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1. 发明申请

US20110012586A1 METHOD FOR DETECTING, IDENTIFYING AND LOCATING PARTIAL DISCHARGES OCCURRING IN A DISCHARGE SITE ALONG AN ELECTRIC APPARATUS 有权
标题翻译：用于检测，识别和定位在电气设备放电场中发生的部分放电的方法
公开(公告)号：US20110012586A1
公开(公告)日：2011-01-20
申请号：US12670064
申请日：2008-01-31
申请人： Gian Carlo Montanari , Andrea Cavallini , Gaetano Pasini
发明人： Gian Carlo Montanari , Andrea Cavallini , Gaetano Pasini
IPC分类号： G01R25/00
CPC分类号： G01R31/1272
摘要： A method for detecting, identifying and locating partial discharges occurring in a discharge site along an electric apparatus comprises the following steps: detecting (1) electrical signals in a detection station; attributing (2) to each detected signal a value of a phase parameter; deriving (3) for each signal at least one shape parameter and one amplitude parameter; separating (4) the set of signals detected into sub sets that are homogeneous relative to the shape parameter; identifying (5) sub-sets related to partial discharges and cataloguing them; repeating the above steps in a plurality of detection stations positioned along the apparatus; correlating (7) the sub-sets of signals detected in different detection stations and catalogued similarly; selecting (8) as a function of the amplitude and shape parameters of a sub-set among the correlated ones and locating (9) the partial discharges related to said sub-sets at the detection station of the selected sub-set. Known methods have poor effectiveness and/or reliability, especially for cables whose length exceeds 1-2 km or, alternatively, they require an excessively complex and costly field implementation.
摘要翻译：一种用于检测，识别和定位沿着电气设备的排放位置发生的局部放电的方法，包括以下步骤：检测（1）检测站中的电信号; 将每个检测到的信号归因于（2）相位参数的值; 为每个信号导出（3）至少一个形状参数和一个幅度参数; 将（4）检测到的信号集合相对于形状参数是均匀的; 识别（5）与部分放电相关的子集并对其进行编目; 在沿着设备定位的多个检测站中重复上述步骤; 关联（7）在不同检测站中检测到的信号子集，并类似地编目; 根据相关的子集中的子集的幅度和形状参数来选择（8）并定位（9）与所选子集的检测站处的所述子集相关的局部放电。已知方法的有效性和/或可靠性差，特别是对于长度超过1-2公里的电缆，或者它们需要过于复杂和昂贵的现场实施。

2. 发明授权

US08447540B2 Method for detecting, identifying and locating partial discharges occurring in a discharge site along an electric apparatus 有权
标题翻译：用于检测，识别和定位沿着电气设备在排放部位发生的局部放电的方法
公开(公告)号：US08447540B2
公开(公告)日：2013-05-21
申请号：US12670064
申请日：2008-01-31
申请人： Gian Carlo Montanari , Andrea Cavallini , Gaetano Pasini
发明人： Gian Carlo Montanari , Andrea Cavallini , Gaetano Pasini
IPC分类号： G01R31/00
CPC分类号： G01R31/1272
摘要： A method for detecting, identifying and locating partial discharges occurring in a discharge site along an electric apparatus comprises the following steps: detecting (1) electrical signals in a detection station; attributing (2) to each detected signal a value of a phase parameter; deriving (3) for each signal at least one shape parameter and one amplitude parameter; separating (4) the set of signals detected into sub sets that are homogeneous relative to the shape parameter; identifying (5) sub-sets related to partial discharges and cataloguing them; repeating the above steps in a plurality of detection stations positioned along the apparatus; correlating (7) the sub-sets of signals detected in different detection stations and catalogued similarly; selecting (8) as a function of the amplitude and shape parameters of a sub-set among the correlated ones and locating (9) the partial discharges related to said sub-sets at the detection station of the selected sub-set. Known methods have poor effectiveness and/or reliability, especially for cables whose length exceeds 1-2 km or, alternatively, they require an excessively complex and costly field implementation.
摘要翻译：一种用于检测，识别和定位沿着电气设备的排放位置发生的局部放电的方法，包括以下步骤：检测（1）检测站中的电信号; 将每个检测到的信号归因于（2）相位参数的值; 为每个信号导出（3）至少一个形状参数和一个幅度参数; 将（4）检测到的信号集合相对于形状参数是均匀的; 识别（5）与部分放电相关的子集并对其进行编目; 在沿着设备定位的多个检测站中重复上述步骤; 关联（7）在不同检测站中检测到的信号子集，并类似地编目; 根据相关的子集中的子集的幅度和形状参数来选择（8）并定位（9）与所选子集的检测站处的所述子集相关的局部放电。已知方法的有效性和/或可靠性差，特别是对于长度超过1-2公里的电缆，或者它们需要过于复杂和昂贵的现场实施。

