EP2200050B1 - Unité de traitement comportant des moyens de commande d'un actionneur électromagnétique et actionneur électromagnétique comportant une telle unité de traitement. - Google Patents

Unité de traitement comportant des moyens de commande d'un actionneur électromagnétique et actionneur électromagnétique comportant une telle unité de traitement. Download PDF

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Publication number
EP2200050B1
EP2200050B1 EP09354048.2A EP09354048A EP2200050B1 EP 2200050 B1 EP2200050 B1 EP 2200050B1 EP 09354048 A EP09354048 A EP 09354048A EP 2200050 B1 EP2200050 B1 EP 2200050B1
Authority
EP
European Patent Office
Prior art keywords
processing unit
excitation pulse
cycle
control means
unit according
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP09354048.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2200050A1 (fr
Inventor
Cédric BRICQUET
Eric Fernandez
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
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Filing date
Publication date
Application filed by Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP2200050A1 publication Critical patent/EP2200050A1/fr
Application granted granted Critical
Publication of EP2200050B1 publication Critical patent/EP2200050B1/fr
Active legal-status Critical Current
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F2007/1888—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings using pulse width modulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/10—Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current
    • 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
    • H01H47/32—Energising current supplied by semiconductor device
    • H01H47/325—Energising current supplied by semiconductor device by switching regulator
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts

