WO2005017933A1 - Device and method for controlling electric switching devices - Google Patents

Device and method for controlling electric switching devices

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Publication number
WO2005017933A1
WO2005017933A1 PCT/EP2004/004606 EP2004004606W WO2005017933A1 WO 2005017933 A1 WO2005017933 A1 WO 2005017933A1 EP 2004004606 W EP2004004606 W EP 2004004606W WO 2005017933 A1 WO2005017933 A1 WO 2005017933A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
coil
armature
acceleration
current
magnetic
Prior art date
Application number
PCT/EP2004/004606
Other languages
German (de)
French (fr)
Inventor
Bernd Trautmann
Mikko Koivisto
Norbert Mittlmeier
Original Assignee
Siemens Aktiengesellschaft
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

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00Magnets
    • H01F7/06Electromagnets; Actuators including electromagnets
    • H01F7/08Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1844Monitoring or fail-safe circuits
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22Circuit 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
    • H01H47/32Energising current supplied by semiconductor device
    • H01H47/325Energising current supplied by semiconductor device by switching regulator
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H01H47/04Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current
    • H01H2047/046Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current with measuring of the magnetic field, e.g. of the magnetic flux, for the control of coil current

Abstract

The aim of the invention is to optimise the displacement of the armature of an electromagnetic switching device, in particular a contactor or relay, during the closing operation. To achieve this, the acceleration of the armature is controlled in such a way that the contacts or magnetic components of the switching device meet at an appropriately defined speed. The advantage of the invention is that the de-excitation of the solenoid is accelerated by a negative field voltage, reducing the time constant of the control process.

Description

description

Apparatus and method for controlling electrical switchgear

The present invention relates to a drive apparatus for driving a magnetic actuator or an electric switching device, especially a contactor or relay, the / having an armature with a Aufnahmeein- direction for recording or detecting a movement Large respect to the armature and / or of a related contact and a control device for controlling the movement of the armature or the contact. Further, the present invention relates to a corresponding method for controlling a magnetic actuator or an electric switching device.

When switching on protecting the magnetic pulling force must overcome the opening spring acting forces. It should be noted that the spring forces increase when closing the main contacts of a contactor at a defined distance from the closed position to about five times the value. Nevertheless, it must be ensured in this area that the contacts close with a minimum speed, the closing speed but also is not too high. it when the impact velocity of the main contacts is limited to reduce the Einschaltabbrands is advantageous for the lifetime of a contactor. Characterized mechanical bouncing during collision of the contacts and an associated occurrence of arcing is reduced, which increases the electrical life. Further, it is advantageous if the magnet system includes smoothly, leading to an increase in mechanical life.

Such preferred closing movements can basically be attained by a system for controlling the magnet system. Thus, regulation of the magnetic flux is carried out, for example, in documents EP 0,865,660 and DE 195 35 211th Here, either a constant value or a position-dependent value of the magnetic flux is desired. The target value of the magnetic flux must in any case be so high that there is always a tension income can be ensured. By the flow control, although very high impact velocities can be prevented, but even in favorable cases, relatively high impact velocities of about 0.8 m / s are still being achieved, as the simulation shown in FIG. 1 shows In the top diagram of Figure 1, the voltage across the coil by the solid line, the line voltage with a dashed line and the flow is indicated by the dotted line coil. The voltage across the coil is turned on in accordance with the control cycles on and off. Initially, the voltage is turned on across the coil and remains on until a predetermined magnetic flux (solid line in the middle diagram) is reached. The current (dotted line in the top diagram) increases in this time range according to the conventional switch-inductance rapidly. By Abregein the voltage of the power then remains approximately constant and then decreases with decreasing opening between the contacts gradually to very small values ​​from.

The middle diagram of FIG 1 showing the next multiplied by the number of turns N flow (solid line) that is regulated to a constant value, the spring force (broken line) and the magnetic force (dotted line). At the beginning of the closing process, the spring force is greater than the magnetic force, so that the contact carrier with the contacts not yet moved. After a certain time, the magnetic force exceeds the spring force, after which the contacts move relative to each other. Only after this time the flow is regulated to a constant value, so that the contacts can move towards each other. Just before closing, the spring force increases - as mentioned earlier - jumped by a multiple. With the reduction of the voltage Öff- gap upon closing the magnetic force (dotted line) greatly rises.

