CN104426150B - Single-phase big electric current combination switch and control method thereof - Google Patents
Single-phase big electric current combination switch and control method thereof Download PDFInfo
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- CN104426150B CN104426150B CN201310376977.9A CN201310376977A CN104426150B CN 104426150 B CN104426150 B CN 104426150B CN 201310376977 A CN201310376977 A CN 201310376977A CN 104426150 B CN104426150 B CN 104426150B
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Abstract
The present invention provides a kind of single-phase big electric current combination switch, including shell, socket and circuit structure, this circuit structure includes: the monostable control module of control signal incoming end, input control module, power module, power access end, NE555, zero passage output control module, thyristor module, connect capacitance terminal, relay control module, magnetic latching relay and major loop incoming end.The single-phase big electric current combination switch of the present invention uses IGCT to connect circuit when no-voltage, and response time is less than 20ms, zero current time-division deenergizing, connects and breaking course is without impact surge current, and fast response time；The contact turning A.C. contactor in turn on thyristors 50ms carries, and without pressure drop, lossless, is also not required to install additional radiator, extends the service life of combination switch；This single-phase big electric current combination switch uses dust seal ferrum enclosure designs, is particularly well-suited under dust environment the switching at runtime of big electric current list phase compensation capacitor.
Description
Technical field
The present invention relates to Technique of Compensating Capacitance for Reactive field, particularly relate to a kind of single-phase big electric current combination switch
And control method.
Background technology
Electric substation in power system or directly install reactive power power supply in electric power users electric substation, with
Change the flowing of reactive power in power system, thus improve the voltage levvl of power system, reduce network
Being lost and improve the dynamic property of power system, this technical measures are referred to as reactive power compensation.
In the implementation process of electric network reconstruction, generally require increase shnt capacitor reactive power compensator, right
Improve supply voltage quality, excavate the potentiality of power supply unit, reduce line loss and energy-conservation all play positive work
With.
Reactive power compensation device mostly uses the switching side such as A.C. contactor, controllable silicon electrical switch in early days
Formula, A.C. contactor can produce the biggest shoving and overvoltage, the height of transient state when capacitor puts into and excises
Pressure and switching dash current can cause capacitor insulation to puncture, probe of contactor scaling loss；And controllable silicon electronics
Although switch solves the problems such as shoving during capacitor switching, overvoltage breaking arc, but its heat radiation
Difficulty, additional auxiliary heat dissipation device is many, structure is complicated, cost is high for need, takes up room big, and two ways is mended
Repay effect and the most not ideal enough on service life.
In recent years, Power Electronic Technique and the development of controllable silicon technology, at reactive power compensation device
In derive a kind of new device combination switch.The maximum carrying electric current of the combination switch of the design is
Single phase ac 400A, three main contact heads of the B170 type A.C. contactor that it uses are used in parallel.We
Know that A.C. contactor is to have certain overload capacity, non-repetitive general overload the most in short-term
A.C. contactor main contacts will not be caused to damage.But when reality is applied, by the three of A.C. contactor masters
Contact is used in parallel, and running current exceedes the rated current of A.C. contactor main contacts simultaneously, without
Controllable silicon electrical switch carries, then when A.C. contactor disjunction, because three main contacts disjunctions is non-same
Shi Xing, then the main contacts of last disjunction will be by serious ablation, cannot if the contact of last disjunction is ablated
Being continuing with, the most remaining main contacts will face even more serious ablation, until last all main contacts are equal
Ablated damage, but during disjunction, use the combination switch of controllable silicon electrical switch carrying can avoid case above.
Summary of the invention
It is an object of the invention to provide a kind of single-phase big electric current combination switch, it " is cut " and " throwing " mistake
Cheng Junwu impact surge current produces, and turns ac contactor contact carrying in its interior turn on thyristors 50ms,
Without pressure drop, lossless, it is not required to install additional radiator, extends the service life of combination switch, and can be suitable for
In dust environment.
Another object of the present invention is to provide the control method of a kind of single-phase big electric current combination switch, utilize
The control signal of high electronegative potential is converted to control wave by diode clamping circuit, and then can use
Photoelectric isolating device, controls IGCT and connects circuit, zero current time-division deenergizing when no-voltage, connect
With breaking course without impact surge current, and fast response time, capacity of resisting disturbance is strong.
For achieving the above object, the present invention provides a kind of single-phase big electric current combination switch, including: shell, sets
Socket on shell and the circuit structure being located in shell, described circuit structure includes: control signal accesses
Input control module and described input control module that end and described control signal incoming end are electrically connected with are electric
Property connect power module and described power module be electrically connected with power access end and described input control
The monostable control module of NE555 of module electric connection and the monostable control module of described NE555 are electrically connected with
The thyristor module that zero passage output control module and described zero passage output control module are electrically connected with is with described
What thyristor module was electrically connected with connects capacitance terminal and the Control of described input control module electric connection
Magnetic latching relay that module and described relay control module are electrically connected with and with described magnetic latching relay
The major loop incoming end being electrically connected with, described thyristor module is also electrically connected with major loop incoming end, described
Magnetic latching relay also with connect capacitance terminal be electrically connected with, described control signal incoming end, major loop incoming end,
Power access end and connect capacitance terminal all with socket be electrically connected with, described power module is monostable with NE555 the most respectively
Control module and relay control module are electrically connected with.
Described shell uses dust seal design, and its material is ferrum；Described socket is for sealing aviation socket.
Described input control module includes: the first diode, the first chip, the first audion and first to
Four resistance, described first diode has the first anode and the first negative electrode, described first chip have first to
4th pin, described first audion has the first colelctor electrode, the first base stage and the first emitter stage, and described
One anode is electrically connected to control signal incoming end, and described first negative electrode is electrically connected to the first pin, described
First resistance one end is connected to control signal incoming end, and the other end is electrically connected to the second pin, and the described 3rd
Pin is respectively and electrically connected to one end of the second resistance and one end of the 3rd resistance, and described 4th pin electrically connects
Being connected to power module, the described second resistance other end is electrically connected to the first base stage, described 3rd resistance another
One end is electrically connected to ground wire, and described first colelctor electrode is electrically connected to one end of the 4th resistance, and described first
Emitter stage is electrically connected to ground wire, and the other end of described 4th resistance is electrically connected to power module；Described
One chip is photoelectrical coupler chip, and its model is PC817；The monostable control module of described NE555 includes:
5th to the 6th resistance, the first to the 3rd electric capacity and the second chip, described second chip has the five to ten two
Pin, one end of described 5th resistance is electrically connected to power module, and the other end is respectively and electrically connected to second
One end of electric capacity, the 6th pin and the 7th pin, the other end of described second electric capacity is electrically connected to ground wire,
One end of described first electric capacity and one end of the 6th resistance are electrically connected with the first colelctor electrode and the 4th electricity respectively
One end of resistance, the other end of described first electric capacity is electrically connected to ground wire, the other end electricity of described 6th resistance
Property is connected to the 8th pin, and described 5th pin is electrically connected to power module, and described 9th pin electrically connects
Being connected to power module, described tenth pin is electrically connected to zero passage output control module, described 11st pin
Being electrically connected to ground wire, described 12nd pin is electrically connected to one end of the 3rd electric capacity, described 3rd electric capacity
The other end be electrically connected to ground wire；Described second chip is NE555 chip；Described zero output excessively controls mould
Block include the 7th resistance and the second audion, described second audion have the second colelctor electrode, the second base stage and
Second emitter stage, described 7th resistance one end is electrically connected to the tenth pin, and the other end is electrically connected to second
Base stage, described second colelctor electrode is electrically connected to power module, and described second emitter stage is electrically connected to brilliant lock
Tube module；Described relay control module includes: the 8th to the tenth resistance, the second diode and the three or three pole
Pipe, described second diode has second plate and the second negative electrode, and described 3rd audion has the 3rd current collection
Pole, the 3rd base stage and the 3rd emitter stage, one end of described 8th resistance is respectively and electrically connected to the first electric capacity
One end, one end of the 4th resistance, one end of the 6th resistance and the first colelctor electrode, another of described 8th resistance
End is electrically connected to the 3rd base stage, and one end of described 9th resistance is electrically connected to power module, other end electricity
Property is connected to the 3rd colelctor electrode, and described 3rd emitter stage is electrically connected to ground wire, and described second negative electrode electrically connects
Being connected to the other end and the 8th pin of the 6th resistance, described second plate is electrically connected to the one of the tenth resistance
End, the other end of described tenth resistance is electrically connected to magnetic latching relay；Described magnetic latching relay includes:
3rd diode, the 4th audion, relay and A.C. contactor, described 3rd diode has the 3rd sun
Pole and the 3rd negative electrode, described 4th audion has the 4th colelctor electrode, the 4th base stage and the 4th emitter stage, institute
Stating relay and have the 13rd to the 17th pin, described A.C. contactor has the 18th and draws to the 22nd
Foot, described 3rd negative electrode is electrically connected to power module, and described third anode is respectively and electrically connected to the 14th
Pin and the 4th colelctor electrode, described 4th base stage is electrically connected to the other end of the tenth resistance, described 4th
Emitter-base bandgap grading is electrically connected to ground wire, and described 13rd pin is electrically connected to power module, described 15 pin electricity
Property is connected to power access end, and described 16th pin is electrically connected to the 18th pin, and the described 17th draws
Foot is unsettled, and described 19 pins are electrically connected to power access end, and described 20th pin is used for connecting single-phase
The live wire of alternating current, described 21st pin is electrically connected to connect capacitance terminal, and described 22nd pin hangs
Empty；The model of described A.C. contactor is B170, and it has three main contacts, these three main contact parallel connections
Carrying uses；Described thyristor module includes: the 3rd chip, the 11st to the 14th resistance, the 4th to
Five diodes, the 4th to the 5th electric capacity and the first to the second IGCT, described 3rd chip has the 23rd
To the 26th pin, described 4th diode has the 4th anode and the 4th negative electrode, described 5th diode
Having the 5th anode and the 5th negative electrode, described first IGCT has the first control pole, the 6th anode and the 6th
Negative electrode, described second IGCT has the second control pole, the 7th anode and the 7th negative electrode, and the described 23rd
Pin and the second emitter stage are electrically connected with, and described 24 pins are electrically connected to one end of the 11st resistance,
The other end of described 11st resistance is electrically connected to ground wire, and described 25th pin is electrically connected to the tenth
One end of three resistance, the other end of described 13rd resistance respectively with one end of the 14th resistance, the 5th negative electrode,
One end of 5th electric capacity and second control pole be electrically connected with, the other end of described 14th resistance, the 5th anode,
The other end of the 5th electric capacity and the 7th negative electrode all with connect capacitance terminal be electrically connected with, described 26th pin is electrical
One end, the 4th negative electrode, one end of the 4th electric capacity and first with the 12nd resistance controls the most electrically to connect respectively
Connect, the other end of described 12nd resistance, the 4th anode, the other end of the 4th electric capacity, the 6th negative electrode and
Seven anodes are used to connect the live wire of single-phase alternating current, and described 6th anode is electrically connected with connecing capacitance terminal；Institute
The model stating the 3rd chip is MOC3083.
