CN107104449A - Electronic type phase inversion is switched - Google Patents
Electronic type phase inversion is switched Download PDFInfo
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- CN107104449A CN107104449A CN201710225473.5A CN201710225473A CN107104449A CN 107104449 A CN107104449 A CN 107104449A CN 201710225473 A CN201710225473 A CN 201710225473A CN 107104449 A CN107104449 A CN 107104449A
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/26—Arrangements for eliminating or reducing asymmetry in polyphase networks
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- H02J13/0017—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
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Abstract
Proposed by the present invention is a kind of electronic type phase inversion switch, and its structure includes phase inversion module；The phase inversion module includes A magnetic latching relays, B magnetic latching relays, C magnetic latching relays, D magnetic latching relays, E magnetic latching relays, F magnetic latching relays, G magnetic latching relays, H magnetic latching relays, I magnetic latching relays, A anti-parallel thyristors, B anti-parallel thyristors, C anti-parallel thyristors, D anti-parallel thyristors, E anti-parallel thyristors, F anti-parallel thyristors, G anti-parallel thyristors, H anti-parallel thyristors, I anti-parallel thyristors.The beneficial effects of the present invention are：Switched using electronic type phase inversion, reduce the switching time of mechanical phase inversion switch, by phase inversion time control in 11ms, realize user side and do not power off commutation, while improving reliability and simplifying electrical control.
Description
Technical field
The present invention relates to a kind of electronic type phase inversion switch, belong to electric power quality control technology field.
Background technology
The main cause of low-voltage network three-phase load unbalance is that three-phase load is asymmetric, due to the inequality of single-phase user
Even distribution and uncontrollable increase-volume, the access of great power single phase load, electricity consumption behavior are had randomness by seasonal effect, and right
Three-phrase burden balance management such as thinks little of at the reason so that three-phase load unbalance problem is more serious.
Phase inversion switch is the common equipment that three-phase imbalance problem is handled on current power network；When a certain phase firewire electric current is excessive
When, the live wire phase sequence of phase inversion switch switching user side connection can be led to so that connected load it is heavier one to be mutually transferred to load light
That phase, the utilization rate and availability of grid power are improved by balancing each phase current；The most of phase inversions used at present are opened
Pass is, based on mechanical, to connect to realize phase inversion around the rotation correcting of center of turntable by moving contact；This switch
Great advantage is that it is naturally mutual exclusion, that is, will not phase fault；But mechanical switch is by having the disadvantage that:1st, electrically
Control is cumbersome, is generally realized by motor, and the usual degree of reliability of motor is not high, and rotational angle is difficult to control to；2、
During mechanical switch, when electric current is larger, there is phenomenon of arc discharge, contact can be burnt out when serious；3rd, commutation switching time is longer, generally
In more than 200ms, user side equipment is caused to be restarted.
The content of the invention
Proposed by the present invention is a kind of electronic type phase inversion switch, when its purpose is intended to reduce the switching of mechanical phase inversion switch
Between, while improve reliability and simplify electrical control, realize that the regulating effect of three-phase load unbalance is accurate, safety, economy and
It is easily controllable.
The technical solution of the present invention：Electronic type phase inversion is switched, and its structure includes phase inversion module；The phase inversion module bag
Include A magnetic latching relays 1, B magnetic latching relays 2, C magnetic latching relays 3, D magnetic latching relays 4, E magnetic latching relays 5,
F magnetic latching relays 6, G magnetic latching relays 7, H magnetic latching relays 8, I magnetic latching relays 9, A anti-parallel thyristors 11, B
Anti-parallel thyristor 12, C anti-parallel thyristors 13, D anti-parallel thyristors 14, E anti-parallel thyristors 15, F anti-parallel thyristors
16th, G anti-parallel thyristors 17, H anti-parallel thyristors 18, I anti-parallel thyristors 19；Wherein, A magnetic latching relays 1 and A is anti-simultaneously
Join IGCT 11 in parallel, B magnetic latching relays 2 are in parallel with B anti-parallel thyristors 12, C magnetic latching relays 3 are brilliant with C inverse parallels
Brake tube 13 is in parallel；D magnetic latching relays 4 are in parallel with D anti-parallel thyristors 14, E magnetic latching relays 5 and E anti-parallel thyristors
15 is in parallel, and F magnetic latching relays 6 are in parallel with F anti-parallel thyristors 16, and G magnetic latching relays 7 and G anti-parallel thyristors 17 are simultaneously
Connection, H magnetic latching relays 8 are in parallel with H anti-parallel thyristors 18, and I magnetic latching relays 9 are in parallel with I anti-parallel thyristors 19.
