CN108183536A - Percussion welder control method and its device - Google Patents
Percussion welder control method and its device Download PDFInfo
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- CN108183536A CN108183536A CN201711488978.7A CN201711488978A CN108183536A CN 108183536 A CN108183536 A CN 108183536A CN 201711488978 A CN201711488978 A CN 201711488978A CN 108183536 A CN108183536 A CN 108183536A
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- 238000009527 percussion Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000001514 detection method Methods 0.000 claims abstract description 56
- 238000003466 welding Methods 0.000 claims abstract description 26
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 27
- 229910052710 silicon Inorganic materials 0.000 claims description 27
- 239000010703 silicon Substances 0.000 claims description 27
- 238000006243 chemical reaction Methods 0.000 claims description 19
- 230000003068 static effect Effects 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 7
- 238000004146 energy storage Methods 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000004891 communication Methods 0.000 description 5
- 230000003993 interaction Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H02J7/022—
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- H02J7/045—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
- H02J7/06—Regulation of charging current or voltage using discharge tubes or semiconductor devices
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- H02J2007/10—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
Abstract
Percussion welder control method provided by the invention and its device, are related to welding machine technical field.The percussion welder control method includes the following steps：Percussion welder starts, and step-up transformer is by three-phase alternating current electric boost；The triggering of three phase full bridge rectification module starts, and is direct current by the three-phase alternating current electric rectification after boosting；Energy capacitance set charges, and the direct current after rectification charges to energy capacitance set；The charging voltage of detection energy capacitance set in real time, when charging voltage reaches preset voltage value, three phase full bridge rectification module is switched to single-phase rectifier pattern.The percussion welder control method charging current is steady, and charge efficiency is high, can effectively improve the stability of welding machine.Percussion welder control device provided by the invention, charging current is steady, and charge efficiency is high, and advantage of lower cost.
Description
Technical field
The present invention relates to welding machine technical field, in particular to a kind of percussion welder control method and its device.
Background technology
In the prior art, it is formed using PLC, three-phase intelligent charging module, voltage detecting plate, current detecting plate, by touching
Screen setting welding voltage value is touched, what then PLC was calculated goes out the required analog voltage value of three-phase intelligent module, by voltage output
Silicon-controlled shutdown of opening is controlled to realize to capacitor charging to three-phase intelligent charging module.PLC provides charging signals to three-phase mould
The real-time voltage on capacitance is constantly detected while block, 10ms feedback primary voltages according to feedback voltage level as a result, control mould
Analog quantity voltage value is so as to adjust charging current and speed.
For this mode using PLC as master controller, the scan period is long, can not accomplish that each half-wave accurately controls three-phase whole
The silicon-controlled angle of flow is flowed, control accuracy is not high, and this mode is very big to the net capacity requirement of power grid, and the charging time also can
It is very long.
Invention content
The purpose of the present invention is to provide a kind of percussion welder control methods, can accurately calculate and control output accurate
Thyristor trigger angle, treatment effeciency are high.Meanwhile when the voltage of energy capacitance set will be filled with, three phase full bridge rectification mould
Block uses single-phase rectifier technology, reduces the charging current of energy capacitance set, makes voltage control more accurate.The percussion welder controls
Method charge efficiency is high, and the charging time is short, applied widely.
The present invention also aims to provide a kind of percussion welder control device, integration improves original three-phase intelligent charging
The control section of module, three-phase alternating current synchronizing signal are directly inputted to DSP master control borads, then defeated after algorithm by DSP master control borads
Go out accurate thyristor trigger angle, three phase full bridge rectification module is triggered by three-phase controllable silicon trigger board, so as to make energy storage
The charging current of capacitance group is more steady, shortens the charging time, charging voltage is more accurate, and system stability is more preferable.
The present invention, which improves its technical problem, to be realized using following technical solution.
A kind of percussion welder control method provided by the invention, includes the following steps：
Boosting；Percussion welder starts, and step-up transformer is by three-phase alternating current electric boost.
