CN108493071A - A kind of high-voltage circuitbreaker with permanent magnet synchronous motor operating mechanism - Google Patents
A kind of high-voltage circuitbreaker with permanent magnet synchronous motor operating mechanism Download PDFInfo
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- CN108493071A CN108493071A CN201810481276.4A CN201810481276A CN108493071A CN 108493071 A CN108493071 A CN 108493071A CN 201810481276 A CN201810481276 A CN 201810481276A CN 108493071 A CN108493071 A CN 108493071A
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- Prior art keywords
- phases
- insulator
- connecting lever
- connecting rod
- runner
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/42—Induction-motor, induced-current, or electrodynamic release mechanisms
- H01H71/43—Electrodynamic release mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H71/70—Power reset mechanisms actuated by electric motor
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a kind of high-voltage circuitbreaker with permanent magnet synchronous motor operating mechanism, high-voltage circuitbreaker includes arc extinguishing unit, transmission system and driving device.Arc extinguishing unit includes three-phase insulator, and three-phase insulator all includes upper insulator, lower insulator, static contact, moving contact, and upper insulator and lower insulator constitute insulation chamber, for cut-offfing and insulating for static contact, moving contact.Driving device includes power module, motor and attachment device, and power module provides power supply for motor, and motor drives attachment device, and drives the runner of transmission system；Transmission system includes runner, output pull rod, multiple connecting rods, insulated tension pole, pass through the rotation driving output pull rod of runner, export multiple connecting rods that pull rod drives transmission system, horizontal displacement, which is carried out, by multiple connecting rods drives multiple insulated tension poles, the mechanical linkage of the vertical direction of the moving contact of A phases insulator, B phases insulator and C phase insulators is driven, realizes separating brake or combined floodgate.
Description
Technical field
The present invention relates to high-voltage circuitbreaker technical fields, matching permanent magnet synchronous motor operating mechanism more particularly, to one kind
High-voltage circuitbreaker.
Background technology
High-voltage circuitbreaker is protection and control device important in electric system, and operating mechanism is the important composition of breaker
One of part, movenent performance directly affects the ability of arc extinguishing unit drop-out current.Traditional operating mechanism is using spring, hydraulic pressure
Or the mechanisms such as pneumatic, it is mainly made of several parts such as connecting rod, lock and energy supply system, parts are more, mechanical knot
Structure is complicated, cumulative movement tolerance is big and cannot achieve the adjusting to actuating process and control.Currently, replacing spring using capacitor
Or compressed air becomes the new developing direction of high-voltage circuitbreaker to store the New-type electric machine operating mechanism of control operating mechanism energy.
The operating mechanism of prior art high-voltage circuitbreaker mostly uses greatly spring, hydraulic pressure or the mechanisms such as pneumatic.The prior art is grasped
The parts of motivation structure are excessive, long for the output torque of driving machine, and setting is complicated.
Therefore, it is necessary to a kind of technologies, to realize the high-voltage circuitbreaker for synchronous triggering.
Invention content
The present invention provides a kind of high-voltage circuitbreakers with permanent magnet synchronous motor operating mechanism, to solve how to synchronize triggering
The problem of high-voltage circuitbreaker.
To solve the above-mentioned problems, the present invention provides a kind of, and the high-voltage circuitbreaker with permanent magnet synchronous motor operating mechanism is high
Voltage breaker, the high-voltage circuitbreaker include arc extinguishing unit, transmission system and driving device, it is characterised in that:
The arc extinguishing unit includes A phases insulator, B phases insulator and C phase insulators, the A phases insulator, the B phases insulator with
And the C phases insulator all includes upper insulator, lower insulator, static contact, moving contact, the upper insulator and the lower insulator constitute insulation
Chamber, for cut-offfing and insulating for the static contact, the moving contact；
The driving device includes power module, motor and attachment device, the power module provides electricity for the motor
Source, the motor drives the attachment device, and drives the runner of the transmission system；
The transmission system includes runner, output pull rod, multiple connecting rods, insulated tension pole, is driven by the rotation of the runner
The output pull rod is moved, the output pull rod drives the multiple connecting rod of the transmission system, realizes the multiple connecting rod
Horizontal displacement carries out horizontal displacement by the multiple connecting rod and drives the multiple insulated tension pole, drives the A phases insulator, B phases
The mechanical linkage of the vertical direction of the moving contact of insulator and C phase insulators realizes separating brake or combined floodgate.