The beneficial effects of the present invention are：Switched using electronic type phase inversion, reduce the switching time of mechanical phase inversion switch,
By phase inversion time control in 11ms, realize user side and do not power off commutation, while improving reliability and simplifying electric-controlled
System.
Brief description of the drawings
Accompanying drawing 1 is electronic type phase inversion switching system schematic diagram.
Accompanying drawing 2 is electronic type phase inversion switch structure diagram.
Accompanying drawing 3 is phase inversion modular structure schematic diagram.
Accompanying drawing 4 is phase inversion load-side oscillogram clockwise.
Accompanying drawing 5 is phase inversion load-side oscillogram counterclockwise.
In accompanying drawing 1 be A magnetic latching relays, 2 be B magnetic latching relays, 3 be C magnetic latching relays, 4 be D magnetic keep after
Electrical equipment, 5 be E magnetic latching relays, 6 be F magnetic latching relays, 7 be G magnetic latching relays, 8 be H magnetic latching relays, 9 be I
Magnetic latching relay, 11 be A anti-parallel thyristors, 12 be B anti-parallel thyristors, 13 be C anti-parallel thyristors, 14 be D anti-simultaneously
Connection IGCT, 15 be E anti-parallel thyristors, 16 be F anti-parallel thyristors, 17 be G anti-parallel thyristors, 18 be that H inverse parallels are brilliant
Brake tube, 19 are I anti-parallel thyristors.
Embodiment
Electronic type phase inversion is switched, and its structure includes phase inversion module；The phase inversion module includes A magnetic latching relays 1, B magnetic
Guard relay 2, C magnetic latching relays 3, D magnetic latching relays 4, E magnetic latching relays 5, F magnetic latching relays 6, G magnetic are protected
Hold relay 7, H magnetic latching relays 8, I magnetic latching relays 9, A anti-parallel thyristors 11, B anti-parallel thyristors 12, C instead simultaneously
Join IGCT 13, D anti-parallel thyristors 14, E anti-parallel thyristors 15, F anti-parallel thyristors 16, G anti-parallel thyristors 17, H
Anti-parallel thyristor 18, I anti-parallel thyristors 19；Wherein, A magnetic latching relays 1 are in parallel with A anti-parallel thyristors 11, and B magnetic is protected
Hold relay 2 in parallel with B anti-parallel thyristors 12, C magnetic latching relays 3 are in parallel with C anti-parallel thyristors 13；D magnetic keep after
Electrical equipment 4 is in parallel with D anti-parallel thyristors 14, and E magnetic latching relays 5 are in parallel with E anti-parallel thyristors 15, F magnetic latching relays 6
In parallel with F anti-parallel thyristors 16, G magnetic latching relays 7 are in parallel with G anti-parallel thyristors 17, and H magnetic latching relays 8 and H is anti-
Parallel thyristors 18 are in parallel, and I magnetic latching relays 9 are in parallel with I anti-parallel thyristors 19.
The A magnetic latching relays 1, B magnetic latching relays 2, C magnetic latching relays 3, A anti-parallel thyristors 11, B are anti-
Parallel thyristors 12, C anti-parallel thyristors 13 connect A phase lines；D magnetic latching relays 4, E magnetic latching relays 5, F magnetic keep after
Electrical equipment 6, D anti-parallel thyristors 14, E anti-parallel thyristors 15, F anti-parallel thyristors 16 connect B phase lines；G magnetic latching relays
7th, H magnetic latching relays 8, I magnetic latching relays 9, G anti-parallel thyristors 17, H anti-parallel thyristors 18, I anti-parallel thyristors
19 connect C phase lines.
