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1.发明授权Arc fault detection equipment and method using low frequency harmonic current analysis 有权电弧故障检测设备及方法采用低频谐波电流分析公开(公告)号：US09025287B2
公开(公告)日：2015-05-05
申请号：US13719698
申请日：2012-12-19
Applicant: STMicroelectronics S.r.l.
Inventor： Giuseppe Privitera , Antonio Cataliotti , Valentina Cosentino , Giovanni Artale
CPC classification number: G01R31/025 , G01R31/14 , G06F17/00 , H01H9/50 , H02H1/0015
Abstract: An arc fault detection circuit includes a current sensing circuit coupled to a line conductor carrying a current. The current sensing circuit operates to sense current and output data indicative of the sensed current. A processing circuit implements a frequency transform algorithm to transform the output data to frequency data in a low frequency range and with a high spectral resolution where a minimum short time observation window is concerned. The processing circuit identifies an arc fault condition on the line conductor by identifying differences in said frequency data between at least two subsequent observation windows and identifying characteristics which exceed thresholds.
Abstract translation: 电弧故障检测电路包括耦合到承载电流的线路导体的电流感测电路。 电流感测电路用于感测指示感测电流的电流和输出数据。 处理电路实现频率变换算法，以将输出数据变换成低频范围内的频率数据，并且在具有最小短时间观测窗口的高分辨率下进行变换。 处理电路通过识别至少两个后续观察窗口之间的所述频率数据中的差异并识别超过阈值的特征来识别线路导体上的电弧故障状况。
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公开(公告)号：US20130257560A1
公开(公告)日：2013-10-03
申请号：US13905984
申请日：2013-05-30
Applicant: STMicroelectronics S.r.l.
Inventor： Riccardo Fiorelli , Antonio Cataliotti , Dario Di Cara , Giovanni Tine
IPC: H03H7/48
CPC classification number: H03H7/004 , H04B3/56 , H04B2203/5491
Abstract: A coupling interface couples a transceiver to one or more capacitive voltage dividers of a power transmission system. The coupling interface includes a first signal path including an adjustable inductance configured to form a resonance circuit with a capacitance associated with the one or more capacitive voltage dividers. The coupling interface may include a second signal path including an adjustable inductance configured to form a resonance circuit with the capacitance associated with the one or more capacitive voltage dividers.
Abstract translation: 耦合接口将收发器耦合到电力传输系统的一个或多个电容分压器。 耦合接口包括第一信号路径，其包括被配置为形成具有与一个或多个电容分压器相关联的电容的谐振电路的可调整电感。 耦合接口可以包括第二信号路径，其包括被配置为形成具有与一个或多个电容性分压器相关联的电容的谐振电路的可调整电感。
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公开(公告)号：US08896393B2
公开(公告)日：2014-11-25
申请号：US13905984
申请日：2013-05-30
Applicant: STMicroelectronics S.r.l.
Inventor： Riccardo Fiorelli , Antonio Cataliotti , Dario Di Cara , Giovanni Tine
CPC classification number: H03H7/004 , H04B3/56 , H04B2203/5491
Abstract: A coupling interface couples a transceiver to one or more capacitive voltage dividers of a power transmission system. The coupling interface includes a first signal path including an adjustable inductance configured to form a resonance circuit with a capacitance associated with the one or more capacitive voltage dividers. The coupling interface may include a second signal path including an adjustable inductance configured to form a resonance circuit with the capacitance associated with the one or more capacitive voltage dividers.
Abstract translation: 耦合接口将收发器耦合到电力传输系统的一个或多个电容分压器。 耦合接口包括第一信号路径，其包括被配置为形成具有与一个或多个电容分压器相关联的电容的谐振电路的可调整电感。 耦合接口可以包括第二信号路径，其包括被配置为形成具有与一个或多个电容性分压器相关联的电容的谐振电路的可调整电感。
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4.发明申请ARC FAULT DETECTION EQUIPMENT AND METHOD USING LOW FREQUENCY HARMONIC CURRENT ANALYSIS 有权ARC故障检测设备和使用低频谐波电流分析的方法公开(公告)号：US20140168843A1
公开(公告)日：2014-06-19
申请号：US13719698
申请日：2012-12-19
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Giuseppe Privitera , Antonio Cataliotti , Valentina Cosentino , Giovanni Artale
CPC classification number: G01R31/025 , G01R31/14 , G06F17/00 , H01H9/50 , H02H1/0015
Abstract: An arc fault detection circuit includes a current sensing circuit coupled to a line conductor carrying a current. The current sensing circuit operates to sense current and output data indicative of the sensed current. A processing circuit implements a frequency transform algorithm to transform the output data to frequency data in a low frequency range and with a high spectral resolution where a minimum short time observation window is concerned. The processing circuit identifies an arc fault condition on the line conductor by identifying differences in said frequency data between at least two subsequent observation windows and identifying characteristics which exceed thresholds.
Abstract translation: 电弧故障检测电路包括耦合到承载电流的线路导体的电流感测电路。 电流感测电路用于感测指示感测电流的电流和输出数据。 处理电路实现频率变换算法，以将输出数据变换成低频范围内的频率数据，并且在具有最小短时间观测窗口的高分辨率下进行变换。 处理电路通过识别至少两个后续观察窗口之间的所述频率数据中的差异并识别超过阈值的特征来识别线路导体上的电弧故障状况。
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