Described power module is converted to by 220V alternating current.
Described power module includes: magnetic core module, rectification module, blood pressure lowering and Voltage stabilizing module, described magnetic core
Module one end is for inputting the power supply of 220V, and the other end is electrically connected with one end of rectification module, described whole
The other end of flow module is electrically connected with blood pressure lowering and Voltage stabilizing module, and described blood pressure lowering and Voltage stabilizing module include the 6th
To the 9th electric capacity and fourth chip, described fourth chip has the 27th to the 29th pin, described
27th pin is electrically connected with one end of the 6th electric capacity, one end of the 7th electric capacity and rectification module respectively,
Described 29th pin is electrically connected with one end of the 8th electric capacity and one end of the 9th electric capacity respectively, described
The other end of the 6th electric capacity, the other end of described 7th electric capacity, the other end of the 8th electric capacity, the 9th electric capacity
The other end and the 28th pin be connected to ground wire, one end of described 9th electric capacity and other end conduct
The outfan of this power module；The model of described fourth chip is ST7812.
The present invention also provides for the control method of a kind of single-phase big electric current combination switch, comprises the following steps:
Step 100, offer one single-phase big electric current combination switch, described single-phase big electric current combination switch includes:
Shell, the socket being located on shell and the circuit structure being located in shell, described circuit structure includes: control
Input control module and described input that signal incoming end and described control signal incoming end are electrically connected with are controlled
The monostable control module of NE555 and the monostable control module of described NE555 that molding block is electrically connected with are electrically connected with
Zero passage output control module and described zero passage output control module be electrically connected with thyristor module and institute
That states thyristor module electric connection connects capacitance terminal and the relay control of described input control module electric connection
Magnetic latching relay that molding block and described relay control module are electrically connected with and keep relay with described magnetic
The major loop incoming end that device is electrically connected with, described thyristor module is also electrically connected with major loop incoming end, institute
State magnetic latching relay also with connect capacitance terminal be electrically connected with, described control signal incoming end, major loop incoming end
And connect capacitance terminal all with socket be electrically connected with；
Step 200, by major loop incoming end connect single-phase live wire, will connect capacitance terminal connection single-phase compensation electric capacity,
And control signal incoming end is connected the outfan of idle compensating control；
Step 300, described idle compensating control output height control level signal is multiple to this single-phase big electric current
The input control module of combination switch, this height control level signal includes high potential signal and electronegative potential letter
Number；
Step 400, this height control level signal transmit to the monostable control of NE555 through input control module
Module, the monostable control module of described NE555 combines relay control module and is turned by this height control level signal
Change control wave into, and be converted to Super-zero control signal according to this height control level signal, and should
Super-zero control signal is sent to zero passage output control module；
Step 500, described relay control module drive magnetic latching relay according to this control wave,
Described zero passage output control module drives thyristor module according to Super-zero control signal, i.e. controls thyristor module
In IGCT turn on when no-voltage, when zero current disconnect, it is achieved the reactive-load compensation to power system.
Described circuit structure also includes: the power module that is electrically connected with described input control module and with described
The power access end that power module is electrically connected with, described power module control mould monostable with NE555 the most respectively
Block and relay control module are electrically connected with, and then provide working power；Described shell uses dust seal
Design, its material is ferrum；Described socket is for sealing aviation socket.
Described input control module includes: the first diode, the first chip, the first audion and first to
Four resistance, described first diode has the first anode and the first negative electrode, described first chip have first to
4th pin, described first audion has the first colelctor electrode, the first base stage and the first emitter stage, and described
One anode is electrically connected to control signal incoming end, and described first negative electrode is electrically connected to the first pin, described
First resistance one end is connected to control signal incoming end, and the other end is electrically connected to the second pin, and the described 3rd
Pin is respectively and electrically connected to one end of the second resistance and one end of the 3rd resistance, and described 4th pin electrically connects
Being connected to power module, the described second resistance other end is electrically connected to the first base stage, described 3rd resistance another
One end is electrically connected to ground wire, and described first colelctor electrode is electrically connected to one end of the 4th resistance, and described first
Emitter stage is electrically connected to ground wire, and the other end of described 4th resistance is electrically connected to power module；Described
One chip is photoelectrical coupler chip, and its model is PC817；The monostable control module of described NE555 includes:
5th to the 6th resistance, the first to the 3rd electric capacity and the second chip, described second chip has the five to ten two
Pin, one end of described 5th resistance is electrically connected to power module, and the other end is respectively and electrically connected to second
One end of electric capacity, the 6th pin and the 7th pin, the other end of described second electric capacity is electrically connected to ground wire,
One end of described first electric capacity and one end of the 6th resistance are electrically connected with the first colelctor electrode and the 4th electricity respectively
One end of resistance, the other end of described first electric capacity is electrically connected to ground wire, the other end electricity of described 6th resistance
Property is connected to the 8th pin, and described 5th pin is electrically connected to power module, and described 9th pin electrically connects
Being connected to power module, described tenth pin is electrically connected to zero passage output control module, described 11st pin
Being electrically connected to ground wire, described 12nd pin is electrically connected to one end of the 3rd electric capacity, described 3rd electric capacity
The other end be electrically connected to ground wire；Described second chip is NE555 chip；Described zero output excessively controls mould
Block include the 7th resistance and the second audion, described second audion have the second colelctor electrode, the second base stage and
Second emitter stage, described 7th resistance one end is electrically connected to the tenth pin, and the other end is electrically connected to second
Base stage, described second colelctor electrode is electrically connected to power module, and described second emitter stage is electrically connected to brilliant lock
Tube module；Described relay control module includes: the 8th to the tenth resistance, the second diode and the three or three pole
Pipe, described second diode has second plate and the second negative electrode, and described 3rd audion has the 3rd current collection
Pole, the 3rd base stage and the 3rd emitter stage, one end of described 8th resistance is respectively and electrically connected to the first electric capacity
One end, one end of the 4th resistance, one end of the 6th resistance and the first colelctor electrode, another of described 8th resistance
End is electrically connected to the 3rd base stage, and one end of described 9th resistance is electrically connected to power module, other end electricity
Property is connected to the 3rd colelctor electrode, and described 3rd emitter stage is electrically connected to ground wire, and described second negative electrode electrically connects
Being connected to the other end and the 8th pin of the 6th resistance, described second plate is electrically connected to the one of the tenth resistance
End, the other end of described tenth resistance is electrically connected to magnetic latching relay；Described magnetic latching relay includes:
3rd diode, the 4th audion, relay and A.C. contactor, described 3rd diode has the 3rd sun
Pole and the 3rd negative electrode, described 4th audion has the 4th colelctor electrode, the 4th base stage and the 4th emitter stage, institute
Stating relay and have the 13rd to the 17th pin, described A.C. contactor has the 18th and draws to the 22nd
Foot, described 3rd negative electrode is electrically connected to power module, and described third anode is respectively and electrically connected to the 14th
Pin and the 4th colelctor electrode, described 4th base stage is electrically connected to the other end of the tenth resistance, described 4th
Emitter-base bandgap grading is electrically connected to ground wire, and described 13rd pin is electrically connected to power module, described 15 pin electricity
Property is connected to power access end, and described 16th pin is electrically connected to the 18th pin, and the described 17th draws
Foot is unsettled, and described 19 pins are electrically connected to power access end, and described 20th pin is used for connecting single-phase
The live wire of alternating current, described 21st pin is electrically connected to connect capacitance terminal, and described 22nd pin hangs
Empty；The model of described A.C. contactor is B170, and it has three main contacts, these three main contact parallel connections
Carrying uses；Described thyristor module includes: the 3rd chip, the 11st to the 14th resistance, the 4th to
Five diodes, the 4th to the 5th electric capacity and the first to the second IGCT, described 3rd chip has the 23rd
To the 26th pin, described 4th diode has the 4th anode and the 4th negative electrode, described 5th diode
Having the 5th anode and the 5th negative electrode, described first IGCT has the first control pole, the 6th anode and the 6th
Negative electrode, described second IGCT has the second control pole, the 7th anode and the 7th negative electrode, and the described 23rd
Pin and the second emitter stage are electrically connected with, and described 24 pins are electrically connected to one end of the 11st resistance,
The other end of described 11st resistance is electrically connected to ground wire, and described 25th pin is electrically connected to the tenth
One end of three resistance, the other end of described 13rd resistance respectively with one end of the 14th resistance, the 5th negative electrode,
One end of 5th electric capacity and second control pole be electrically connected with, the other end of described 14th resistance, the 5th anode,
The other end of the 5th electric capacity and the 7th negative electrode all with connect capacitance terminal be electrically connected with, described 26th pin is electrical
One end, the 4th negative electrode, one end of the 4th electric capacity and first with the 12nd resistance controls the most electrically to connect respectively
Connect, the other end of described 12nd resistance, the 4th anode, the other end of the 4th electric capacity, the 6th negative electrode and
Seven anodes are used to connect the live wire of single-phase alternating current, and described 6th anode is electrically connected with connecing capacitance terminal；Institute
The model stating the 3rd chip is MOC3083.
