CN109545617A - Vertical magnetic vacuum arc-chutes arc region remanent magnetism autocompensation installation - Google Patents
Vertical magnetic vacuum arc-chutes arc region remanent magnetism autocompensation installation Download PDFInfo
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- CN109545617A CN109545617A CN201811548088.5A CN201811548088A CN109545617A CN 109545617 A CN109545617 A CN 109545617A CN 201811548088 A CN201811548088 A CN 201811548088A CN 109545617 A CN109545617 A CN 109545617A
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- chutes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Geophysics And Detection Of Objects (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of vertical magnetic vacuum arc-chutes arc region remanent magnetism autocompensation installations, including automatic detection module, intelligent total control module, bidirectional switch module, coil drive module, battery charging module, Helmholtz coil and battery.The present invention by automatic measurement technique realize current zero, open away from real-time monitoring, merge zero area's remanent magnetism distribution situation of vacuum interrupter, the accurate compensation for realizing zero area's remanent magnetism is controlled using reverse impulse magnetic field, obtaining 0th area of Vacuum Circuit Breaker, nearby remanent magnetism is zero, and then the constraint residual plasma body diffusion of zero area's remanent magnetism is reduced, improve Vacuum Circuit Breaker ability.
Description
Technical field
The invention belongs to vacuum switch fields, and in particular to a kind of vertical magnetic vacuum arc-chutes arc region remanent magnetism compensates dress automatically
It sets.
Background technique
With the development of Vacuum Relay Technique, solid insulation switch cabinet, gas insulation switch cabinet and air insulation switchgear
Equal vacuum switches complete set of equipments is used widely in distribution.Vacuum interrupter is the core component of vacuum switch, big at present
Partial vacuum arc-chutes structure of contact terminal is using longitudinal magnetic field (AMF) contact, including cup-shaped, coil type etc..Electric current is touched by AMF
Longitudinal magnetic field is generated when head, for regulating and controlling vacuum arc, avoids gathering electric arc, anode spot and partial melting, this is for improving
The connecting-disconnecting function and electrical endurance of vacuum switch have great significance, have been widely used.
But due to the influence of vortex, AMF contact magnetic field is out of phase with AMF contact electric current is flowed through, and there are phase differences, i.e.,
Peak magnetic field is inconsistent with current peak, and there are remnant fields in current zero period, in electric current 10KA, remanent magnetism range be 10~
50mT.Zero area's remanent magnetism has fettered the diffusion of vacuum arc plasma, thereby reduces zero area's dynamic dielectric recovery intensity, unfavorable
In cut-offfing for vacuum switch.Existing 0th area remanent magnetism compensation device mostly uses permanent magnet, optimization structure of contact terminal to carry out Active Compensation, or
It is compensated by reducing vortes interference.Conventional method can reduce by zero area's remanent magnetism to a certain extent at present, but can not be complete
Zero area's remanent magnetism is counteracted or compensated for, compensation effect is poor, and method is monitored and controlled in lack of wisdomization.
Summary of the invention
It can not be completely counterbalanced by or compensate in the prior art zero area's remanent magnetism for above-mentioned, compensation effect is poor, lack of wisdomization prison
The technical issues of surveying and controlling, the object of the present invention is to provide a kind of vertical magnetic vacuum arc-chutes arc region remanent magnetism to compensate dress automatically
It sets.
The purpose of the present invention is what is be achieved through the following technical solutions.
A kind of vertical magnetic vacuum arc-chutes arc region remanent magnetism autocompensation installation, including vertical magnetic vacuum arc-chutes, the remanent magnetism
Autocompensation installation includes Helmholtz coil, two-way choice switch module, coil drive module, battery charging module, electric power storage
Pond, intelligent total control module and automatic detection module.
