WO2018037547A1 - 電磁操作機構の駆動回路 - Google Patents

電磁操作機構の駆動回路 Download PDF

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Publication number
WO2018037547A1
WO2018037547A1 PCT/JP2016/074906 JP2016074906W WO2018037547A1 WO 2018037547 A1 WO2018037547 A1 WO 2018037547A1 JP 2016074906 W JP2016074906 W JP 2016074906W WO 2018037547 A1 WO2018037547 A1 WO 2018037547A1
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WO
WIPO (PCT)
Prior art keywords
switch element
closing
circuit
opening
drive
Prior art date
Application number
PCT/JP2016/074906
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
裕人 釋氏
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to CN201680088639.7A priority Critical patent/CN109690718B/zh
Priority to EP16914221.3A priority patent/EP3506330B1/de
Priority to PCT/JP2016/074906 priority patent/WO2018037547A1/ja
Publication of WO2018037547A1 publication Critical patent/WO2018037547A1/ja

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/38—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H33/6662—Operating arrangements using bistable electromagnetic actuators, e.g. linear polarised electromagnetic actuators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/226—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil for bistable relays

Definitions

  • the present invention relates to a drive circuit for an electromagnetic operation mechanism having a protection circuit in, for example, a drive circuit for an electromagnetic operation mechanism that performs opening and closing operations of power equipment.
  • a drive circuit of an electromagnetic operation mechanism that performs opening / closing operation of a vacuum valve of a power device for example, a vacuum circuit breaker
  • two drive coils for closing and opening are provided for one movable iron core
  • a voltage is generated across the other drive coil where no current is passed due to the induced electromotive force.
  • the generated voltage is proportional to the turns ratio of the two drive coils, for example, when the number of turns of the opening drive coil is 100 turns and the number of turns of the closing drive coil is 500 turns, the opening drive coil has a voltage of 100V. Assuming that a voltage is applied, a voltage of 500 V proportional to the turn ratio is generated at both ends of the closing drive coil. Therefore, when the turn ratio of the two drive coils is large, the voltage generated in the drive coil that does not pass current may exceed the withstand voltage of the switch element for drive control. Protection measures are required.
  • a closing drive coil is connected to a closing capacitor serving as a DC power source via a closing drive switch element, and a closing side overvoltage suppressing means in which a resistor and a switch element are connected in series is closed.
  • a closing drive circuit connected in parallel to the driving coil and provided with a protective switch element between the closing drive coil and the closing drive switch element, and an opening capacitor serving as a DC power supply.
  • An opening driving coil is connected via an opening driving coil, and an opening-side overvoltage suppressing means in which a resistor and a switching element are connected in series is connected in parallel to the opening driving coil. And a voltage detection circuit provided in parallel with the opening driving switch element and in series with the opening driving coil, and the opening driving coil is excited to close the closing driving coil side.
  • the protection switch element is configured to be opened.
  • the protective switch element is closed first.
  • a current flows from the closing capacitor to the closing drive coil.
  • the switching element of the closing side overvoltage suppressing means is closed.
  • the closing drive switch element is opened.
  • the voltage of the voltage detection circuit becomes a value close to both ends of the closing capacitor at the timing when the closing driving switch element is opened.
  • the closing drive switch element cannot be opened and remains closed, the voltage of the voltage detection circuit is close to zero. If the voltage of the voltage detection circuit is close to zero at the timing when the closing drive switch element should be opened, it is determined that the closing drive switch element is short-circuited and the protective switch element remains closed It becomes.
  • the energy stored in the closing drive capacitor is consumed until it becomes zero. Protection that does not have the ability to cut off the current during driving because the energy stored in the closing capacitor is close to zero and the current flowing in the closing drive coil is also close to zero. It is possible to cut off the switch element for use.
  • the voltage detection circuit determines that the short-circuit failure state of the closing drive switch element is determined so that the protection switch element does not cut off the current during driving. be able to.
  • the voltage detection circuit determines that the short-circuit failure state of the closing drive switch element is determined so that the protection switch element does not cut off the current during driving. be able to.
  • the voltage detection circuit determines that the short-circuit failure state of the closing drive switch element is determined so that the protection switch element does not cut off the current during driving. be able to.
  • the voltage detection circuit determines that the short-circuit failure state of the closing drive switch element is determined so that the protection switch element does not cut off the current during driving. be able to.