Described power module is converted to by 220V alternating current.
Described power module includes: magnetic core module, rectification module, blood pressure lowering and Voltage stabilizing module, described Magnetic Core Mould
Block one end is for inputting the power supply of 220V, and the other end is electrically connected with one end of rectification module, described rectification
The other end of module and blood pressure lowering and Voltage stabilizing module are electrically connected with, and described blood pressure lowering and Voltage stabilizing module include the 6th to the
Nine electric capacity and fourth chip, described fourth chip has the 27th to the 29th pin, and the described 20th
Seven pins are electrically connected with one end of the 6th electric capacity, one end of the 7th electric capacity and rectification module respectively, and described the
29 pins are electrically connected with one end of the 8th electric capacity and one end of the 9th electric capacity respectively, described 6th electric capacity
The other end, the other end of described 7th electric capacity, the other end of the 8th electric capacity, the other end of the 9th electric capacity and
28th pin is connected to ground wire, and one end of described 9th electric capacity and the other end are as this power module
Outfan；The model of described fourth chip is ST7812.
Beneficial effects of the present invention: the single-phase big electric current combination switch of the present invention and control method thereof, uses
IGCT connects circuit when no-voltage, and response time is less than 20ms, zero current time-division deenergizing, connects
With breaking course without impact surge current, and fast response time；Ac contactor is turned in turn on thyristors 50ms
The contact of device carries, and without pressure drop, lossless, is also not required to install additional radiator, extends making of combination switch
Use the life-span；This single-phase big electric current combination switch uses dust seal ferrum enclosure designs, is particularly well-suited to dust
The switching at runtime of big electric current list phase compensation capacitor under environment.
In order to be able to be further understood that inventive feature and technology contents, refer to below in connection with the present invention
Detailed description and accompanying drawing, but accompanying drawing only provide with reference to and explanation use, not be used for the present invention is limited
System.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings, by the detailed description of the invention of the present invention is described in detail, the skill of the present invention will be made
Art scheme and other beneficial effect are apparent.
In accompanying drawing,
Fig. 1 is the module composition schematic diagram of the single-phase big electric current combination switch of the present invention；
Fig. 2 is the circuit diagram of the single-phase big electric current combination switch of the present invention；
Fig. 3 is the monostable class circuit form of a kind of NE555 chip in prior art；
Fig. 4 is the input and output ripple figure of Fig. 3 circuit；
Fig. 5 is the monostable class circuit form of another kind of NE555 chip in prior art；
Fig. 6 is the input-output wave shape figure of Fig. 5 circuit；
Fig. 7 is the wiring diagram of reactive power compensating controller and combination switch；
Fig. 8 is " cutting " and the oscillogram of " throwing " exported by the wiring of Fig. 7；
Fig. 9 is the Vi oscillogram that IGCT completes needed for " cutting " action and " throwing " action；
Figure 10 is the input control module in the single-phase big electric current combination switch of the present invention, relay control module
And the monostable control module of NE555 connects circuit diagram；
Figure 11 is the present invention single-phase big electric current combination switch oscillogram when completing " throwing "；
Figure 12 is the present invention single-phase big electric current combination switch oscillogram when completing " cutting "；
Figure 13 is the flow chart of the control method of the single-phase big electric current combination switch of the present invention.
Detailed description of the invention
By further illustrating the technological means and effect thereof that the present invention taked, below in conjunction with the present invention's
Preferred embodiment and accompanying drawing thereof are described in detail.
Referring to Fig. 1 and Fig. 2, the present invention provides a kind of single-phase big electric current combination switch, comprising: shell,
The socket being located on shell and the circuit structure (not shown) being located in shell, described circuit structure includes:
Input control module 42 that control signal incoming end 41 and described control signal incoming end 41 are electrically connected with and
The electricity that the power module 43 of described input control module 42 electric connection and described power module 43 are electrically connected with
The monostable control module of NE555 45 that source incoming end 44 and described input control module 42 are electrically connected with and institute
State zero passage output control module 46 and described zero output control excessively that NE555 monostable control module 45 is electrically connected with
What the thyristor module 47 of molding block 46 electric connection and described thyristor module 47 were electrically connected with connects capacitance terminal
48 and described input control module 42 be electrically connected with relay control module 49 and described Control
Module 49 be electrically connected with magnetic latching relay 50 and with described magnetic latching relay 50 be electrically connected with master return
Road incoming end 51, described thyristor module 47 is also electrically connected with major loop incoming end 51, and described magnetic keeps continuing
Electrical equipment 50 also with connect capacitance terminal 48 and be electrically connected with, described control signal incoming end 41, major loop incoming end 51,
Power access end 44 and connect capacitance terminal 48 all with socket be electrically connected with, described power module 43 the most respectively with
The monostable control module of NE555 45 and relay control module 49 are electrically connected with, and then provide working power.
Described control signal incoming end 41 includes that V end and KA end, described major loop incoming end 51 include exchange
Electricity live wire incoming end L, described power access end 44 includes US end and UN end, for connecting the fire of alternating current
Line and zero line, connect the electrical network of described major loop incoming end 51 and permissible with the electrical network being connected power access end 44
It is different electrical networks, it is also possible to be same electrical network.In the present embodiment, described shell uses dust seal to set
Meter, its material is preferably ferrum, low price；And, described socket uses and seals aviation socket, is conducive to carrying
Rise dust-proof effect, be particularly well-suited under dust environment the switching at runtime of big electric current list phase compensation capacitor.
Concrete annexation and the physical circuit of above-mentioned each module are as follows:
Described input control module 42 includes: the first diode D1, the first chip U1, the first audion Q1
And first to fourth resistance R1, R2, R3, R4, described first diode D1 has the first anode and first
Negative electrode, described first chip U1 has first to fourth pin 1,2,3,4, described first audion Q1
Having the first colelctor electrode C, the first base stage B and the first emitter E, the described first anode is electrically connected to control
Signal incoming end 41, described first negative electrode is electrically connected to the first pin 1, and described first resistance R1 one end is even
Being connected to control signal incoming end 41, the other end is electrically connected to the second pin 2, described 3rd pin 3 electricity respectively
Property is connected to one end of the second resistance R2 and one end of the 3rd resistance R3, and described 4th pin 4 is electrically connected to
Power module 43, the described second resistance R2 other end is electrically connected to the first base stage B, described 3rd resistance R3
The other end be electrically connected to ground wire, described first colelctor electrode C is electrically connected to one end of the 4th resistance R4,
Described first emitter stage C is electrically connected to ground wire, and the other end of described 4th resistance R4 is electrically connected to power supply
Module 43.Described first chip U1 use photoelectrical coupler chip, use photoelectric coupling can well every
From the idle compensating control impact on this grade of circuit, improve capacity of resisting disturbance, meet and use requirement.Described
The concrete model of photoelectrical coupler chip is preferably PC817.
The monostable control module of described NE555 45 includes: the 5th to the 6th resistance R5, R6, first to the 3rd
Electric capacity C1, C2, C3 and the second chip U2, described second chip U2 have the five to ten two pin 5,6,
7,8,9,10,11,12, one end of described 5th resistance R5 is electrically connected to power module 43, another
Hold and be respectively and electrically connected to one end of the second electric capacity C2, the 6th pin 6 and the 7th pin 7, described second
The other end of electric capacity C2 is electrically connected to ground wire, one end and the one of the 6th resistance R6 of described first electric capacity C1
End is electrically connected with the first colelctor electrode C and one end of the 4th resistance R4 respectively, another of described first electric capacity C1
End is electrically connected to ground wire, and the other end of described 6th resistance R6 is electrically connected to the 8th pin 8, and described the
Five pins 5 are electrically connected to power module 43, and described 9th pin 9 is electrically connected to power module 43, described
Tenth pin 10 is electrically connected to zero passage output control module 46, and described 11st pin 11 is electrically connected to ground
Line, described 12nd pin 12 is electrically connected to one end of the 3rd electric capacity C3, and described 3rd electric capacity C3's is another
One end is electrically connected to ground wire.In the present embodiment, described second chip U2 is NE555 chip, this core
Sheet range is wide, can meet demand well, and its inside center circuit is to be added positive and negative by two audion Q
The rest-set flip-flop of feedback composition.Described second electric capacity C2 uses polar capacitor, and its one end is positive pole, another
End is negative pole.