Preferably, the driving unit is with the moving contact displacement relation by the angle for driving runner to rotate：
X indicates that the moving contact displacement, H indicate that moving contact stroke, δ export for motor
Axis rotational angle.
Preferably, the transmission system includes connecting lever outside A phases, the outer connecting lever of connecting lever, C phases, A phases transmission shaft, B are passed on from one to another outside B phases
Moving axis, C phases transmission shaft, connecting lever in A phases, connecting lever in B phases, connecting lever, the first interphase connecting rod, the second interphase connecting rod, third phase in C phases
Between connecting rod, the 4th interphase connecting rod and runner.
Preferably, the outer connecting lever of the A phases and the first interphase connecting rod first end, the second interphase connecting rod first end phase
Connection；
The outer connecting lever of the B phases is alternate with the first interphase connecting rod second end, the second interphase connecting rod second end, third
Connecting rod first end, the 4th interphase connecting rod first end are connected；
The outer connecting lever of the C phases is connected with the third interphase connecting rod second end, the 4th interphase connecting rod second end.
Preferably, the outer connecting lever of the A phases, connecting lever first end is connected with the A phases transmission shaft in the A phases；
Connecting lever first end, the output pull rod are connected with the B phases transmission shaft in the outer connecting lever of the B phases, the B phases；
Connecting lever first end is connected with the C phases transmission shaft in the outer connecting lever of the C phases, the C phases.
Preferably, connecting lever second end is connected with A phase insulated tension poles in the A phases；
Connecting lever second end is connected with B phase insulated tension poles in the B phases；
Connecting lever second end is connected with C phase insulated tension poles in the C phases；
Preferably, the driving device is set to the underface medium position of the transmission system.
Preferably, rotational angle is no more than 100 ° in the runner driving making process, and the runner drives separating brake mistake
Rotational angle is no more than 90 ° in journey
Preferably, the motor is permanent magnet synchronous motor.
The good modulating properties of servo drive motor are combined with advanced control algolithm by digital control unit, it is real
Now the high-efficiency dynamic of breaker motion process is controlled.High-voltage circuitbreaker provided by the present application, in conjunction with sulfur hexafluoride breaker
Mechanical property index, it is proposed that a kind of operating mechanism directly driving breaker using three-phase permanent magnet synchronous motor controls dynamic touch
Head not only may be implemented the matching that circuit breaker load counter-force is contributed with mechanism, also can be improved according to ideal divide-shut brake curvilinear motion
The switching on and off ability of breaker.
Description of the drawings
By reference to the following drawings, exemplary embodiments of the present invention can be more fully understood by：
Fig. 1 is a kind of high-voltage circuitbreaker structure with permanent magnet synchronous motor operating mechanism according to embodiment of the present invention
Figure；
Fig. 2 is a kind of high voltage circuit breaker closing shape with permanent magnet synchronous motor operating mechanism according to embodiment of the present invention
The transmission schematic diagram of state and gate-dividing state；
Fig. 3 is to simulate knot according to a kind of high-voltage circuitbreaker with permanent magnet synchronous motor operating mechanism of embodiment of the present invention
Structure schematic diagram；
Fig. 4 is the driving motor structural schematic diagram according to embodiment of the present invention.
Specific implementation mode
Exemplary embodiments of the present invention are introduced referring now to the drawings, however, the present invention can use many different shapes
Formula is implemented, and is not limited to the embodiment described herein, and to provide these embodiments be to disclose at large and fully
The present invention, and fully convey the scope of the present invention to person of ordinary skill in the field.Show for what is be illustrated in the accompanying drawings
Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements use identical attached
Icon is remembered.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has person of ordinary skill in the field
It is common to understand meaning.Further it will be understood that with the term that usually used dictionary limits, should be understood as and its
The context of related field has consistent meaning, and is not construed as Utopian or too formal meaning.
Fig. 1 is a kind of high-voltage circuitbreaker structure with permanent magnet synchronous motor operating mechanism according to embodiment of the present invention
Figure.High-voltage circuitbreaker motor trigger mechanism structure arc extinguishing unit, driving device and transmission system as shown in Figure 1, be mainly made of.