  • the present invention has been made to solve the above-described problems, and is a case where the switching element of the closing side overvoltage suppression circuit of the drive circuit of the electromagnetic operation mechanism that opens and closes the electric power device has an open failure. Even if it exists, it aims at providing the drive circuit of the electromagnetic operation mechanism which can stop the interruption
  • a drive circuit for an electromagnetic operation mechanism includes a movable iron core connected to a power device that is opened and closed, a closing drive coil that drives the movable iron core, and an opening drive coil.
  • a closing capacitor connected to the closing drive coil for supplying power, and a closing drive switch element for controlling the supply of power from the closing capacitor to the closing drive coil,
  • a protective circuit provided between the closing drive switch element and the closing drive coil and opened when the opening driving coil is excited and an induced electromotive force is generated in the closing drive coil.
  • a switching element, a current attenuating capacitor and a current attenuating resistor are connected in series, and a closed loop circuit switching element is connected in series to a loop circuit in which a discharge resistor is connected in parallel to the closed loop overvoltage suppression.
  • a closing side voltage detection circuit for detecting the voltage of the closing side loop circuit switch element, and the closing side overvoltage suppressing circuit is connected in parallel to the closing side drive switch element. The open / close state of the closing side loop circuit switch element and the closing drive switch element is determined based on the voltage detected by the closing side voltage detection circuit.
  • the drive circuit of the electromagnetic operation mechanism of the present invention since the voltage related to the switch element of the closing side overvoltage suppression circuit is detected, an open failure of the switching element of the closing side overvoltage suppression circuit is detected. If the open-circuit drive coil is excited and an induced electromotive force is generated on the closed-drive coil side, protection can be provided even if an open-circuit failure occurs in the switch element of the closed-circuit overvoltage suppression circuit. There is an effect that the shut-off operation of the switch element can be stopped.
  • FIG. 3 is a circuit diagram illustrating a configuration of a drive circuit of the electromagnetic operation mechanism according to the first embodiment.
  • 3 is a time chart for explaining a closing operation in the first embodiment.
  • 3 is a time chart for explaining the opening operation in the first embodiment.
  • 6 is a circuit diagram illustrating a configuration of a drive circuit of an electromagnetic operation mechanism according to Embodiment 2.
  • FIG. FIG. 6 is a circuit diagram illustrating a configuration of a drive circuit of an electromagnetic operation mechanism according to a third embodiment.
  • the drive circuit of the electromagnetic operation mechanism for example, opens and closes a vacuum valve of a vacuum circuit breaker that is a power device, and energizes the closing and opening driving coils arranged on both sides of the movable iron core.
  • the movable iron core is reciprocated to open and close the open / close contact of the vacuum valve connected to the movable iron core.
  • FIG. FIG. 1 is a circuit diagram showing the configuration of the drive circuit of the electromagnetic operating mechanism according to the first embodiment
  • FIG. 2 is a time chart for explaining the closing operation
  • FIG. 3 shows the opening operation. It is a time chart for explaining.
  • the drive circuit of the electromagnetic operating mechanism includes a movable iron core 1 that opens and closes an open / close contact of the vacuum valve, a closed drive coil 2 that excites and drives (moves) the movable iron core 1, and power to the closed drive coil 2.
  • the closing capacitor 4 to be supplied, the closing drive switch element 5 for controlling the power supply from the closing capacitor 4 to the closing drive coil 2, and the closing drive switch element 5 are closed.
  • a protective relay 7, which is a protective switch element provided between the pole driving coil 2, a current attenuating capacitor 10 a and a current attenuating resistor 10 b are connected in series, and a discharge resistor 10 c is connected in parallel.
  • the closed-side loop circuit 10 and the closed-side loop circuit switch element 6 connected in series to the closed-side loop circuit switch element 6 and the voltage of the closed-side loop circuit switch element 6 are detected.
  • Close In the side voltage detecting circuit 13 is constituted, closing-side over-voltage suppression circuit is connected in parallel to the closing drive switch element 5. Further, in order to prevent the backflow of current, the diode 8 and the diode 9 are respectively connected between the closing drive coil 2 and the protection relay 7, and between the protection relay 7 and the closing loop circuit 10. Is provided.
  • an opening driving coil 3 that excites and drives the movable iron core 1
  • an opening capacitor 14 that supplies electric power to the opening driving coil 3, and electric power from the opening capacitor 14 is opened.
  • Opening driving switch element 15 for controlling the supply of power to coil 3 current attenuating capacitor 20 a and current attenuating resistor 20 b are connected in series, and discharge resistor 20 c is connected in parallel.