Static contact, moving contact, permanent magnet mechanism and drive rod are provided in the vertical magnetic vacuum arc-chutes, drive rod setting exists
On permanent magnet mechanism, drive rod is connect by insulating bar with moving contact, and Helmholtz coil, the last of the twelve Earthly Branches are provided on static contact and moving contact
The leading-out terminal of Mu Huozi coil is connect with the input terminal of two-way choice switch module, the end of incoming cables of Helmholtz coil and battery
Pole connection, the output end of two-way choice switch module connect with coil drive module and battery charging module respectively, coil
Drive module and battery charging module are connect with another pole of battery respectively；Automatic detection is provided on vertical magnetic vacuum arc-chutes
Module, automatic detection module are connect with intelligent total control module, intelligent total control module respectively with coil drive module and two-way
Select switch module connection.
Preferably, the automatic detection module includes current transformer, displacement sensor and data acquisition unit, and electric current is mutual
Sensor is arranged in arc-chutes outlet, and displacement sensor is arranged on drive rod, current transformer and displacement sensor respectively with
Data acquisition unit connection, data acquisition unit are connect with intelligent total control module.
Preferably, the distribution of zero area's remanent magnetism of contact difference Kai Ju, intelligent master control are provided in the intelligent total control module
The communication interface that relay protection devices cut-off signal is provided in module.
Preferably, the two-way choice switch module is by relay I, relay II and its driving circuit I, driving circuit II
Composition, relay I are connect with battery charging module, and relay II is connect with coil drive module；Driving circuit I and driving circuit
II connect with intelligent total control module respectively.
Preferably, the coil drive module is adopted by coil drive control unit, insulated gate bipolar transistor and electric current
Collect unit composition, current acquisition unit connect with coil drive control unit, insulated gate bipolar transistor respectively with two-way choosing
It selects switch module to connect with battery, insulated gate bipolar transistor is controlled by coil drive control unit.
Preferably, the coil drive control unit is by signal receiving circuit, PMW generator, insulated gate bipolar crystal
Tube drive circuit and insulated gate bipolar transistor composition, intelligent total control module are connect with signal receiving circuit, and signal receives
Circuit is connect with PMW, and PMW generator is connect with bipolar transistor driving circuit of insulated gate, and insulated gate bipolar transistor drives
Dynamic circuit is connect with insulated gate bipolar transistor.
Preferably, the battery charging module include transformer, AC-DC rectification module, electric current I- voltage U conversion circuit and
Filter unit forms, and connect, connect after transformer with AC-DC rectification module, AC-DC with two-way choice switch module before transformer
Rectification module is connect with electric current I- voltage U conversion circuit, and electric current I- voltage U conversion circuit is connect with filter unit, filter unit
It is connect with battery.
Preferably, the battery is high-voltage capacitance array or high pressure lithium battery array battery.
Preferably, the Helmholtz coil is fixed on static contact and moving contact using high-voltage isulation refractory material.
A kind of operation method of vertical magnetic vacuum arc-chutes arc region remanent magnetism autocompensation installation, comprising the following steps:
S101: what whether intelligent total control module received relay protection devices cut-offs signal, if so, thening follow the steps S102；If it is not,
Then execute S109；
S102: end of incoming cables 26 and conducting wire 16 is connected in intelligent total control module control two-way choice switch；
S103: automatic detection module detection principal current 27 and vacuum switch are opened away from d；
S104: intelligent total control module reads principal current 27, opens away from d and built-in zero area's remanent magnetism, 31 data of distribution；
S105: intelligent total control module obtains the magnetic field strength B31(virtual value that should be compensated away from d and distributed data 31 according to opening),
27 zero passage point moment t29 of principal current is predicted according to principal current data simultaneously；
S106: intelligent total control module issues control signal to coil drive module according to calculating and prediction result；
S107: coil drive module generates square wave current；
S108: electric current generates compensation magnetic field Bb28 in coil；
S109: end of incoming cables 26 and conducting wire 15 is connected in intelligent total control module control two-way choice switch；
S110: battery charging module work, battery charging.
