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1. 发明申请

WO2018138723A1 DC POWER SUPPLY ARRANGEMENT 审中-公开
公开(公告)号：WO2018138723A1
公开(公告)日：2018-08-02
申请号：PCT/IL2018/050089
申请日：2018-01-24
申请人： GRIDON LTD.
发明人： GARBI, Uri , LANDWER, Dvir , OREN, Alex , ROZENSHTEIN, Vladimir
IPC分类号： H02H9/02 , H02H9/04 , H02M1/34
CPC分类号： H02H9/021 , H02H9/023
摘要： A DC power supply arrangement is provided that comprises a DC power supply arranged to supply current to an inductive load in a first state of the DC power supply arrangement, and arranged not to supply current to the inductive load in a second state of the DC power supply arrangement; a first switching mechanism connected in series between the DC power supply and the inductive load, wherein the first switching mechanism includes a first switch, and wherein the first switch is closed in the first state; an energy transfer branch connected in parallel with the inductive load, the energy transfer branch comprising a capacitance and a circuit element; wherein on reception of a signal indicating the second state, the first switching mechanism is arranged to open the first switch and the circuit element is arranged such that stored energy from the inductive load charges the capacitance, wherein in the second state conditions the circuit element is arranged to enable stored energy to transfer from the inductive load to the capacitance but to prevent energy transfer from the capacitance back to the inductive load.

2. 发明申请

WO2016120880A1 FAULT CURRENT LIMITER 审中-公开
标题翻译：故障电流限制
公开(公告)号：WO2016120880A1
公开(公告)日：2016-08-04
申请号：PCT/IL2016/050101
申请日：2016-01-31
申请人： GRIDON LTD
发明人： LANDWER, Dvir , GARBI, Uri , ROZENSHTEIN, Vladimir , OREN, Alex
IPC分类号： H02H9/02
CPC分类号： H02H9/021 , H01F27/29 , H01F27/42 , H01F38/023 , H02H9/02
摘要： The present invention provides a fault current limiter apparatus comprising: a fault current limiter including: a magnetically saturable core, at least one AC coil wound on at least a portion of the magnetically saturable core, and a magnetic biasing arrangement for magnetically biasing at least a portion of the magnetically saturable core; a source terminal for electrically connecting the fault current limiter to a power source, and a load terminal for electrically connecting the fault current limiter to a load, wherein the at least one AC coil of the fault current limiter is electrically connected between the source and load terminals, and wherein the fault current limiter has a first inductance in normal conditions and a second inductance in fault conditions; a first capacitance electrically connected between the source and load terminals, wherein the first capacitance is electrically connected in series with the fault current limiter, and wherein the first capacitance has a capacitance that is arranged to have a reactance value that compensates for at least some of the first inductance.
摘要翻译：本发明提供了一种故障限流器装置，包括：故障限流器，包括：磁饱和芯，至少一个缠绕在所述磁饱和芯的至少一部分上的AC线圈，以及用于磁偏置至少一个部分磁饱和芯; 用于将故障限流器电连接到电源的源极端子和用于将故障限流器电气连接到负载的负载端子，其中故障限流器的至少一个AC线圈电连接在源极和负载之间端子，并且其中故障限流器在正常状态下具有第一电感，在故障条件下具有第二电感; 电连接在所述源极和负载端子之间的第一电容，其中所述第一电容与所述故障限流器串联电连接，并且其中所述第一电容具有电容，所述电容被布置为具有补偿至少一些第一个电感。