In the bottom diagram the path (dashed line) and the velocity (solid line) is also plotted over time. The speed of the contacts taking each other on closing steadily, reaching the meeting of the contacts, where the spring force increases sharply, a climax. Because of the increased spring force, the speed is first reduced. However, due to the constant flow it takes until the closing position again slightly to. And the closing is done with the relatively high speed of about 0.8 m / s as mentioned earlier.

In the further document DE 195 44 207, a specific method for controlling the speed of closure of the contacts of a contactor is described. This method has the same disadvantages as 1er simpler Geschwindigkeitsreg-. In case of exceeding the target speed, the controller will turn off and falls below the target speed again. In the specific example, the controller switches during the entire closing movement only once and once a. The electromagnetic time constant and the mass inertia of the mechanism cause very large deviations from the target value of the speed. A simulation of this speed control is shown in Fig. 2 In the individual diagrams, the same sizes as in FIG 1 are shown in their time characteristic. At the beginning of the closing operation, the voltage is turned on at the spool (see solid line on the top diagram of Figure 2). The voltage is only switched off again when the speed of the contacts to each other is 0.5 m / s can be achieved (see solid line in the lowermost graph of Figure 2). While the voltage is turned on across the coil of the current through the coil (dotted line in the top diagram). After switching off the voltage, the current decreases gradually again. Accordingly, the flow of the magnetic flux (solid line in the middle diagram) and the magnetic force (dotted line) increases to an absolute or local maximum until the switch-off time of the voltage. For the velocity (solid line in the lowermost diagram of Figure 2), this means that it continues to increase even after the switch-off of the voltage, since the current and thus the magnetic force goes back very slowly. The velocity achieved upon impact contact welding has a height of about 1.0 m / s and then decreases due to the increased spring force (see dotted line in the middle diagram) to about 0.6 m / sec when meet the components of the magnet system , The path of the contacts to each other, ie the opening of the contacts, taking on closing, similar to the scheme of Figure 1 steadily.

The above-mentioned requirements for the closing movement are not adequately met in both documented arrangements. Thus, the object of the present invention is to provide a driving device and a corresponding method by which a smooth closing of the contacts is possible, for example a contactor.

According to the invention this object is achieved by that can be triggered ervorrichtung for driving a magnetic actuator or an electric switching device, especially a contactor or relay, the / having an armature, with a receiving device for receiving or detecting a movement amount relative to the armature and / or connected therewith contact and a control device for controlling the movement of the armature or of the contact, with the control device, the acceleration of the armature and the contact controlled or regulated.

Further, the invention provides a method for controlling a magnetic actuator or an electric switching device, especially a contactor or relay, the / comprising an armature, by recording or detecting a movement amount relative to the armature and / or of an associated contact and controlling or regulating the movement of the armature or of the contact, wherein the acceleration of the armature and the contact is controlled or regulated.

With the inventive acceleration control, it is possible that the impact velocity s s can be limited to for example, 0.4 m / 0.5 m / s. Knowledge of the spring force curve is not necessary at these speeds.

Preferably, is detected as a movement magnitude of the distance traveled or the position or recorded. Similarly, however, the speed and / or acceleration of the armature can be detected directly.

The provision in the regulating device can be carried out on a reference curve which represents the relationship between speed and position or acceleration and position. It can be predicted that the desired curve is exceeded in a certain position or fallen below and the appropriate decision as a basis for the actuation of the coil are used.

Preferably, the target curve comprises a region including the contact touch and expediently also the magnetic contact. So that the movement of the contacts could be regulated even after the contact touch.

The receiving device may comprise a displacement sensor, is derived from the signal by analog or digital differentiation speed and / or acceleration for the control. In this case, the displacement sensor can be realized Siert by a coil, the current is measured and the magnetic flux is determined from the integral of the induced voltage, so that from this the position of the contacts can be constructed. For this purpose, a special measuring coil can be used, which in the magnetic system of the magnetic actuator or the electrical switching device, that is attached to the drive coil. This measuring coil is then independent of the current-carrying drive coil, so that the flow can be measured with corresponding accuracy.

The driving device may include a processor and a semiconductor switch further, wherein the semiconductor switch can be used for switching on and off a drive coil and the processor for controlling the semiconductor switch is connected thereto.

