CN104766733B - A kind of double acting contact type high-speed switch - Google Patents
A kind of double acting contact type high-speed switch Download PDFInfo
- Publication number
- CN104766733B CN104766733B CN201410004930.4A CN201410004930A CN104766733B CN 104766733 B CN104766733 B CN 104766733B CN 201410004930 A CN201410004930 A CN 201410004930A CN 104766733 B CN104766733 B CN 104766733B
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- loop
- symmetrical
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- 230000007246 mechanism Effects 0.000 claims abstract description 43
- 239000002184 metal Substances 0.000 claims abstract description 41
- 229910052751 metal Inorganic materials 0.000 claims abstract description 41
- 230000033001 locomotion Effects 0.000 claims abstract description 13
- 239000003990 capacitor Substances 0.000 claims description 18
- 238000004804 winding Methods 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 7
- 230000003139 buffering effect Effects 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 3
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims description 3
- 229960000909 sulfur hexafluoride Drugs 0.000 claims description 3
- 229910018503 SF6 Inorganic materials 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 claims 1
- 230000008450 motivation Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009194 climbing Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/54—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
Abstract
The present invention relates to a kind of double acting contact type high-speed switch, the switch includes metal enclosed container, the symmetrical drive mechanism being vertically successively set on from inside to outside in the metal enclosed container and the symmetrical buffer gear being connected with the symmetrical drive mechanism；The symmetrical drive mechanism is connected with secondary control loop respectively；The symmetrical drive mechanism is connected with major loop respectively.The major loop includes dock disconnecting switch between being arranged on the symmetrical drive mechanism and mechanical connection；The secondary control loop detects failure or controls the drive mechanism to act after being instructed, and the dividing of major loop, feed motion are completed by the disconnecting switch of the major loop mechanically connected with the drive mechanism.The high-speed switch uses double acting switch contact, reduces the divide-shut brake actuation time of high-speed switch.
Description
Technical field：
The present invention relates to high-speed switch, is more particularly to a kind of double acting contact type high-speed switch.
Background technology：
Recently, the HVDC transmission system based on voltage source converter station (VSC)（HVDC）Progress make structure direct current
Net（DC-grid）It is possibly realized.Relative to AC network, direct current network short circuit current is big and climbing speed is fast, to network harm
It is bigger.Therefore, it is necessary to which reliable high pressure forthright breaker cuts off failure rapidly, to avoid the voltage off-the-line of direct current network, protect
Demonstrate,prove the normal operation of current conversion station.In order to reduce the disturbance to current conversion station, the cable to being not connected to trouble point is especially reduced
With the influence of transmission line of electricity, failure should be cut off in several ms.
Existing mechanical high-voltage dc circuit breaker can in tens of ms disjunction DC current, because its speed is slow can not
Meet the requirement of reliable direct current network.Semiconductor switch for dc circuit breaker easily can be overcome in responsiveness
Limitation, but its transmission loss is larger, accounts for the 30% of the loss of voltage-source type current conversion station, to overcome above-mentioned obstruction, have developed one kind
Mixed type dc circuit breaker for HVDC network.High-speed switch therein is as core component, to HVDC open circuit
Key effect is played in cut-offfing for device.
The content of the invention：
It is an object of the invention to provide a kind of double acting contact type high-speed switch, the high-speed switch uses double acting contact, reduces
Divide-shut brake actuation time of high-speed switch.
To achieve the above object, the present invention uses following technical scheme：A kind of double acting contact type high-speed switch, the switch
Including metal enclosed container, from inside to outside be vertically successively set on symmetrical drive mechanism in the metal enclosed container and with institute
State the symmetrical buffer gear of symmetrical drive mechanism connection；The symmetrical drive mechanism is connected with secondary control loop respectively；It is described
Symmetrical drive mechanism is connected with major loop respectively.
A kind of double acting contact type high-speed switch provided by the invention, the major loop include being arranged on the symmetrical driving machine
Between structure and mechanical connection dock disconnecting switch；The secondary control loop detects failure or controlled after being instructed
The drive mechanism action is made, major loop is completed by the disconnecting switch of the major loop mechanically connected with the drive mechanism
Point, feed motion.
A kind of double acting contact type high-speed switch provided by the invention, the drive mechanism are electromagnetic repulsion mechanism, the electricity
Magnetic repulsion mechanism includes switching winding, closing coil, metal dish and connecting rod；The switching winding and closing coil are separately positioned on
The upper and lower both sides of the metal dish are simultaneously respectively perpendicular and the disconnecting switch；It is respectively connecting at left and right sides of the metal dish few one
Bistable spring；The bistable spring is respectively by being arranged between the switching winding and closing coil and keeping apart perpendicular to described
The connecting rod and the contact of the disconnecting switch for closing radial direction are rigidly connected.