3. 发明申请

US20120290229A1 DIAGNOSTIC METHOD AND APPARATUS FOR ASSESSING THE INSULATION CONDITION OF ELECTRICAL EQUIPMENT INSULATED WITH OIL 审中-公开
标题翻译：用于评估绝缘电绝缘条件的诊断方法和装置
公开(公告)号：US20120290229A1
公开(公告)日：2012-11-15
申请号：US13519528
申请日：2011-01-10
申请人： Andrea Cavallini , Fabio Ciani , Stefano Serra , Gian Carlo Montanari
发明人： Andrea Cavallini , Fabio Ciani , Stefano Serra , Gian Carlo Montanari
IPC分类号： G01R31/12 , G06F19/00
CPC分类号： G01R31/1281 , G01N33/2841 , G01R31/14
摘要： A diagnostic method and apparatus for assessing the insulation condition of electrical equipment (3) insulated with oil (2). The method comprises the following steps: measuring the concentration of at least one gas dissolved in the insulating oil (2) of the electrical equipment (3); deriving at least one concentration parameter correlated with the gas concentration measured in a predetermined acquisition time interval; measuring electrical pulses relating to partial electrical discharges which occur in the electrical equipment (3) and which generate said pulses; deriving at least one discharge parameter correlated with the partial discharges measured substantially concurrently with the predetermined acquisition time interval; deriving a diagnostic indication about the insulation condition of the electrical equipment (3) as a function of the derived values of the concentration and discharge parameters.
摘要翻译：用于评估用油（2）绝缘的电气设备（3）的绝缘条件的诊断方法和装置。该方法包括以下步骤：测量溶解在电气设备（3）的绝缘油（2）中的至少一种气体的浓度; 导出与在预定采集时间间隔中测量的气体浓度相关的至少一个浓度参数; 测量与电气设备（3）中发生的并且产生所述脉冲的部分放电有关的电脉冲; 得出与预定采集时间间隔基本同时测量的部分放电相关的至少一个放电参数; 根据浓度和排出参数的导出值，得出关于电气设备（3）的绝缘状况的诊断指示。

