CN104134571A - Bistable permanent magnet vacuum circuit breaker driving circuit and control method - Google Patents
Bistable permanent magnet vacuum circuit breaker driving circuit and control method Download PDFInfo
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- CN104134571A CN104134571A CN201410368416.9A CN201410368416A CN104134571A CN 104134571 A CN104134571 A CN 104134571A CN 201410368416 A CN201410368416 A CN 201410368416A CN 104134571 A CN104134571 A CN 104134571A
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Abstract
The invention discloses a bistable permanent magnet vacuum circuit breaker driving circuit and a control method. The bistable permanent magnet vacuum circuit breaker driving circuit comprises a switching-on capacitor and a switching-off capacitor, wherein the switching-on capacitor and a switching-on coil form a loop, and the switching-off capacitor and a switching-off coil form a loop. The bistable permanent magnet vacuum circuit breaker driving circuit is characterized in that the switching-on coil and the switching-off capacitor form a loop, and the switching-off coil and the switching-on capacitor form a loop. As the switching-on coil and the switching-off capacitor form the loop and the switching-off coil and the switching-on capacitor form the loop, residual energy on the coils when the switching-on coil and the switching-off coil are powered off is supplied to charge the switching-off capacitor and the switching-on capacitor, the electricity utilization efficiency of the coil driving circuit is improved, and the time for charging an energy storage capacitor is shortened. An independent coil follow current loop is not needed, the circuit structure is simplified, the overall expenses of a controller are reduced, and therefore the bistable permanent magnet vacuum circuit breaker driving circuit and the control method are good in economy.
Description
Technical field
The present invention relates to a kind of bistable permanent magnetic vacuum circuit-breaker drive circuit and control method, belong to bistable permanent magnetic vacuum circuit-breaker field.
Background technology
Permanent magnetic vacuum breaker is due to features such as mechanism action time dispersiveness is little, simple in structure, failure rate is lows, being widely used in field of circuit breakers in recent years, is part and parcel in permanent magnet vacuum breaker controller as the coil driver of controlling permanent-magnet manipulating mechanism action.Bistable permanent magnetic vacuum circuit-breaker is the two coil configuration of closing coil and switching winding, and coil is in power-off moment, because the electric current in inductance can not suddenly change, therefore coil need to have continuous current circuit.Conventional coil drive circuit is at a closing coil and switching winding two ends fly-wheel diode in parallel, and coil can be discharged the electric energy on coil by fly-wheel diode in the time of power-off.Can cause like this waste of electric energy, storage capacitor discharge voltage be fallen larger, capacitor charging time extends; and due to when the suddenly power-off; coil two ends can produce larger induced voltage, therefore often will, in the corresponding protective circuit that absorbs of coil two ends parallel connection, increase the complexity of circuit.
Summary of the invention
Goal of the invention: the present invention proposes a kind of bistable permanent magnetic vacuum circuit-breaker drive circuit and control method, has shortened the charging interval of storage capacitor in power circuit, improves the utilization ratio of electric energy.
Technical scheme: the technical solution used in the present invention is a kind of bistable permanent magnetic vacuum circuit-breaker drive circuit, comprise with closing coil and form the combined floodgate electric capacity in loop and the separating brake electric capacity with switching winding formation loop, it is characterized in that, described closing coil also forms loop with separating brake electric capacity, and described switching winding also forms loop with combined floodgate electric capacity.
Preferably, described closing coil forms loop by the first diode and the separating brake electric capacity of series connection.
Preferably, described switching winding forms loop by the second diode and the combined floodgate electric capacity of series connection.
The bistable permanent magnetic vacuum circuit-breaker drive circuit control method that belt coil dump energy is utilized, in the time of closing coil power-off, the dump energy in its coil is by the first diode pair separating brake capacitor charging; In the time of switching winding power-off, the dump energy in its coil is by the second diode pair combined floodgate capacitor charging.
Beneficial effect: the present invention is by forming loop by closing coil and separating brake electric capacity, and switching winding and combined floodgate electric capacity formation loop, dump energy while utilizing closing coil and switching winding power-off in coil is given respectively separating brake electric capacity and combined floodgate capacitor charging, can improve coil driver efficiency, shorten the storage capacitor charging interval, and owing to not needing independent coil continuous current circuit to simplify circuit structure, save the spending of controller entirety, economical and energy saving is good.
Brief description of the drawings
Fig. 1 is circuit diagram of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand these embodiment is only not used in and limits the scope of the invention for the present invention is described, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the amendment of various equivalents of the present invention.
As shown in Figure 1, closing coil L1, an IGBT pipe Q1 and combined floodgate capacitor C 1 have formed a loop that drives closing coil L1, IGBT pipe Q1 collector and emitter two ends have been also in parallel earial drainage diode.The one IGBT pipe Q1 controls the break-make in this loop, the namely break-make of electric current in closing coil L1.
Switching winding L2, the 2nd IGBT pipe Q2 and separating brake capacitor C 2 have formed a loop that drives switching winding L2, the 2nd IGBT pipe Q2 collector and emitter two ends have been also in parallel earial drainage diode.The 2nd IGBT pipe Q2 controls the break-make in this loop, the namely break-make of electric current in switching winding L2.