Electronic type phase inversion is switched, and its structure also includes power module, control module, GPRS communication module, carrier communication mould
Block, optical coupling isolation circuit；Wherein, control module includes including TXD1 on cpu chip STM32F401, cpu chip STM32F401
Port, RXD1 ports, TXD2 ports, RXD2 ports, GPIO port；TXD1 ports, RXD1 ports are collectively as USRAT1 serial ports
It is connected with the USRAT in GPRS communication module, TXD2 ports, RXD2 ports are collectively as USRAT2 serial ports and carrier communication module
On USRAT connections；Control module controls optical couple isolation drive circuits, and then drive control phase inversion module by GPIO mouthfuls.
The power module, using linear power supply by three-phase 220V voltage conversions into 3 3.3v main roads and 1 12V bypass,
3 3.3v main roads are respectively used to power to control module, GPRS communication module, carrier communication module, and 1 12V bypass passes through light
Coupling isolation circuit gives phase inversion module for power supply.
The power supply that the power module is mainly responsible for whole system using linear power supply is powered, and is provided for system reliability service
Important leverage；The system phase inversion of control module major control phase inversion module and the regulation of system operation etc.；GPRS communication module is adopted
With remote M72D modules, and the carrier communication module TCC081C mainly responsible data interactions with master system is moved, long-range adjust is realized
Degree and Data Collection etc.；The phase inversion of the operation of phase inversion module basic control system and the effect of uneven regulation.
The GPRS communication module uses Yi Yuan companies M72D modules, is connected with control main website by wireless GPRS channel,
Control main website to send to GPRS communication module by radio to order, GPRS communication module is obtained after control command, and will be corresponding
Control command be sent to control module.
The carrier communication module, using Ding Xin companies Three Phase Carrier Based communication module TCC081C
, control module is sent to by power line carrier and phase inversion controller communication, and by corresponding control command.
The control module also includes storage chip AT25DF321, house dog MX706 and button indicating member；Control mould
Block is communicated by USRAT1 serial ports and GPRS communication module, and control module is communicated by USRAT2 serial ports and carrier communication module,
Control module controls optical couple isolation drive circuits, and then drive control phase inversion module by GPIO mouthfuls.
As shown in figure 3, phase inversion module is using magnetic latching relay and anti-parallel thyristor principle in parallel：Magnetic keep after
Idle during electrical work, but the reliable division time is long, generally in more than 20ms, the magnetic latching relay division time of high current
It is longer, and switch and improper can cause arcing；The advantage of IGCT is that switching time is short, and zero passage is turned off naturally, will not arcing, shortcoming
There is 1V pressure drop when being conducting, power consumption is big during high current；Using two kinds of devices method in parallel, magnetic latching relay can be avoided
With each own shortcoming of IGCT, reach electronic type phase inversion switch without operation power consumption, phase inversion time short purpose.
