CN107993861A - The energy storage device and divide-shut brake control method of a kind of electromagnetic repulsion force operating mechanism - Google Patents
The energy storage device and divide-shut brake control method of a kind of electromagnetic repulsion force operating mechanism Download PDFInfo
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- CN107993861A CN107993861A CN201711148860.XA CN201711148860A CN107993861A CN 107993861 A CN107993861 A CN 107993861A CN 201711148860 A CN201711148860 A CN 201711148860A CN 107993861 A CN107993861 A CN 107993861A
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- Prior art keywords
- energy
- storage
- operating mechanism
- repulsion force
- electromagnetic repulsion
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The present invention relates to the energy storage device and divide-shut brake control method of a kind of electromagnetic repulsion force operating mechanism, specifically disclose a kind of circuit breaker electric magnetic repulsion operating mechanism of achievable reclosing function and a kind of divide-shut brake control method, it can realize single combined floodgate, single separating brake and reclosing operation, and after the completion of operation, automatic fast energy storage, into the hot standby state of next operation.Control circuit of the invention is simple, reliability is high, meets that the Fast mechanical switch in high voltage DC breaker possesses the requirement of reclosing function.
Description
Technical field
The present invention relates to the energy storage device and divide-shut brake control method of a kind of electromagnetic repulsion force operating mechanism, belong to power equipment
Technical field.
Background technology
For the demand for meeting the fast development of multiterminal element and DC grid and DC line fault is quickly protected, ensure each
Reliable power supply of the current conversion station to regular link.It is very necessary that dc circuit breaker possesses reclosing function.When DC side breaks down
When, dc circuit breaker energy quick acting switching-off is with isolated fault circuit；After a period of time, when dc circuit breaker controller, to receive direct current defeated
The reclosing order that electric system station control level controller issues, performs combined floodgate dc circuit breaker, if Failure elimination, dc circuit breaker
Keep "on" position, reclosing success；If failure does not eliminate, dc circuit breaker need again separating brake with isolated fault circuit.This
Invention propose can the electromagnetic repulsion mechanism of reclosing can realize Fast mechanical switch reclosing function, to meet DC grid
Demand.
The operation principle of electromagnetic repulsion force operating mechanism is described as follows：Photo thyristor in the 1st energy-storage module is triggered, makes
First coil electric discharge of the recharged capacitance into operating mechanism body, first coil and operating mechanism body in 1 energy-storage module
In metal dish between produce electromagnetic repulsion force so that drive metal dish drive mechanical switch moving contact to away from first coil side
To movement, electromagnetic drive is realized；After a certain period of time, photo thyristor in the 2nd energy-storage module is triggered, makes the 2nd energy-storage module
Second coil discharge of the middle recharged capacitance into operating mechanism body, is produced between the metal dish in the second coil and operating mechanism
Raw electromagnetic repulsion force, so that metal dish drives mechanical switch moving contact to slow down, realizes electromagnetic buffer.
It can be seen from the above, electromagnetic repulsion force operating mechanism, which completes a separating brake or closing operation, needs 2 energy-storage module difference
Electromagnetic drive and electromagnetic buffer are completed, the strong mechanical life hit, improve mechanism of moving contact is avoided by buffering.Consider
Electromagnetic repulsion force operating mechanism operates the energy for once needing 1~2kJ, is subsequent operation to complete energy storage within the Millisecond time
Prepare, then charge power supply power is up to MW grades, this is clearly unpractical.
The content of the invention
The object of the present invention is to provide the energy storage device and divide-shut brake control method of a kind of electromagnetic repulsion force operating mechanism, to
Solve the problems, such as that existing electromagnetic repulsion force operating mechanism and control method can not meet breaker reclosing requirement.
To achieve the above object, the solution of the present invention includes：
A kind of energy storage device of electromagnetic repulsion force operating mechanism for breaker of the present invention, including first energy-storage units,
Second energy-storage units, first energy-storage units include at least two energy-storage modules, and second energy-storage units include at least two energy storage moulds
Block, the output interface of each energy-storage module of first energy-storage units is in parallel, for connecting breaker operation mechanism first coil；Second
The output interface of each energy-storage module of energy-storage units is in parallel, for connecting the second coil of breaker operation mechanism.
The problem of being difficult to meet reclosing requirement for the responsiveness of existing electromagnetic repulsion force operating mechanism, the present invention propose
The electromagnetic repulsion force operating mechanism and its control method of a kind of achievable reclosing, it is in parallel and coordinate control to pass through multiple energy-storage modules
System, can realize the quick divide-shut brake of electromagnetic repulsion force operating mechanism.Control circuit of the present invention is simple, the degree of automation is high, reliable
Property it is high.