4. 发明申请

US20120022810A1 DEVICE AND METHOD FOR LOCATING PARTIAL DISCHARGES 有权
标题翻译：用于定位部分放电的装置和方法
公开(公告)号：US20120022810A1
公开(公告)日：2012-01-26
申请号：US13259978
申请日：2010-03-24
申请人： Stefano Serra , Andrea Cavallini , Gian Carlo Montanari , Gaetano Pasini
发明人： Stefano Serra , Andrea Cavallini , Gian Carlo Montanari , Gaetano Pasini
IPC分类号： G01R31/08 , G06F19/00
CPC分类号： G01R31/1272 , G01R31/08 , G01R31/14
摘要： A method for locating partial discharges occurring at a discharge site (2) in an electric apparatus (3) with elongate geometry and generating corresponding electric pulses (4) propagating in opposite directions along the apparatus (3) from the discharge site (2) comprises the steps: (11) of detecting the pulses (4) picked up by a first and a second sensor (5, 7), connected to the apparatus (3) and spaced out along the same; (15) of deriving shape, phase and amplitude parameters for each of the signals detected; (17) of separating the sets of signals detected in each sensor into respective subsets which are uniform in terms of pulse waveform; (18) of identifying the subsets of signals relating to partial discharges and classifying them; (19) of correlating the subsets relating to different sensors and similarly classified, in order to derive a pair of subsets of signals relating to the same discharge site (2); (12) of selecting, for the pair of correlated subsets, at least one pair of homologous pulses (4) detected in different sensors in the same time interval; and (13) of calculating the distance between the discharge site (2) and the sensors, based on the selected pair of homologous pulses (4).
摘要翻译：一种用于定位在具有细长几何形状的电气设备（3）中的放电部位（2）处发生的局部放电的方法，并且产生沿着装置（3）从放电部位（2）沿相反方向传播的对应电脉冲（4），包括检测由第一和第二传感器（5,7）拾取的脉冲（4）的步骤：（11），连接到设备（3）并沿其间隔开; （15）为检测到的每个信号导出形状，相位和幅度参数; （17），将在每个传感器中检测到的信号组分成在脉冲波形方面是均匀的相应子集; （18）识别与部分放电有关的信号子集并进行分类; （19）将与不同传感器相关的子集相关并且类似地分类，以便导出与同一排放位点（2）有关的一对信号子集; （12）为所述一对相关子集选择在相同时间间隔内在不同传感器中检测到的至少一对同源脉冲（4）; 和（13）基于所选择的一对同源脉冲（4）来计算放电部位（2）和传感器之间的距离。

5. 发明授权

US08527221B2 Method and an apparatus for monitoring an activity of partial electrical discharges in an electrical apparatus powered with direct voltage 有权
标题翻译：用于监视由直流电驱动的电气设备中的部分放电活动的方法和装置
公开(公告)号：US08527221B2
公开(公告)日：2013-09-03
申请号：US12670081
申请日：2008-01-29
申请人： Gian Carlo Montanari , Andrea Cavallini , Gaetano Pasini
发明人： Gian Carlo Montanari , Andrea Cavallini , Gaetano Pasini
IPC分类号： G01R31/00 , A41F1/00 , A41F1/08 , A44B1/04 , A44B11/25 , A44B17/00 , B42F1/00 , B42F1/02
CPC分类号： G01R31/1272
摘要： A method for monitoring an activity of partial electrical discharges in an electric apparatus powered with direct voltage comprises the following steps, repeated in succession at predetermined time intervals: measuring (1) analogue electrical signals and generating corresponding digital signals representative of the wave form of partial discharge impulses; deriving (2) for each of said digital signals, at least one shape parameter and at least one amplitude parameter; separating (3) the set of the measured data into homogeneous sub-sets with respect to the shape parameter; correlating (4) the sub-sets of signals having similar values of the shape parameter and measured in successive steps; selecting (5) the correlated sub-sets for which the amplitude parameter has a predetermined profile over time and attributing the signals of said subsets to partial discharge activities. The methods currently in use do not allow to monitor partial discharge activities in an apparatus in DC, because they do not allow to distinguish the signals relating to the partial discharges from those relating to noise or to disturbances.
摘要翻译：用于监视由直流电驱动的电气设备中的部分放电的活动性的方法包括以下步骤，以预定的时间间隔连续重复：测量（1）模拟电信号并产生代表部分波形的相应数字信号放电脉冲为每个所述数字信号导出（2）至少一个形状参数和至少一个振幅参数; 将所述测量数据的集合相对于所述形状参数分离（3）为均匀子集; 将（4）具有相似的形状参数值并且在连续步骤中测量的信号子集合; 选择（5）随着时间的推移，幅度参数具有预定轮廓的相关子集，并将所述子集的信号归因于局部放电活动。目前使用的方法不允许在DC设备中监测局部放电活动，因为它们不允许将与部分放电有关的信号与与噪声或干扰有关的信号区分开。