The application method of phase inversion module：
（1）During original state, A magnetic latching relays 1, E magnetic latching relays 5, I magnetic latching relays 9 are closed, and its residual magnetism is kept
Relay and all IGCTs are all off, now circuit by A magnetic latching relays 1, E magnetic latching relays 5, I magnetic keep after
Electrical equipment 9 is powered, and load-side outlet phase sequence is A, B, C；
（2）After phase inversion module receives the order of phase inversion clockwise：
2.1 open A anti-parallel thyristors 11, E anti-parallel thyristors 15, I anti-parallel thyristors 19, wait 20ms；
2.2 A magnetic latching relays 1, E magnetic latching relays 5, I magnetic latching relays 9 are disconnected, and wait 100ms, it is ensured that magnetic is kept
Relay is fully disconnected, and now circuit is powered by A anti-parallel thyristors 11, E anti-parallel thyristors 15, I anti-parallel thyristors 19,
Load-side outlet phase sequence is A, B, C；
2.3 close A anti-parallel thyristors 11, E anti-parallel thyristors 15, I anti-parallel thyristors 19, wait 11ms, now instead simultaneously
Turned off naturally during connection thyristor current flows zero passage, without arcing；
2.4 open B anti-parallel thyristors 12, F anti-parallel thyristors 16, G anti-parallel thyristors 17, and now circuit is by B inverse parallels
IGCT 12, F anti-parallel thyristors 16, G anti-parallel thyristors 17 are powered, and load-side outlet phase sequence is C, A, B；
2.5 open B magnetic latching relays 2, F magnetic latching relays 6, G magnetic latching relays 7, wait 100ms, it is ensured that magnetic is kept
Relay closes completely；
2.6 shut-off B anti-parallel thyristors 12, F anti-parallel thyristors 16, G anti-parallel thyristors 17, wait 20ms, now circuit
Powered by B magnetic latching relays 2, F magnetic latching relays 6, G magnetic latching relays 7, load-side outlet phase sequence is C, A, B.
2.7 complete phase inversion clockwise；
（3）When phase inversion module receive counterclockwise to phase inversion order after：
3.1 open A anti-parallel thyristors 11, E anti-parallel thyristors 15, I anti-parallel thyristors 19, wait 20ms；
3.2 A magnetic latching relays 1, E magnetic latching relays 5, I magnetic latching relays 9 are disconnected, and wait 100ms, it is ensured that magnetic is kept
Relay is fully disconnected, and now circuit is powered by A anti-parallel thyristors 11, E anti-parallel thyristors 15, I anti-parallel thyristors 19,
Load-side outlet phase sequence is A, B, C；
3.3 close A anti-parallel thyristors 11, E anti-parallel thyristors 15, I anti-parallel thyristors 19, wait 11ms, now instead simultaneously
Turned off naturally during connection thyristor current flows zero passage, without arcing；
3.4 open C anti-parallel thyristors 13, D anti-parallel thyristors 14, H anti-parallel thyristors 18, and now circuit is by C inverse parallels
IGCT 13, D anti-parallel thyristors 14, H anti-parallel thyristors 18 are powered, and load-side outlet phase sequence is B, C, A；
3.5 open C magnetic latching relays 3, D magnetic latching relays 4, H magnetic latching relays 8, wait 100ms, it is ensured that magnetic is kept
Relay closes completely；
3.6 shut-off C anti-parallel thyristors 13, D anti-parallel thyristors 14, H anti-parallel thyristors 18, wait 20ms；Now circuit
By C magnetic latching relays 3, D magnetic latching relays 4, H magnetic latching relays 8, power supply, load-side outlet phase sequence is B, C, A；
3.7 complete counterclockwise to phase inversion；
It is received again by the same flow of phase inversion command operation process（2）, flow（3）.
In step 2.3,3.3, the reason for waiting 11ms is：The work frequency of China's power network is must in 50Hz, 10ms
Current zero-crossing point is had, IGCT is closed naturally in current zero-crossing point, is not in arcing.