Compared with prior art, the invention has the benefit that 1, achievable self-supplying power source power supply, multiplexing Helmholtz's line
Circle, the present invention are switched by intelligent control and two-way choice, in breaker closing from Helmholtz coil to included battery
Charging, takes electricity from battery in breaker open operation, is integrated on arc-chutes conducive to by device.
2, automatic detection, automatic compensation, the automatic detection switch of automatic detection module of the invention open away from principal current data,
After intelligent total control module calculates data, receive relay protection devices cut-off signal after, it is suitable from the compensation of trend arc-chutes
Magnetic field reduces the constraint residual plasma body diffusion of zero area's remanent magnetism, improves Vacuum Circuit Breaker ability.
3, high-precision control magnetic field occurs, and the present invention, can be in 10 microseconds from trend using high speeds precision elements such as IGBT
Arc-chutes compensate Size Error and apply magnetic field of the moment error within 1%.
Detailed description of the invention
Fig. 1 is flow chart of the invention.
Fig. 2 is waveform diagram of the invention.
Fig. 3 is overall structure diagram of the invention.
Fig. 4 is the structural schematic diagram of two-way choice switch module of the invention.
Fig. 5 is the control schematic diagram of coil drive control unit of the invention.
Fig. 6 is the structural schematic diagram of battery charging module of the invention.
Specific embodiment
In conjunction with following accompanying drawings and embodiment, technical solution of the present invention is described in further detail.
As figures 2-6, a kind of vertical magnetic vacuum arc-chutes arc region remanent magnetism autocompensation installation, including vertical magnetic vacuum go out
Arc chamber 1, remanent magnetism autocompensation installation include that Helmholtz coil 2, two-way choice switch module, coil drive module, battery fill
Electric module, battery, intelligent total control module and automatic detection module.
Static contact, moving contact, permanent magnet mechanism 7 and drive rod are provided in vertical magnetic vacuum arc-chutes, drive rod is arranged forever
On magnetic mechanism 7, drive rod is connect by insulating bar 5 with moving contact, and Helmholtz coil 2 is provided on static contact and moving contact,
The leading-out terminal 26 of Helmholtz coil 2 is connect with the input terminal of two-way choice switch module, the end of incoming cables 25 of Helmholtz coil 2
It is connected with a pole of battery, the output end of two-way choice switch module connects with coil drive module and battery charging module respectively
It connects, coil drive module and battery charging module are connect with another pole of battery respectively；It is provided on vertical magnetic vacuum arc-chutes
Automatic detection module, automatic detection module are connect with intelligent total control module, intelligent total control module respectively with coil drive mould
Block is connected with two-way choice switch module.
Automatic detection module includes current transformer 4, displacement sensor 6 and data acquisition unit, and current transformer 4 is arranged
In arc-chutes outlet 3, displacement sensor 6 is arranged on drive rod, current transformer 4 and displacement sensor 6 respectively with data
Acquisition unit connection, data acquisition unit are connect with intelligent total control module.
The distribution of zero area's remanent magnetism of contact difference Kai Ju is provided in intelligent total control module.
The communication interface that relay protection devices cut-off signal 24 is provided on intelligent total control module.
Two-way choice switch module is by II 12 groups of relay I 10, relay II 11 and its driving circuit I 9, driving circuit
At relay I 10 is connect with battery charging module, and relay II 11 is connect with coil drive module；Driving circuit I 9 and driving
Circuit II 12 is connect with intelligent total control module respectively.
Coil drive module is by coil drive control unit, insulated gate bipolar transistor (IGBT) and current acquisition unit
8 compositions, current acquisition unit 8 are connect with coil drive control unit, and insulated gate bipolar transistor (IGBT) is respectively by leading
Line 16 and conducting wire 23 are connect with two-way choice switch module and battery, and insulated gate bipolar transistor (IGBT) is by coil drive
Control unit control.