  • the open-side overvoltage suppression circuit includes an open-side loop circuit 20 and an open-side loop circuit switch element 16 connected in series to the open-side loop circuit 20.
  • the switch element 15 is connected in parallel.
  • the diode 18 and the diode 19 are respectively connected between the opening driving coil 3 and the opening driving switch element 15, and the opening driving switch element 15 and the opening side loop. It is provided between the circuit 20.
  • the operation of the drive circuit of the electromagnetic operation mechanism according to the first embodiment will be described.
  • the operation in the case of the closing operation will be described with reference to the drive circuit of the electromagnetic operation mechanism shown in FIG. 1 and the closing operation time chart shown in FIG.
  • the protective relay 7 is closed at time t1.
  • the closing side loop circuit switch element 6 of the closing side loop circuit 10 is closed, and at the time t3, the closing drive switch element 5 for driving and controlling the closing drive coil 2 is closed.
  • a current flows from the closing capacitor 4 through a path of the closing drive coil 2, the diode 8, the protection relay 7, and the closing drive switch element 5.
  • the closing drive switch element 5 is opened at time t4, so that the energy accumulated in the closing drive coil 2 is transferred to the diode 8, the diode 9, and the current attenuation resistor 10b.
  • energy is stored in the current attenuating capacitor 10a, and after the energy accumulated in the closing drive coil 2 is transferred to the current attenuating capacitor 10a, the closing side loop circuit switch element 6 is opened at time t5. .
  • the energy stored in the current attenuating capacitor 10a is discharged and gradually attenuated by the closed loop circuit 10 constituted by the discharge resistor 10c and the current attenuating resistor 10b.
  • the closing side loop circuit switch element 6 fails to open before the protective relay 7 is closed and the closing side loop circuit switch element 6 is closed (before time t2), the closing side Until the loop circuit switch element 6 is closed and the closing drive switch element 5 is closed (from time t2 to time t3), the voltage V detected by the closing side voltage detecting circuit 13 is the closing side loop circuit. Since the switch element 6 has an open failure, it becomes the same as the voltage Vc of the closing capacitor 4 and no change occurs. However, when the closing-side loop circuit switch element 6 is not in an open failure, the voltage V detected by the closing-side voltage detection circuit 13 when the closing-side loop circuit switch element 6 is closed is almost equal to It becomes zero.
  • the closing drive switch element 5 When the closing drive switch element 5 is closed (between times t3 and t4) and the closing drive switch element 5 is short-circuited, the closing loop circuit switch element 6 is opened and protected. Until the service relay 7 is opened (between times t5 and t6), the voltage V of the closing side voltage detection circuit 13 is substantially zero. When the closing drive switch element 5 is not short-circuited, the voltage V of the closing side voltage detection circuit 13 is close to the voltage Vc of the closing capacitor 4. That is, when the closing drive switch element 5 is short-circuited at the time t5, the voltage V of the closing side voltage detection circuit 13 becomes substantially zero.
  • the opening-side loop circuit switching element 16 is closed at time t7, and further, the opening driving switch element 15 that controls the opening driving coil 3 is closed at time t8.
  • a current flows through the opening capacitor 14, the opening driving coil 3, the diode 18, and the opening driving switch element 15.
  • the opening driving switch element 15 is opened at time t9, so that the energy accumulated in the opening driving coil 3 is transferred to the diode 18, the diode 19, and the current attenuation resistor 20b.
  • the opening side loop circuit switch element 16 is opened at time t10. .
  • the energy stored in the current attenuating capacitor 20a is discharged and gradually attenuated by the opening side loop circuit 20 constituted by the discharge resistor 20c and the current attenuating resistor 20b. Thereby, the closing operation is completed.
  • the voltage of the closing side loop circuit switching element of the closing side overvoltage suppression open circuit is detected, thereby the closing side loop circuit switching element and Determine the open / close state of the closing drive switch element, and if the closing loop circuit switch element has an open failure, or if the closing drive switch element has a short circuit failure, during the closing operation
  • the protective relay By setting the protective relay in a closed state and controlling so as not to interrupt the current, the protective relay can be protected from a large current, and the closing operation can be safely completed.
  • FIG. FIG. 4 is a circuit diagram illustrating a configuration of a drive circuit of the electromagnetic operation mechanism according to the second embodiment.
  • the difference from the circuit diagram showing the configuration of the drive circuit of the electromagnetic operating mechanism according to the first embodiment shown in FIG. 1 is that a resistor 11 is provided in parallel to the series circuit of the protective relay 7 and the diode 8. It is.
  • Other configurations are the same as those in the first embodiment, and thus description thereof is omitted.
  • the closing capacitor 4 is connected to the closing driving coil 2, the resistor 11, the diode 9, the discharge resistor 10c, and the closing side voltage detection circuit 13 to connect the closing side voltage.