Embodiment 1
Line voltage 220V, frequency 50HZ, phase inversion clockwise：
1）During original state, A magnetic latching relays 1, E magnetic latching relays 5, I magnetic latching relays 9 are closed, and its residual magnetism is kept
Relay, and all IGCTs are all off, now circuit by A magnetic latching relays 1, E magnetic latching relays 5, I magnetic keep after
Electrical equipment 9 is powered, and load-side outlet phase sequence is A, B, C；
2）After the order for receiving phase inversion clockwise：
2.1 open A anti-parallel thyristors 11, E anti-parallel thyristors 15, I anti-parallel thyristors 19, wait 20ms；
2.2 A magnetic latching relays 1, E magnetic latching relays 5, I magnetic latching relays 9 are disconnected, and wait 100ms, it is ensured that magnetic is kept
Relay is fully disconnected, and now circuit is powered by A anti-parallel thyristors 11, E anti-parallel thyristors 15, I anti-parallel thyristors 19,
Load-side outlet phase sequence is A, B, C；
2.3 see Fig. 4, and A anti-parallel thyristors 11, E anti-parallel thyristors 15, I anti-parallel thyristors 19 are closed at the t1 moment, wait
11ms, is now turned off, without arcing naturally during anti-parallel thyristor current over-zero；
2.4 be 11ms away from the t1 moment at t2 moment, t2 moment, opens B anti-parallel thyristors 12, F anti-parallel thyristors 16, G anti-
Parallel thyristors 17, now circuit powered by B anti-parallel thyristors 12, F anti-parallel thyristors 16, G anti-parallel thyristors 17, bear
It is C, A, B to carry side outlet phase sequence；
2.5 open B magnetic latching relays 2, F magnetic latching relays 6, G magnetic latching relays 7, wait 100ms, it is ensured that magnetic is kept
Relay closes completely；
2.6 shut-off B anti-parallel thyristors 12, F anti-parallel thyristors 16, G anti-parallel thyristors 17, wait 20ms；Now circuit
By B magnetic latching relays 2, F magnetic latching relays 6, G magnetic latching relays 7, power supply, load-side outlet phase sequence is C, A, B；
2.7 complete phase inversion clockwise, and voltage oscillogram is shown in Fig. 4.
Embodiment 2
Line voltage 220V, frequency 50HZ, phase inversion counterclockwise：
1）During original state, A magnetic latching relays 1, E magnetic latching relays 5, I magnetic latching relays 9 are closed, and its residual magnetism is kept
Relay, and all IGCTs are all off, now circuit by A magnetic latching relays 1, E magnetic latching relays 5, I magnetic keep after
Electrical equipment 9 is powered, and load-side outlet phase sequence is A, B, C；
2）After the order for receiving phase inversion counterclockwise：
2.1 open A anti-parallel thyristors 11, E anti-parallel thyristors 15, I anti-parallel thyristors 19, wait 20ms；
2.2 A magnetic latching relays 1, E magnetic latching relays 5, I magnetic latching relays 9 are disconnected, and wait 100ms, it is ensured that magnetic is kept
Relay is fully disconnected, and now circuit is powered by A anti-parallel thyristors 11, E anti-parallel thyristors 15, I anti-parallel thyristors 19,
Load-side outlet phase sequence is A, B, C；
2.3 see Fig. 5, and A anti-parallel thyristors 11, E anti-parallel thyristors 15, I anti-parallel thyristors 19 are closed at the t1 moment, wait
11ms, is now turned off, without arcing naturally during anti-parallel thyristor current over-zero；
2.4 be 11ms away from the t1 moment at t2 moment, t2 moment, opens C anti-parallel thyristors 13, D anti-parallel thyristors 14, H anti-
Parallel thyristors 18, now circuit powered by C anti-parallel thyristors 13, D anti-parallel thyristors 14, H anti-parallel thyristors 18, bear
It is B, C, A to carry side outlet phase sequence；
2.5 open C magnetic latching relays 3, D magnetic latching relays 4, H magnetic latching relays 8, wait 100ms, it is ensured that magnetic is kept
Relay closes completely；
2.6 shut-off C anti-parallel thyristors 13, D anti-parallel thyristors 14, H anti-parallel thyristors 18, wait 20ms.Now circuit
By C magnetic latching relays 3, D magnetic latching relays 4, H magnetic latching relays 8, power supply, load-side outlet phase sequence is B, C, A；
2.7 complete phase inversion counterclockwise, and voltage oscillogram is shown in Fig. 5.