Coil drive control unit is driven by signal receiving circuit, PMW generator, insulated gate bipolar transistor (IGBT)
Circuit and insulated gate bipolar transistor (IGBT) composition, intelligent total control module are connect with signal receiving circuit, and signal receives
Circuit is connect with PMW, and PMW generator is connect with insulated gate bipolar transistor (IGBT) driving circuit, and insulated gate bipolar is brilliant
Body pipe (IGBT) driving circuit is connect with insulated gate bipolar transistor (IGBT).
Battery charging module includes transformer, AC-DC rectification module, electric current I- voltage U conversion circuit and filtering unit group
At, connect before transformer with two-way choice switch module, connect after transformer with AC-DC rectification module, AC-DC rectification module with
The connection of electric current I- voltage U conversion circuit, electric current I- voltage U conversion circuit are connect with filter unit, and filter unit and battery connect
It connects.
Battery is high-voltage capacitance array or high pressure lithium battery array battery.
Helmholtz coil 2 is fixed on static contact and moving contact using high-voltage isulation refractory material, and is avoided and arc extinguishing
Room 1 contacts.
Embodiment is as shown in figs. 1 to 6.
As shown in figure 3, vertical zero area's remanent magnetism autocompensation installation of magnetic vacuum arc-chutes electric arc includes automatic detection module, intelligence
Total control module, two-way choice switch module, coil drive module, battery charging module, Helmholtz coil and battery.
As shown in Figure 1, the operation of vertical zero area's remanent magnetism autocompensation installation of magnetic vacuum arc-chutes electric arc includes the following steps.
S101: what whether intelligent total control module received relay protection devices cut-offs signal, if so, thening follow the steps S102；If
It is not then to execute S109.
S102: end of incoming cables 26 and conducting wire 16 is connected in intelligent total control module control two-way choice switch.
S103: automatic detection module detection principal current 27 and vacuum switch are opened away from d.
S104: intelligent total control module reads principal current 27, opens away from d and built-in zero area's remanent magnetism, 31 data of distribution.
S105: intelligent total control module is effective according to the magnetic field strength B31(for obtaining to compensate away from d and distributed data 31 is opened
Value), while 27 zero passage point moment t29 of principal current is predicted according to principal current data.
S106: intelligent total control module issues control signal to coil drive module according to calculating and prediction result.
S107: coil drive module generates square wave current.
S108: electric current generates compensation magnetic field Bb28 in coil.
S109: end of incoming cables 26 and conducting wire 15 is connected in intelligent total control module control two-way choice switch.
S110: battery charging module work, battery charging.
As shown in figure 3, automatic detection module includes a current transformer 4 and a displacement sensor 6, current transformer
4 ranges are 0 to 20KA, sampling precision 50mA, and by current transformer 4, data acquisition unit can acquire arc-chutes in real time
Principal current 27 in outlet 3 records the waveform in 1/4 or more period of principal current；6 range of displacement sensor is 0 to 5cm, sampling is smart
Degree is 0.1mm, by displacement sensor 6, the stroke of permanent magnet mechanism 7, i.e. arc extinguishing when data acquisition unit records break contact
Opening away from d between 1 contact of room；Data acquisition unit sample frequency 20MHz, precision 0.1%, built-in communication chip MAX487 is to intelligence
Energy total control module sends acquisition data by communication line 18；The time of intelligent total control module is passed to 2 from signal is collected
In microsecond.
625MHz dominant frequency processor built in intelligent total control module and communication chip MAX487；If intelligent total control module root
Signal 24 is cut-off according to the relay protection devices received from communication port, then issues control signal 13 and 14 to bidirectional switch module, makes to lead
Line 15 and conducting wire 22 disconnect, while connect conducting wire 16 with conducting wire 23；Make the wave according to 1/4 period of principal current received
Shape obtains period and the peak value moment of principal current 27, and then the zero-acrross ing moment t29 of predicted current, and issues corresponding control signal
21, therefore can achieve error less than 10 microsecond Accurate Predictions；Intelligent total control module has built-in vacuum switch different in advance
It opens away from zero area's remanent magnetism of d Xia distribution 31, zero area's remanent magnetism distribution 31 can be obtained by physics simulation softwares such as Ansoft；Receive out away from
After d information, intelligent total control module issues corresponding control signal 21 according to zero area's Distribution of Magnetic Field 31；Signal is cut-off from relay protection is received
24 are transmitted to the time of two-way choice switch module in 1 microsecond to control signal 13 and control signal 14；From receive electric current and
It opens and is transmitted to the time of coil drive module in 5 microseconds to control signal 21 away from d signal.