3. 发明申请

US20180019589A1 FAULT CURRENT LIMITER 审中-公开
公开(公告)号：US20180019589A1
公开(公告)日：2018-01-18
申请号：US15546973
申请日：2016-01-31
申请人： GRIDON LTD.
发明人： Dvir Landwer , Uri Garbi , Vladimir Rozenshtein , Alex Oren
IPC分类号： H02H9/02 , H01F27/42 , H01F27/29
CPC分类号： H02H9/021 , H01F27/29 , H01F27/42 , H01F38/023 , H02H9/02
摘要： The present invention provides a fault current limiter apparatus comprising: a fault current limiter including: a magnetically saturable core, at least one AC coil wound on at least a portion of the magnetically saturable core, and a magnetic biasing arrangement for magnetically biasing at least a portion of the magnetically saturable core; a source terminal for electrically connecting the fault current limiter to a power source, and a load terminal for electrically connecting the fault current limiter to a load, wherein the at least one AC coil of the fault current limiter is electrically connected between the source and load terminals, and wherein the fault current limiter has a first inductance in normal conditions and a second inductance in fault conditions; a first capacitance electrically connected between the source and load terminals, wherein the first capacitance is electrically connected in series with the fault current limiter, and wherein the first capacitance has a capacitance that is arranged to have a reactance value that compensates for at least some of the first inductance.

4. 发明公开

US20230411955A1 CURRENT SINKING ARRANGEMENT 审中-公开
公开(公告)号：US20230411955A1
公开(公告)日：2023-12-21
申请号：US18038587
申请日：2021-11-23
申请人： GridON Ltd
发明人： Vladimir ROZENSHTEIN , Dvir LANDWER , Uri GABRI
IPC分类号： H02H9/02
CPC分类号： H02H9/02
摘要： A current sinking arrangement is provided that comprises a current sinking arrangement for connection to three phases of an AC grid, operable for reduction of short circuit fault currents in the AC grid, the current diverting arrangement comprising first, second and third phase arrangements, each including first and second grid terminals and a current diversion branch having a first impedance and a first switch and connected to a common floating conductor. On reception of a signal indicating a fault, which requires fault current reduction, a switching arrangement is arranged to make the first switches conducting so as to divert a portion of the fault current away from the AC grid fault location to the common floating conductor.

5. 发明申请

WO2015162616A1 FAULT CURRENT LIMITER 审中-公开
标题翻译：故障电流限制
公开(公告)号：WO2015162616A1
公开(公告)日：2015-10-29
申请号：PCT/IL2015/050428
申请日：2015-04-25
申请人： GRIDON LTD.
发明人： LANDWER, Dvir , OREN, Alex , ROZENSHTEIN, Vladimir , GARBI, Uri
IPC分类号： H02H9/02
CPC分类号： H02H9/021 , H01F27/28 , H01F30/12 , H01F38/023 , H01F2006/001 , H01F2038/026
摘要： A fault current limiter is provided that comprises a fault current limiter comprising first, second and third magnetically saturable cores. The fault current limiter comprises a magnetic biasing arrangement arranged to produce a first magnetic circuit in the first magnetically saturable core, a second magnetic circuit in the second magnetically saturable core, and a third magnetic circuit in the third magnetically saturable core; first and second AC coils connected in series and connected to a first phase AC source, wherein the first AC coil is wound on a portion of the first magnetically saturable core and the second AC coil is wound on a portion of the third magnetically saturable core; third and fourth AC coils connected in series and connected to a second phase AC source, wherein the third AC coil is wound on a portion of the first magnetically saturable core and the fourth AC coil is wound on a portion of the second magnetically saturable core; and fifth and sixth AC coils connected in series and connected to a third phase AC source, wherein the fifth AC coil is wound on a portion of the second magnetically saturable core and the sixth AC coil is wound on a portion of the third magnetically saturable core.
摘要翻译：提供了一种故障限流器，其包括故障电流限制器，其包括第一，第二和第三磁性可饱和磁芯。所述故障限流器包括磁偏置装置，所述磁偏置装置布置成在所述第一磁饱和磁芯中产生第一磁路，在所述第二磁饱和磁芯中产生第二磁路，以及在所述第三磁饱和磁芯中产生第三磁路; 串联连接并连接到第一相AC电源的第一和第二AC线圈，其中第一AC线圈缠绕在第一可磁化磁芯的一部分上，而第二AC线圈缠绕在第三磁性可饱和磁芯的一部分上; 第三和第四交流线圈串联连接并连接到第二相交流源，其中第三交流线圈缠绕在第一磁饱和芯的一部分上，第四交流线圈缠绕在第二可磁饱和芯的一部分上; 串联连接到第三相交流电源的第五和第六交流线圈，其中第五交流线圈卷绕在第二可磁化磁芯的一部分上，第六交流线圈缠绕在第三磁性可饱和磁芯的一部分上。