Definitions

  • the invention relates to a processing unit comprising control means for acting on at least one excitation coil for moving a movable armature of an electromagnetic actuator, said control means generating a periodic voltage wave frame comprising at least one excitation coil less n alternans rectified.
  • the invention also relates to an electromagnetic actuator comprising such a processing unit.
  • the function of an electromagnetic actuator is to convert electrical energy into mechanical energy.
  • Mechanical energy is used to set a mechanical load in motion.
  • the displacement of the mechanical load is generally done by opposing forces, called load forces.
  • an electromagnetic actuator is related to its conditions of use. Certain external conditions depend in particular on the nature and / or the number of devices to be operated. Other external conditions depend on the operating temperature of the actuator. Finally, the operation of the actuator also depends on the supply voltage range, the supply voltage may be a constant or alternating voltage. Other internal conditions depend in particular on the state of aging of the actuator.
  • the control law of the actuator must be capable of generating a force ensuring the movement of the mechanical load in a wide range. operating range.
  • the actuator In practice, for example, the actuator must be able to move the mechanical load in the case where the resistant forces are maximum and the supply voltage is minimal.
  • some known solutions determine the energy sent into the actuator under the most unfavorable operating conditions: the largest number of devices to operate, maximum wear, minimum voltage and high operating temperature.
  • the electromagnetic actuator is sized to close under unfavorable conditions, then conversely when it closes under favorable conditions, the energy sent will be disproportionate and may induce malfunctions such as rebounds of the parts of hanging. These rebounds can cause damage to the mechanical structure of the actuator.
  • the current systems then send a control energy that is too high compared to the resistance offered by the mechanism to be controlled.
  • the invention therefore aims to overcome the disadvantages of the state of the art, so as to provide a processing unit capable of generating a versatile control law.
  • the control means of the processing unit generate a periodic voltage wave frame comprising three or at least five rectified alternations, each alternation comprising at least a first and at least a second excitation pulse order, the pulsed excitation commands being adjusted by a synchronization signal with respect to the voltage waves.
  • the first pulse excitation order substantially starts at a voltage zero of one half cycle
  • the second pulse drive pulse ends substantially at a voltage zero of said half cycle.
  • the electrical energy generated by the pulse orders of excitation of a first halfwave is less than the electrical energy generated by the pulse orders of excitation of a second alternation posterior to said first alternation.
  • At least one rectified alternation comprises a first and a second excitation pulse command, the second excitation pulse command beginning substantially at the end of the first excitation pulse command.
  • control means generate at least one rectified alternation comprising at least a third excitation pulse command, said at least third excitation pulse command being temporally interposed between said first and second pulse orders.
  • control means comprise a power switch connected to the mains by means of a rectifier bridge making it possible to obtain a supply voltage in the form of a single or double alternating rectified sinus function.
  • control means generates a periodic voltage wave frame comprising at least five rectified alternations.
  • control means (21) generates a periodic voltage wave frame having a duration equal to or greater than 50 ms.
  • the processing unit comprises a microcontroller connected to internal storage means, said microcontroller being powered by a power supply circuit.
  • the processing unit comprises a varistor intended to be connected upstream to the sector.
  • the processing unit comprises means for detecting the zero crossing of the network voltage, a synchronization signal being generated for adjusting the excitation pulse commands.
  • An electromagnetic actuator comprises a processing unit as defined above.
  • Said actuator comprises a movable armature and a magnetic fixed yoke, said movable armature being movable between an open position and a closed position.
  • At least one excitation coil is connected to the control means of the processing unit, said coil being intended to cause the displacement of the mobile armature.
  • the electromagnetic actuator 100 comprises a movable armature 12 and a fixed magnetic yoke 11.
  • the movable armature 12 and the fixed yoke 11 thus form a deformable magnetic circuit 1 having a variable air gap.
  • the mobile armature 12 is mounted in the fixed yoke 11.
  • the mobile armature 12 is mounted to slide axially along a longitudinal axis Y of the fixed yoke 11.
  • Said movable armature 12 moves between an open position K1 and a closed position K2.
  • the closed position K2 as represented on the figure 2 usually corresponds to the minimum of the gap between the movable armature 12 and the fixed yoke 11 and the open position corresponds to the maximum of the gap.
  • the electromagnetic actuator 100 also comprises an excitation coil 3 in which an excitation current I can flow.
  • the excitation coil 3 is then intended to create a magnetic field generating a driving force Fm causing a displacement of the armature.
  • the excitation coil 3 is connected to control means 21 of a processing unit 2.
  • the electromagnetic actuator comprises a processing unit 2. As shown in FIGS. Figures 1 and 2 the electromagnetic actuator 100 is monostable. The inverse movement of opening of the mobile armature 12 is then generated by a return system, such as a return spring, not shown.
  • the processing unit 2 according to a preferred embodiment of the invention shown in the Figure 7B , comprises control means 21 for producing voltage pulses at the terminals of the excitation coil 3.
  • control means 21 are intended to generate a periodic voltage wave frame comprising at least n rectified Si alternans.
  • the periodic voltage wave field has a duration equal to or greater than 50 ms.
  • each alternation comprises at least a first and at least a second excitation pulse order S A , S B.
  • the first excitation pulse command S A substantially starts at a voltage zero of an alternation Si and the second excitation pulse command S A substantially ends at a voltage zero of said alternation.
  • the electrical energy generated by the pulse orders of excitation of a first halfwave Si is less than or equal to the electrical energy generated by the pulse excitation orders of a second alternation S i + 1 subsequent to said first S i alternately.
  • the last alternation S n rectified wave frame sent by the control means 21 comprises a second excitation pulse order S B beginning substantially at the end of the first excitation pulse command S A.
  • control means 21 Preferably, to ensure efficient actuation in the greatest number of situations, the control means 21 generate a periodic voltage wave frame comprising at least five successive rectified alternations.
  • control means 21 generate at least one rectified alternation comprising at least one third pulse excitation command S C.
  • Said at least third excitation pulse sequence S C is temporally interleaved between said first and second pulse commands S A , S B.
  • the electromagnetic actuator is intended for the remote control of a circuit breaker, a differential circuit breaker and accessories (MN, MX, OF ).
  • the processing unit 2 comprises in particular a microcontroller 23 connected to internal storage means 22.
  • the processing unit comprises a supply circuit 24 of the microcontroller 23.
  • the control means 21 of the coil 3 comprises a switch power Z6 connected to the mains via a bridge rectifier D29.
  • the power switch Z6 is preferably a transistor.
  • the rectifier bridge D29 preferably comprises four diodes mounted head-to-tail and makes it possible to obtain a supply voltage in the form of a double-wave rectified sinus function.
  • the microcontroller 23 controls the opening and closing of the power switch Z6 via a control interface 25.
  • the rectifier bridge makes it possible to obtain a supply voltage in the form of a single-wave rectified sinus function.
  • the processing unit 2 comprises means 26 for detecting the zero crossing of the mains voltage.
  • a synchronization signal is useful for generating the voltage waves and adjusting the excitation pulse commands and guaranteeing the closing dynamics of adjacent devices.
  • the detection at the zero voltage crossing is made by the internal comparator of the microprocessor. According to an alternative embodiment, it can be detected with the aid of an external comparator or a Zener diode.
  • a freewheeling diode D15 is preferably connected in parallel across the coil 3.
  • a position sensor can be connected to the microcontroller 23 in order to stop the actuation control at the end of travel of the core 12.
  • the processing unit 2 comprises a varistor RV is connected upstream.
  • the processing unit 2 intended to generate a control law as represented on the Figures 4-6 may be included in an electromagnetic actuator 101 having an E-shaped magnetic structure.
  • Figures 8A and 8B such an electromagnetic actuator is shown respectively in an open position and a closed position.
  • the processing unit 2 intended to generate a control law as represented on the Figures 4-6 can be included in an electromagnetic actuator as described in the patent application entitled “Electromagnetic actuator of a remote control block, and block comprising it” filed today by the applicant.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Linear Motors (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Valve Device For Special Equipments (AREA)
  • Electromagnets (AREA)
  • Relay Circuits (AREA)
EP09354048.2A 2008-12-19 2009-11-10 Unité de traitement comportant des moyens de commande d'un actionneur électromagnétique et actionneur électromagnétique comportant une telle unité de traitement. Active EP2200050B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0807155A FR2940501B1 (fr) 2008-12-19 2008-12-19 Unite de traitement comportant des moyens de commande d'un actionneur electromagnetique et actionneur electromagnetique comportant une telle unite de traitement