The triggering of three phase full bridge rectification module starts, and is direct current by the three-phase alternating current electric rectification after boosting.
Energy capacitance set charges, and boosts and the direct current after rectification charges to the energy capacitance set.
The charging voltage of the energy capacitance set is detected in real time, when the charging voltage reaches preset voltage value, described three
Phase full-bridge rectification module is switched to single-phase rectifier pattern.
Further, the three phase full bridge rectification module is started or stoped by the control of three-phase controllable silicon trigger board.
Further, it is controlled using DSP master control borads, the DSP master control borads connect with the three-phase controllable silicon trigger board
It connects；Three-phase alternating current synchronizing signal is directly inputted to the DSP master control borads, then is calculated analytically by the DSP master control borads rear defeated
Go out thyristor trigger angle.
Further, the three phase full bridge rectification module uses three-phase full-wave triggering technique, and the DSP master control borads are directly defeated
Go out three-phase full-wave trigger signal, the three phase full bridge rectification module is controlled to charge.
Further, the scan period of the DSP master control borads is 1ms.
Further, the DSP master control borads are integrated with secondary current detection circuit and three-phase zero cross detection circuit, Neng Goushi
Occurrence grade current detecting and three-phase zero passage detection.
Further, in the energy capacitance set charge step, the DSP master control borads use constant current control algorithm, realize
To the constant-current charge of the energy capacitance set.
Further, in the charging voltage step for detecting the energy capacitance set in real time, using voltage detection module
Detection in real time, the voltage detection module include at least one voltage sensor, and the voltage sensor detects the energy storage electricity
The voltage of appearance group.
Further, the DSP master control borads are integrated with Proportion valve controlling circuit module and capacitance voltage voltage-frequency conversion circuit,
Using the static pressure pressure of Proportion valve controlling circuit module control welding machine, controlled using the capacitance voltage voltage-frequency conversion circuit
The charging voltage of the welding machine.
A kind of percussion welder control device provided by the invention, including DSP master control borads, three-phase controllable silicon trigger board, three-phase
Full-bridge rectification module, step-up transformer, energy capacitance set, voltage detection module and welding transformer.
The DSP master control borads become respectively with the three-phase controllable silicon trigger board, the voltage detection module and the welding
Depressor connects, and the three phase full bridge rectification module is connect respectively with the step-up transformer, the three-phase controllable silicon trigger board, institute
Energy capacitance set is stated to connect with the welding transformer, the voltage detection module respectively.
The DSP master control borads include dsp chip, secondary current detection circuit, capacitance voltage voltage-frequency conversion circuit and ratio
Valve controling circuit module.The dsp chip respectively with the secondary current detection circuit, the capacitance voltage voltage-frequency conversion circuit
It is connected with the Proportion valve controlling circuit module, the dsp chip sends out control instruction according to the acquisition signal of reception, described secondary
Grade current detection circuit is used for for real-time sensed current signal, the capacitance voltage voltage-frequency conversion circuit by capacitance voltage signal
The corresponding frequency signal of voltage is converted into, the Proportion valve controlling circuit module is used to control the static pressure pressure of the welding machine.
The three-phase controllable silicon trigger board triggers the three phase full bridge rectification mould under the control instruction of the DSP master control borads
Block, for the step-up transformer by three-phase alternating current electric boost, the three phase full bridge rectification module is whole by the three-phase alternating current after boosting
It flows for direct current, the direct current is used to charge for the energy capacitance set, and the voltage detection module detects the storage in real time
The voltage of energy capacitance group, when the voltage reaches predeterminated voltage, the three phase full bridge rectification module is switched to single-phase rectifier work
Pattern reduces the charging current of the energy capacitance set.
Percussion welder control method provided by the invention and its device have the advantageous effect of the following aspects：
Percussion welder control method provided by the invention can be calculated accurately and control the accurate control machines control of output
Angle processed, treatment effeciency are high.Meanwhile when the voltage of energy capacitance set will be filled with, three phase full bridge rectification module is using single-phase whole
Flow Technique reduces the charging current of energy capacitance set, makes voltage control more accurate.The percussion welder control method charge efficiency
Height, the charging time is short, applied widely.