In addition, the driving device according to the invention may comprise a freewheel circuit in which a current when switching off a drive coil is degraded by a reverse voltage. So that the current can be reduced more rapidly, so that the control is correspondingly less sluggish.

Advantageously, in the control device the distance between two contacts, or two magnetic components for the control of acceleration is berücksichtigbar. For a different control behavior can be achieved than in the open position near the closed position.

The control devices of the invention in their all variants can be integrated where appropriate, directly into electrical switchgear, in particular contactors and relays.

The present invention will now reference to the accompanying

explained drawings, in which:

1 shows simulation diagrams of a system according to the prior art; 2 shows simulation diagrams of an alternative control according to the prior art; 3 shows a block diagram of an inventive controlled contactor coil;

4 shows a reference curve for the control;

5 shows a family of functions for the determination of the path from the current and flux signal;

FIG 6 simulation diagrams for the acceleration control according to the invention and .vorliegenden

FIG 7 is a circuit diagram for rapid de-contactors.

The exemplary examples listed below represent preferred embodiments of the present invention.

After a pure cruise control is too slow, the acceleration is used as a control variable in the inventive method. 3 shows a schematic diagram of this. A contactor coil Ls is supplied from a regulator RG with mains voltage. The control is effected by means of a setpoint curve, in which the speed v is applied to the position s.

The position s as a control variable is determined using a measuring coil LM. To this end, the induced voltage in the measuring coil LM Uϊ and the current flowing through the coil LM current I is detected by means of an evaluation circuit. From the induced voltage of the magnetic flux can be determined by integration. Based on a defined relationship between the flow and the current flowing through the coil LM current I s, the position can be determined. It is passed as a control variable to the regulator RG. According to the process described in more detail below control principle is the force on the armature in the contactor coil Ls or regulated its acceleration to a defined value.

In Figure 4, the range used for the control target value curve "speed is reproduced through Position *. At an air gap of 3.8 mm, in any case before closing the main contacts, the rate should be about 0.5 m / s and maintained until the closing of the solenoid system. It should be noted that the main contacts already contact a predefined piece before striking the armature on the yoke of the magnet system. Starting point is when closing the rest position (off position) with zero velocity of the armature or movable contact. In each position or size of the air gap of the present invention seeks to adjust the acceleration such that the speed at 3.8 mm air gap reaches the value of 0.5 m / s, if this acceleration is maintained constant according to a first embodiment. This means that it is determined in the calculation of a to be used in acceleration value in each measurement time step, whether at the current speed and the current acceleration of the vertex exceed 0.5 m / s to 3.8 mm of the velocity curve or is fallen below, if the current acceleration is maintained. Accordingly, the driving coil of the magnet system is turned on or off.

The setpoint curve shown in FIG 4 can also have a different course. For example, between the closed position (0 mm) and the position of 3.8 mm, in which the speed is regulated s to 0.5 m / s, optionally, other corner points are defined to the mechanics in

Closing the electrical switching device, if necessary to take better account.

In the chosen embodiment, a displacement, velocity or acceleration sensor for detecting the corresponding quantities is not used directly. Rather, the position of the current and flux signal from the measuring coil LM is derived.

5 shows a set of curves in the related mathematical relation Ψ = f (I, x). From the curves can clearly be concluded that an opening width of the contacts with known current and known river. According to a simple approach the road third or fifth degree can be determined from the curves s, using a polynomial. The value of the path s determined on the basis of these curves is transmitted as shown in FIG 3 by the evaluation unit AW to the regulator RG.

Simulation results of the inventive circuit with acceleration control are prepared in the diagrams of FIG 6 ones shown,. The sizes shown correspond to those of Figures 1 and 2. Also, in FIG 6, the switching-on movement of a contactor is shown over time. In the ideal case, the switching-on movement along the predetermined target value curve of Figure 4. In this case runs is controlled to a constant acceleration. However, if points of the reference curve are detected as actual values ​​for the switching-on, so the acceleration is corrected such that in turn the corner point (see arrows in Figure 4) is achieved. Such a deviation from the nominal value curve is particularly set the input rectified AC voltage for driving the drive coil of importance, since the current break-ins result in actual values ​​below the reference curve.

As can be seen the top diagram of Figure 6, the voltage at the drive coil is first turned on, as is the case also in the example of FIG. 1 The current (dotted line) increases correspondingly rapidly. Once the current has reached a certain value, the control will by turning on and off the voltage. It is Please take into account that to the drive coil and a negative voltage, that is, a reverse voltage is applied so that the current or flow may be optionally lowered quickly.