A kind of double acting contact type high-speed switch provided by the invention, the secondary control loop include and the drive mechanism
The discharge loop of connection, the storage capacitor being connected with the discharge loop and electronic monitoring module；The electronic monitoring module bag
Current detection module and control module are included, electric current and control loop are gathered by single-chip microcomputer；Connected in the discharge loop light
Switching device is controlled, to control the storage capacitor to discharge.
Another preferable a kind of double acting contact type high-speed switch provided by the invention, six are filled with the metal enclosed container
Sulfur fluoride gas.
Another preferable a kind of double acting contact type high-speed switch provided by the invention, the divide-shut brake step of the switch are：
1st, during the switch separating brake action, storage capacitor one produces the pulse for continuing 1~2ms to switching winding electric discharge
Electric current；
2nd, within 2~3ms times, the disconnecting switch fracture is formed, and is resistant to specified 40~60kV voltages；
3rd, when separating brake enters buffer stage, storage capacitor two produces the pulse electricity for continuing 1~2ms to the electric discharge of closing coil 8
Stream so that the isolation switch contact motion stops；
4th, during the switch feed motion, the electric discharge of storage capacitor three-dimensional closing coil 8 produces the pulse electricity for continuing 1~2ms
Stream so that the disconnecting switch closure.
Another preferable a kind of double acting contact type high-speed switch provided by the invention, disconnecting switch described in the step 2
Fracture is formed by the metal dish because of inductive loop and by electromagnetic repulsion force F1Action, the metal dish pass through described
Connecting rod is directly rigidly connected with the isolation switch contact, in the electromagnetic repulsion force F in 2~3ms times1In the presence of move 15
~30mm stroke.
Another preferable a kind of double acting contact type high-speed switch provided by the invention, the pulse current in the step 3 are given
The metal dish is with counter-force F2To reduce speed and complete buffering jointly by the buffer gear until switch contact motion stops
Only；The state dish spring device being connected with metal dish provides separating brake confining force.
Another preferable a kind of double acting contact type high-speed switch provided by the invention, the pulse current pair in the step 4
Electromagnetic repulsion force F caused by the metal dish3So that disconnecting switch closes, the state dish spring device being connected with the metal dish provides combined floodgate
Confining force.
Another preferable a kind of double acting contact type high-speed switch provided by the invention, during the high-speed switch normally,
Disconnecting switch closure is connected in the main circuit described in dock.
With immediate prior art ratio, the present invention, which provides technical scheme, has following excellent effect
1st, the present invention reduces the divide-shut brake actuation time of high-speed switch using the design of double acting contact；
2nd, the metal dish in the present invention and switch contact are directly rigidly connected, and reduce moving part quality, accelerate to divide, close a floodgate
Speed；
3rd, the metal dish edge designs state dish spring device in the present invention, reduce the length that connecting rod uses, reduce movable part sub-prime
Amount；
4th, electromagnetic repulsion force collective effect caused by the buffer gear and closing coil in the present invention, completes shorter buffer distance
With the reliable buffering under high movement velocity；
5th, the drive mechanism in the present invention and contact system are in same current potential, are used in series and are easy to expand to voltage levels
Exhibition；
6th, the present invention is designed using dock contact, alleviates spring during combined floodgate.
Brief description of the drawings
Fig. 1 is quick opening and closing mechanism schematic diagram of the present invention；
Fig. 2 is the driving mechanism structure schematic diagram of the present invention；
Wherein, 1- major loops, 2- drive mechanisms, 3- secondary control loops, 4- buffer gears, 5- disconnecting switch, 6- metals
Closed vessel, 7- switching windings, 8- closing coils, 9- connecting rods, 10- electronic monitoring modules, 11- storage capacitors one, 12- discharges back
Road, 13- state dish spring devices, 14- storage capacitors two, 15- storage capacitors three, 16- metal dish.
Embodiment
With reference to embodiment, the invention will be described in further detail.
Embodiment 1：
As shown in Figure 1-2, the double acting contact type high-speed switch of the invention of this example includes metal enclosed container 6, hung down from inside to outside
The symmetrical drive mechanism 2 that is directly successively set in the metal enclosed container 6 and it is connected with the symmetrical drive mechanism 2 symmetrical
Buffer gear 4；The symmetrical drive mechanism 2 is connected with secondary control loop 3 respectively；The symmetrical drive mechanism 2 respectively with master
Loop 1 connects.