Described zero passage output control module 46 includes the 7th resistance R7 and the second audion Q2, the described 2nd 3
Pole pipe Q2 has the second colelctor electrode C, the second base stage B and the second emitter E, described 7th resistance R7 one end
Being electrically connected to the tenth pin 10, the other end is electrically connected to the second base stage B, described second colelctor electrode B electricity
Property is connected to power module 43, and described second emitter E is electrically connected to thyristor module 47, in conjunction with NE555
Chip realizes Super-zero control.
Described relay control module 49 includes: the 8th to the tenth resistance R8, R9, R10, the second diode
D2 and the 3rd audion Q3, described second diode D2 have second plate and the second negative electrode, and the described 3rd
Audion Q3 has the 3rd colelctor electrode C, the 3rd base stage B and the 3rd emitter E, described 8th resistance R8's
One end is respectively and electrically connected to one end of the first electric capacity C1, one end of the 4th resistance R4, the 6th resistance R6
One end and the first colelctor electrode C, the other end of described 8th resistance R8 is electrically connected to the 3rd base stage B, described
One end of 9th resistance R9 is electrically connected to power module 43, and the other end is electrically connected to the 3rd colelctor electrode C,
Described 3rd emitter E is electrically connected to ground wire, and described second negative electrode is electrically connected to the another of the 6th resistance R6
One end and the 8th pin 8, described second plate is electrically connected to one end of the tenth resistance R10, and the described tenth
The other end of resistance R10 is electrically connected to magnetic latching relay 50.
Described magnetic latching relay 50 includes: the 3rd diode D3, the 4th audion Q4, relay J and friendship
Stream catalyst, described 3rd diode D3 has third anode and the 3rd negative electrode, described 4th audion Q4
Having the 4th colelctor electrode C, the 4th base stage B and the 4th emitter E, described relay J has the 13rd to
17 pins 13,14,15,16,17, described A.C. contactor have the 18th to the 22nd pin 18,
19,20,21,22, described 3rd negative electrode is electrically connected to power module 43, described third anode electricity respectively
Property is connected to the 14th pin 14 and the 4th colelctor electrode C, and described 4th base stage B is electrically connected to the tenth resistance
The other end of R10, the described 4th launches E pole is electrically connected to ground wire, and described 13rd pin 13 electrically connects
Being connected to power module 43, described 15 pins 15 are electrically connected to power access end 44, described 16th pin
16 are electrically connected to the 18th pin 18, and described 17th pin 17 is unsettled, and described 19 pins 19 electrically connect
Be connected to power access end 44, described 20th pin 20 for connecting the live wire of single-phase alternating current, described second
11 pins 21 are electrically connected to connect capacitance terminal 48, and described 22nd pin 22 is unsettled.Described ac contactor
The model of device is B170, although the maximum carrying electric current of present invention design is single phase ac 400A, but, this
Invention is a single-phase combination switch, uses IGCT to connect circuit when no-voltage, and response time is less than
20ms, zero current time-division deenergizing, connects and breaking course is without impact surge current, turn on thyristors 50ms
Inside turn ac contactor contact carrying, there is not the non-concurrent sex chromosome mosaicism of A.C. contactor main contacts disjunction, can
Three main contacts making full use of A.C. contactor B170 are used in parallel, both ensure that safe contact capacity,
Greatly reduce again the volume of A.C. contactor, weight and reduce the price using A.C. contactor, saving raw
Produce cost.
Described thyristor module 47 includes: the 3rd chip U3, the 11st to the 14th resistance R11, R12,
R13, R14, the 4th to the 5th diode D4, D5, the 4th to the 5th electric capacity C4, C5 and the first to the second
IGCT KS1, KS2, described 3rd chip U3 have the 23rd to the 26th pin 23,24,25,
26, described 4th diode D4 have the 4th anode and the 4th negative electrode, and described 5th diode D5 has
Five anodes and the 5th negative electrode, described first IGCT KS1 have the first control pole G1, the 6th anode K1 and
6th negative electrode A1, described second IGCT KS2 have the second control pole G2, the 7th anode K2 and the 7th the moon
Pole A2, described 23rd pin 23 and the second emitter E are electrically connected with, and described 24 pins 24 are electrical
Being connected to one end of the 11st resistance R11, the other end of described 11st resistance R11 is electrically connected to ground wire,
Described 25th pin 25 is electrically connected to one end of the 13rd resistance R13, described 13rd resistance R13
The other end respectively with one end of the 14th resistance R14, the 5th negative electrode, one end and second of the 5th electric capacity C5
Control pole G2 to be electrically connected with, the other end of described 14th resistance R14, the 5th anode, the 5th electric capacity C5
The other end and the 7th negative electrode A2 all with connect capacitance terminal 48 and be electrically connected with, described 26th pin 26 is respectively
Pole G1 is controlled with one end, the 4th negative electrode, one end of the 4th electric capacity C4 and first of the 12nd resistance R12
Be electrically connected with, the other end of described 12nd resistance R12, the 4th anode, the other end of the 4th electric capacity C4,
6th negative electrode A1 and the 7th anode K2 be used to connect single-phase alternating current live wire, described 6th anode K1 with
Connect capacitance terminal 48 to be electrically connected with.Described 3rd chip U3 employing MOC3083 chip, and then promotion first,
Second IGCT KS1, KS2 does operating passing zero action, and this MOC3083 chip is conventional optocoupler,
Capacity of resisting disturbance is strong.Described first, second IGCT KS1, KS2 RC resistance-capacitance absorption mould the most in parallel
Block (such as the 12nd resistance R12, the 4th electric capacity C4 and the 14th resistance R14, the 5th electric capacity C5), with limit
In circuit processed, voltage build-up rate is excessive, it is ensured that first, second IGCT KS1, KS2 works safely.Go out
Momentary surges electric current is born up to 13 times in thyristor module 47 forward, and the thyristor module of this combination switch
The ON time maximum of 47 less than the consideration of 50ms, first, second IGCT KS1 of thyristor module,
KS2 selects the bidirectional thyristor of 160A/1600V, both ensure that the bearing capacity of thyristor module, the most significantly
Decrease the volume of thyristor module 47 and reduce the cost of thyristor module 47.
Described power module 43 is converted to by 220V alternating current.Described power module 43 includes: Magnetic Core Mould
Block, rectification module, blood pressure lowering and Voltage stabilizing module, described magnetic core module one end is electrically connected with power access end 44,
For inputting the alternating current of 220V, the other end is electrically connected with one end of rectification module, described rectification module
The other end and blood pressure lowering and Voltage stabilizing module be electrically connected with.It is 14V that described magnetic core module is used for 220V blood pressure lowering,
Utilize rectification module that alternating current is converted to unidirectional current simultaneously, then through the blood pressure lowering of fourth chip U4 and electric capacity
The voltage stabilizing of device, thus obtain stable 12V unidirectional current, and then supply input control module 42, relay control
The monostable control module of molding block 49, NE555 45 and magnetic latching relay 50 work.Described blood pressure lowering and voltage stabilizing mould
Block includes that the 6th to the 9th electric capacity C6, C7, C8, C9 and fourth chip U4, described fourth chip U4 have
27th to the 29th pin 27,28,29, described 27th pin 27 respectively with the 6th electric capacity
One end of C6, one end of the 7th electric capacity C7 and rectification module are electrically connected with, described 29th pin 29 points
Not being electrically connected with one end of the 8th electric capacity C8 and one end of the 9th electric capacity C9, described 6th electric capacity C6's is another
One end, the other end of described 7th electric capacity C7, the other end of the 8th electric capacity C8, the 9th electric capacity C9 another
End and the 28th pin 28 are connected to ground wire, and one end of described 9th electric capacity C9 and the other end are as this
The outfan of power module 43.The model of described fourth chip U4 is ST7812.Described magnetic core module includes:
Magnetic core, primary coil and secondary coil.Described rectification module is bridge rectifier module, specifically include the 6th to
9th diode D6, D7, D8, D9.
The design of the present invention be further illustrated below:
Referring to Fig. 3, it is the monostable class circuit of existing application NE555 chip, by NE555 chip and
RC device forms, and wherein, Q end output pulse signal controls IGCT.Referring to Fig. 4, it is Fig. 3
The input-output wave shape figure of monostable class circuit, as can be seen from Figure, output waveform VoWith NE555 core
The timing device RC (i.e. resistance R100 and electric capacity C100) of sheet is relevant, output waveform VoPulse width
The relation of Tw with RC is: Tw ≈ 1.1RC.And as can be seen from Figure, when output waveform VoPulse width
When spending narrower, it is likely to result in and control IGCT is caused the problems such as bad, therefore, NE55 chip internal
Cycle of rest-set flip-flop have to be larger than output waveform VoPulse width and RC device in electric capacity C100
The sum of turnaround time, just can ensure that this NE55 chip can control IGCT well.