Claims (4)
1. electronic type phase inversion is switched, it is characterized in that including phase inversion module；The phase inversion module includes A magnetic latching relays, B magnetic and protected
Hold relay, C magnetic latching relays, D magnetic latching relays, E magnetic latching relays, F magnetic latching relays, G magnetic and keep relay
Device, H magnetic latching relays, I magnetic latching relays, A anti-parallel thyristors, B anti-parallel thyristors, C anti-parallel thyristors, D are anti-
Parallel thyristors, E anti-parallel thyristors, F anti-parallel thyristors, G anti-parallel thyristors, H anti-parallel thyristors, I inverse parallels are brilliant
Brake tube；Wherein, A magnetic latching relays are in parallel with A anti-parallel thyristors, and B magnetic latching relays are in parallel with B anti-parallel thyristors, C
Magnetic latching relay is in parallel with C anti-parallel thyristors；D magnetic latching relays are in parallel with D anti-parallel thyristors, and E magnetic keeps relay
Device is in parallel with E anti-parallel thyristors, and F magnetic latching relays are in parallel with F anti-parallel thyristors, G magnetic latching relays and G inverse parallels
IGCT is in parallel, and H magnetic latching relays are in parallel with H anti-parallel thyristors, and I magnetic latching relays are in parallel with I anti-parallel thyristors.
2. electronic type phase inversion switch according to claim 1, it is characterized in that also including power module, control module, GPRS
Communication module, carrier communication module, optical coupling isolation circuit；Wherein, control module includes cpu chip STM32F401；Cpu chip
Include TXD1 ports, RXD1 ports, TXD2 ports, RXD2 ports, GPIO port on STM32F401；TXD1 ports, RXD1 ports
It is connected collectively as USRAT1 serial ports with the USRAT in GPRS communication module, TXD2 ports, RXD2 ports are collectively as USRAT2
Serial ports is connected with the USRAT on carrier communication module；Control module is driven by GPIO mouthfuls of control optical couple isolation drive circuits
Dynamic control phase inversion module.
3. electronic type phase inversion switch according to claim 2, it is characterized in that the power module uses linear power supply by three
Phase 220V voltage conversions are into 3 3.3v main roads and 1 12V bypass, and 3 3.3v main roads are respectively used to lead to control module, GPRS
News module, carrier communication module are powered, and 1 12V bypass gives phase inversion module for power supply by optical coupling isolation circuit.
4. electronic type phase inversion switch as claimed in claim 1, it is characterized in that the application method of the phase inversion module：
（1）During original state, A magnetic latching relays, E magnetic latching relays, I magnetic latching relays close, its residual magnetism keep after
Electrical equipment and all IGCTs are all off, and now circuit is by A magnetic latching relays, E magnetic latching relays, I magnetic latching relays
Power supply, load-side outlet phase sequence is A, B, C；
（2）After phase inversion module receives the order of phase inversion clockwise：
2.1 open A anti-parallel thyristors, E anti-parallel thyristors, I anti-parallel thyristors, wait 20ms；
2.2 A magnetic latching relays, E magnetic latching relays, I magnetic latching relays disconnect, wait 100ms, it is ensured that magnetic keep after
Electrical equipment is fully disconnected, and now circuit is powered by A anti-parallel thyristors, E anti-parallel thyristors, I anti-parallel thyristors, and load-side goes out
Line phase sequence is A, B, C；
2.3 close A anti-parallel thyristors, E anti-parallel thyristors, I anti-parallel thyristors, wait 11ms, now inverse parallel crystalline substance lock
Turned off naturally during tube current zero passage, without arcing；
2.4 open B anti-parallel thyristors, F anti-parallel thyristors, G anti-parallel thyristors, now circuit by B anti-parallel thyristors,
F anti-parallel thyristors, G anti-parallel thyristors are powered, and load-side outlet phase sequence is C, A, B；
2.5 open B magnetic latching relays, F magnetic latching relays, G magnetic latching relays, wait 100ms, it is ensured that magnetic keeps relay
Device closes completely；