A kind of percussion welder control device provided by the invention integrates the control for improving original three-phase intelligent charging module
Part, three-phase alternating current synchronizing signal is directly inputted to DSP master control borads, then is exported after algorithm by DSP master control borads and accurately may be used
Silicon delay angle is controlled, three phase full bridge rectification module is triggered by three-phase controllable silicon trigger board, so as to make filling for energy capacitance set
Electric current is more steady, shortens the charging time, charging voltage is more accurate, and system stability is more preferable.
Description of the drawings
It in order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the functional block diagram of percussion welder control method that the specific embodiment of the invention provides；
Fig. 2 is the composition frame chart of DSP master control borads in the percussion welder control method that the specific embodiment of the invention provides；
Fig. 3 is the composition frame chart of percussion welder control device that the specific embodiment of the invention provides.
Icon：100- percussion welder control devices；110-DSP master control borads；111-DSP chips；112- secondary currents detect
Circuit；113- capacitance voltage voltage-frequency conversion circuits；114- Proportion valve controlling circuit modules；115- three-phase zero cross detection circuits；
116- communication modules；117- exterior I O circuits；118- power modules；120- human-computer interaction interfaces；130- three-phase controllable silicons trigger
Plate；140- three phase full bridge rectification modules；150- step-up transformers；160- energy capacitance sets；170- voltage detection modules；180- is welded
Connect transformer.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be configured to arrange and design with a variety of different.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiments obtained without creative efforts belong to the model that the present invention protects
It encloses.
In the description of the present invention, it is to be understood that the orientation or position relationship of the instructions such as term " on ", " under " are base
In orientation shown in the drawings or position relationship or product of the present invention using when the orientation usually put or position relationship or
Person is the orientation or position relationship that those skilled in the art usually understand, is for only for ease of the description present invention and simplifies description,
Rather than instruction or imply signified equipment or element must have specific orientation, with specific azimuth configuration and operation, because
This is not considered as limiting the invention.
" first ", " second " etc. of the present invention, is only used to distinguish between description, has no special meaning.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；Can be
It is connected directly, can also be indirectly connected by intermediary.It for the ordinary skill in the art, can be with concrete condition
Understand the concrete meaning of above-mentioned term in the present invention.
Fig. 1 is the functional block diagram of percussion welder control method that the specific embodiment of the invention provides, and please refers to Fig. 1.
A kind of percussion welder control method provided in this embodiment, includes the following steps：
S1：Boosting.Percussion welder starts, and step-up transformer 150 is by the three-phase alternating current electric boost of input.
S2：The triggering of three phase full bridge rectification module 140 starts.The triggering of three phase full bridge rectification module 140 starts, after boosting
Three-phase alternating current electric rectification is direct current.
S3：Energy capacitance set 160 charges.It boosts and the direct current after rectification charges to energy capacitance set 160.
S4：The charging voltage of detection energy capacitance set 160 in real time.When charging voltage reaches preset voltage value, three phase full bridge
Rectification module 140 is switched to single-phase rectifier pattern.
Specifically, in the percussion welder control method, three phase full bridge rectification module 140 passes through three-phase controllable silicon trigger board
130 controls start or stop.
Also, it is controlled using DSP master control borads 110, DSP master control borads 110 are connect with three-phase controllable silicon trigger board 130；
Three-phase alternating current synchronizing signal is directly inputted to DSP master control borads 110, then is exported after being calculated analytically by DSP master control borads 110 controllable
Silicon delay angle.
Three phase full bridge rectification module 140 uses three-phase full-wave triggering technique, and DSP master control borads 110 directly export three-phase full-wave
Trigger signal, control three phase full bridge rectification module 140 charge.