In the middle diagram of FIG 6 can be seen, that is kept constant by the spring force (broken line) during the control of the magnetic force (dotted line). This suggests loading that the force on the armature and its acceleration during power remains the same.

Upon reaching the speed of 0.5 m / s (see solid line in the lowermost graph of Figure 6), the current and thus also regulated the magnetic force slightly downwards, so that the magnetic force of the counteracting spring force equal in magnitude and the speed is thus maintained ,

During the subsequent impact of the contacts to each other when the spring force is increased abruptly, the magnetic force (dotted line in the middle diagram) must be adjusted upward to maintain the speed. This is achieved by turning on the voltage across the coil (solid line in the top graph) or increase the current through the coil (dotted line in the top diagram). The short drop in velocity upon impact of the contacts to each other can thus be compensated for (see the solid line in the lowermost diagram). The distance from the contacts during the switching-path (see dotted line in the lowermost graph of Figure 6) over time substantially corresponding to that of Fig. 1

In the example shown here, an acceleration-tracking control is performed. This means that in a table or curve corresponding to FIG 4, one or more setpoint points (vsoii, ssoii) can be specified. The current values ​​for acceleration, velocity and displacement bakt, vakt and sakt be measured or evaluated. This is according to the formula trest = (SAKT - Ssoll) / ((Vcom + Vakt) / 2) a remaining time trest calculated, until reaching the vertex from the current state (3.8 mm, 0.5 m / s) of FIG 4 remains. From this expiry time is according to the formula

Vsohalt = Vakt + bakt • a switching speed value trest predicted VSCH-alphat, with which the contacts would move towards each other at the switching time when the acceleration is maintained. As a control criterion now is that the voltage across the coil is switched on when Schait <Vsoii is valid. Otherwise, if Vsohait is vsoii>, the voltage across the coil is turned off.

The described acceleration control can be extended in that a further degree of freedom is introduced, which affects in particular at the beginning of power-up. To calculate the speed vsohait the switching time is of the formula

Vschait = Vakt + k • bakt • trest a distance factor k considered. This can be calculated as follows: = (SAKT - sρι) / (sj - SJ-1)

Here, j is a point on the reference curve of FIG. 4. The point j = 1 corresponds in this example, the open position in nude = 0, the point j = 2 corresponds to the position (3.8 mm, 0.5 m / s) and the point j = 3, the closed position corresponding to 0 mm at s =.

At the beginning of the switch-k = 0, while at the end of the switch-k = 1. This means that the cur- rent acceleration bakt at the beginning of the switch-on control has virtually no influence. Rather, the control at the start of the switching-only from the current speed value is vakt dependent, thus resulting in a speed control is determined in this phase. At the end of the on-off procedure, the cruise control is replaced by the acceleration control.

As a variation to the above described acceleration schemes also a very simple acceleration control can be used. This consists merely in the specification of a table or a function of the acceleration as a function of the path bsoiι (s) .The current acceleration bakt and aktu- rush way sakt be measured or evaluated. In order to regulate the voltage across the coil is switched on when bakt <bsoii (sakt) is. In the event that bakt> is bsoii (sakt), the voltage is turned off.

As already mentioned and shown in connection with FIG 5, the position determination from the measurement of the current and flux can be performed. According to a first embodiment can be effected by means of a separate measuring winding, the flow measurement is carried out indirectly via a voltage measurement, in which an induced voltage U is measured at an independent measuring coil LM of FIG. 3 The flow is then calculated by means of numeric or Intregration on the induced voltage Uι determined with the aid of an analog circuit.