The application converts the spinning movement of motor to by transmission mechanism using connection scheme the linearly operating of moving contact, and then drives
Breaker is completed to divide/closing operation.As shown in Figure 1, a kind of high-voltage circuitbreaker 100 with permanent magnet synchronous motor operating mechanism, packet
Include arc extinguishing unit, transmission system and driving device, it is characterised in that:
Arc extinguishing unit includes A phase insulator A phases insulator, B phases insulator and C phase insulators, A phases insulator, B phases insulator and C phases
Insulator all includes upper insulator, lower insulator, static contact 1, moving contact 2, and upper insulator and lower insulator constitute insulation chamber, for being stationary contact
First 1, moving contact 2 cut-offs and insulate.
Arc extinguishing unit includes three phase isolated insulator composition in the application, and three phase isolated insulator is all divided into insulator and lower porcelain
Set, lower insulator are connected with the interior connecting lever of transmission system, are turned in the horizontal displacement drive by the horizontal interphase connecting rod of transmission system
Arm, and then realize three phase mechanical linkage, the use of this connection scheme can reduce the requirement to transmission main shaft torque, carry simultaneously
The synchronism of high threephase switch triggering.
Driving device includes power module, motor and attachment device, and power module provides power supply for motor, and motor, which drives, to be connected
Connection device, and the runner 7 of transmission system is driven, by the driving output pull rod 8 of runner 7 of rotation, output pull rod 8 drives power train
Multiple connecting rods 61,62,63,64 of system, realize the horizontal displacement of multiple connecting rods 61,62,63,64.
Transmission system includes runner, output pull rod, insulated tension pole, multiple connecting rods 61,62,63,64, passes through the rotation of runner
Driving output pull rod, output pull rod drive multiple connecting rods of transmission system, realize the horizontal displacement of multiple connecting rods, pass through multiple companies
Bar 61,62,63,64 carries out horizontal displacement and drives multiple insulated tension poles, such as (the insulation of B phase insulators of insulated tension pole 3 of A phase insulators
The insulated tension pole of pull rod and C phase insulators is position corresponding with the insulated tension pole 3 of A phase insulators, is not shown in Fig. 1), drive A phases
The moving contact of insulator, B phases insulator and C phase insulators, such as A phase insulators moving contact 2 (moving contact of B phase insulators and moving for C phase insulators
Contact is position corresponding with the moving contact 2 of A phase insulators, is not shown in Fig. 1) vertical direction mechanical linkage, realize point
Lock or combined floodgate.
Transmission system is a set of crank block slider structure, includes mainly multiple connecting rods, transmission case, multiple interior connecting levers, multiple outer
Connecting lever, output pull rod, runner etc..Transmission mechanism passes through the horizontal interphase connecting rod of transmission case and the insulated tension pole phase of breaker body
Even, transmission system is connected by runner 7 with driving device rotor.
Preferably, driving unit is with 2 displacement relation of moving contact by the angle for driving runner 7 to rotate：
X indicates that 2 displacement of moving contact, H indicate that moving contact stroke, δ turn for motor output shaft
Dynamic angle.
Preferably, transmission system includes connecting lever 4 outside A phases, the outer connecting lever of connecting lever, C phases, A phases transmission shaft 10, B phases are driven outside B phases
Axis, C phases transmission shaft, connecting lever in A phases, connecting lever in B phases, connecting lever 9, the first interphase connecting rod 61, the second interphase connecting rod 62, in C phases
Three interphase connecting rods 63, the 4th interphase connecting rod 64 and runner 7.
Preferably, connecting lever 4 is connected with the first interphase connecting rod first end, the second interphase connecting rod first end outside A phases；
The outer connecting lever of B phases and the first interphase connecting rod second end, the second interphase connecting rod second end, third interphase connecting rod first end,
4th interphase connecting rod first end is connected；
The outer connecting lever of C phases is connected with third interphase connecting rod second end, the 4th interphase connecting rod second end.
Preferably, the outer connecting lever of A phases, connecting lever first end is connected with A phase transmission shafts in A phases；
Connecting lever first end, output pull rod are connected with B phase transmission shafts in the outer connecting lever of B phases, B phases；
Connecting lever first end is connected with C phase transmission shafts in the outer connecting lever of C phases, C phases.
Preferably, connecting lever second end is connected with A phase insulated tension poles in A phases；
Connecting lever second end is connected with B phase insulated tension poles in B phases；
Connecting lever second end is connected with C phase insulated tension poles in C phases；
Preferably, driving device is set to the underface medium position of transmission system.