6. 发明申请

US20120022809A1 DEVICE AND METHOD FOR LOCATING PARTIAL DISCHARGES 有权
标题翻译：用于定位部分放电的装置和方法
公开(公告)号：US20120022809A1
公开(公告)日：2012-01-26
申请号：US13258335
申请日：2010-03-18
申请人： Stefano Serra , Andrea Cavallini , Gian Carlo Montanari , Gaetano Pasini
发明人： Stefano Serra , Andrea Cavallini , Gian Carlo Montanari , Gaetano Pasini
IPC分类号： G01R31/08 , G06F19/00
CPC分类号： G01R31/08 , G01R31/088 , G01R31/1272
摘要： A method for locating partial discharges occurring at a discharge site (2) in an electric apparatus (3) with elongate geometry and generating corresponding electric pulses (4) propagating in opposite directions along the apparatus (3) from the discharge site (2) comprises the steps of detecting (11) the electric pulses (4) picked up by a first and a second sensor (5, 7), operatively connected to the apparatus (3) and spaced out along it, and generating corresponding electric signals representative of the waveform of the pulses (4), selecting (12) at least one pair of signals, detected in the consecutive sensors (5, 7), and representative of a pair of homologous pulses (4), relating to the same partial discharge and propagating in opposite directions along the apparatus, deriving, for the signals of the selected pair of homologous pulses (4), at least one attenuation parameter, correlated with a quantity that is variable depending on the distance travelled by the pulses (4), calculating (13) the distance between the discharge site (2) and the sensors, based on processing the values of the attenuation parameter for the signals of the selected pair of homologous pulses (4).
摘要翻译：一种用于定位在具有细长几何形状的电气设备（3）中的放电部位（2）处发生的局部放电的方法，并且产生沿着装置（3）从放电部位（2）沿相反方向传播的对应电脉冲（4），包括检测（11）由第一和第二传感器（5,7）拾取的电脉冲（4）的步骤，可操作地连接到装置（3）并沿其间隔开，并产生代表脉冲（4）的波形，选择（12）在连续传感器（5,7）中检测到的至少一对信号，并代表一对同源脉冲（4），涉及相同的局部放电和传播沿着装置的相反方向，导出所选择的同步脉冲对（4）的信号，至少一个与根据脉冲（4）行进的距离可变的量相关的衰减参数，计算（13）基于对所选择的同源脉冲（4）的信号的衰减参数的值进行处理，排出部位（2）和传感器之间的距离。

7. 发明授权

US08055459B2 Instrument and method for measuring partial electrical discharges in an electrical system 有权
标题翻译：用于测量电气系统中部分放电的仪器和方法
公开(公告)号：US08055459B2
公开(公告)日：2011-11-08
申请号：US12304410
申请日：2007-04-11
申请人： Gian Carlo Montanari , Gaetano Pasini , Fabiano Bettio , Andrea Cavallini , Francesco Puletti , Dario Andreani
发明人： Gian Carlo Montanari , Gaetano Pasini , Fabiano Bettio , Andrea Cavallini , Francesco Puletti , Dario Andreani
IPC分类号： G01R29/00 , G01R31/00 , G06F19/00 , G06F17/40
CPC分类号： G01R31/1227 , G01R19/2513
摘要： An instrument (1) and a method for measuring pulses of partial electrical discharges in an electrical system comprise data processing means (5) operatively associated both with an input stage (2), able to receive an analogue signal (3) representing said pulses and to provide a digital representation of the entire wave form of the pulses, to receive said digital representation, extract the value of predetermined parameters relating to the wave form of the pulses and transfer to and output stage (4) a processed digital signal comprising said values, the processing means (5) being able to operate substantially in real time, i.e. with no need for a memory for the intermediate storage of the data. Known solutions within the field of the measurement of partial discharge pulses for diagnostic purposes provide for the use of peak detector instruments, which are not able to measure all information useful for a diagnosis of the electrical system, and oscilloscopes interacting with a computer, disadvantageous in terms of costs and of calculation efficiency.
摘要翻译：仪器（1）和用于测量电气系统中的部分放电脉冲的方法包括可操作地与输入级（2）相关联的数据处理装置（5），能够接收表示所述脉冲的模拟信号（3）为了提供脉冲的整个波形形式的数字表示，以接收所述数字表示，提取与脉冲波形有关的预定参数的值，并传送到并输出级（4）包括所述值的经处理的数字信号，处理装置（5）能够基本上实时地操作，即不需要用于数据的中间存储的存储器。在用于诊断目的的局部放电脉冲测量领域内的已知解决方案提供使用峰值检测器仪器，其不能测量用于诊断电气系统的所有信息，以及与计算机相互作用的示波器，不利地成本条件和计算效率。

