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1. 发明公开

US20230350440A1 DEVICE AND METHOD FOR HARVESTING ENERGY FROM A POWER LINE MAGNETIC FIELD 审中-公开
公开(公告)号：US20230350440A1
公开(公告)日：2023-11-02
申请号：US18212536
申请日：2023-06-21
申请人： Aclara Technologies LLC
发明人： Richard Desmarais , Richard Martyn , Michael Giovannoni
IPC分类号： G05F1/12 , H02J3/18 , H01F27/42 , G01R19/25 , H02J3/00 , H02J50/00 , H02J50/10
CPC分类号： G05F1/12 , H02J3/18 , H01F27/427 , G01R19/2513 , H02J3/007 , H02J50/001 , H02J50/10
摘要： An energy harvesting device (CTH) installed in an electrical distribution system (EDS) for powering ancillary electrical devices (AD) used in the distribution system. The device includes a first voltage regulator circuit (CC) configured to produce a voltage matched to a power curve of a current transformer (CT) to which the device is electrically coupled. The device also includes a second and separate voltage regulator circuit (SVR) which continuously operates to maximize the amount of electrical energy recovered from the current transformer.

2. 发明授权

US10067216B2 System for correcting error 有权
公开(公告)号：US10067216B2
公开(公告)日：2018-09-04
申请号：US15210794
申请日：2016-07-14
申请人： LSIS CO., LTD.
发明人： Dong-Su Kim
IPC分类号： G01R35/00 , G01R35/02 , H01F27/42 , G01R31/02 , G01R19/25
CPC分类号： G01R35/005 , G01R19/2513 , G01R31/027 , G01R35/02 , H01F27/427
摘要： Disclosed embodiments relate to a system for correcting an error, which can correct the error of a measurement device and a transformer data unit through calibration using an emulator even if the measurement device and the transformer data unit are connected in a random combination. In some embodiments, the system for correcting an error includes a measurement device connected to a secondary output line of a transformer to measure current that is output from the transformer, a transformer data unit configured to determine a usage rate and an overload state through calculation of a load amount for a capacity of the transformer in accordance with the current that is measured by the measurement device, and an emulator connected to the measurement device and the transformer data unit to perform error correction between the measurement device and the transformer data unit through performing calibration at least once.

3. 发明申请

US20170016973A1 SYSTEM FOR CORRECTING ERROR 审中-公开
标题翻译：纠正错误的系统
公开(公告)号：US20170016973A1
公开(公告)日：2017-01-19
申请号：US15210794
申请日：2016-07-14
申请人： LSIS CO., LTD.
发明人： Dong-Su KIM
IPC分类号： G01R35/00 , G01R31/02
CPC分类号： G01R35/005 , G01R19/2513 , G01R31/027 , G01R35/02 , H01F27/427
摘要： Disclosed embodiments relate to a system for correcting an error, which can correct the error of a measurement device and a transformer data unit through calibration using an emulator even if the measurement device and the transformer data unit are connected in a random combination. In some embodiments, the system for correcting an error includes a measurement device connected to a secondary output line of a transformer to measure current that is output from the transformer, a transformer data unit configured to determine a usage rate and an overload state through calculation of a load amount for a capacity of the transformer in accordance with the current that is measured by the measurement device, and an emulator connected to the measurement device and the transformer data unit to perform error correction between the measurement device and the transformer data unit through performing calibration at least once.
摘要翻译：公开的实施例涉及用于校正错误的系统，即使测量装置和变压器数据单元以随机组合连接，该系统也可以通过使用仿真器的校准来校正测量装置和变压器数据单元的误差。在一些实施例中，用于校正误差的系统包括连接到变压器的次级输出线的测量装置，以测量从变压器输出的电流;变压器数据单元，被配置为通过计算根据由测量装置测量的电流的变压器的容量的负载量以及连接到测量装置和变压器数据单元的仿真器，以通过执行测量装置和变压器数据单元之间的差错校正来执行校准至少一次。