Further, the first energy-storage units, second energy-storage units include three energy-storage modules.
Each coil is in parallel with 3 energy-storage modules in breaker operation mechanism, and the enough breakers of energy storage realize that 3 contacts are moved
Make, therefore the electromagnetic repulsion mechanism with this energy storage device can make the reclosing mistake of corresponding breaker realization " split-choose-point "
Journey.
Further, each energy-storage module also includes charging interface, the charging interface of each energy-storage module
It is connected respectively with higher level's circuit for charging to the energy-storage module.
Each energy-storage module is furnished with independent charging circuit, can charge at once after the completion of electric discharge, is as early as possible next time
Action is ready.
Further, the energy-storage module includes energy-storage travelling wave tube, is equipped between energy-storage travelling wave tube and output interface and is used to discharge
The switch element of control.
Further, the energy-storage travelling wave tube is also parallel with the inspection switch for maintenance.
Inspection switch is carried in energy-storage module, it is convenient to bleed off the dump energy in energy-storage module before maintenance, ensure fortune
Dimension safety.
Further, the energy-storage travelling wave tube is capacitance.
Further, the switch element is photo thyristor.
A kind of divide-shut brake control method based on electromagnetic repulsion force operating mechanism of the present invention, based on electromagnetic repulsion force operating mechanism
Breaker in separating brake, by part energy-storage module for breaker operation mechanism coil energize；In reclosing, by another portion
Energy-storage module is divided to be energized for the coil of breaker operation mechanism.
The method of the present invention is when electromagnetic repulsion force breaker is in disjunction of every execution or closed action, by different energy storage moulds
Block is corresponding driving, buffer coil power supply, breaker actuation is reduced electromagnetic repulsion force without waiting for energy-storage module accumulation of energy again
Requirement of the breaker in frequent movement to charging system, between the time that can farthest shorten breaker single motion
Every.
Further, when separating brake again is needed after reclosing, during by different from separating brake, reclosing when energy-storage module, or
The energy-storage module that person has completed charging energizes for the coil of breaker operation mechanism.
During reclosing, if failure is permanent fault, separating brake immediately is also needed after closing a floodgate, if there is energy-storage module at this time
Energy storage has been completed, then can be re-used for separating brake energy supply.Make the action of breaker reclosing from accumulation of energy time effects, it is reliable real
Application of the electromagnetic repulsion force breaker in reclosing control is showed.
Further, after the completion of each self discharge of energy-storage module, independently charge.
Each energy-storage module is furnished with independent charging circuit, can charge at once after the completion of electric discharge, is as early as possible next time
Action is ready.
Brief description of the drawings
Fig. 1 is a kind of circuit breaker electric magnetic repulsion operating mechanism structure chart of achievable reclosing；
Fig. 2 is energy-storage module cut-away view.
Embodiment
The present invention will be further described in detail below in conjunction with the accompanying drawings.
A kind of circuit breaker electric magnetic repulsion operating mechanism structure chart of achievable reclosing as shown in Figure 1, including energy storage mould
Block 101~106, controller 110, voltage transformation module 120, operating mechanism 130, operating mechanism first coil 131, electromagnetism action
Parts metals disk 132, the second coil of operating mechanism 133；The charging interface of energy-storage module 101~106 and voltage transformation module 120
Output interface be connected, the output interface of energy-storage module 101~103 is connected with operating mechanism first coil 131, energy-storage module
104~106 output interface is connected with the second coil of operating mechanism 133, controller 110 respectively with each energy-storage module 101~
106 control terminal is connected by optical signal line, electromagnetism action parts metals disk 132 and breaker in the operating mechanism 130
Moving contact mechanically connects.
The first coil 131, positioned at operating mechanism middle and upper part, in separating brake as driving coil, the conduct when closing a floodgate
Buffer coil；Second coil 133, positioned at operating mechanism middle and lower part, in separating brake as buffer coil, the conduct when closing a floodgate
Driving coil；The metal dish 132, between 131 and second coil 133 of first coil, during "on" position, metal dish 132
It is close to first coil 131, during gate-dividing state, metal dish 132 is close to the second coil 133.