According to a second embodiment the voltage measurement for determining the flow is determined directly at the excitation winding or drive coil. For exact Besti - tion of winding voltage Uw done a mathematical correction of the winding resistance of two integration intervals during the current rise without movement. For this purpose, an interval 1 from 1 = 0 to I = 0.5 A and an interval of 2 1 = 0 to I = 1.0 A, for example, specified. For the interval 1, an integral over the current HO and an integral of the voltage IU01 be determined. For the interval 2, a corresponding integral 1102 are also calculated the current and an integral IU02 on the voltage. the ohmic resistance of the coil is calculated from the formula R = (IU02 - - 2 • IU01) / (2 • 1101 1102). With knowledge of the current i can be represented by the formula

Uι = Uw - R • i the induced voltage Ui from the winding voltage Uw be calcu- lated. Thus, the magnetic flux can be more rapidly degraded during Abregein the above-described acceleration control, in a free-running circuit, a reverse voltage must be generated. In the top simulation diagram of FIG 6 this negative offset voltage is indicated as already mentioned. 7 shows this is a circuit diagram according to a contactor coil Ls can be controlled. Via a rectifier GL, a capacitor C and a control circuit RG is (see FIG 3) supplied with direct voltage. A bridge circuit consisting of two transistors Tl and T2 and two diodes Dl and D2, which is also supplied with the DC voltage, the contactor coil Ls is supplied. When switching on the contactor coil, the current flows from the rectifier GL through the transistor Tl, the contactor coil Ls, the transistor Tl diagonally opposite transistor T2 and back to the rectifier. When switching off the contactor coil Ls, the current flows, however, through the diode D2, the contactor coil Ls, the diode D2 diagonally opposite diode Dl and parallel to the rectifier GL capacitor C. The capacitor C has already been loaded to the amplitude of the mains voltage Uc and stands as a counter-voltage source. Is the capacitance of the capacitor C is very large, the rate of energization of the contactor coil Ls is approximately identical to the speed of the de-excitation. However, if the capacitance of the capacitor C is selected small, the offset voltage is increased by reducing the magnetic flux in the contactor coil Ls on the value U'c. Thus, the following energy change results in the condenser:

AE = C - C - (U 'C 2 -U C 2) Due to this rise in voltage on the capacitor, the rate of de-energization is greater than the speed of agitation. The capacitor should be sized so as to coil the maximum magnetic energy occurring Eunax of the contactor can absorb Ls (.DELTA.E C = E imax).