6. 发明申请

WO2014108902A1 FAULT CURRENT LIMITER 审中-公开
标题翻译：故障电流限制
公开(公告)号：WO2014108902A1
公开(公告)日：2014-07-17
申请号：PCT/IL2014/050026
申请日：2014-01-09
申请人： GRIDON LTD
发明人： ROZENSHTEIN, Vladimir
IPC分类号： H01F37/00 , H01F5/02
CPC分类号： H02H9/021 , H01F6/06 , H02H9/023 , Y02E40/69
摘要： A fault current limiter is provided for connection to a three phase AC supply. The fault current limiter comprises a first inductor for connection to a first phase of the AC supply; a second inductor for connection to a second phase of the AC supply; a third inductor for connection to a third phase of the AC supply. Each of the first, second and third inductors comprises a coil, and each of the coils of the first, second and third inductors is such that the self-reactance of each of the first, second and third inductors are substantially equal to a first reactance value. Furthermore, the coils of each of the first, second and third inductors are arranged such that the mutual reactance between each pair of inductors is substantially equal to a second reactance value, and the second reactance value is substantially equal to the first reactance value.
摘要翻译：提供故障限流器用于连接到三相交流电源。故障限流器包括用于连接到AC电源的第一相的第一电感器; 用于连接到AC电源的第二相的第二电感器; 用于连接到AC电源的第三相的第三电感器。第一，第二和第三电感器中的每一个包括线圈，并且第一，第二和第三电感器的每个线圈使得第一，第二和第三电感器中的每一个的自抗性基本上等于第一电抗值。此外，第一，第二和第三电感器中的每一个的线圈被布置成使得每对电感器之间的互抗基本上等于第二电抗值，并且第二电抗值基本上等于第一电抗值。

7. 发明申请

WO2022112938A1 CURRENT SINKING ARRANGEMENT 审中-公开
公开(公告)号：WO2022112938A1
公开(公告)日：2022-06-02
申请号：PCT/IB2021/060862
申请日：2021-11-23
申请人： GRIDON LTD.
发明人： ROZENSHTEIN, Vladimir , LANDWER, Dvir , GARBI, Uri
IPC分类号： H02H3/16 , H02H3/32 , H02H3/34
摘要： A current sinking arrangement is provided that comprises a current sinking arrangement for connection to three phases of an AC grid, operable for reduction of short circuit fault currents in the AC grid, the current diverting arrangement comprising first, second and third phase arrangements, each including first and second grid terminals and a current diversion branch having a first impedance and a first switch and connected to a common floating conductor. On reception of a signal indicating a fault, which requires fault current reduction, a switching arrangement is arranged to make the first switches conducting so as to divert a portion of the fault current away from the AC grid fault location to the common floating conductor.

8. 发明申请

WO2018173054A1 AC SWITCHING ARRANGEMENT 审中-公开
公开(公告)号：WO2018173054A1
公开(公告)日：2018-09-27
申请号：PCT/IL2018/050323
申请日：2018-03-21
申请人： GRIDON LTD.
发明人： GARBI, Uri , LANDWER, Dvir , OREN, Alex , ROZENSHTEIN, Vladimir
IPC分类号： H02H9/00 , H02H9/04 , H02H9/06 , H01F27/42 , H01F27/29
摘要： An AC switching arrangement is provided with an energy transfer arrangement connected in parallel with a switching mechanism. The energy transfer arrangement comprises a capacitance arrangement and a diode arrangement. The switching mechanism is normally closed in a first state, and on reception of a signal indicating the second state, the switching mechanism is arranged to open. When the switching mechanism is in the second state, the diode arrangement is arranged in each AC half cycle to enable energy (source energy, stored inductance energy, etc.) to transfer from the grid to the capacitance arrangement but to prevent energy transfer from the capacitance arrangement back to the grid.