Preferably, rotational angle is no more than 100 ° in runner driving making process, and runner rotates during driving separating brake
Angle is no more than 90 °
Preferably, driving motor is permanent magnet synchronous motor.
Fig. 2 is the transmission schematic diagram of high voltage circuit breaker closing state and gate-dividing state.As shown in Fig. 2, x indicates dynamic tactile in figure
Head displacement.When breaker carries out closing operation, since open position, runner rotates counterclockwise under the driving of motor, leads to
It crosses output pull rod and interior connecting lever drives insulated tension pole vertically moving, the moving contact of lower insulator is driven to move to closing position
It sets.When closing position, inhibits rebound of closing a floodgate jointly using motor driving force and transmission mechanism dead point (E'), breaker is made finally to protect
It holds in "on" position.For the sub-switching operation of breaker, the motion process of operating mechanism is opposite with closing operation.In making process
In inter-agency angle such as Fig. 2 shown in making process, by geometrical analysis, it is approximate with contact displacement that motor corner can be obtained
Relationship is as shown in Equation 2, and OE is runner radius；ED is expressed as output pull rod, and CB indicates interior connecting lever, and AB is insulated tension pole
X indicates that 2 displacement of moving contact, H indicate that moving contact stroke, δ are motor output shaft rotational angle.
It is verified for the technique effect to the application embodiment, to the open airs a LW30-126 self extinguishing type SF6 open circuit
Device spring operating mechanism is simplified, and design electric operating mechanism analog machine is as shown in Figure 3.Moving contact stroke is in action process
H=150mm, corner when closing position are set as 100 °, and corner when open position is set as -90 °, entire action process electricity
Machine corner is 190 °.Therefore, the requirement to output torque can be reduced by crank block slider structure, meanwhile, the profit of maximum magnitude
The requirement to motor torque can be reduced with motor corner.
In the application, the driving motor of driving device is located at medium position below transmission system, and output revolving shaft passes through biography
Motivation structure is connected with moving contact.The type selecting of motor will be in conjunction with the load characteristic during breaker actuation, to ensure going out for motor
The spring load characteristic of force characteristic and breaker is good fit.The driving motor model that the present embodiment uses：Phase-1340A's
4 pairs of pole permanent-magnet synchronous machines, appearance and size are as shown in Figure 4.
In the application, motor greatly reduces the zero of traditional operating mechanism as unique driving part in operating mechanism
Component improves the reliability of operating mechanism.Meanwhile the connection scheme of three-phase connecting rod horizontal conveyor, it reduces and rotary part is exported
The requirement of torque, threephase switch synchronism are good.In addition, reducing the requirement to motor torque.
From principle, the movement of trigger mechanism moving contact is only related with motor corner, and control motor corner displacement is equivalent to
Moving contact stroke curve is controlled, realizes that circuit-breaker switching on-off action is controllable.
A kind of trigger mechanism directly driving breaker using three-phase permanent magnet synchronous motor that the application proposes controls contact
According to ideal divide-shut brake curvilinear motion, the matching that circuit breaker load counter-force is contributed with mechanism not only may be implemented, also can be improved disconnected
The switching on and off ability of road device.
The present invention is described by reference to a small amount of embodiment.However, it is known in those skilled in the art, as
Defined by subsidiary Patent right requirement, in addition to the present invention other embodiments disclosed above are equally fallen the present invention's
In range.
Normally, all terms used in the claims are all solved according to them in the common meaning of technical field
It releases, unless in addition clearly being defined wherein.All references " one/described/be somebody's turn to do [device, component etc.] " are all opened ground
It is construed at least one of described device, component etc. example, unless otherwise expressly specified.Any method disclosed herein
Step need not all be run with disclosed accurate sequence, unless explicitly stated otherwise.