Please continue to refer to the monostable class circuit that Fig. 5 and Fig. 6, Fig. 5 are existing another kind of NE55 chip, Fig. 6
For input-output wave shape figure corresponding for Fig. 5.This monostable class circuit is on the basis of Fig. 3, defeated at signal Vi
Enter end increase by an electric capacity C300 and in RC device end, increase by a swept resistance Rw.Switch on power after Vcc,
Power Vcc is charged to electric capacity C400 by resistance R200, treats that the voltage Vc on electric capacity C400 rises to
During 2/3Vcc, the rest-set flip-flop in NE555 chip sets to 0, and the Vo i.e. exported is low level, simultaneously electric capacity C400
Discharged by the audion of NE555 chip internal；As the external applied signal voltage Vi triggering end TR
During less than 1/3Vcc, rest-set flip-flop puts 1, and the Vo i.e. exported is high level, meanwhile, and NE555 chip internal
Audion cut-off, power Vcc again by resistance R200 to electric capacity C400 charge.Then Fig. 7 is referred to,
It is the wiring diagram of reactive power compensating controller and combination switch, and K1-K12 represents single-phase combination switch.
The V end of the control signal incoming end of reactive power compensating controller lead-out terminal " V " and combination switch in figure
And connect, the DC voltage of output+12V；Reactive power compensator lead-out terminal " 1 " to " 12 " is with multiple
The KA end correspondence of the control signal incoming end of combination switch connects.Refer to Fig. 8, wherein, work as combination switch
Lead-out terminal on when being in high potential, represent " cutting "；When the lead-out terminal of combination switch is in electronegative potential
Time, represent " throwing ".Because IGCT triggers when " throwing ", therefore described in Fig. 8, waveform intelligence sends
The pulse " thrown ", and " cutting " cannot be realized.Therefore the output of reactive power compensating controller is made by we
Go out waveform definition as shown in Figure 9, with satisfied use requirement.But in order to improve capacity of resisting disturbance, idle merit
The connection of rate compensating controller and combination switch has used photoelectrical coupler, thus can not be integrated, and 50ms
Pulse can reduce the reliability of photoelectrical coupler；It addition, the change of reactive power compensating controller function,
Further relate to the amendment of circuit, description etc., more bother, and increase cost.
For the problems referred to above point, the connection between photoelectrical coupler and NE555 chip is changed by the present invention
Enter so that the rising edge of the waveform shown in Fig. 8 and trailing edge can trigger pulse, so realize " cutting " and
" throw ".
(input control module 42, relay control module 49 and NE555 in Fig. 1 are monostable to refer to Figure 10
Control module 45), utilize a clamp diode D2 (the second diode D2) and the basis of the first electric capacity C1
Body characteristic " will cut " waveform shown in signal transition diagram 9, so " throw " and " cutting " can produce
Starting impulse is the most practical.In conjunction with Fig. 8 and Fig. 9, concrete control process is as follows: when combination switch
KA end transfers low level (" throwing ") to, the current potential of Vi from high to low, the second diode D2 then clamper, Vi
Current potential from low to high, this process is exactly " throwing " pulse；When the KA end of combination switch transfers high level to
(" cutting "), the second diode D2 clamper lost efficacy, and the current potential of the first electric capacity C1 can not suddenly change, and keeps low electricity
Flat, the current potential of Vi from high to low, when on the second electric capacity C2, voltage Vc rises to 2/3Vcc, the current potential of Vi
From low to high, this process is exactly " cutting " pulse.When Figure 11 and Figure 12 is combination switch of the present invention operation
Oscillogram, from Figure 11 and Figure 12 it can be seen that " throwing " and " cutting " does not all have the generation of surge current.
Referring to Fig. 1, Fig. 2 and Figure 13, the present invention also provides for the controlling party of a kind of single-phase big electric current combination switch
Method, it comprises the following steps:
Step 100, offer one single-phase big electric current combination switch, described single-phase big electric current combination switch includes:
Shell, the socket being located on shell and the circuit structure being located in shell, described circuit structure includes: control
The input control module 42 that signal incoming end 41 and described control signal incoming end 41 are electrically connected with is with described
The monostable control module of the NE555 45 and described NE555 monostable control mould that input control module 42 is electrically connected with
The zero passage output control module 46 of block 45 electric connection and described zero passage output control module 46 are electrically connected with
What thyristor module 47 and described thyristor module 47 were electrically connected with connects capacitance terminal 48 and described input control
The magnetic that the relay control module 49 of module 42 electric connection and described relay control module 49 are electrically connected with
Guard relay 50 and the major loop incoming end 51 being electrically connected with described magnetic latching relay 50, described brilliant lock
Tube module 47 is also electrically connected with major loop incoming end 51, described magnetic latching relay 50 also with connect capacitance terminal 48
It is electrically connected with, described control signal incoming end 41, major loop incoming end 51 and to connect capacitance terminal 48 all electric with socket
Property connect.
Described circuit structure also includes: with described input control module 42 be electrically connected with power module 43 and with
The power access end 44 that described power module 43 is electrically connected with, described power access end 44 electrically connects with socket
Connect, described power module 43 control module 45 monostable with NE555 the most respectively and relay control module 49 electricity
Property connect, and then provide working power.
Described control signal incoming end 41 includes that V end and KA end, described major loop incoming end 51 include exchange
Electricity live wire incoming end L, described power access end 44 includes US end and UN end, for connecting the fire of alternating current
Line and zero line, connect the electrical network of described major loop incoming end 51 and permissible with the electrical network being connected power access end 44
It is different electrical networks, it is also possible to be same electrical network.In the present embodiment, described shell uses dust seal to set
Meter, its material is preferably ferrum, low price；And, described socket uses and seals aviation socket, is conducive to carrying
Rise dust-proof effect, be particularly well-suited under dust environment the switching at runtime of big electric current list phase compensation capacitor.
Described input control module 42 includes: the first diode D1, the first chip U1, the first audion Q1
And first to fourth resistance R1, R2, R3, R4, described first diode D1 has the first anode and first
Negative electrode, described first chip U1 has first to fourth pin 1,2,3,4, described first audion Q1
Having the first colelctor electrode C, the first base stage B and the first emitter E, the described first anode is electrically connected to control
Signal incoming end 41, described first negative electrode is electrically connected to the first pin 1, and described first resistance R1 one end is even
Being connected to control signal incoming end 41, the other end is electrically connected to the second pin 2, described 3rd pin 3 electricity respectively
Property is connected to one end of the second resistance R2 and one end of the 3rd resistance R3, and described 4th pin 4 is electrically connected to
Power module 43, the described second resistance R2 other end is electrically connected to the first base stage B, described 3rd resistance R3
The other end be electrically connected to ground wire, described first colelctor electrode C is electrically connected to one end of the 4th resistance R4,
Described first emitter stage C is electrically connected to ground wire, and the other end of described 4th resistance R4 is electrically connected to power supply
Module 43.Described first chip U1 use photoelectrical coupler chip, use photoelectric coupling can well every
From the idle compensating control impact on this grade of circuit, improve capacity of resisting disturbance, meet and use requirement.Described
The concrete model of photoelectrical coupler chip is preferably PC817.
The monostable control module of described NE555 45 includes: the 5th to the 6th resistance R5, R6, first to the 3rd
Electric capacity C1, C2, C3 and the second chip U2, described second chip U2 have the five to ten two pin 5,6,
7,8,9,10,11,12, one end of described 5th resistance R5 is electrically connected to power module 43, another
Hold and be respectively and electrically connected to one end of the second electric capacity C2, the 6th pin 6 and the 7th pin 7, described second
The other end of electric capacity C2 is electrically connected to ground wire, one end and the one of the 6th resistance R6 of described first electric capacity C1
End is electrically connected with the first colelctor electrode C and one end of the 4th resistance R4 respectively, another of described first electric capacity C1
End is electrically connected to ground wire, and the other end of described 6th resistance R6 is electrically connected to the 8th pin 8, and described the
Five pins 5 are electrically connected to power module 43, and described 9th pin 9 is electrically connected to power module 43, described
Tenth pin 10 is electrically connected to zero passage output control module 46, and described 11st pin 11 is electrically connected to ground
Line, described 12nd pin 12 is electrically connected to one end of the 3rd electric capacity C3, and described 3rd electric capacity C3's is another
One end is electrically connected to ground wire.In the present embodiment, described second chip U2 is NE555 chip, this core
Sheet range is wide, can meet demand well, and its inside center circuit is to be added positive and negative by two audion Q
The rest-set flip-flop of feedback composition.Described second electric capacity C2 uses polar capacitor, and its one end is positive pole, another
End is negative pole.
Described zero passage output control module 46 includes the 7th resistance R7 and the second audion Q2, the described 2nd 3
Pole pipe Q2 has the second colelctor electrode C, the second base stage B and the second emitter E, described 7th resistance R7 one end
Being electrically connected to the tenth pin 10, the other end is electrically connected to the second base stage B, described second colelctor electrode B electricity
Property is connected to power module 43, and described second emitter E is electrically connected to thyristor module 47, in conjunction with NE555
Chip realizes Super-zero control.
Described relay control module 49 includes: the 8th to the tenth resistance R8, R9, R10, the second diode
D2 and the 3rd audion Q3, described second diode D2 have second plate and the second negative electrode, and the described 3rd
Audion Q3 has the 3rd colelctor electrode C, the 3rd base stage B and the 3rd emitter E, described 8th resistance R8's
One end is respectively and electrically connected to one end of the first electric capacity C1, one end of the 4th resistance R4, the 6th resistance R6
One end and the first colelctor electrode C, the other end of described 8th resistance R8 is electrically connected to the 3rd base stage B, described
One end of 9th resistance R9 is electrically connected to power module 43, and the other end is electrically connected to the 3rd colelctor electrode C,
Described 3rd emitter E is electrically connected to ground wire, and described second negative electrode is electrically connected to the another of the 6th resistance R6
One end and the 8th pin 8, described second plate is electrically connected to one end of the tenth resistance R10, and the described tenth
The other end of resistance R10 is electrically connected to magnetic latching relay 50.
