calculate a second electrical parameter (Z 2 ) based on the measured electrical quantities in order to determine if there is a ground fault. The invention is characterized by the first processing unit further configured to send the first calculated electrical parameter to the second processing unit, the second processing unit configured, upon receiving the first calculated electrical parameter sent by the first processing unit, to compare the first calculated electrical parameter and the second calculated electrical parameter to determine if there is a ground fault, and if the deviation exceeds a selected criterion an alarm ( Alarm 1 ) may arise, equally, the second processing unit further configured to send the second calculated electrical parameter to the first processing unit, and the first processing unit configured, upon receiving the second calculated electrical parameter sent by the second processing unit, to compare the first calculated electrical parameter and the second calculated electrical parameter to determine whether there is a ground fault, and if the deviation exceeds a selected criterion an alarm ( Alarm 2 ) may arise.
    • 本发明涉及一种用于电力系统中的发电机(1)的接地故障检测系统,其中发电机包括至少一个电路(10,10')。 接地故障检测系统包括被配置为将第一频率(f1)的第一测试信号(t1)注入到电路(10)中的第一信号注入单元(8),被配置为测量电气 由第一测试信号产生的电路中的数量(U1,I1);第一处理单元(9),被配置为接收由第一测试信号产生的所测量的电量,并且基于测量的 电量以确定是否存在接地故障,第二信号注入单元(8')被配置为将第二频率(f2)的第二测试信号(t2)注入到电路(10')中,第二信号注入单元 测量单元(7'),其被配置为测量由所述第二测试信号产生的所述电路中的电量(U2,I2);以及第二处理单元(9'),被配置为接收从所述第二测试信号 第二测试信号,并且基于测量的电量计算第二电参数(Z2),以便确定是否存在接地故障。 本发明的特征在于,第一处理单元还被配置为将第一计算的电参数发送到第二处理单元,第二处理单元在接收到由第一处理单元发送的第一计算电参数时配置,以比较第一计算电 参数和第二计算电参数以确定是否存在接地故障,并且如果偏差超过所选择的标准,则可能出现报警(报警1),同样地,第二处理单元还被配置为将第二计算的电参数发送到 第一处理单元和第一处理单元,其被配置为在接收到由第二处理单元发送的第二计算电参数时,比较第一计算电参数和第二计算电参数以确定是否存在接地故障,并且如果 偏差超过所选标准报警(报警2) 可能会出现
    • 2. 发明申请
    • ARRANGEMENT AND METHOD FOR DETERMINING AN ELECTRICAL FEATURE
    • 用于确定电气特征的布置和方法
    • WO2008077955A1
    • 2008-07-03
    • PCT/EP2007/064492
    • 2007-12-21
    • ABB RESEARCH LTDBENGTSSON, TordTHORBURN, Stefan
    • BENGTSSON, TordTHORBURN, Stefan
    • G01R27/16
    • G01R27/16
    • Arrangement to determine at least one electrical feature of an electrical device (1). The arrangement comprising a signal injection unit (8) configured to inject a first test signal (t 1 ) at a first main frequency (f 1 ) into a first electric circuit (10), and to inject a second test signal (t 2 ) at a second main frequency (f 2 ) into the first electric circuit (10) or into a second electric circuit (30), a signal conversion unit (7) configured to measure a first and a second electrical quantity in the first electrical circuit resulting from the first test signal (t 1 ), and to measure the first and second electrical quantity in the first (10) or second electric circuit (30) resulting from the second test signal (t 2 ),and a processing device (18) including at least two analogue input channels (16,17) configured to receive the measured electrical quantities and to determine the electrical feature based on the measured electrical quantities, a mixing unit (13) configured to add the measurements (U 1 ,U 2 ) of the first electrical quantity from the first and second testsignals and based thereon generate a first mixed signal, to add the measurements (I 1 ,I 2 ) of the second electrical quantity from the first and second test signals and based thereon generate a second mixed signal, to supply the first mixed signal to a firstinput channel of the processing device and to supply the second mixed signal to a second input channel of the processing device. The processing device is configured to decompose the mixed signals to obtain the measurements of the first and second electrical quantities.