Two-way choice switchs the switch by two relays as two circuits, and conducting wire 15 is connected to battery charging module,
I 10 pilot 15 of relay is opened and closed with leading-out terminal 26；Conducting wire 16 is connected to the IGBT of coil drive module, and relay 11 controls
Conducting wire 16 and leading-out terminal 26 open and close；Relay I 10 is driven by driving circuit I 9, and driving circuit I 9 is total by connection 19 and intelligence
Control module is connected, and the control signal 13 issued by intelligent total control module controls；Relay II 11 is driven by driving circuit II 12
Dynamic, driving circuit II 12 is connected by connection 19 with intelligent total control module, and the control issued by intelligent total control module is believed
Numbers 14 controls；When intelligent total control module issues the charging of semaphore request battery charging module, relay I 10 is closed, relay
II 11 cut-off；When intelligent total control module issues the work of semaphore request coil drive module, relay II 11 is closed, relay I
10 cut-off.
Two-way choice switchs built-in communication chip MAX487, and high-speed high-power driving circuit and high speed electromagnetic relay can be real
It closes a floodgate or cut-offs in 5 milliseconds existing.
Intelligent total control module receives the signal from automatic detection module by communication line 18, by communication line 19, leads to
Believe that line 20 issues signal to two-way choice switch module and coil drive module respectively.
As shown in figure 5, signal receiving unit is connect by connection 20 with intelligent total control module, intelligent master control is received
The control signal 21 of module, the signal of signal receiving unit are transmitted to PMW generator, and PMW generator, which issues signal, drives IGBT
Dynamic circuit works, and controls IGBT high speed on or off.
Coil drive control unit in coil drive module uses high speed element, makes the exportable rising edge of IGBT or decline
Along the pulse square wave less than 1 millisecond, 0.1 millisecond to 2 milliseconds of pulsewidth.
Coil drive module is decoded after receiving control signal 21, and control signal 21 includes two parts content: first is that applying
Add time information, i.e., so that PMW generator is started to work at the t29 moment, insulated gate bipolar transistor is controlled by PMW signal
(IGBT) driving circuit is begun to turn on；Second is that the corresponding PMW duty cycle information of compensation magnetic field strength (virtual value) information, PMW letter
Number control IGBT drive circuit, to make the electric current for flowing through IGBT and PMW signal have same duty cycle, to export electric current cocurrent
Helmholtz coil 2 is crossed, compensation magnetic field Bb28 is generated, compensation magnetic field Bb is up to 60mT, and size accuracy controls within 1%；Line
The receiving unit for enclosing drive module uses communication chip MAX487, and PMW generator uses 51 single-chip microcontrollers, capable of emitting 1kHz to 1MHz
Square-wave signal；IGBT drive module and IGBT all use high-speed high-power element, are switched on or off speed in 1 microsecond, from
And make the error for compensating magnetic field Bb within 1%.
PMW generator current acquisition unit 8 and is mounted on conducting wire 16 by the feedback control of the signal of current acquisition unit 8
On current probe be connected.
As shown in fig. 6, battery charging module include transformer, AC-DC rectification module, electric current I- voltage U conversion circuit and
Filter unit is connected before transformer with conducting wire 15, is connected afterwards with AC-DC rectification module, obtained DC current is successively through electric current
It is connected after I- voltage U conversion circuit and filter unit with conducting wire 22；When power network line operates normally, vacuum switch flows through sine
Electric current generates sinusoidal induced current in Helmholtz coil, and electric current amplifies through transformer, and rectifies through AC-DC rectification module,
Again through filtering unit filters, finally becomes DC voltage and be added on battery；AC-DC rectification module built-in over-voltage protective unit,
Protect battery.