Described magnetic latching relay 50 includes: the 3rd diode D3, the 4th audion Q4, relay J and friendship
Stream catalyst, described 3rd diode D3 has third anode and the 3rd negative electrode, described 4th audion Q4
Having the 4th colelctor electrode C, the 4th base stage B and the 4th emitter E, described relay J has the 13rd to
17 pins 13,14,15,16,17, described A.C. contactor have the 18th to the 22nd pin 18,
19,20,21,22, described 3rd negative electrode is electrically connected to power module 43, described third anode electricity respectively
Property is connected to the 14th pin 14 and the 4th colelctor electrode C, and described 4th base stage B is electrically connected to the tenth resistance
The other end of R10, the described 4th launches E pole is electrically connected to ground wire, and described 13rd pin 13 electrically connects
Being connected to power module 43, described 15 pins 15 are electrically connected to power access end 44, described 16th pin
16 are electrically connected to the 18th pin 18, and described 17th pin 17 is unsettled, and described 19 pins 19 electrically connect
Be connected to power access end 44, described 20th pin 20 for connecting the live wire of single-phase alternating current, described second
11 pins 21 are electrically connected to connect capacitance terminal 48, and described 22nd pin 22 is unsettled.Described ac contactor
The model of device is B170, although the maximum carrying electric current of present invention design is single phase ac 400A, but, this
Invention is a single-phase combination switch, uses IGCT to connect circuit when no-voltage, and response time is less than
20ms, zero current time-division deenergizing, connects and breaking course is without impact surge current, turn on thyristors 50ms
Inside turn ac contactor contact carrying, there is not the non-concurrent sex chromosome mosaicism of A.C. contactor main contacts disjunction, can
Three main contacts making full use of A.C. contactor B170 are used in parallel, both ensure that safe contact capacity,
Greatly reduce again the volume of A.C. contactor, weight and reduce the price using A.C. contactor, saving raw
Produce cost.
Described thyristor module 47 includes: the 3rd chip U3, the 11st to the 14th resistance R11, R12,
R13, R14, the 4th to the 5th diode D4, D5, the 4th to the 5th electric capacity C4, C5 and the first to the second
IGCT KS1, KS2, described 3rd chip U3 have the 23rd to the 26th pin 23,24,25,
26, described 4th diode D4 have the 4th anode and the 4th negative electrode, and described 5th diode D5 has
Five anodes and the 5th negative electrode, described first IGCT KS1 have the first control pole G1, the 6th anode K1 and
6th negative electrode A1, described second IGCT KS2 have the second control pole G2, the 7th anode K2 and the 7th the moon
Pole A2, described 23rd pin 23 and the second emitter E are electrically connected with, and described 24 pins 24 are electrical
Being connected to one end of the 11st resistance R11, the other end of described 11st resistance R11 is electrically connected to ground wire,
Described 25th pin 25 is electrically connected to one end of the 13rd resistance R13, described 13rd resistance R13
The other end respectively with one end of the 14th resistance R14, the 5th negative electrode, one end and second of the 5th electric capacity C5
Control pole G2 to be electrically connected with, the other end of described 14th resistance R14, the 5th anode, the 5th electric capacity C5
The other end and the 7th negative electrode A2 all with connect capacitance terminal 48 and be electrically connected with, described 26th pin 26 is respectively
Pole G1 is controlled with one end, the 4th negative electrode, one end of the 4th electric capacity C4 and first of the 12nd resistance R12
Be electrically connected with, the other end of described 12nd resistance R12, the 4th anode, the other end of the 4th electric capacity C4,
6th negative electrode A1 and the 7th anode K2 be used to connect single-phase alternating current live wire, described 6th anode K1 with
Connect capacitance terminal 48 to be electrically connected with.Described 3rd chip U3 employing MOC3083 chip, and then promotion first,
Second IGCT KS1, KS2 does operating passing zero action, and this MOC3083 chip is conventional optocoupler,
Capacity of resisting disturbance is strong.Described first, second IGCT KS1, KS2 RC resistance-capacitance absorption mould the most in parallel
Block (such as the 12nd resistance R12, the 4th electric capacity C4 and the 14th resistance R14, the 5th electric capacity C5), with limit
In circuit processed, voltage build-up rate is excessive, it is ensured that first, second IGCT KS1, KS2 works safely.Go out
Momentary surges electric current is born up to 13 times in thyristor module 47 forward, and the thyristor module of this combination switch
The ON time maximum of 47 less than the consideration of 50ms, first, second IGCT KS1 of thyristor module,
KS2 selects the bidirectional thyristor of 160A/1600V, both ensure that the bearing capacity of thyristor module, the most significantly
Decrease the volume of thyristor module 47 and reduce the cost of thyristor module 47.
Described power module 43 is converted to by 220V alternating current.Described power module 43 includes: Magnetic Core Mould
Block, rectification module, blood pressure lowering and Voltage stabilizing module, described magnetic core module one end is electrically connected with power access end 44,
For inputting the alternating current of 220V, the other end is electrically connected with one end of rectification module, described rectification module
The other end and blood pressure lowering and Voltage stabilizing module be electrically connected with.It is 14V that described magnetic core module is used for 220V blood pressure lowering,
Utilize rectification module that alternating current is converted to unidirectional current simultaneously, then through the blood pressure lowering of fourth chip U4 and electric capacity
The voltage stabilizing of device, thus obtain stable 12V unidirectional current, and then supply input control module 42, relay control
The monostable control module of molding block 49, NE555 45 and magnetic latching relay 50 work.Described blood pressure lowering and voltage stabilizing mould
Block includes that the 6th to the 9th electric capacity C6, C7, C8, C9 and fourth chip U4, described fourth chip U4 have
27th to the 29th pin 27,28,29, described 27th pin 27 respectively with the 6th electric capacity
One end of C6, one end of the 7th electric capacity C7 and rectification module are electrically connected with, described 29th pin 29 points
Not being electrically connected with one end of the 8th electric capacity C8 and one end of the 9th electric capacity C9, described 6th electric capacity C6's is another
One end, the other end of described 7th electric capacity C7, the other end of the 8th electric capacity C8, the 9th electric capacity C9 another
End and the 28th pin 28 are connected to ground wire, and one end of described 9th electric capacity C9 and the other end are as this
The outfan of power module 43.The model of described fourth chip U4 is ST7812.Described magnetic core module includes:
Magnetic core, primary coil and secondary coil.Described rectification module is bridge rectifier module, specifically include the 6th to
9th diode D6, D7, D8, D9.
Step 200, major loop incoming end 51 is connected single-phase live wire, capacitance terminal 48 will be connect and connect single-phase compensation
Electric capacity, and control signal incoming end 41 is connected the outfan of idle compensating control.
Meanwhile, the US end of described power access end 44 and UN end are connected live wire and the zero line of alternating current, profit
Carry out step-down rectifier with power module 43, and then power supply is provided.The live wire of the alternating current at this and above-mentioned list
Phase firewire can come from same electrical network, it is also possible to comes from different electrical networks.
Step 300, described idle compensating control output height control level signal is multiple to this single-phase big electric current
The input control module 42 of combination switch, this height control level signal includes high potential signal and electronegative potential letter
Number.
In this height control level signal, high potential signal represents to be cut, and low-potential signal represents throwing.In this place
Utilizing the first chip U1 (photoelectrical coupler chip PC817) to carry out sensing, capacity of resisting disturbance is strong.
Step 400, this height control level signal transmit to the monostable control of NE555 through input control module 42
Molding block 45, the monostable control module of described NE555 45 combines relay control module 49 and this height is controlled electricity
Ordinary mail number is converted into control wave, and is converted to Super-zero control letter according to this height control level signal
Number, and this Super-zero control signal is sent to zero passage output control module 46.
Refer to Figure 10, utilize a clamp diode D2's (the second diode D2) and the first electric capacity C1
Self character " will cut " waveform shown in signal transition diagram 9, so " throw " and " cutting " can produce
Raw starting impulse is the most practical.In conjunction with Fig. 8 and Fig. 9, concrete control process is as follows: when combination switch
KA end transfers low level (" throwing ") to, the current potential of Vi from high to low, the second diode D2 then clamper, Vi
Current potential from low to high, this process is exactly " throwing " pulse；When the KA end of combination switch transfers high level to
(" cutting "), the second diode D2 clamper lost efficacy, and the current potential of the first electric capacity C1 can not suddenly change, and kept low level,
The current potential of Vi from high to low, when on the second electric capacity C2, voltage Vc rises to 2/3Vcc, the current potential of Vi by low to
Height, this process is exactly " cutting " pulse.
Step 500, described relay control module 49 drive magnetic latching relay according to this control wave
50, described zero passage output control module 46 drives thyristor module 47 according to Super-zero control signal, i.e. controls crystalline substance
IGCT in brake tube module 47 turns on when no-voltage, disconnects when zero current, it is achieved to power system
Reactive-load compensation.