Publications (2)

Publication Number Publication Date
EP2200050A1 EP2200050A1 (fr) 2010-06-23
EP2200050B1 true EP2200050B1 (fr) 2017-12-20

Family

ID=40852137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09354048.2A Active EP2200050B1 (fr) 2008-12-19 2009-11-10 Unité de traitement comportant des moyens de commande d'un actionneur électromagnétique et actionneur électromagnétique comportant une telle unité de traitement.

Country Status (4)

Country Link
EP (1) EP2200050B1 (zh)
CN (1) CN101783644B (zh)
ES (1) ES2658948T3 (zh)
FR (1) FR2940501B1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101546297B1 (ko) * 2010-10-26 2015-08-21 지멘스 악티엔게젤샤프트 전자기 스위칭 디바이스를 위한 회로
EP2850632B1 (en) * 2012-12-18 2017-11-01 Siemens Aktiengesellschaft Regulated power supply assembly for use in electrical switch
FR3004581B1 (fr) * 2013-04-12 2017-04-07 Schneider Electric Ind Sas Contacteur electrique et procede de pilotage d'une bobine electromagnetique dans un tel contacteur
FR3065110B1 (fr) 2017-04-11 2019-04-19 Schneider Electric Industries Sas Procede et dispositif de commande d'un actionneur, et appareil de protection electrique comportant un tel dispositif

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1028575C (zh) * 1989-09-05 1995-05-24 张凡 磁保持式牵引电磁铁
US5406440A (en) * 1992-05-01 1995-04-11 Allen-Bradley Company, Inc. Soft-closure electrical contactor
FR2691855A1 (fr) * 1992-05-26 1993-12-03 France Bobinage Procédé et dispositifs d'alimentation d'un enroulement sous une tension quelconque.
US5315471A (en) * 1992-06-01 1994-05-24 Westinghouse Electric Corp. Coil current regulator with induced flux compensation in an electromagnetic contactor system

Also Published As

Publication number Publication date
FR2940501A1 (fr) 2010-06-25
CN101783644B (zh) 2015-12-02
ES2658948T3 (es) 2018-03-13
FR2940501B1 (fr) 2022-05-13
EP2200050A1 (fr) 2010-06-23
CN101783644A (zh) 2010-07-21

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