Helmholtz coil 2 is made of I-beam wheel, bracket and winding, has good insulation and high temperature resistant, coil with arc-chutes
There are leading-out terminal 26 and end of incoming cables 25, end of incoming cables 25 is connect through conducting wire 17 with battery terminal negative, and leading-out terminal 26 and two-way opened correlate
It connects；When coil flows through electric current, all the points in coil can generate the magnetic field proportional to electric current, and magnetic field distribution is in coil
Radius 0 is constant to size in the range of 10mm on central cross-section, fluctuates within 1%；Therefore this cross section vacuum is placed on to open
Two contact centers are closed, that is, are placed on the center of zero area's electric arc, accurately can apply uniform compensation magnetic field to zero area's electric arc,
Compensated 0th area magnetic field 30 is entirely 0.
Battery uses high-power high voltage lithium battery array or capacitor array, pressure-resistant 500V, and moment maximum power is
20000W or more.
The above is only the preferred embodiment of the present invention, is not limited to the technical solution, and should be referred to
Out, those skilled in the art can also make under the premise of being or else detached from technical solution of the present invention and further improve and change
Become, these improve and change and should all be included within the scope of protection of the present invention.
Claims (10)
1. a kind of vertical magnetic vacuum arc-chutes arc region remanent magnetism autocompensation installation, including vertical magnetic vacuum arc-chutes, it is characterised in that:
The remanent magnetism autocompensation installation includes Helmholtz coil, two-way choice switch module, coil drive module, battery charging mould
Block, battery, intelligent total control module and automatic detection module；
Static contact, moving contact, permanent magnet mechanism and drive rod are provided in the vertical magnetic vacuum arc-chutes, drive rod is arranged in permanent magnetism
In mechanism, drive rod is connect by insulating bar with moving contact, and Helmholtz coil, Hai Muhuo are provided on static contact and moving contact
Hereby the leading-out terminal of coil is connect with the input terminal of two-way choice switch module, and the one of the end of incoming cables of Helmholtz coil and battery
Pole connection, the output end of two-way choice switch module are connect with coil drive module and battery charging module respectively, coil drive
Module and battery charging module are connect with another pole of battery respectively；Automatic detection mould is provided on vertical magnetic vacuum arc-chutes
Block, automatic detection module are connect with intelligent total control module, intelligent total control module respectively with coil drive module and two-way choosing
Select switch module connection.
2. vertical magnetic vacuum arc-chutes arc region according to claim 1 remanent magnetism autocompensation installation, it is characterised in that: described
Automatic detection module includes current transformer, displacement sensor and data acquisition unit, and current transformer setting goes out in arc-chutes
On line, displacement sensor is arranged on drive rod, and current transformer and displacement sensor are connect with data acquisition unit respectively, number
It is connect according to acquisition unit with intelligent total control module.
3. vertical magnetic vacuum arc-chutes arc region according to claim 1 remanent magnetism autocompensation installation, it is characterised in that: described
It is provided with the distribution of zero area's remanent magnetism of contact difference Kai Ju in intelligent total control module, is provided with relay protection devices on intelligent total control module
Cut-off the communication interface of signal.
4. vertical magnetic vacuum arc-chutes arc region according to claim 1 remanent magnetism autocompensation installation, it is characterised in that: described
Two-way choice switch module is made of relay I, relay II and its driving circuit I, driving circuit II, relay I and battery
Charging module connection, relay II are connect with coil drive module；Driving circuit I and driving circuit II respectively with intelligent master control
Module connection.
5. vertical magnetic vacuum arc-chutes arc region according to claim 1 remanent magnetism autocompensation installation, it is characterised in that: described
Coil drive module is made of coil drive control unit, insulated gate bipolar transistor and current acquisition unit, current acquisition
Unit is connect with coil drive control unit, and insulated gate bipolar transistor connects with two-way choice switch module and battery respectively
It connects, insulated gate bipolar transistor is controlled by coil drive control unit.