In the present embodiment, described thyristor module 47 uses conventional optocoupler MOC3083 chip to connect
The collection of letters number, and promote first, second IGCT KS1, KS2's to do operating passing zero action, capacity of resisting disturbance
By force.
Figure 11 and Figure 12 is the oscillogram of the control method of combination switch of the present invention, permissible from Figure 11 and Figure 12
Finding out, " throwing " and " cutting " does not all have the generation of surge current.
In sum, the single-phase big electric current combination switch of the present invention and control method thereof, use IGCT to exist
Connecting circuit during no-voltage, response time is less than 20ms, zero current time-division deenergizing, connects and disjunction
Journey is without impact surge current, and fast response time；The contact of A.C. contactor is turned in turn on thyristors 50ms
Carry, without pressure drop, lossless, be also not required to install additional radiator, extend the service life of combination switch；
This single-phase big electric current combination switch uses dust seal ferrum enclosure designs, is particularly well-suited under dust environment big
The switching at runtime of electric current list phase compensation capacitor.
The above, for the person of ordinary skill of the art, can be according to the technical side of the present invention
Other various corresponding changes and deformation are made in case and technology design, and all these change and deformation are all answered
Belong to the protection domain of the claims in the present invention.
Claims (8)
- null1. a single-phase big electric current combination switch，It is characterized in that，Including: shell、The socket being located on shell and the circuit structure being located in shell，Described circuit structure includes: control signal incoming end、The input control module being electrically connected with described control signal incoming end、The power module being electrically connected with described input control module、The power access end being electrically connected with described power module、Control module monostable with the NE555 that described input control module is electrically connected with、The zero passage output control module that control module monostable with described NE555 is electrically connected with、The thyristor module being electrically connected with described zero passage output control module、Capacitance terminal is connect with described thyristor module is electrically connected with、The relay control module being electrically connected with described input control module、The magnetic latching relay being electrically connected with described relay control module and the major loop incoming end being electrically connected with described magnetic latching relay，Described thyristor module is also electrically connected with major loop incoming end，Described magnetic latching relay also with connect capacitance terminal be electrically connected with，Described control signal incoming end、Major loop incoming end、Power access end and connect capacitance terminal all with socket be electrically connected with，Described power module control module monostable with NE555 the most respectively、And relay control module is electrically connected with；nullDescribed input control module includes: the first diode、First chip、First audion and first to fourth resistance，Described first diode has the first anode and the first negative electrode，Described first chip has first to fourth pin，Described first audion has the first colelctor electrode、First base stage and the first emitter stage，The described first anode is electrically connected to control signal incoming end，Described first negative electrode is electrically connected to the first pin，Described first resistance one end is connected to control signal incoming end，The other end is electrically connected to the second pin，Described 3rd pin is respectively and electrically connected to one end of the second resistance and one end of the 3rd resistance，Described 4th pin is electrically connected to power module，The described second resistance other end is electrically connected to the first base stage，The other end of described 3rd resistance is electrically connected to ground wire，Described first colelctor electrode is electrically connected to one end of the 4th resistance，Described first emitter stage is electrically connected to ground wire，The other end of described 4th resistance is electrically connected to power module；Described first chip is photoelectrical coupler chip, and its model is PC817；nullThe monostable control module of described NE555 includes: the 5th to the 6th resistance、First to the 3rd electric capacity and the second chip，Described second chip has the five to ten two pin，One end of described 5th resistance is electrically connected to power module，The other end is respectively and electrically connected to one end of the second electric capacity、6th pin、And the 7th pin，The other end of described second electric capacity is electrically connected to ground wire，One end of described first electric capacity and one end of the 6th resistance are electrically connected with the first colelctor electrode and one end of the 4th resistance respectively，The other end of described first electric capacity is electrically connected to ground wire，The other end of described 6th resistance is electrically connected to the 8th pin，Described 5th pin is electrically connected to power module，Described 9th pin is electrically connected to power module，Described tenth pin is electrically connected to zero passage output control module，Described 11st pin is electrically connected to ground wire，Described 12nd pin is electrically connected to one end of the 3rd electric capacity，The other end of described 3rd electric capacity is electrically connected to ground wire；Described second chip is NE555 chip；Described zero passage output control module includes the 7th resistance and the second audion, described second audion has the second colelctor electrode, the second base stage and the second emitter stage, described 7th resistance one end is electrically connected to the tenth pin, the other end is electrically connected to the second base stage, described second colelctor electrode is electrically connected to power module, and described second emitter stage is electrically connected to thyristor module；Described relay control module includes: the 8th to the tenth resistance, second diode and the 3rd audion, described second diode has second plate and the second negative electrode, described 3rd audion has the 3rd colelctor electrode, 3rd base stage and the 3rd emitter stage, one end of described 8th resistance is respectively and electrically connected to one end of the first electric capacity, one end of 4th resistance, one end of 6th resistance and the first colelctor electrode, the other end of described 8th resistance is electrically connected to the 3rd base stage, one end of described 9th resistance is electrically connected to power module, the other end is electrically connected to the 3rd colelctor electrode, described 3rd emitter stage is electrically connected to ground wire, described second negative electrode is electrically connected to the other end and the 8th pin of the 6th resistance, described second plate is electrically connected to one end of the tenth resistance, the other end of described tenth resistance is electrically connected to magnetic latching relay；nullDescribed magnetic latching relay includes: the 3rd diode、4th audion、Relay and A.C. contactor，Described 3rd diode has third anode and the 3rd negative electrode，Described 4th audion has the 4th colelctor electrode、4th base stage and the 4th emitter stage，Described relay has the 13rd to the 17th pin，Described A.C. contactor has the 18th to the 22nd pin，Described 3rd negative electrode is electrically connected to power module，Described third anode is respectively and electrically connected to the 14th pin and the 4th colelctor electrode，Described 4th base stage is electrically connected to the other end of the tenth resistance，Described 4th emitter stage is electrically connected to ground wire，Described 13rd pin is electrically connected to power module，Described 15 pins are electrically connected to power access end，Described 16th pin is electrically connected to the 18th pin，Described 17th pin is unsettled，Described 19 pins are electrically connected to power access end，Described 20th pin is for connecting the live wire of single-phase alternating current，Described 21st pin is electrically connected to connect capacitance terminal，Described 22nd pin is unsettled；The model of described A.C. contactor is B170, and it has three main contacts, and these three main contact parallel connection carryings use；nullDescribed thyristor module includes: the 3rd chip、11st to the 14th resistance、4th to the 5th diode、4th to the 5th electric capacity and the first to the second IGCT，Described 3rd chip has the 23rd to the 26th pin，Described 4th diode has the 4th anode and the 4th negative electrode，Described 5th diode has the 5th anode and the 5th negative electrode，Described first IGCT has the first control pole、6th anode and the 6th negative electrode，Described second IGCT has the second control pole、7th anode and the 7th negative electrode，Described 23rd pin and the second emitter stage are electrically connected with，Described 24 pins are electrically connected to one end of the 11st resistance，The other end of described 11st resistance is electrically connected to ground wire，Described 25th pin is electrically connected to one end of the 13rd resistance，The other end of described 13rd resistance respectively with one end of the 14th resistance、5th negative electrode、One end of 5th electric capacity and second controls pole and is electrically connected with，The other end of described 14th resistance、5th anode、The other end of the 5th electric capacity and the 7th negative electrode all with connect capacitance terminal be electrically connected with，Described 26th pin electrically the most respectively with one end of the 12nd resistance、4th negative electrode、One end of 4th electric capacity、And first control pole be electrically connected with，The other end of described 12nd resistance、4th anode、The other end of the 4th electric capacity、6th negative electrode and the 7th anode are used to connect the live wire of single-phase alternating current，Described 6th anode is electrically connected with connecing capacitance terminal；The model of described 3rd chip is MOC3083.
- Single-phase big electric current combination switch the most as claimed in claim 1, it is characterised in that described shell uses dust seal design, and its material is ferrum；Described socket is for sealing aviation socket.
- Single-phase big electric current combination switch the most as claimed in claim 1, it is characterised in that described power module is converted to by 220V alternating current.
- nullSingle-phase big electric current combination switch the most as claimed in claim 3，It is characterized in that，Described power module includes: magnetic core module、Rectification module、Blood pressure lowering and Voltage stabilizing module，Described magnetic core module one end is for inputting the power supply of 220V，The other end is electrically connected with one end of rectification module，The other end of described rectification module is electrically connected with blood pressure lowering and Voltage stabilizing module，Described blood pressure lowering and Voltage stabilizing module include the 6th to the 9th electric capacity and fourth chip，Described fourth chip has the 27th to the 29th pin，Described 27th pin respectively with one end of the 6th electric capacity、One end of 7th electric capacity and rectification module are electrically connected with，Described 29th pin is electrically connected with one end of the 8th electric capacity and one end of the 9th electric capacity respectively，The other end of described 6th electric capacity、The other end of described 7th electric capacity、The other end of the 8th electric capacity、The other end and the 28th pin of the 9th electric capacity are connected to ground wire，One end of described 9th electric capacity and the other end are as the outfan of this power module；The model of described fourth chip is ST7812.