Claims (9)
1. a kind of high-voltage circuitbreaker with permanent magnet synchronous motor operating mechanism, the high-voltage circuitbreaker includes arc extinguishing unit, transmission
System and driving device, it is characterised in that:
The arc extinguishing unit includes A phases insulator, B phases insulator and C phase insulators, the A phases insulator, the B phases insulator and institute
It includes upper insulator, lower insulator, static contact, moving contact to state C phases insulator all, and the upper insulator and the lower insulator constitute insulated cavity
Room, for cut-offfing and insulating for the static contact, the moving contact；
The driving device includes power module, motor and attachment device, the power module provides power supply for the motor,
The motor drives the attachment device, and drives the runner of the transmission system；
The transmission system includes runner, output pull rod, multiple connecting rods, insulated tension pole, and institute is driven by the rotation of the runner
Output pull rod is stated, the output pull rod drives the multiple connecting rod of the transmission system, realizes the level of the multiple connecting rod
Displacement carries out horizontal displacement by the multiple connecting rod and drives the multiple insulated tension pole, drives the A phases insulator, B phase insulators
And the mechanical linkage of the vertical direction of the moving contact of C phase insulators, realize separating brake or combined floodgate.
2. high-voltage circuitbreaker according to claim 1, the driving unit is and described by the angle that drives runner to rotate
Moving contact displacement relation is：
X indicates that the moving contact displacement, H indicate that moving contact stroke, δ rotate for motor output shaft
Angle.
3. high-voltage circuitbreaker according to claim 1, the transmission system includes the outer connecting lever of A phases, the outer connecting lever of B phases, outside C phases
Connecting lever, A phases transmission shaft, B phases transmission shaft, C phases transmission shaft, connecting lever in A phases, connecting lever in B phases, connecting lever, the first alternate company in C phases
Bar, the second interphase connecting rod, third interphase connecting rod, the 4th interphase connecting rod and runner.
4. high-voltage circuitbreaker according to claim 3, the outer connecting lever of the A phases and the first interphase connecting rod first end, institute
The second interphase connecting rod first end is stated to be connected；
The outer connecting lever of the B phases and the first interphase connecting rod second end, the second interphase connecting rod second end, third interphase connecting rod
First end, the 4th interphase connecting rod first end are connected；
The outer connecting lever of the C phases is connected with the third interphase connecting rod second end, the 4th interphase connecting rod second end.
5. high-voltage circuitbreaker according to claim 3, connecting lever first end and the A in the outer connecting lever of the A phases, the A phases
Phase transmission shaft is connected；
Connecting lever first end, the output pull rod are connected with the B phases transmission shaft in the outer connecting lever of the B phases, the B phases；
Connecting lever first end is connected with the C phases transmission shaft in the outer connecting lever of the C phases, the C phases.
6. high-voltage circuitbreaker according to claim 3, connecting lever second end is connected with A phase insulated tension poles in the A phases；
Connecting lever second end is connected with B phase insulated tension poles in the B phases；
Connecting lever second end is connected with C phase insulated tension poles in the C phases.
7. high-voltage circuitbreaker according to claim 1, the driving device is set in the underface of the transmission system
Portion position.
8. high-voltage circuitbreaker according to claim 1, in the runner driving making process rotational angle be no more than
100 °, rotational angle is no more than 90 ° during the runner drives separating brake
9. high-voltage circuitbreaker according to claim 1, the motor is permanent magnet synchronous motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810481276.4A CN108493071A (en) | 2018-05-18 | 2018-05-18 | A kind of high-voltage circuitbreaker with permanent magnet synchronous motor operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810481276.4A CN108493071A (en) | 2018-05-18 | 2018-05-18 | A kind of high-voltage circuitbreaker with permanent magnet synchronous motor operating mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN108493071A true CN108493071A (en) | 2018-09-04 |
Family
ID=63352943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810481276.4A Pending CN108493071A (en) | 2018-05-18 | 2018-05-18 | A kind of high-voltage circuitbreaker with permanent magnet synchronous motor operating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108493071A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337829A (en) * | 2020-04-03 | 2020-06-26 | 清华大学 | Motor detection method and device |
| CN114512365A (en) * | 2020-11-16 | 2022-05-17 | 河南平芝高压开关有限公司 | Three-phase common-box type quick grounding switch |
-
2018
- 2018-05-18 CN CN201810481276.4A patent/CN108493071A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337829A (en) * | 2020-04-03 | 2020-06-26 | 清华大学 | Motor detection method and device |
| CN111337829B (en) * | 2020-04-03 | 2021-04-20 | 清华大学 | Motor detection method and device |
| CN114512365A (en) * | 2020-11-16 | 2022-05-17 | 河南平芝高压开关有限公司 | Three-phase common-box type quick grounding switch |
| CN114512365B (en) * | 2020-11-16 | 2024-04-05 | 河南平芝高压开关有限公司 | Three-phase common box type quick grounding switch |
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