The major loop 1 includes dock isolation between being arranged on the symmetrical drive mechanism 2 and mechanical connection
Switch 5；The secondary control loop 3 detects failure or controls the drive mechanism 2 to act after being instructed, by with it is described
Drive mechanism 2 mechanically connect the major loop 1 disconnecting switch 5 complete major loop 1 point, feed motion.
The drive mechanism 2 is electromagnetic repulsion mechanism, the electromagnetic repulsion mechanism include switching winding 7, closing coil 8,
Metal dish 16 and connecting rod 9；The switching winding 7 and closing coil 8 are separately positioned on the metal dish both sides and difference about 16
Vertically with the disconnecting switch 5；The metal dish 9 is respectively arranged on the left side and the right side at least one bistable spring 13；The bistable bullet
Spring 13 is respectively by being arranged between the switching winding 7 and closing coil 8 and perpendicular to the company of the radial direction of disconnecting switch 5
Bar 9 and the contact of the disconnecting switch 5 are rigidly connected.
The secondary control loop 3 includes the discharge loop 12 being connected with the drive mechanism 2 and the discharge loop 12
The storage capacitor and electronic monitoring module 10 of connection；The electronic monitoring module 10 includes current detection module and control module,
Electric current and control loop are gathered by single-chip microcomputer；The series connection light-operated switch device in the discharge loop 12, to control the storage
Can electric capacity electric discharge.
Sulfur hexafluoride gas is filled with the metal enclosed container 6.
The divide-shut brake step of the high-speed switch is：
1st, switch separating brake when, first triggering and conducting connection storage capacitor 1 discharge loop 12, storage capacitor 1 to
The electric discharge of switching winding 7 produces the pulse current for continuing 1~2ms；
2nd, the metal dish 16 is because of inductive loop and by electromagnetic repulsion force F1Action, the metal dish 16 pass through connecting rod
9 are directly rigidly connected with the contact of disconnecting switch 5, move 15~30mm row in 2~3ms times in the presence of electromagnetic repulsion force
Journey so that the fracture of the disconnecting switch 5 is formed, and is resistant to specified 40~60kV voltages；
3rd, the switch separating brake is when entering buffer stage, and storage capacitor 2 14 continues 1 to the electric discharge generation of closing coil 8~
2ms pulse current, to metal dish 16 with counter-force F2To reduce speed, coordinate the buffer gear 4 jointly complete buffering until
Switch contact motion stops.The state dish spring device 13 being connected with metal dish 16（>=2）Separating brake confining force is provided；
4th, during the switch feed motion, storage capacitor 3 15 produces the pulse for continuing 1~2ms to the electric discharge of closing coil 8
Electric current, caused electromagnetic repulsion force F3So that disconnecting switch closes, the state dish spring device 13 being connected with metal dish 16 is provided to close a floodgate and kept
Power.
During the high-speed switch normally, the closure of disconnecting switch 5 is connected in the main circuit 1 described in dock.
Finally it should be noted that:The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, to the greatest extent
The present invention is described in detail with reference to above-described embodiment for pipe, those of ordinary skills in the art should understand that：Still may be used
Modified or equivalent substitution with the embodiment to the present invention, and repaiied without departing from any of spirit and scope of the invention
Change or equivalent substitution, it all should cover among present claims scope.
Claims (1)
- A kind of 1. double acting contact type high-speed switch, it is characterised in that：The switch includes metal enclosed container, vertical from inside to outside The symmetrical drive mechanism being successively set in the metal enclosed container and the symmetrical buffering being connected with the symmetrical drive mechanism Mechanism；The symmetrical drive mechanism is connected with secondary control loop respectively；The symmetrical drive mechanism is connected with major loop respectively；The major loop includes dock disconnecting switch between being arranged on the symmetrical drive mechanism and mechanical connection；Institute State secondary control loop to detect failure or control the symmetrical drive mechanism action after being instructed, by symmetrically driving with described Motivation structure mechanically connect the major loop dock disconnecting switch complete major loop point, feed motion；The symmetrical drive mechanism is electromagnetic repulsion mechanism, and the electromagnetic repulsion mechanism includes switching winding, closing coil, metal Disk and connecting rod；The switching winding and closing coil be separately positioned on the metal dish up and down both sides and be respectively perpendicular with it is described right Connect formula disconnecting switch；A few state dish spring device is respectively connecting at left and right sides of the metal dish；The state dish spring device passes through respectively Be arranged on connecting rod between the switching winding and closing coil and perpendicular to the dock disconnecting switch radial direction with