8. 发明申请

US20100191486A1 METHOD AND AN APPARATUS FOR MONITORING AN ACTIVITY OF PARTIAL ELECTRICAL DISCHARGES IN AN ELECTRICAL APPARATUS POWERED WITH DIRECT VOLTAGE 有权
标题翻译：用于监测直接电压电气设备中部分电气放电活动的方法和装置
公开(公告)号：US20100191486A1
公开(公告)日：2010-07-29
申请号：US12670081
申请日：2008-01-29
申请人： Gian Carlo Montanari , Andrea Cavallini , Gaetano Pasini
发明人： Gian Carlo Montanari , Andrea Cavallini , Gaetano Pasini
IPC分类号： G01R31/02 , G06F19/00
CPC分类号： G01R31/1272
摘要： A method for monitoring an activity of partial electrical discharges in an electric apparatus powered with direct voltage comprises the following steps, repeated in succession at predetermined time intervals: measuring (1) analogue electrical signals and generating corresponding digital signals representative of the wave form of partial discharge impulses; deriving (2) for each of said digital signals, at least one shape parameter and at least one amplitude parameter; separating (3) the set of the measured data into homogeneous sub-sets with respect to the shape parameter; correlating (4) the sub-sets of signals having similar values of the shape parameter and measured in successive steps; selecting (5) the correlated sub-sets for which the amplitude parameter has a predetermined profile over time and attributing the signals of said subsets to partial discharge activities. The methods currently in use do not allow to monitor partial discharge activities in an apparatus in DC, because they do not allow to distinguish the signals relating to the partial discharges from those relating to noise or to disturbances.
摘要翻译：用于监视由直流电驱动的电气设备中的部分放电的活动性的方法包括以下步骤，以预定的时间间隔连续重复：测量（1）模拟电信号并产生代表部分波形的相应数字信号放电脉冲为每个所述数字信号导出（2）至少一个形状参数和至少一个振幅参数; 将所述测量数据的集合相对于所述形状参数分离（3）为均匀子集; 将（4）具有相似的形状参数值并且在连续步骤中测量的信号子集合; 选择（5）随着时间的推移，幅度参数具有预定轮廓的相关子集，并将所述子集的信号归因于局部放电活动。目前使用的方法不允许在DC设备中监测局部放电活动，因为它们不允许将与部分放电有关的信号与与噪声或干扰有关的信号区分开。

