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1. 发明申请

US20230102770A1 Predicting Zero-Crossings For Point-On-Wave (POW) Switching Techniques 有权
公开(公告)号：US20230102770A1
公开(公告)日：2023-03-30
申请号：US17485748
申请日：2021-09-27
申请人： Rockwell Automation Technologies, Inc.
发明人： Kyle B. Adkins , Andrew E. Carlson , David M. Messersmith
IPC分类号： H01H47/22 , H01H50/44 , H01H50/36 , H01H47/00
摘要： A method may include receiving a command to move one or more armatures of a switching device from a first position that electrically couples a first contact to a second contact to a second position that electrically uncouples the first contact from the second contact. The method may also include selecting a current zero-crossing point along an electric waveform indicative of a change in current through the first contact and the second contact as a synchronization point, determining a predicted current zero-crossing point by adding a period measurement associated with a previously detected current zero-crossing point or a previously detected line-to-line crossing point in the electric waveform to the synchronization point, and transmitting a command to the switching device to move the armatures from the first position to the second position before or at the predicted current zero-crossing point.

2. 发明申请

US20230040913A1 CONTROL CIRCUIT FOR CONTACTOR AND ITS CONTROL METHOD 有权
公开(公告)号：US20230040913A1
公开(公告)日：2023-02-09
申请号：US17789091
申请日：2020-12-25
申请人： SCHNEIDER ELECTRIC INDUSTRIES SAS
发明人： Bing SHUANG , David LANES , Vincent GEFFROY
IPC分类号： H01H47/00 , H01H47/22
摘要： Embodiments of the present disclosure relate to a control circuit for a contactor and a control method thereof. The control circuit comprises: a pulse converter configured to convert a turn-on control signal into a continuous pulse signal; a first controller configured to generate a first breaking control signal at a first time in response to detection of the disappearance of the continuous pulse signal received from the pulse converter; a second controller configured to generate a second breaking control signal at a second time in response to detection of the disappearance of the continuous pulse signal received from the pulse converter, wherein the first time is earlier than the second time; and a coil driver configured to turn off a current of the excitation coil according to the received first breaking control signal, and if the current is not turned off according to the first breaking control signal, to further turn off the current of the excitation coil according to the second breaking control signal, thereby realizing the breaking of the main contact.

3. 发明申请

US20220415598A1 APPARATUS FOR SEPARATING POWER NET USING LATCH RELAY AND METHOD THEREOF 有权
公开(公告)号：US20220415598A1
公开(公告)日：2022-12-29
申请号：US17584648
申请日：2022-01-26
申请人： HYUNDAI MOTOR COMPANY , Kia Corporation
发明人： Jong Joo KIM
IPC分类号： H01H50/44 , H01H50/14 , H01H47/22
摘要： The present disclosure relates to a power grid separating apparatus using a latch relay and a method thereof. An exemplary embodiment of the present disclosure provides a power net separating apparatus including: a switch configured to have a first end connected to a first power source and a second end connected to a second power source; a latch relay coil configured to control on and off of the switch; a first signal terminal connected to the first power source; a second signal terminal to which a connection signal for opening the switch is applied; a third signal terminal configured to serve as a power terminal of the latch relay coil; a fourth signal terminal to which a blocking signal for closing the switch is applied; and a fifth signal terminal connected to the second power source.

4. 发明申请

US20220392681A1 SYSTEMS AND METHODS FOR CONTROLLING CONTACTOR BOUNCE 有权
公开(公告)号：US20220392681A1
公开(公告)日：2022-12-08
申请号：US17884386
申请日：2022-08-09
申请人： Rockwell Automation Technologies, Inc.
发明人： Andrew E. Carlson , Kyle B. Adkins
IPC分类号： H01F7/06 , H01H47/00 , H01H47/22 , H01H50/18 , H01H50/44 , H01H50/54
摘要： A relay device may include an armature that moves between a first position that electrically couples the armature to a first contact and a second position that electrically couples the armature to a second contact. The relay device may also include a relay coil that receives a voltage to magnetize the relay coil, thereby causing the armature to move from the first position to the second position. The relay device also includes an additional coil that couples in series with the relay coil via a switch. The relay device also includes a drive circuit that causes the switch to couple the additional coil to the relay coil in response to receiving a signal indicative of the relay coil energizing.

5. 发明授权

US11521815B2 Detecting a position of an armature in an electromagnetic actuator 有权
公开(公告)号：US11521815B2
公开(公告)日：2022-12-06
申请号：US16929946
申请日：2020-07-15
申请人： Rockwell Automation Technologies, Inc.
发明人： Andrew E. Carlson , Kyle B. Adkins
IPC分类号： H01H47/00 , H01H47/22 , H01H47/32 , H01H50/18
摘要： A system may include an armature configured to move between a first position that electrically couples the armature to a first contact and a second position that electrically couples the armature to a second contact. The system may also include a coil configured receive a current, such that the current conducting in the coil is configured to magnetize a core. The magnetized core may cause the armature to move from the first position to the second position. The system may also include a control system configured to detect a position of the armature based on an inductance of the coil.