it is described The contact of dock disconnecting switch is rigidly connected；The secondary control loop includes what is be connected with the discharge loop that drive mechanism is connected described symmetrically, with the discharge loop Storage capacitor and electronic monitoring module；The electronic monitoring module includes current detection module and control module, passes through single-chip microcomputer Gather electric current and control loop；The series connection light-operated switch device in the discharge loop, to control the storage capacitor to discharge；The divide-shut brake step of the switch is：(1), during the switch separating brake action, storage capacitor one produces the pulse electricity for continuing 1-2ms to switching winding electric discharge Stream；(2), within the 2-3ms times, the dock disconnecting switch fracture is formed, and is resistant to rated voltage 40-6kV voltages；(3) when, separating brake enters buffer stage, storage capacitor two is to closing coil（8）Electric discharge produces the pulse electricity for continuing 1-2ms Stream so that the dock isolation switch contact motion stops；(4), during the switch feed motion, storage capacitor three-dimensional closing coil (8) electric discharge produces the pulse electricity for continuing 1-2ms Stream so that the dock disconnecting switch closure；Pulse current in the step (3) reduces speed and by the symmetrical buffer to the metal dish with counter-force F2 Structure completes buffering jointly until switch contact motion stops；The state dish spring device being connected with metal dish provides separating brake confining force；Pulse current in the step (4) causes dock to keep apart closing electromagnetic repulsion force F3 caused by the metal dish Close, the state dish spring device being connected with the metal dish provides closing retention force；Sulfur hexafluoride gas is filled with the metal enclosed container；Dock disconnecting switch fracture is formed by the metal dish because of inductive loop and by electricity described in the step (2) Magnetic repulsion F1 actions, the metal dish are directly rigidly connected by the connecting rod and the dock isolation switch contact, 15-30mm stroke is moved in the 2-3ms times in the presence of the electromagnetic repulsion force F1；During the high-speed switch normally, the dock disconnecting switch closure is connected in the major loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410004930.4A CN104766733B (en) | 2014-01-06 | 2014-01-06 | A kind of double acting contact type high-speed switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410004930.4A CN104766733B (en) | 2014-01-06 | 2014-01-06 | A kind of double acting contact type high-speed switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104766733A CN104766733A (en) | 2015-07-08 |
| CN104766733B true CN104766733B (en) | 2017-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410004930.4A Active CN104766733B (en) | 2014-01-06 | 2014-01-06 | A kind of double acting contact type high-speed switch |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107154609A (en) * | 2017-05-02 | 2017-09-12 | 华北电力大学 | A kind of high reliability high-speed switch type fault current limiter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201732723U (en) * | 2010-06-28 | 2011-02-02 | 柳州龙源科技有限公司 | Magnetic force mechanism for vacuum circuit breaker |
| CN102110546A (en) * | 2011-02-24 | 2011-06-29 | 大连理工大学 | Anti-hopping vacuum contactor of high-speed frame-type repulsion mechanism |
| CN202487489U (en) * | 2012-01-12 | 2012-10-10 | 翁映莲 | Indoor high-voltage vacuum circuit breaker operating mechanism with heat radiation device |
| CN103117188A (en) * | 2013-01-17 | 2013-05-22 | 国网智能电网研究院 | High-speed switch for direct current breaker |
| CN103280372A (en) * | 2013-05-16 | 2013-09-04 | 上海合凯电气科技有限公司 | Fast eddy current drive mechanism |
-
2014
- 2014-01-06 CN CN201410004930.4A patent/CN104766733B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201732723U (en) * | 2010-06-28 | 2011-02-02 | 柳州龙源科技有限公司 | Magnetic force mechanism for vacuum circuit breaker |
| CN102110546A (en) * | 2011-02-24 | 2011-06-29 | 大连理工大学 | Anti-hopping vacuum contactor of high-speed frame-type repulsion mechanism |
| CN202487489U (en) * | 2012-01-12 | 2012-10-10 | 翁映莲 | Indoor high-voltage vacuum circuit breaker operating mechanism with heat radiation device |
| CN103117188A (en) * | 2013-01-17 | 2013-05-22 | 国网智能电网研究院 | High-speed switch for direct current breaker |
| CN103280372A (en) * | 2013-05-16 | 2013-09-04 | 上海合凯电气科技有限公司 | Fast eddy current drive mechanism |
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| Publication number | Publication date |
|---|---|
| CN104766733A (en) | 2015-07-08 |
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: GLOBAL ENERGY INTERCONNECTION RESEARCH INSTITUTE Applicant after: China-EPRI Electric Power Engineering Co., Ltd. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: State Grid Smart Grid Institute Applicant before: China-EPRI Electric Power Engineering Co., Ltd. |
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Effective date of registration: 20170630 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: GLOBAL ENERGY INTERCONNECTION RESEARCH INSTITUTE Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: GLOBAL ENERGY INTERCONNECTION RESEARCH INSTITUTE Applicant before: China-EPRI Electric Power Engineering Co., Ltd. |
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