4. 发明授权

US09369052B1 Plural commutated-element direct-current current transformer 有权
标题翻译：多路整流元件直流电流互感器
公开(公告)号：US09369052B1
公开(公告)日：2016-06-14
申请号：US14953331
申请日：2015-11-28
申请人： William Henry Morong
发明人： William Henry Morong
IPC分类号： H02M3/335 , H02M1/00 , H01F27/42 , H01F27/29
CPC分类号： H02M3/33546 , G01R15/18 , H01F27/29 , H01F27/427
摘要： The present invention provides a plural commutated-element direct-current current transformer (DCCT) that offers wide bandwidth together with freedom from transient disturbances caused by commutation. Plural commutated elements, each comprising a commutating switch and a current transformer each generate, responsive to a commutating signal, a current in a burden, each burden generating in turn a signal representing a DCCT input current. The commutating signal for each element is out of phase with such signals driving other commutated elements. Because of this phase difference, at any given time at least one commutated element is producing a signal free of transient disturbances from commutation. A selector switch, responsive to a selector signal out of phase with all commutating signals, connects to a DCCT output terminal only a burden signal representing the input current that is presently free of transient disturbances.
摘要翻译：本发明提供了一种多重换向元件直流电流互感器（DCCT），其提供宽带宽，同时不受由换向引起的瞬态干扰的影响。每个包括换向开关和电流互感器的多个换向元件响应于换向信号而产生负载中的电流，每个负载产生代表DCCT输入电流的信号。每个元件的换向信号与驱动其它换向元件的信号不同相。由于该相位差，在任何给定时间，至少一个换向元件产生没有来自换向的瞬时干扰的信号。选择器开关响应于与所有换向信号异相的选择器信号，仅将DCCT输出端连接到表示当前没有瞬态干扰的输入电流的负载信号。

5. 发明申请

US20160005534A1 Current Transformer System With Sensor CT And Generator CT Separately Arranged In Parallel In Electric Power Line, And Integrated System For Controlling Same In Wireless Communications Network 审中-公开
标题翻译：具有传感器CT和发电机CT的电流互感器系统并联在电力线上，以及用于在无线通信网络中控制的集成系统
公开(公告)号：US20160005534A1
公开(公告)日：2016-01-07
申请号：US14769796
申请日：2014-02-20
申请人： TERA ENERGY SYSTEM SOLUTION CO. LTD
发明人： JA-IL KOO , TAE-KYOUNG KIM
IPC分类号： H01F27/42 , H02J7/00 , H01F38/20 , H04W4/00 , H01F38/16 , H01F27/02 , H04B5/00 , G01R31/02 , H01F38/14
CPC分类号： H01F27/427 , G01R15/183 , G01R15/186 , G01R31/027 , H01F27/02 , H01F38/14 , H01F38/16 , H01F38/20 , H02J7/0068 , H04B5/0043 , H04B5/0075 , H04W4/80 , H04W84/12
摘要： A current transformer system according to the present invention includes: a sensor CT detachably attached to an electric power transmission/distribution line for detecting the current flowing through the power line by means of electromagnetic induction; a generator CT detachably attached to an electric power transmission/distribution line for generating power by means of electromagnetic induction; and a microprocessor for controlling the sensor CT and the generator CT. According to the present invention, the generator CT is used as the main power source so as to perform independently power supply and facilitate the construction of an additional source in need of additional power.
摘要翻译：根据本发明的电流互感器系统包括：可拆卸地附接到电力输送/分配线的传感器CT，用于通过电磁感应检测流过电力线的电流; 发电机CT，其可拆卸地连接到用于通过电磁感应发电的电力输配电线; 以及用于控制传感器CT和发生器CT的微处理器。根据本发明，发电机CT用作主电源，以独立地执行供电，并且有助于构建需要额外功率的附加电源。