As other embodiment, the quantity of energy-storage module can also increase or decrease, and often realize the disjunction of a breaker
Or two energy-storage modules of needs that close a floodgate, one is used to drive metal dish 132 to drive for the corresponding coil power supply in operating mechanism 130
Breaker movable contact acts, and one is metal dish 132 and breaks for providing energy for another coil power supply in operating mechanism 130
Road device movable contact slows down to protect contact；So, often increasing by two energy-storage modules, (a connection first coil 131, one is used for
Connect the second coil 133), so that it may so that breaker realizes once quick on-off action without waiting energy storage more.Energy storage
Depending on the factor such as the needs of control and cost, the present invention does not limit the quantity of module.
Energy-storage module cut-away view as shown in Figure 2, including +/- charging interface, +/- output interface, diode D1, electricity
Hinder R1, photo thyristor T1, inspection switch K1, storage capacitor C1；Described+charging interface is connected with the anode of diode D1, and two
The cathode of pole pipe D1 is connected by resistance R1 with the anode of photo thyristor T1, the cathode of photo thyristor T1 and+output interface
It is connected ,-charging interface is connected with-output interface, and the cathode of diode D1 is connected with-charging interface by inspection switch K1, light
The anode of control thyristor T1 is connected by storage capacitor C1 with-output interface.Inspection switch K1 is used to overhaul to energy-storage module
Closed when safeguarding, by the electric quantity consumption in storage capacitor C1 on resistance R1, ensure O＆M safety.
Electromagnetic repulsion force operating mechanism with this energy storage device be used for breaker automatic reclosing when control method such as
Under：
During separating brake, the corresponding optical signal of the control of controller 110 is triggered in the energy-storage module 101 in the energy storage device
Photo thyristor turns on, and first coil 131 of the storage capacitor in the energy-storage module 101 into the operating mechanism 130 is put
Electricity, realizes the electromagnetic drive to metal dish 132 in the operating mechanism 130, and metal dish 132 is acted on to the second line by electromagnetic repulsion force
The movement of 133 directions is enclosed, and drives breaker movable contact to move, disconnects breaker；After a certain period of time, the controller 110
The corresponding optical signal of control triggers the photo thyristor conducting in the energy-storage module 104 in the energy storage device, the energy-storage module
Second coil 133 of the storage capacitor into the operating mechanism 130 in 104 discharges, and realizes metal in the operating mechanism 130
The electromagnetic buffer of disk 132, so far, separating brake process terminate.
When needing reclosing, the corresponding optical signal of the control of controller 110 triggers the energy storage mould in the energy storage device
Photo thyristor conducting in block 104, storage capacitor in the energy-storage module 104 into the operating mechanism 130 second
Coil 133 discharges, and realizes the electromagnetic drive to metal dish 132 in the operating mechanism 130, and metal dish 132 is made by electromagnetic repulsion force
Moved with to 131 direction of first coil, and drive breaker movable contact towards the direction movement closed a floodgate；After a certain period of time, institute
State the photo thyristor that the corresponding optical signal of the control of controller 110 is triggered in the energy-storage module 101 in the energy storage device to turn on, institute
First coil 131 of the storage capacitor into the operating mechanism body stated in energy-storage module 101 is discharged, and realizes the actuating machine
The electromagnetic buffer of metal dish 132 in structure 130, so far, breaker contact point combine, and making process terminates.The combined floodgate of this reclosing
Process thinks to have been subjected to enough time, and the energy-storage module 101 and energy-storage module 104 that when separating brake uses have completed accumulation of energy, Ke Yizai
Secondary use.If close a floodgate, energy-storage module 101 and energy-storage module 104 not yet complete energy storage, then should be selected such that and finished with other accumulation of energys
Energy-storage module.
At this time, the reclosing success if Failure elimination；If failure still suffers from, quick acting switching-off again is needed.Made during combined floodgate
The electricity in storage capacitor in energy-storage module 101 and energy-storage module 104 has exhausted, and accumulation of energy can not be completed in the short time,
Therefore again separating brake when need to use and completed the energy-storage module of accumulation of energy, step is as follows.
The corresponding optical signal of the control of controller 110 triggers the light-operated crystalline substance in the energy-storage module 102 in the energy storage device
Brake tube turns on, and first coil 131 of the storage capacitor in the energy-storage module 102 into the operating mechanism 130 is discharged, and is realized
The electromagnetic drive of metal dish 132 in the operating mechanism 130, metal dish 132 are acted on to 133 direction of the second coil by electromagnetic repulsion force
It is mobile, and drive breaker movable contact to move, disconnect breaker；After a certain period of time, the corresponding light of the control of controller 110
Signal triggers the photo thyristor conducting of the energy-storage module 105 in the automatic energy storage device, and the energy-storage module 105 is to described
The second coil 133 in operating mechanism 130 discharges, and realizes the electromagnetic buffer of metal dish 132 in the operating mechanism body, open circuit
Device disconnects, and so far, the split-choose-point process of reclosing requirement terminates.