    • 用于确定电气设备(1)的至少一个电气特征的布置。 该装置包括信号注入单元(8),其被配置为将第一主频率(f 1> 1)的第一测试信号(t 1> 1)注入到第一电路 10),并且将第二主频(f 2> 2)的第二测试信号(t 2> 2)注入到第一电路(10)中,或者将第二测试信号 电路(30),信号转换单元(7),被配置为测量由第一测试信号(t 1> 1)产生的第一电路中的第一和第二电量,并且测量第一 以及由第二测试信号(t 2> 2)产生的第一电路(10)或第二电路(30)中的第二电量以及包括至少两个模拟输入通道( 16,17),被配置为接收所测量的电量并且基于所测量的电量来确定电气特征;混合单元(13),被配置为将测量值(U 1, 并且基于该第一和第二检测信号产生第一混合信号,以将测量结果(I 1, ),并且基于所述第二混合信号产生第二混合信号,以将所述第一混合信号提供给所述处理装置的第一输入信道,并将所述第二混合信号提供给所述第二混合信号的第二输入信道 处理装置。 处理装置被配置为分解混合信号以获得第一和第二电量的测量。
    • 3. 发明申请
    • A METHOD AND A DEVICE FOR SUPERVISING THE SENSITIVITY OF A PROTECTION FUNCTION
    • 一种用于监控保护功能灵敏度的方法和装置
    • WO2010121660A1
    • 2010-10-28
    • PCT/EP2009/054971
    • 2009-04-24
    • ABB RESEARCH LTDTHORBURN, StefanJOHANSSON, HenrikROXENBORG, StefanBENGTSSON, Tord
    • THORBURN, StefanJOHANSSON, HenrikROXENBORG, StefanBENGTSSON, Tord
    • H02H3/00H02H3/04
    • H02H3/006H02H3/044
    • The present invention relates to a method and a device for supervising the sensitivity of a protection function in an electrical power system comprising a metering device for measuring values of a feature, said protection function being configured to initialize an action based on a test value and a threshold value for the feature, wherein said test value is either a measured value or derived from the said measured values, the device (9) comprising a computing unit (3) configured to receive the test values and, repeatedly during the operation of the protection function, to calculate a mean value and a deviation of the test values, to determine the probability of a false action based on the calculated mean value, the threshold value and the calculated deviation, and to indicate that the sensitivity is too high when the probability of a false action exceeds a first limit value for the probability of a false action.
    • 本发明涉及一种用于监控电力系统中的保护功能的灵敏度的方法和装置,包括用于测量特征值的计量装置,所述保护功能被配置为基于测试值初始化动作,以及 所述特征的阈值,其中所述测试值是测量值或从所述测量值导出,所述设备(9)包括被配置为接收测试值的计算单元(3),并且在所述保护操作期间重复 函数,以计算测试值的平均值和偏差,以基于所计算的平均值,阈值和计算的偏差来确定误动作的概率,并且当概率为高时,表示灵敏度太高 的虚假动作超过了错误行为的概率的第一个限制值。
    • 5. 发明申请
    • AN INDUCTION REGULATOR AND USE OF SUCH REGULATOR
    • 电感调节器和这种调节器的使用
    • WO2008073034A1
    • 2008-06-19
    • PCT/SE2007/050916
    • 2007-11-29
    • ABB RESEARCH LTDTHORBURN, StefanRUSSBERG, GunnarDAHLGREN, Michael
    • THORBURN, StefanRUSSBERG, GunnarDAHLGREN, Michael
    • H02J3/06H01F29/08
    • H01F29/12H02J3/06H02J3/1885Y02E40/32
    • An inductor regulator (50) for controlling the active and/ or reactive power flow in a three-phase electric transmission network (30,40), which for each phase comprises a first stator winding (60a, 60b, 60c) and a second stator winding 61a, 61b, 61c) separated from each other and electrically connected in series, and for each first and second stator winding comprises a first rotor winding (70a, 70b, 70c} and second rotor winding (71a, 71b, 71c) opposing said first and second stator windings and forming magnetic circuits via air gaps between respective stator windings and rotor windings. The first (60a, 60b, 60c) and second (61a, 61b, 61c) rotor windings for each phase are connected in series to give a rotating flux in the first 70a, 70b, 70c) and second (71a, 71b, 71c) rotor windings having different rotating direction in relation to the rotor axis (210, 210a).