6. 发明授权

US08957753B2 Current transformer 有权
标题翻译：电流互感器
公开(公告)号：US08957753B2
公开(公告)日：2015-02-17
申请号：US13302400
申请日：2011-11-22
申请人： Martin Odehnal , Roman Pernica , Pavel Vano
发明人： Martin Odehnal , Roman Pernica , Pavel Vano
IPC分类号： H01F38/20 , H01F17/06 , H01F27/32 , H01F38/30 , H01F27/28
CPC分类号： H01F38/30 , H01F27/289 , H01F27/427 , H01F2038/305
摘要： Exemplary embodiments are directed to a current transformer having a toroidal magnetic core around which an even number of shielding coils is wound. The shielding coils are operatively associated two by two to form corresponding couples. The shielding coils of each couple are wound on parts of the toroidal magnetic core opposite to each other and are connected in parallel to each other for obtaining a magnetic flux in them. The magnetic flux in a first shielding coil of a couple of shielding coils has an opposite direction with respect to a magnetic flux in a second shielding coil of the couple. The couples of shielding coils are connected in series.
摘要翻译：示例性实施例涉及具有环形磁芯的电流互感器，围绕其缠绕有数量的屏蔽线圈。屏蔽线圈可操作地关联两个以形成相应的耦合。每对耦合的屏蔽线圈缠绕在环形磁芯的彼此相对的部分上并且彼此并联连接以在其中获得磁通量。一对屏蔽线圈的第一屏蔽线圈中的磁通量相对于耦合的第二屏蔽线圈中的磁通量具有相反的方向。两对屏蔽线圈串联连接。

7. 发明申请

US20050001706A1 Low power cosuming current measurements for high currents 失效
标题翻译：用于高电流的低功耗电流测量
公开(公告)号：US20050001706A1
公开(公告)日：2005-01-06
申请号：US10881844
申请日：2004-06-29
申请人： Ulf Ingemar Karlsson , Erik Lindgren , Thord Gustaf Nilson
发明人： Ulf Ingemar Karlsson , Erik Lindgren , Thord Gustaf Nilson
IPC分类号： G01R15/18 , H01F27/42 , H01F38/28 , H01F38/30 , H01F38/32 , H01F27/28
CPC分类号： H01F27/427 , G01R15/185 , H01F38/28 , H01F38/30 , H01F38/32
摘要： This invention propose a way of controlling the flux density in a current transformer to keep the transformer core saturated between two consecutive measurements in a sampling measurement system. Saturation disables transformation of primary to secondary current, and thereby disables losses in the secondary circuit during this time. Both AC and DC currents are possible to measure. The use of saturation of the transformer core also permits the core to be designed physically very small. In order to get effective and accurate low power consuming measurements, both the magnetic fields originating from primary current flowing in the primary winding and external magnetic fields must be symmetrically physically spread in the transformer core. This greatly limits the possible physical arrangement of the primary winding. The invention describes a method dividing the secondary winding into two or more separate winding sections, greatly reducing this demand and permitting a asymmetrically spread magnetic field in the core without decreasing the efficiency and accuracy of the measurements.
摘要翻译：本发明提出了一种控制电流互感器中的磁通密度的方法，以便在采样测量系统中使变压器芯饱和在两个连续的测量之间。饱和度使初级电流转换为次级电流，从而在此期间禁止次级电路中的损耗。 AC和DC电流都可以测量。使用变压器磁芯的饱和度也可以使磁芯的物理设计非常小。为了获得有效和准确的低功耗测量，源自初级绕组中流动的初级电流的磁场和外部磁场必须对称地物理地扩展到变压器磁芯中。这大大限制了初级绕组的可能的物理布置。本发明描述了一种将次级绕组分成两个或更多个分离的绕组部分的方法，大大减小了该需求并且允许在芯中不对称扩展的磁场，而不降低测量的效率和精度。