In addition, one end of closing coil L1 is connected with one end of separating brake capacitor C 2, the other end of closing coil L1 is connected with the other end of separating brake capacitor C 2 by the first sustained diode 1, and wherein the conducting direction of the first sustained diode 1 is consistent with the sense of current in closing coil L1.One end of switching winding L2 is connected with one end of combined floodgate capacitor C 1, the other end of switching winding L2 is connected with the other end of combined floodgate capacitor C 1 by the second sustained diode 2, and wherein the conducting direction of the second sustained diode 2 is consistent with the sense of current in switching winding L2.
The explanation foregoing circuit operation principle as an example of feed motion example below.Described combined floodgate capacitor C 1 was first charged by external charging circuit before permanent magnetic vacuum breaker action, moved required threshold voltage and stopped charging later when exceeding operating mechanism, and power storage is waited for circuit breaker action in electric capacity.In the time that circuit breaker need to move, send reclosing command by controller, by special drive circuit control the one IGBT pipe Q1 conducting, combined floodgate capacitor C 1 is discharged to closing coil L1 by an IGBT pipe Q1.After completing feed motion, turn-offs operating mechanism an IGBT pipe Q1, now because the electric current on coil can not suddenly change, coil needs afterflow, the present embodiment is by being connected closing coil L1 with separating brake capacitor C 2, closing coil L1 can be charged to separating brake capacitor C 2 by the first sustained diode 1 in the time of needs afterflow, dump energy in coil is utilized, good solution afterflow problem and the power saving of coil.Once need separating brake when action upper, because closing coil L1 has been discharged into part electric energy in separating brake capacitor C 2, make to have stored certain magnitude of voltage in separating brake capacitor C 2, when now again separating brake capacitor C 2 charging, just can shorten the charging interval, reduce rechargeable electrical energy.In like manner, when sub-switching operation, switching winding L2 also can charge to combined floodgate capacitor C 1, so moves in circles, greatly improve efficiency of energy utilization, shortened capacitor charging required time, simplified circuit structure simultaneously, reduce the spending of controller entirety, there is good economy and energy-saving effect.
Claims (4)
1. a bistable permanent magnetic vacuum circuit-breaker drive circuit, comprise with closing coil and form the combined floodgate electric capacity in loop and the separating brake electric capacity with switching winding formation loop, it is characterized in that, described closing coil also forms loop with separating brake electric capacity, and described switching winding also forms loop with combined floodgate electric capacity.
2. bistable permanent magnetic vacuum circuit-breaker drive circuit according to claim 1, is characterized in that, described closing coil forms loop by the first diode and the separating brake electric capacity of series connection.
3. bistable permanent magnetic vacuum circuit-breaker drive circuit according to claim 1, is characterized in that, described switching winding forms loop by the second diode and the combined floodgate electric capacity of series connection.
4. a bistable permanent magnetic vacuum circuit-breaker drive circuit control method, is characterized in that,
In the time of closing coil power-off, the dump energy in its coil is to separating brake capacitor charging;
In the time of switching winding power-off, the dump energy in its coil is to combined floodgate capacitor charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410368416.9A CN104134571A (en) | 2014-07-30 | 2014-07-30 | Bistable permanent magnet vacuum circuit breaker driving circuit and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410368416.9A CN104134571A (en) | 2014-07-30 | 2014-07-30 | Bistable permanent magnet vacuum circuit breaker driving circuit and control method |
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| Publication Number | Publication Date |
|---|---|
| CN104134571A true CN104134571A (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410368416.9A Pending CN104134571A (en) | 2014-07-30 | 2014-07-30 | Bistable permanent magnet vacuum circuit breaker driving circuit and control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114006401A (en) * | 2021-10-25 | 2022-02-01 | 无锡市欧瑞杰电子科技有限公司 | Double-coil permanent magnet driving circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101504898A (en) * | 2009-01-23 | 2009-08-12 | 东南大学 | Permanent magnet contactor control apparatus having auxiliary contacts |
| US20120292998A1 (en) * | 2010-04-02 | 2012-11-22 | Mitsubishi Electric Corporation | Drive circuit for electromagnetic manipulation mechanism |
| CN202917401U (en) * | 2012-10-31 | 2013-05-01 | 北京科锐配电自动化股份有限公司 | Bi-stable state permanent magnetic switch drive circuit |
| CN103151224A (en) * | 2013-02-07 | 2013-06-12 | 滁州学院 | Smooth switching control device and control method of dual-coil bi-state permanent magnetic contactor |
-
2014
- 2014-07-30 CN CN201410368416.9A patent/CN104134571A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101504898A (en) * | 2009-01-23 | 2009-08-12 | 东南大学 | Permanent magnet contactor control apparatus having auxiliary contacts |
| US20120292998A1 (en) * | 2010-04-02 | 2012-11-22 | Mitsubishi Electric Corporation | Drive circuit for electromagnetic manipulation mechanism |
| CN202917401U (en) * | 2012-10-31 | 2013-05-01 | 北京科锐配电自动化股份有限公司 | Bi-stable state permanent magnetic switch drive circuit |
| CN103151224A (en) * | 2013-02-07 | 2013-06-12 | 滁州学院 | Smooth switching control device and control method of dual-coil bi-state permanent magnetic contactor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114006401A (en) * | 2021-10-25 | 2022-02-01 | 无锡市欧瑞杰电子科技有限公司 | Double-coil permanent magnet driving circuit |
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Application publication date: 20141105 |