  • the voltage detected by the detection circuit 13 is determined by the closing drive coil 2, the resistor 11, the diode 9, and the discharge resistor 10c.
  • the closing drive switch element 5 is short-circuited or when the closing-side loop circuit switch element 6 is short-circuited, the voltage detected by the closing-side voltage detection circuit 13 is zero.
  • the protection relay 7 can be protected before starting the closing operation. Further, when the closing drive switch element is in an open failure or the closing side loop circuit switch element 6 is in an open failure, the closing drive switch element 5 and the closing side loop are started before the closing operation is started. By closing the circuit switch elements 6 for a certain period of time, the voltage of the closing side voltage detection circuit 13 does not become zero, and there is an open failure of the closing drive switch element 5 or the closing side loop circuit switch element 6. The protection relay 7 can be protected before the closing operation starts.
  • the resistance is provided in parallel with the protective relay, so that the closing drive switch element or the closing switch is closed before the closing operation is started.
  • FIG. 5 is a circuit diagram illustrating a configuration of a drive circuit of the electromagnetic operation mechanism according to the third embodiment.
  • the difference from the circuit diagram showing the configuration of the drive circuit of the electromagnetic operating mechanism according to the first embodiment shown in FIG. 1 is that the open side voltage is applied to the open side loop circuit switch element 16 and the open side drive switch element 15, respectively.
  • a detection circuit 23 and a switch element voltage detection circuit 24 for opening driving are provided.
  • Other configurations are the same as those in the first embodiment, and thus description thereof is omitted.
  • the opening side loop circuit switch element 16 fails before the opening side loop circuit switch element 16 is closed (before time t7), the opening side loop circuit switch element 16 is closed.
  • the voltage V detected by the open-side voltage detection circuit 23 until the open-circuit driving switch element 15 is closed is that the open-side loop circuit switch element 16 is open. Therefore, the voltage becomes the same as the voltage Vo of the opening capacitor 14, and no change occurs.
  • the voltage V detected by the opening side voltage detection circuit 23 when the opening side loop circuit switch element 16 is closed is substantially equal to It becomes zero.
  • the opening side loop circuit switch element 16 has an open failure at the time t8, the voltage V of the opening side voltage detection circuit 23 does not become zero but the voltage of the opening capacitor 14. Same as Vo. As a result, there is a difference between the voltage V detected when the opening side loop circuit switch element 16 is open and when it is in normal operation, so it is possible to determine whether or not the opening side loop circuit switch element 16 is open. Before the opening driving switch element 15 is closed (by time t9), it is possible to detect an opening failure of the opening side loop circuit switch element 16.
  • the opening side loop circuit switching element 16 is closed (between times t7 and t10) and the opening side loop circuit switching element 16 is short-circuited, the opening side loop circuit switching element 16 is Even if the circuit is opened (after time t10), the voltage V of the opening side voltage detection circuit 23 becomes substantially zero, so that it can be determined that the opening side loop circuit switch element 16 is short-circuited.
  • the opening drive switch element 15 when the opening drive switch element 15 is closed before the opening drive switch element 15 is closed (before time t8), the opening drive switch element 15 is closed (from time t8). During t9), since the voltage V of the opening drive switch element voltage detection circuit 24 does not become zero, it can be determined that the open drive switch element 15 has an open failure.
  • the open drive switch element 15 When the opening drive switch element 15 is closed (between times t8 and t9) and the open drive switch element 15 is short-circuited, the open drive switch element 15 is opened ( After time t9), the voltage V of the opening drive switch element voltage detection circuit 24 becomes substantially zero. Thereby, it can be determined that the opening drive switch element 15 is short-circuited.
  • the opening side voltage detection circuit and the opening drive switch are provided for each of the opening side loop circuit switch element and the opening drive switch element.
  • the element voltage detection circuit and detecting the voltage it is possible to determine the failure of the opening drive switching element or the opening side loop circuit switching element during the opening operation.
  • the present invention can be freely combined with each other, or can be appropriately modified or omitted.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Relay Circuits (AREA)
PCT/JP2016/074906 2016-08-26 2016-08-26 電磁操作機構の駆動回路 WO2018037547A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201680088639.7A CN109690718B (zh) 2016-08-26 2016-08-26 电磁操作机构的驱动电路
EP16914221.3A EP3506330B1 (de) 2016-08-26 2016-08-26 Treiberschaltung für elektromagnetischen betriebsmechanismus
PCT/JP2016/074906 WO2018037547A1 (ja) 2016-08-26 2016-08-26 電磁操作機構の駆動回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/074906 WO2018037547A1 (ja) 2016-08-26 2016-08-26 電磁操作機構の駆動回路