- 5. the control method of a single-phase big electric current combination switch, it is characterised in that comprise the following steps:nullStep 100、One single-phase big electric current combination switch is provided，Described single-phase big electric current combination switch includes: shell、The socket being located on shell and the circuit structure being located in shell，Described circuit structure includes: control signal incoming end、The input control module being electrically connected with described control signal incoming end、Control module monostable with the NE555 that described input control module is electrically connected with、The zero passage output control module that control module monostable with described NE555 is electrically connected with、The thyristor module being electrically connected with described zero passage output control module、Capacitance terminal is connect with described thyristor module is electrically connected with、The relay control module being electrically connected with described input control module、The magnetic latching relay being electrically connected with described relay control module and the major loop incoming end being electrically connected with described magnetic latching relay，Described thyristor module is also electrically connected with major loop incoming end，Described magnetic latching relay also with connect capacitance terminal be electrically connected with，Described control signal incoming end、Major loop incoming end and connect capacitance terminal all with socket be electrically connected with；Step 200, by major loop incoming end connect single-phase live wire, will connect capacitance terminal connect single-phase compensation electric capacity, and by control signal incoming end connection idle compensating control outfan；Step 300, described idle compensating control output height control level signal is to the input control module of this single-phase big electric current combination switch, and this height control level signal includes high potential signal and low-potential signal；Step 400, this height control level signal transmit to the monostable control module of NE555 through input control module, the monostable control module of described NE555 combines relay control module and this height control level signal is converted into control wave, and be converted to Super-zero control signal according to this height control level signal, and this Super-zero control signal is sent to zero passage output control module；Step 500, described relay control module drive magnetic latching relay according to this control wave, described zero passage output control module drives thyristor module according to Super-zero control signal, the IGCT i.e. controlled in thyristor module turns on when no-voltage, disconnect when zero current, it is achieved the reactive-load compensation to power system；nullDescribed input control module includes: the first diode、First chip、First audion and first to fourth resistance，Described first diode has the first anode and the first negative electrode，Described first chip has first to fourth pin，Described first audion has the first colelctor electrode、First base stage and the first emitter stage，The described first anode is electrically connected to control signal incoming end，Described first negative electrode is electrically connected to the first pin，Described first resistance one end is connected to control signal incoming end，The other end is electrically connected to the second pin，Described 3rd pin is respectively and electrically connected to one end of the second resistance and one end of the 3rd resistance，Described 4th pin is electrically connected to power module，The described second resistance other end is electrically connected to the first base stage，The other end of described 3rd resistance is electrically connected to ground wire，Described first colelctor electrode is electrically connected to one end of the 4th resistance，Described first emitter stage is electrically connected to ground wire，The other end of described 4th resistance is electrically connected to power module；Described first chip is photoelectrical coupler chip, and its model is PC817；nullThe monostable control module of described NE555 includes: the 5th to the 6th resistance、First to the 3rd electric capacity and the second chip，Described second chip has the five to ten two pin，One end of described 5th resistance is electrically connected to power module，The other end is respectively and electrically connected to one end of the second electric capacity、6th pin、And the 7th pin，The other end of described second electric capacity is electrically connected to ground wire，One end of described first electric capacity and one end of the 6th resistance are electrically connected with the first colelctor electrode and one end of the 4th resistance respectively，The other end of described first electric capacity is electrically connected to ground wire，The other end of described 6th resistance is electrically connected to the 8th pin，Described 5th pin is electrically connected to power module，Described 9th pin is electrically connected to power module，Described tenth pin is electrically connected to zero passage output control module，Described 11st pin is electrically connected to ground wire，Described 12nd pin is electrically connected to one end of the 3rd electric capacity，The other end of described 3rd electric capacity is electrically connected to ground wire；Described second chip is NE555 chip；Described zero passage output control module includes the 7th resistance and the second audion, described second audion has the second colelctor electrode, the second base stage and the second emitter stage, described 7th resistance one end is electrically connected to the tenth pin, the other end is electrically connected to the second base stage, described second colelctor electrode is electrically connected to power module, and described second emitter stage is electrically connected to thyristor module；Described relay control module includes: the 8th to the tenth resistance, second diode and the 3rd audion, described second diode has second plate and the second negative electrode, described 3rd audion has the 3rd colelctor electrode, 3rd base stage and the 3rd emitter stage, one end of described 8th resistance is respectively and electrically connected to one end of the first electric capacity, one end of 4th resistance, one end of 6th resistance and the first colelctor electrode, the other end of described 8th resistance is electrically connected to the 3rd base stage, one end of described 9th resistance is electrically connected to power module, the other end is electrically connected to the 3rd colelctor electrode, described 3rd emitter stage is electrically connected to ground wire, described second negative electrode is electrically connected to the other end and the 8th pin of the 6th resistance, described second plate is electrically connected to one end of the tenth resistance, the other end of described tenth resistance is electrically connected to magnetic latching relay；nullDescribed magnetic latching relay includes: the 3rd diode、4th audion、Relay and A.C. contactor，Described 3rd diode has third anode and the 3rd negative electrode，Described 4th audion has the 4th colelctor electrode、4th base stage and the 4th emitter stage，Described relay has the 13rd to the 17th pin，Described A.C. contactor has the 18th to the 22nd pin，Described 3rd negative electrode is electrically connected to power module，Described third anode is respectively and electrically connected to the 14th pin and the 4th colelctor electrode，Described 4th base stage is electrically connected to the other end of the tenth resistance，Described 4th emitter stage is electrically connected to ground wire，Described 13rd pin is electrically connected to power module，Described 15 pins are electrically connected to power access end，Described 16th pin is electrically connected to the 18th pin，Described 17th pin is unsettled，Described 19 pins are electrically connected to power access end，Described 20th pin is for connecting the live wire of single-phase alternating current，Described 21st pin is electrically connected to connect capacitance terminal，Described 22nd pin is unsettled；The model of described A.C. contactor is B170, and it has three main contacts, and these three main contact parallel connection carryings use；nullDescribed thyristor module includes: the 3rd chip、11st to the 14th resistance、4th to the 5th diode、4th to the 5th electric capacity and the first to the second IGCT，Described 3rd chip has the 23rd to the 26th pin，Described 4th diode has the 4th anode and the 4th negative electrode，Described 5th diode has the 5th anode and the 5th negative electrode，Described first IGCT has the first control pole、6th anode and the 6th negative electrode，Described second IGCT has the second control pole、7th anode and the 7th negative electrode，Described 23rd pin and the second emitter stage are electrically connected with，Described 24 pins are electrically connected to one end of the 11st resistance，The other end of described 11st resistance is electrically connected to ground wire，Described 25th pin is electrically connected to one end of the 13rd resistance，The other end of described 13rd resistance respectively with one end of the 14th resistance、5th negative electrode、One end of 5th electric capacity and second controls pole and is electrically connected with，The other end of described 14th resistance、5th anode、The other end of the 5th electric capacity and the 7th negative electrode all with connect capacitance terminal be electrically connected with，Described 26th pin electrically the most respectively with one end of the 12nd resistance、4th negative electrode、One end of 4th electric capacity、And first control pole be electrically connected with，The other end of described 12nd resistance、4th anode、The other end of the 4th electric capacity、6th negative electrode and the 7th anode are used to connect the live wire of single-phase alternating current，Described 6th anode is electrically connected with connecing capacitance terminal；The model of described 3rd chip is MOC3083.
- The control method of single-phase big electric current combination switch the most as claimed in claim 5, it is characterized in that, described circuit structure also includes: the power module being electrically connected with described input control module and the power access end being electrically connected with described power module, described power module control module monostable with NE555 the most respectively and relay control module are electrically connected with, and then provide working power；Described shell uses dust seal design, and its material is ferrum；Described socket is for sealing aviation socket.
- The control method of single-phase big electric current combination switch the most as claimed in claim 6, it is characterised in that described power module is converted to by 220V alternating current.
- nullThe control method of single-phase big electric current combination switch the most as claimed in claim 6，It is characterized in that，Described power module includes: magnetic core module、Rectification module、Blood pressure lowering and Voltage stabilizing module，Described magnetic core module one end is for inputting the power supply of 220V，The other end is electrically connected with one end of rectification module，The other end of described rectification module is electrically connected with blood pressure lowering and Voltage stabilizing module，Described blood pressure lowering and Voltage stabilizing module include the 6th to the 9th electric capacity and fourth chip，Described fourth chip has the 27th to the 29th pin，Described 27th pin respectively with one end of the 6th electric capacity、One end of 7th electric capacity and rectification module are electrically connected with，Described 29th pin is electrically connected with one end of the 8th electric capacity and one end of the 9th electric capacity respectively，The other end of described 6th electric capacity、The other end of described 7th electric capacity、The other end of the 8th electric capacity、The other end and the 28th pin of the 9th electric capacity are connected to ground wire，One end of described 9th electric capacity and the other end are as the outfan of this power module；The model of described fourth chip is ST7812.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310376977.9A CN104426150B (en) | 2013-08-26 | Single-phase big electric current combination switch and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310376977.9A CN104426150B (en) | 2013-08-26 | Single-phase big electric current combination switch and control method thereof |
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| CN104426150A CN104426150A (en) | 2015-03-18 |
| CN104426150B true CN104426150B (en) | 2016-11-30 |
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| JPH09191576A (en) * | 1996-01-09 | 1997-07-22 | Hitachi Ltd | Device for compensating for voltage fluctuation of power supply |
| CN1466160A (en) * | 2002-06-20 | 2004-01-07 | 北海市深蓝科技发展有限责任公司 | Low-voltage composite switch |
| CN2678115Y (en) * | 2004-02-17 | 2005-02-09 | 齐齐哈尔齐力达电子有限公司 | Compound power electronic switch |
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