6. vertical magnetic vacuum arc-chutes arc region according to claim 5 remanent magnetism autocompensation installation, it is characterised in that: described
Coil drive control unit is double by signal receiving circuit, PMW generator, bipolar transistor driving circuit of insulated gate and insulated gate
Bipolar transistor composition, intelligent total control module are connect with signal receiving circuit, and signal receiving circuit is connect with PMW, and PMW occurs
Device is connect with bipolar transistor driving circuit of insulated gate, and bipolar transistor driving circuit of insulated gate and insulated gate bipolar are brilliant
The connection of body pipe.
7. vertical magnetic vacuum arc-chutes arc region according to claim 1 remanent magnetism autocompensation installation, it is characterised in that: described
Battery charging module includes transformer, AC-DC rectification module, electric current I- voltage U conversion circuit and filter unit composition, transformer
It is preceding to be connect with two-way choice switch module, it is connect after transformer with AC-DC rectification module, AC-DC rectification module and electric current I- electricity
The connection of U conversion circuit is pressed, electric current I- voltage U conversion circuit is connect with filter unit, and filter unit is connect with battery.
8. vertical magnetic vacuum arc-chutes arc region according to claim 1 remanent magnetism autocompensation installation, it is characterised in that: described
Battery is high-voltage capacitance array or high pressure lithium battery array battery.
9. vertical magnetic vacuum arc-chutes arc region according to claim 1 remanent magnetism autocompensation installation, it is characterised in that: described
Helmholtz coil is fixed on static contact and moving contact using high-voltage isulation refractory material.
10. a kind of operation method of vertical magnetic vacuum arc-chutes arc region remanent magnetism autocompensation installation, it is characterised in that: including following
Step:
S101: what whether intelligent total control module received relay protection devices cut-offs signal, if so, thening follow the steps S102；If it is not,
Then execute S109；
S102: end of incoming cables (26) and conducting wire (16) is connected in intelligent total control module control two-way choice switch；
S103: automatic detection module detection principal current (27) and vacuum switch are opened away from d；
S104: intelligent total control module reads principal current (27), opens away from d and built-in zero area's remanent magnetism distribution (31) data；
S105: intelligent total control module obtains the magnetic field strength B(31 that should be compensated away from d and distributed data (31) according to opening) (effectively
Value), while principal current (27) zero passage point moment t(29 is predicted according to principal current data)；
S106: intelligent total control module issues control signal to coil drive module according to calculating and prediction result；
S107: coil drive module generates square wave current；
S108: electric current generates compensation magnetic field Bb(28 in coil)；
S109: end of incoming cables (26) and conducting wire (15) is connected in intelligent total control module control two-way choice switch；
S110: battery charging module work, battery charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811548088.5A CN109545617B (en) | 2018-12-18 | 2018-12-18 | Automatic compensation device for residual magnetism in arc area of longitudinal magnetic vacuum arc extinguish chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811548088.5A CN109545617B (en) | 2018-12-18 | 2018-12-18 | Automatic compensation device for residual magnetism in arc area of longitudinal magnetic vacuum arc extinguish chamber |
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| CN109545617A true CN109545617A (en) | 2019-03-29 |
| CN109545617B CN109545617B (en) | 2020-05-08 |
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| CN201811548088.5A Active CN109545617B (en) | 2018-12-18 | 2018-12-18 | Automatic compensation device for residual magnetism in arc area of longitudinal magnetic vacuum arc extinguish chamber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113381740A (en) * | 2021-03-19 | 2021-09-10 | 国网内蒙古东部电力有限公司呼伦贝尔供电公司 | Compact hybrid isolation Marx pulse generator for plasma discharge |
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| CN113381740A (en) * | 2021-03-19 | 2021-09-10 | 国网内蒙古东部电力有限公司呼伦贝尔供电公司 | Compact hybrid isolation Marx pulse generator for plasma discharge |
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