Preferably, in 160 charge step of energy capacitance set, DSP master control borads 110 use constant current control algorithm, realize to storage
The constant-current charge of energy capacitance group 160.The scan period of DSP master control borads 110 is 1ms.Compared to the controllers such as PLC 10ms scannings one
Secondary, the scan period shortens, and can accurately control the angle of flow of three-phase controllable silicon trigger board 130, and charging current is more steady, contracting
Short charging time.It is very big to avoid initiation of charge electric current, at the end of charging current very little the problem of.
In real time in the charging voltage step of detection energy capacitance set 160, detected in real time using voltage detection module 170, electricity
Detection module 170 is pressed to include at least one voltage sensor, voltage sensor detects the voltage of energy capacitance set 160.
Fig. 2 is the composition frame chart of DSP master control borads 110 in the percussion welder control method that the specific embodiment of the invention provides,
Please refer to Fig. 2.
DSP master control borads 110 are integrated with secondary current detection circuit 112, three-phase zero cross detection circuit 115, proportional valve control
Circuit module 114, capacitance voltage voltage-frequency conversion circuit 113 can realize secondary current detection and three-phase zero passage detection.Using than
Example valve controling circuit module 114 controls the static pressure pressure of welding machine, and the weldering of welding machine is controlled using capacitance voltage voltage-frequency conversion circuit 113
Connect frequency so that equipment operation stability is more preferable.
Specifically, DSP master control borads 110 include dsp chip 111, power module 118, secondary current detection circuit 112, electricity
Hold voltage voltage-frequency conversion circuit 113, Proportion valve controlling circuit module 114, communication module 116,115 and of three-phase zero cross detection circuit
Exterior I O circuit 117.
Dsp chip 111 respectively with power module 118, secondary current detection circuit 112, capacitance voltage voltage-frequency conversion circuit
113rd, Proportion valve controlling circuit module 114, communication module 116, three-phase zero cross detection circuit 115 and exterior I O circuit 117 connect.
In the welding machine course of work, dsp chip 111 sends out control instruction according to the acquisition signal of reception.Wherein, acquisition signal includes real
When detect voltage signal, secondary current detection circuit 112 detection signal, three-phase zero cross detection circuit 115 detection signal,
The signal of exterior I O circuit 117, human-computer interaction interface 120 transmit signal come etc., one in these above-mentioned signals or
Comprehensive multiple signals send out control instruction, go to capacitance voltage voltage-frequency conversion circuit 113, Proportion valve controlling circuit module 114,
Communication module 116 etc., to control display parameters of the welding frequency of welding machine, static pressure pressure, display screen etc..
Power module 118 is powered for dsp chip 111, and secondary current detection circuit 112 is for detection electric current in real time, capacitance
Voltage voltage-frequency conversion circuit 113 is used to capacitance voltage signal being converted into the corresponding frequency signal of voltage, Proportion valve controlling circuit
Module 114 is used to control the static pressure pressure of welding machine, and communication module 116 is connect with human-computer interaction interface 120, for signal transmission,
Three-phase zero cross detection circuit 115 can realize the accurate control of the no-voltage of dsp chip 111.
Fig. 3 is the composition frame chart of percussion welder control device 100 that the specific embodiment of the invention provides, and please refers to Fig. 3.
A kind of percussion welder control device 100 provided in this embodiment, including DSP master control borads 110, human-computer interaction interface
120th, three-phase controllable silicon trigger board 130, three phase full bridge rectification module 140, step-up transformer 150, energy capacitance set 160, voltage
Detection module 170 and welding transformer 180.
DSP master control borads 110 respectively with human-computer interaction interface 120, three-phase controllable silicon trigger board 130, voltage detection module 170
Connected with welding transformer 180, three phase full bridge rectification module 140 respectively with step-up transformer 150, three-phase controllable silicon trigger board
130 connections, energy capacitance set 160 are connect respectively with welding transformer 180, voltage detection module 170.