Claims

claims
1. drive apparatus for driving a magnetic actuator or an electric switching device, especially a contactor or relay, the / having an armature with
- a receiving device for receiving or detecting a movement amount relative to the armature and / or of an associated contact and
- (RG) characterized a control means for controlling the movement of the armature and the contact that
- the regulating device (RG), the acceleration of the armature and the contact controlled or regulated.
is 2. Drive apparatus according to claim 1, wherein the amount of movement of the distance covered (s).
3. Drive apparatus according to claim 1 or 2, wherein the control in the control means (RG) by means of a ve Sollkur-, showing the relation of speed and position, is feasible.
4. Drive apparatus according to claim 1 or 2, wherein the control in the control means (RG) by means of a ve Sollkur- illustrating the relationship between acceleration and position, is feasible.
5. according to claim 3 or 4, wherein the target curve includes driving the area of ​​contact touch.
6. Drive apparatus according to one of claims 3 to 5, wherein the target curve includes the area of ​​the magnetic contact.
7. Drive apparatus according to one of the preceding claims, wherein said receiving means comprises a position sensor, can be derived from the signal by analog or digital differentiation speed and / or acceleration.
8 comprises drive apparatus according to claim 7, wherein the displacement sensor is a coil (L s) as measured whose current and whose magnetic flux is determined from the integral of the induced voltage, so that from this the position of the armature or of the contact is determined.
9. Drive apparatus according to one of claims 1 to 6, wherein the receiving device combines a speed sensor environmentally, of the signal by analog or digital differentiation or integration and acceleration of the armature or of the contact can be derived.
10. Drive apparatus according to one of the preceding claims, having a measuring coil (L M) for determining the magnetic flux, which is attachable to a drive coil of the magnetic actuator or the electrical switching device and, regardless of this.
11. Drive apparatus according to one of the preceding claims, comprising a processor and a semiconductor switch, said semiconductor switch for turning on and off a drive coil (L s) can be inserted and the processor for controlling the semiconductor switch is connected thereto.
12. Drive apparatus according to one of the preceding claims, comprising a freewheel circuit in which a current when switching off a drive coil is degradable by a reverse voltage.
13. Drive apparatus according to one of the preceding claims, wherein in the regulating device (RG) the distance between two contacts, or two magnetic components for the control of acceleration is berücksichtigbar.
14. Electrical switching device, in particular a contactor or relay having a drive apparatus according to any one of the preceding claims.
15. A method for driving a magnetic Aktμators or an electrical switching device, particularly a contactor or relay, the / comprising an armature, by
- characterized in controlling or regulating the movement of the armature and the contact that - receiving or detecting an amount of movement relative to the armature and / or of an associated contact and
- controlling the acceleration of the armature or of the contact or regulated.
is 16. The method of claim 15, wherein the movement amount of the distance covered (s).
17. The method of claim 15 or 16, wherein the control based on a target curve representing the relationship between speed and position, is performed.
18. The method of claim 15 or 16, wherein the control based on a target curve representing the relationship between acceleration and position, is performed.
19. The method of claim 17 or 18, wherein the target curve includes the area of ​​contact touch.
17 to 19, wherein the target curve including 20. Method according to any one of claims the area of ​​the magnetic contact.
21. The method according to any one of claims 15 to 20, wherein receiving the amount of movement is effected by a displacement sensor, is derived from the signal by analog or digital differentiation speed and / or acceleration.
22. The method of claim 21, wherein the displacement sensor is a coil (L s) which measured the power and the magnetic flux is determined from the integral of the induced voltage, from which then the position of the armature or con- clock is determined.
23. The method according to any one of claims 15 to 20, wherein the movement amount is determined using a speed sensor.
24. The method according to claim 21 or 22, wherein the magnetic flux through the measuring coil (L M) is measured which is attached to the drive coil of the magnetic actuator or the electrical switching device and is independent of this.
25. The method according to any one of claims 15 to 24, wherein the current when switching off a drive coil (L s) of the magnetic actuator or the electrical switching device is degraded by a reverse voltage in a free-wheeling circuit.
26. The method according to any one of claims 15 to 25, wherein the distance between two contacts, or two magnetic components of the magnetic actuator or the electrical switching device for controlling the acceleration is taken into account.
Figure 1. Figure 2
Spg M Current [A] Voltage of voltage to the coil of the coil .00 θ.50 mains supply voltage current by current through 0:00 the coil the sink
Force [N] N x flow [V] force [N] N x flow [V] N x River spring force magnetic force
Distance [mm] Speed ​​[m / s] Stroke [mm] Speed ​​[m / s]
Time [ms] Time [ms]
2.4
FIG 4
Air gap [mm] 3/4 5 0.3 mm 0.6 mm 1.6 mm 4 mm
0.00 0.50 1.00 1.50 2.00 2.50 Current [A] spg [V] Current [A] - voltage at the coil l.OO 12:50 - - line voltage current through 0:00 the coil
Force [N] N River [V]
N River spring force magnetic force
hwindig-
Time [ms] 4/4
FIG 7
PCT/EP2004/004606 2003-07-17 2004-04-30 Device and method for controlling electric switching devices WO2005017933A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE2003132595 DE10332595B4 (en) 2003-07-17 2003-07-17 Apparatus and method for controlling electrical switchgear
DE10332595.6 2003-07-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20040730526 EP1647040B1 (en) 2003-07-17 2004-04-30 Device and method for controlling electric switching devices

Publications (1)

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CN (1) CN100461323C (en)
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DE102010041214A1 (en) * 2010-09-22 2012-03-22 Siemens Aktiengesellschaft Switching device and method for controlling a switching device
CN103346042A (en) * 2013-07-18 2013-10-09 浙江中凯科技股份有限公司 Electromagnetic system energy-saving device with compensation functions

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WO2009135519A1 (en) * 2008-05-09 2009-11-12 Siemens Aktiengesellschaft Method and device for controlling a magnetic actuator
FR2934413B1 (en) * 2008-07-24 2015-01-02 Schneider Electric Ind Sas Electromagnetic actuator comprising means for self-adapting operation of control and method using such an actuator
DE102008046374B3 (en) * 2008-09-09 2009-12-31 Siemens Aktiengesellschaft Electromagnetic switchgear e.g. relay, has contact system standing in effective connection with magnetic system, and sensor arranged at side of yoke lying opposite to movable armature, where sensor detects impact torque of armature
DE102012000766A1 (en) * 2012-01-18 2013-07-18 Voith Patent Gmbh Control arrangement for controlling the position of an armature of a solenoid actuator and detection arrangement for detecting the position of an armature of a solenoid actuator
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EP1647040A1 (en) 2006-04-19 application
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EP1647040B1 (en) 2011-11-30 grant
DE10332595A1 (en) 2005-02-24 application

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