9. 发明申请

WO2014128697A1 FAULT CURRENT LIMITER 审中-公开
标题翻译：故障电流限制
公开(公告)号：WO2014128697A1
公开(公告)日：2014-08-28
申请号：PCT/IL2014/050172
申请日：2014-02-17
申请人： GRIDON LTD
发明人： LANSBERG, Dmitry , ROZENSHTEIN, Vladimir
IPC分类号： H02H9/02
CPC分类号： H01F38/023 , H01F27/36 , H01F27/38
摘要： There is provided a fault current limiter that comprises a magnetically saturable core. The FCL comprises a first DC coil wound around a first portion of the core, with the first DC coil being arranged to saturate at least part of the core in normal conditions. The FCL comprises a first AC coil wound around a second portion of the core, wherein the first AC coil is arranged desaturate at least part of the core in appropriate half cycle in fault limiting conditions and it also comprises a second AC coil wound around a third portion of the core, wherein the second AC coil is arranged desaturate at least part of the core in alternative half cycle in fault limiting conditions. The first and second AC coils being connected in series and connected between a first phase AC source and a load which are producing an AC flux in an AC flux direction that alternates with each AC half-cycle in fault limiting conditions. The FCL also comprise electro-magnetic screens placed around appropriate portion of core between AC and DC coils presenting closed electrical circuit and reducing coupling between AC and DC coils.
摘要翻译：提供了包括磁饱和芯的故障限流器。 FCL包括围绕芯的第一部分缠绕的第一DC线圈，其中第一DC线圈被布置成在正常条件下饱和至少部分芯。 FCL包括围绕芯的第二部分缠绕的第一AC线圈，其中第一AC线圈被布置成在故障限制条件下以合适的半周期对芯的至少部分进行去饱和，并且还包括围绕第三芯部的部分，其中第二AC线圈布置在故障限制条件下以替代半周期的芯部的至少一部分去饱和。第一和第二交流线圈串联连接在第一相交流电源和在故障限制条件下产生与每个交流半周期交替的交流磁通方向的交流磁通的负载之间。 FCL还包括放置在交流和直流线圈之间的铁芯适当部分周围的电磁屏蔽，呈现闭合电路并减少交流和直流线圈之间的耦合。

10. 发明申请

WO2013024462A8 FAULT CURRENT LIMITER 审中-公开
标题翻译：故障电流限制
公开(公告)号：WO2013024462A8
公开(公告)日：2014-04-03
申请号：PCT/IB2012054196
申请日：2012-08-17
申请人： GRIDON LTD , WILSON ROBERT , PANNU MOHINDER
发明人： WILSON ROBERT , PANNU MOHINDER
IPC分类号： H02H9/02
CPC分类号： H02H9/021 , H01F29/14 , H01F38/023 , H01F2003/103 , H01F2006/001 , H02H3/332
摘要： A fault current limiter is provided that comprises a magnetically saturable core. The first core includes a first leg, a second leg, with a first AC coil wound on the second leg, a third leg, with a second AC coil wound around the third leg, the first and second AC coils being wound in series and connected to a first phase AC source, and a fourth leg. The first magnetic biasing unit is arranged to produce a first closed magnetic circuit in the first leg and the second leg that has a first flux direction, and the second coil is arranged to produce a second closed magnetic circuit in the fourth leg and the third leg that has a second flux direction, wherein the first flux direction opposes the second flux direction. The first and second AC coils are arranged to produce a first closed AC magnetic circuit in the second and third legs in an AC flux direction that alternates with each AC half-cycle.
摘要翻译：提供了包括磁饱和芯的故障电流限制器。第一芯包括第一腿，第二腿，第一腿和第二腿上的第一个交流线圈，第三腿，第二个交流线圈围绕第三个腿缠绕，第一个和第二个交流线圈串联并连接到第一相AC源和第四支路。第一磁偏置单元被布置成在第一腿部和第二腿部中产生具有第一磁通方向的第一闭合磁路，并且第二线圈布置成在第四腿部和第三腿部中产生第二闭合磁路其具有第二磁通方向，其中所述第一磁通方向与所述第二磁通方向相反。第一和第二AC线圈被布置成在与每个AC半周期交替的AC通量方向上产生第二和第三腿中的第一闭合AC磁路。

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