2.6 shut-off B anti-parallel thyristors, F anti-parallel thyristors, G anti-parallel thyristors, wait 20ms, now circuit is by B magnetic
Guard relay, F magnetic latching relays, G magnetic latching relays are powered, and load-side outlet phase sequence is C, A, B；
2.7 complete phase inversion clockwise；
（3）When phase inversion module receive counterclockwise to phase inversion order after：
3.1 open A anti-parallel thyristors, E anti-parallel thyristors, I anti-parallel thyristors, wait 20ms；
3.2 A magnetic latching relays, E magnetic latching relays, I magnetic latching relays disconnect, wait 100ms, it is ensured that magnetic keep after
Electrical equipment is fully disconnected, and now circuit is powered by A anti-parallel thyristors, E anti-parallel thyristors, I anti-parallel thyristors, and load-side goes out
Line phase sequence is A, B, C；
3.3 close A anti-parallel thyristors, E anti-parallel thyristors, I anti-parallel thyristors, wait 11ms, now inverse parallel crystalline substance lock
Turned off naturally during tube current zero passage, without arcing；
3.4 open C anti-parallel thyristors, D anti-parallel thyristors, H anti-parallel thyristors, and now circuit is by the brilliant lock of C inverse parallels
Pipe, D anti-parallel thyristors, H anti-parallel thyristors are powered, and load-side outlet phase sequence is B, C, A；
3.5 open C magnetic latching relays, D magnetic latching relays, H magnetic latching relays, wait 100ms, it is ensured that magnetic keep after
Electrical equipment closes completely；
3.6 shut-off C anti-parallel thyristors, D anti-parallel thyristors, H anti-parallel thyristors, wait 20ms；Now circuit is by C magnetic
Guard relay, D magnetic latching relays, H magnetic latching relays, power supply, load-side outlet phase sequence is B, C, A；
3.7 complete counterclockwise to phase inversion；
It is received again by the same flow of phase inversion command operation process（2）, flow（3）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710225473.5A CN107104449A (en) | 2017-04-07 | 2017-04-07 | Electronic type phase inversion is switched |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710225473.5A CN107104449A (en) | 2017-04-07 | 2017-04-07 | Electronic type phase inversion is switched |
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| Publication Number | Publication Date |
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| CN107104449A true CN107104449A (en) | 2017-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710225473.5A Pending CN107104449A (en) | 2017-04-07 | 2017-04-07 | Electronic type phase inversion is switched |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957548A (en) * | 2017-12-12 | 2018-04-24 | 国网浙江建德市供电有限公司 | A kind of divide-shut brake synchronized detection device for three-phase breaker |
| CN110098625A (en) * | 2019-05-13 | 2019-08-06 | 武汉武新电气科技股份有限公司 | A kind of commutation device and method of seamless switching |
| CN110531146A (en) * | 2019-09-02 | 2019-12-03 | 北京智芯微电子科技有限公司 | Zero crossing detection device, method and the computer storage medium of Three Phase Carrier Based communication module |
| CN112416439A (en) * | 2019-08-20 | 2021-02-26 | 广州弘度信息科技有限公司 | Remote restarting system of server and control method thereof |
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| CN205104911U (en) * | 2015-10-15 | 2016-03-23 | 扬州汇洁能电力电子设备有限公司 | Novel lossless balanced load of distributing type three -phase device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957548A (en) * | 2017-12-12 | 2018-04-24 | 国网浙江建德市供电有限公司 | A kind of divide-shut brake synchronized detection device for three-phase breaker |
| CN110098625A (en) * | 2019-05-13 | 2019-08-06 | 武汉武新电气科技股份有限公司 | A kind of commutation device and method of seamless switching |
| CN112416439A (en) * | 2019-08-20 | 2021-02-26 | 广州弘度信息科技有限公司 | Remote restarting system of server and control method thereof |
| CN112416439B (en) * | 2019-08-20 | 2024-03-05 | 广州弘度信息科技有限公司 | Remote restarting system of server and control method thereof |
| CN110531146A (en) * | 2019-09-02 | 2019-12-03 | 北京智芯微电子科技有限公司 | Zero crossing detection device, method and the computer storage medium of Three Phase Carrier Based communication module |
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