Publications (1)

Publication Number Publication Date
WO2018037547A1 true WO2018037547A1 (ja) 2018-03-01

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PCT/JP2016/074906 WO2018037547A1 (ja) 2016-08-26 2016-08-26 電磁操作機構の駆動回路

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CN (1) CN109690718B (de)
WO (1) WO2018037547A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6676226B1 (ja) * 2019-05-22 2020-04-08 三菱電機株式会社 電磁操作装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06164347A (ja) * 1992-11-25 1994-06-10 Fujitsu Denso Ltd スイッチングモジュール
JPH08149809A (ja) * 1994-09-19 1996-06-07 Fuji Electric Co Ltd スイッチング電源回路
JP2004357429A (ja) * 2003-05-29 2004-12-16 Mitsubishi Electric Corp エレベーターの制御装置
JP2013109997A (ja) 2011-11-22 2013-06-06 Mitsubishi Electric Corp 電磁操作機構の駆動回路

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX9304342A (es) * 1992-07-20 1994-04-29 Gec Alsthom Ltd Reconectores automaticos.
JP4192645B2 (ja) * 2003-03-24 2008-12-10 三菱電機株式会社 操作回路およびこれを用いた電力用開閉装置
FR2943170B1 (fr) * 2009-03-10 2013-03-22 Areva T & D Sa Circuit actionneur magnetique
CN102834888B (zh) * 2010-04-02 2015-02-18 三菱电机株式会社 电磁操作机构的驱动电路
DE102012217583A1 (de) * 2012-09-27 2014-03-27 Siemens Aktiengesellschaft Stellvorrichtung für eine Vakuumschaltröhre und Trennanordnung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06164347A (ja) * 1992-11-25 1994-06-10 Fujitsu Denso Ltd スイッチングモジュール
JPH08149809A (ja) * 1994-09-19 1996-06-07 Fuji Electric Co Ltd スイッチング電源回路
JP2004357429A (ja) * 2003-05-29 2004-12-16 Mitsubishi Electric Corp エレベーターの制御装置
JP2013109997A (ja) 2011-11-22 2013-06-06 Mitsubishi Electric Corp 電磁操作機構の駆動回路

Also Published As

Publication number Publication date
EP3506330B1 (de) 2020-09-23
CN109690718A (zh) 2019-04-26
EP3506330A1 (de) 2019-07-03
EP3506330A4 (de) 2019-08-14
CN109690718B (zh) 2020-04-24

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