8. 发明授权

US06414579B1 Current transformer and method for correcting asymmetries therein 失效
标题翻译：电流互感器及其中的不对称性校正方法
公开(公告)号：US06414579B1
公开(公告)日：2002-07-02
申请号：US09455426
申请日：1999-12-06
申请人： Jerome Johnson Tiemann , Richard Dudley Baertsch
发明人： Jerome Johnson Tiemann , Richard Dudley Baertsch
IPC分类号： H01F3820
CPC分类号： H01F27/34 , H01F27/266 , H01F27/427 , H01F30/16 , H01F38/30 , H01H83/144 , H01H2083/146
摘要： A current transformer for a ground fault circuit breaker used on a circuit having at least one line conductor and a neutral conductor includes a toroidal core having a circular opening defining a center point and a multi-turn winding wound on the core. A first guide member is disposed on one side of the core, and a second guide member is disposed on another side of the core. The first and second guide members each have a hole for receiving the line conductor and a hole for receiving the neutral conductor formed therein. The guide members thus position the conductors with respect to the core. Also included is a method of correcting asymmetries in the current transformer. The method includes measuring the magnitude and orientation of any asymmetries, and then altering the current transformer based on the measured magnitude and orientation of the asymmetries so as to eliminate the asymmetries.
摘要翻译：用于具有至少一个线路导体和中性导体的电路上的接地故障断路器的电流互感器包括具有限定中心点的圆形开口的环形铁芯和缠绕在铁心上的多匝绕组。第一引导构件设置在芯的一侧，并且第二引导构件设置在芯的另一侧。第一和第二引导构件各自具有用于接收线路导体的孔和用于接收其中形成的中性导体的孔。因此，引导构件相对于芯体定位导体。还包括校正电流互感器中的不对称性的方法。该方法包括测量任何不对称的幅度和取向，然后基于测量的不对称的大小和取向改变电流互感器，以消除不对称性。

9. 发明申请

US20020057162A1 CURRENT TRANSFORMER AND METHOD FOR CORRECTING ASYMMETRIES THEREIN 失效
标题翻译：电流互感器及其校正方法
公开(公告)号：US20020057162A1
公开(公告)日：2002-05-16
申请号：US09455426
申请日：1999-12-06
发明人： JEROME JOHNSON TIEMANN , RICHARD DUDLEY BAERTSCH
IPC分类号： H01F027/02
CPC分类号： H01F27/34 , H01F27/266 , H01F27/427 , H01F30/16 , H01F38/30 , H01H83/144 , H01H2083/146
摘要： A current transformer for a ground fault circuit breaker used on a circuit having at least one line conductor and a neutral conductor includes a toroidal core having a circular opening defining a center point and a multi-turn winding wound on the core. A first guide member is disposed on one side of the core, and a second guide member is disposed on another side of the core. The first and second guide members each have a hole for receiving the line conductor and a hole for receiving the neutral conductor formed therein. The guide members thus position the conductors with respect to the core. Also included is a method of correcting asymmetries in the current transformer. The method includes measuring the magnitude and orientation of any asymmetries, and then altering the current transformer based on the measured magnitude and orientation of the asymmetries so as to eliminate the asymmetries.
摘要翻译：用于具有至少一个线路导体和中性导体的电路上的接地故障断路器的电流互感器包括具有限定中心点的圆形开口的环形铁芯和缠绕在铁心上的多匝绕组。第一引导构件设置在芯的一侧，并且第二引导构件设置在芯的另一侧。第一和第二引导构件各自具有用于接收线路导体的孔和用于接收其中形成的中性导体的孔。因此，引导构件相对于芯体定位导体。还包括校正电流互感器中的不对称性的方法。该方法包括测量任何不对称的幅度和取向，然后基于测量的不对称的大小和取向改变电流互感器，以消除不对称性。

10. 发明授权

US2467807A Electric induction apparatus 失效
公开(公告)号：US2467807A
公开(公告)日：1949-04-19
申请号：US56583244
申请日：1944-11-30
申请人： GEN ELECTRIC
发明人： GUGLIELMO CAMILLI , ARAM BOYAJIAN
IPC分类号： H01F27/42 , H01F38/32
CPC分类号： H01F27/427 , H01F38/32

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