9. 发明授权

US09037438B2 Device and method for detecting and processing signals relating to partial electrical discharges 有权
标题翻译：用于检测和处理与部分放电有关的信号的装置和方法
公开(公告)号：US09037438B2
公开(公告)日：2015-05-19
申请号：US13503949
申请日：2010-10-29
申请人： Andrea Cavallini , Davide Fabiani , Gian Carlo Montanari
发明人： Andrea Cavallini , Davide Fabiani , Gian Carlo Montanari
IPC分类号： G06F15/00 , G01R31/14 , G01R31/12 , G01R15/14
CPC分类号： G01R31/14 , G01R15/142 , G01R31/12
摘要： A device (1) for detecting and processing signals relating to partial electrical discharges in an electrical apparatus (2) powered by a square-wave (3) voltage modulated by a modulating wave (4) in such a way as to form an alternating voltage of predetermined frequency, comprises: a sensor (5) connectable to the apparatus (2) for detecting a discharge signal (6) representing the electrical pulses generated by the partial discharges; a processing unit (7) connected to the sensor (5) to receive the discharge signal (6) and derive the detection instants of each of the pulses detected with respect to a predetermined time reference, a synchronization module (8) designed to receive an electrical signal (9) representing the power supply voltage and equipped with a filter (10) configured for extracting from said power supply signal (9) a signal (11) representing the modulating wave (4), the processing unit (7) being configured for associating with the pulses detected the values of a phase parameter (f) representing the phase of the modulating wave (4) at the pulse detection instants.
摘要翻译：一种用于检测和处理由由调制波（4）调制的方波（3）电压供电的电气设备（2）中与部分放电有关的信号的装置（1），以便形成交流电压包括：可连接到所述装置（2）的传感器（5），用于检测表示由所述局部放电产生的电脉冲的放电信号（6）; 连接到传感器（5）以接收放电信号（6）并导出相对于预定时间基准检测到的每个脉冲的检测时刻的处理单元（7），设计成接收表示电源电压的电信号（9），并配备有用于从所述电源信号（9）提取表示调制波（4）的信号（11）的滤波器（10），所述处理单元（7）被配置用于与所检测到的脉冲相关联的脉冲检测时刻的表示调制波（4）的相位的相位参数（f）的值。

10. 发明授权

US08467982B2 Device and method for locating partial discharges 有权
标题翻译：用于定位局部放电的装置和方法
公开(公告)号：US08467982B2
公开(公告)日：2013-06-18
申请号：US13259978
申请日：2010-03-24
申请人： Stefano Serra , Andrea Cavallini , Gian Carlo Montanari , Gaetano Pasini
发明人： Stefano Serra , Andrea Cavallini , Gian Carlo Montanari , Gaetano Pasini
IPC分类号： G01R31/00 , G01R31/08 , G01R31/12 , H01H9/50
CPC分类号： G01R31/1272 , G01R31/08 , G01R31/14
摘要： A method for locating partial discharges occurring at a discharge site (2) in an electric apparatus (3) with elongate geometry and generating corresponding electric pulses (4) propagating in opposite directions along the apparatus (3) from the discharge site (2) comprises the steps: (11) of detecting the pulses (4) picked up by a first and a second sensor (5, 7), connected to the apparatus (3) and spaced out along the same; (15) of deriving shape, phase and amplitude parameters for each of the signals detected; (17) of separating the sets of signals detected in each sensor into respective subsets which are uniform in terms of pulse waveform; (18) of identifying the subsets of signals relating to partial discharges and classifying them; (19) of correlating the subsets relating to different sensors and similarly classified, in order to derive a pair of subsets of signals relating to the same discharge site (2); (12) of selecting, for the pair of correlated subsets, at least one pair of homologous pulses (4) detected in different sensors in the same time interval; and (13) of calculating the distance between the discharge site (2) and the sensors, based on the selected pair of homologous pulses (4).
摘要翻译：一种用于定位在具有细长几何形状的电气设备（3）中的放电部位（2）处发生的局部放电的方法，并且产生沿着装置（3）从放电部位（2）沿相反方向传播的对应电脉冲（4），包括检测由第一和第二传感器（5,7）拾取的脉冲（4）的步骤：（11），连接到设备（3）并沿其间隔开; （15）为检测到的每个信号导出形状，相位和幅度参数; （17），将在每个传感器中检测到的信号组分成在脉冲波形方面是均匀的相应子集; （18）识别与部分放电有关的信号子集并进行分类; （19）将与不同传感器相关的子集相关并且类似地分类，以便导出与同一排放位点（2）有关的一对信号子集; （12）为所述一对相关子集选择在相同时间间隔内在不同传感器中检测到的至少一对同源脉冲（4）; 和（13）基于所选择的一对同源脉冲（4）来计算放电部位（2）和传感器之间的距离。

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