In the present embodiment, controller 110 can obtain the energy accumulating state of each energy-storage module by way of signal wire sampling, and
Each energy-storage module is called to complete breaker actuation according to above-mentioned state.For this reality of the method for each energy-storage module energy accumulating state of acquisition
Example is applied not limit.
With reference to the exemplary description of the foregoing present invention, those skilled in the art can should clearly know that the present invention has
Advantages below：
It is provided by the invention it is a kind of can the electromagnetic repulsion force operating mechanism of reclosing and its one embodiment of control method, lead to
Increase energy-storage module quantity is crossed, provides enough energy storage for electromagnetic repulsion force operating mechanism reclosing, it can be achieved that " split-choose-point " is grasped
Make, and automatic energy storage is realized after the completion of operation, into the hot standby state of next operation.
Claims (10)
- A kind of 1. energy storage device of electromagnetic repulsion force operating mechanism for breaker, it is characterised in that including first energy-storage units, Second energy-storage units, first energy-storage units include at least two energy-storage modules, and second energy-storage units include at least two energy storage moulds Block, the output interface of each energy-storage module of first energy-storage units is in parallel, for connecting breaker operation mechanism first coil；Second The output interface of each energy-storage module of energy-storage units is in parallel, for connecting the second coil of breaker operation mechanism.
- 2. a kind of energy storage device of electromagnetic repulsion force operating mechanism for breaker according to claim 1, its feature exist In the first energy-storage units, second energy-storage units include three energy-storage modules.
- 3. a kind of energy storage device of electromagnetic repulsion force operating mechanism for breaker according to claim 1 or 2, its feature Be, each energy-storage module also includes charging interface, the charging interface of each energy-storage module respectively with for Higher level's circuit of the energy-storage module charging is connected.
- 4. a kind of energy storage device of electromagnetic repulsion force operating mechanism for breaker according to claim 3, its feature exist In the energy-storage module includes energy-storage travelling wave tube, and the switch element for control of discharge is equipped between energy-storage travelling wave tube and output interface.
- 5. a kind of energy storage device of electromagnetic repulsion force operating mechanism for breaker according to claim 4, its feature exist In the energy-storage travelling wave tube is also parallel with the inspection switch for maintenance.
- 6. a kind of energy storage device of electromagnetic repulsion force operating mechanism for breaker according to claim 4, its feature exist In the energy-storage travelling wave tube is capacitance.
- 7. a kind of energy storage device of electromagnetic repulsion force operating mechanism for breaker according to claim 4, its feature exist In the switch element is photo thyristor.
- 8. a kind of divide-shut brake control method based on electromagnetic repulsion force operating mechanism, it is characterised in that based on electromagnetic repulsion force actuating machine The breaker of structure is energized in separating brake, by part energy-storage module for the coil of breaker operation mechanism；In reclosing, by another Part energy-storage module energizes for the coil of breaker operation mechanism.
- A kind of 9. divide-shut brake control method based on electromagnetic repulsion force operating mechanism according to claim 8, it is characterised in that When separating brake again is needed after reclosing, energy-storage module during by different from separating brake and/or during reclosing is breaker operation mechanism Coil energy supply, or by completed charging energy-storage module for breaker operation mechanism coil energize.
- 10. a kind of divide-shut brake control method based on electromagnetic repulsion force operating mechanism according to claim 8 or claim 9, its feature It is, after the completion of each self discharge of energy-storage module, independently charges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711148860.XA CN107993861A (en) | 2017-11-17 | 2017-11-17 | The energy storage device and divide-shut brake control method of a kind of electromagnetic repulsion force operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711148860.XA CN107993861A (en) | 2017-11-17 | 2017-11-17 | The energy storage device and divide-shut brake control method of a kind of electromagnetic repulsion force operating mechanism |
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| CN107993861A true CN107993861A (en) | 2018-05-04 |
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| CN201711148860.XA Pending CN107993861A (en) | 2017-11-17 | 2017-11-17 | The energy storage device and divide-shut brake control method of a kind of electromagnetic repulsion force operating mechanism |
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Cited By (1)
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| CN110994566A (en) * | 2019-12-04 | 2020-04-10 | 南京南瑞继保工程技术有限公司 | Mechanical switch trigger circuit and control method |
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