6. 发明申请

US20220310339A1 SWITCHING SYSTEM OF AN ELECTRICAL DEVICE 有权
公开(公告)号：US20220310339A1
公开(公告)日：2022-09-29
申请号：US17695888
申请日：2022-03-16
申请人： Schneider Electric Industries SAS
发明人： Philippe Picot , Mathieu Bono , Stéphane Follic , Philippe Schuster
IPC分类号： H01H50/16 , H01H47/22 , H01H50/56
摘要： A switching system for switching an electrical device, comprising: a vacuum interrupter including a fixed electrode, and a mobile electrode, the mobile electrode configured to move between a closed position and an open position. The switching system further comprising an elastic return means configured to apply a driving force to the mobile electrode, and a retaining member for retaining the elastic return means, the retaining member configured to moves from a retention configuration, in which the elastic return means is immobilized, into a movement configuration, in which the elastic return means is released. The switching system is configured so that the mobile electrode moves from the closed position to the open position under the action of the elastic return means when the retaining member leaves its retention configuration.

7. 发明申请

US20220301795A1 PROTECTIVE DEVICE, ENERGY STORAGE APPARATUS, AND METHOD FOR REDUCING CONTACT RESISTANCE OF RELAY 有权
公开(公告)号：US20220301795A1
公开(公告)日：2022-09-22
申请号：US17641738
申请日：2020-08-18
申请人： GS Yuasa International Ltd.
发明人： Akihito UMEDA , Takeyuki SHIRAISHI
IPC分类号： H01H47/00 , H01H47/22
摘要： A protective device includes a relay having a contact that opens and closes a current path of a cell, and a control device that controls the relay. The control device executes a reduction processing of reducing a contact resistance of the relay.

8. 发明授权

US11380502B2 Electromagnetic switch control device 有权
公开(公告)号：US11380502B2
公开(公告)日：2022-07-05
申请号：US17285949
申请日：2019-09-12
申请人： Hitachi Astemo, Ltd.
发明人： Hikaru Miura , Tomonori Kanai , Akihiro Machida , Tatsumi Yamauchi
IPC分类号： H01H47/22 , H01H47/00
摘要： Provided is an electromagnetic switch control device capable of stabilizing a contact pressure by predicting a near-future value of an operation coil current and performing control such that the near-future value does not fall below a holding current threshold value by a control unit. An electromagnetic switch control device 1 opens and closes 13 by an electromagnetic force corresponding to energization of operation coils 16 and 17, and includes PWM control units 21 to 23 that perform PWM pulse width modulation control of a current value A flowing through the operation coils 16 and 17. The PWM control units 21 to 23 estimate the near-future predicted current value flowing through the operation coils 16 and 17 by using a terminal voltage V of the operation coils 16 and 17, and perform PWM control based on the estimated current value. The predicted current value Y is estimated by using an impedance Z of the operation coils 16 and 17. The impedance is a variable obtained by current values A1 and A2 and terminal voltages V1 and V2 of the operation coils 16 and 17, and a constant approximated over a predetermined period from a latest past to a present time is used. The impedance is updated for each predetermined period.

9. 发明申请

US20220130630A1 BI-STABLE ELECTROMAGNETIC ACTUATOR 有权
公开(公告)号：US20220130630A1
公开(公告)日：2022-04-28
申请号：US17291176
申请日：2018-11-05
申请人： HYDRO-QUÉBEC
发明人： Bruno Francoeur , Pierre Couture
IPC分类号： H01H50/18 , H01H50/02 , H01H50/44 , H01H47/22
摘要： A bistable electromagnetic actuator is described. The actuator includes a mobile assembly and a fixed assembly. The mobile assembly includes at least one pair of ferromagnetic plunger-cores, a frame integrally connecting the plunger-cores, and a guiding element. The fixed assembly includes a ferromagnetic core having cavities defined on each of its two sides configured to receive a corresponding one of the plunger-cores, at least one magnet positioned between the cavities in the core and being able to create a first magnetic flux, at least one coil operable via an excitation current to create a second magnetic flux, and a guiding element adapted to cooperate with the guiding element of the mobile assembly to allow the mobile assembly to move between a first and a second stable position. Methods for actuating the bistable electromagnetic actuator are also described.

10. 发明授权

US11217407B2 Method for operating a medium voltage circuit breaker or recloser and medium voltage circuit breaker or recloser itself 有权
公开(公告)号：US11217407B2
公开(公告)日：2022-01-04
申请号：US16827729
申请日：2020-03-24
申请人： ABB Schweiz AG
发明人： Christian Reuber
IPC分类号： H01H11/00 , H01H47/00 , H01H47/22 , H01H47/32 , H01H9/56 , G01R31/327 , H01H33/59
摘要： A method for operating a medium voltage circuit breaker or recloser comprising at least one electric pole, each including a movable contact and a fixed contact, being in a closed or an open position after switching operations of the medium voltage circuit breaker or recloser, and an electromagnetic actuator, includes: monitoring a travel curve of the movable contact, the travel curve being derived by an evaluation of a shape of an applied current and a shape of an applied voltage using a mathematical representation of the electromagnetic actuator.

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