    • 一种用于控制三相电力传输网络(30,40)中的有功和/或无功功率流的电感器调节器(50,40),其针对每相包括第一定子绕组(60a,60b,60c)和第二定子 绕组61a,61b,61c)彼此分离并串联电连接,并且对于每个第一和第二定子绕组包括与所述第一和第二定子绕组相对的第一转子绕组(70a,70b,70c)和第二转子绕组(71a,71b,71c) 第一和第二定子绕组,并通过相应的定子绕组和转子绕组之间的气隙形成磁路,每相的第一(60a,60b,60c)和第二(61a,61b,61c)转子绕组串联连接, 具有相对于转子轴线(210,210a)具有不同旋转方向的第一(70a,70b,70c)和第二(71a,71b,71c)转子绕组。
    • 9. 发明申请
    • ELECTRICITY GENERATION SYSTEM
    • 电力发电系统
    • WO2010034641A1
    • 2010-04-01
    • PCT/EP2009/061883
    • 2009-09-14
    • ABB RESEARCH LTDDAHLGREN, MikaelRUSSBERG, GunnarTHORBURN, Stefan
    • DAHLGREN, MikaelRUSSBERG, GunnarTHORBURN, Stefan
    • H01L37/04
    • H01L37/04Y02E10/34Y10T307/642
    • An electricity generation system (11) comprises a low frequency alternating heat and cold distribution system (12) provided for alternately distributing heat and cold at low frequency; a heat-electricity conversion system (13) operatively connected to the low frequency alternating heat and cold distribution system and provided for generating electricity in response to the alternately distributed heat and cold; an electric power delivery system (14) operatively connected to the heat- electricity conversion system and provided for distributing the generated electricity; and a process control system (15) operatively connected to the low frequency alternating heat and cold distribution system, to the heat-electricity conversion system, and to the electric power delivery system in order to control the operations thereof.
    • 发电系统(11)包括:低频交替冷热分配系统(12),用于低频交替分配热和冷; 一个热电转换系统(13),可操作地连接到低频交替的热和冷分配系统,并被提供用于响应于交替分布的热和冷发电; 电力输送系统(14),其可操作地连接到所述热电转换系统并且用于分配所产生的电力; 以及可操作地连接到所述低频交替冷热分配系统的过程控制系统(15),所述热电转换系统以及所述电力输送系统以控制其运行。
    • 10. 发明申请
    • DEVICE AND METHOD FOR CONVERTING ENERGY
    • 用于转换能量的装置和方法
    • WO2008116785A1
    • 2008-10-02
    • PCT/EP2008/053208
    • 2008-03-18
    • ABB RESEARCH LTDRUSSBERG, GunnarDAHLGREN, MikaelTHORBURN, Stefan
    • RUSSBERG, GunnarDAHLGREN, MikaelTHORBURN, Stefan
    • H01L37/04
    • H01L37/04
    • A device for transforming thermal energy to electric energy comprises a magnetic circuit (1) including at least a portion (3) made of a magnetic material; temperature-varying means (5) for varying the temperature in the portion made of the magnetic material alternately above and below a phase transition temperature of the magnetic material to thereby vary the reluctance of the magnetic circuit; and a coil (7) arranged around the magnetic circuit, in which electric energy is induced in response to a varying magnetic flux in the magnetic circuit. The device comprises a capacitor (9) connected in parallel with the coil to thereby form a resonant circuit (11), wherein the resonance frequency of the resonant circuit and the frequency of the temperature variation above and below the phase transition temperature of the magnetic material are dependent on one another to optimize the electric power output.
    • 用于将热能转换成电能的装置包括至少包括由磁性材料制成的部分(3)的磁路(1) 温度变化装置(5),用于在磁性材料的相变温度之上交替地改变由磁性材料制成的部分中的温度,从而改变磁路的磁阻; 以及围绕磁路布置的线圈(7),其中响应于磁路中的变化的磁通量而感应出电能。 该装置包括与线圈并联连接的电容器(9),从而形成谐振电路(11),其中谐振电路的谐振频率和温度变化频率高于和低于磁性材料的相变温度 相互依赖以优化电力输出。