DSP master control borads 110 include dsp chip 111, secondary current detection circuit 112, capacitance voltage voltage-frequency conversion circuit
113 and Proportion valve controlling circuit module 114.Dsp chip 111 turns respectively with secondary current detection circuit 112, capacitance voltage voltage-frequency
It changes circuit 113 and Proportion valve controlling circuit module 114 connects, dsp chip 111 sends out control according to the acquisition signal of reception and refers to
It enables, secondary current detection circuit 112 is used for real-time sensed current signal, and capacitance voltage voltage-frequency conversion circuit 113 is used for capacitance
Voltage signal is converted into the corresponding frequency signal of voltage, and Proportion valve controlling circuit module 114 is used to control the static pressure pressure of welding machine.
Three-phase controllable silicon trigger board 130 triggers three phase full bridge rectification module 140 under the control instruction of DSP master control borads 110,
AC rectification after boosting is by step-up transformer 150 by the three-phase alternating current electric boost of input, three phase full bridge rectification module 140
Direct current, direct current are used to charge for energy capacitance set 160, and voltage detection module 170 detects the electricity of energy capacitance set 160 in real time
Pressure, when voltage reaches preset voltage value, three phase full bridge rectification module 140 is switched to single-phase rectifier operating mode, reduces energy storage electricity
The charging current of appearance group 160.
Percussion welder control method provided by the invention, operation principle are as follows：
The control section of original three-phase intelligent charging module is improved by integrating, three-phase alternating current synchronizing signal is directly inputted to
DSP master control borads 110, then accurate thyristor trigger angle is exported after algorithm by DSP master control borads 110, it can by three-phase
It controls silicon trigger board 130 and triggers three phase full bridge rectification module 140.Step-up transformer 150 is by the three-phase alternating current electric boost of input, three-phase
AC rectification after boosting is direct current by full-bridge rectification module 140, and direct current is used to charge for energy capacitance set 160, electricity
Detection module 170 is pressed to detect the voltage of energy capacitance set 160 in real time, when voltage reaches preset voltage value, DSP master control borads 110 are controlled
Three phase full bridge rectification module 140 processed is switched to single-phase rectifier operating mode, reduces the charging current of energy capacitance set 160.Three-phase
Full-bridge rectification module 140 uses three-phase full-wave triggering technique, improves the density of charging current, shortens the charging time, improves
Efficiency.
In conclusion percussion welder control method provided by the invention and its device have the beneficial effect of the following aspects
Fruit：
Percussion welder control method provided by the invention can be calculated accurately and control the accurate control machines control of output
Angle processed, treatment effeciency are high.Meanwhile when the voltage of energy capacitance set 160 will be filled with, three phase full bridge rectification module 140 uses
Single-phase rectifier technology reduces the charging current of energy capacitance set 160, makes voltage control more accurate.The percussion welder controlling party
Method charge efficiency is high, and the charging time is short, applied widely.
Percussion welder control device 100 provided by the invention integrates the control for improving original three-phase intelligent charging module
Part, three-phase alternating current synchronizing signal is directly inputted to DSP master control borads 110, then exports essence after algorithm by DSP master control borads 110
Three phase full bridge rectification module 140 is triggered, so as to make storage in true thyristor trigger angle by three-phase controllable silicon trigger board 130
The charging current of energy capacitance group 160 is more steady, shortens the charging time, charging voltage is more accurate, and system stability is more preferable.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the present invention can have various changes, combination and variation.All within the spirits and principles of the present invention, made
Any modification, equivalent substitution, improvement and etc. should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of percussion welder control method, which is characterized in that include the following steps：
Boosting；Percussion welder starts, and step-up transformer is by three-phase alternating current electric boost；
The triggering of three phase full bridge rectification module starts, and is direct current by the three-phase alternating current electric rectification after boosting；
Energy capacitance set charges, and boosts and the direct current after rectification charges to the energy capacitance set；
The charging voltage of the energy capacitance set is detected in real time, and when the charging voltage reaches preset voltage value, the three-phase is complete
Bridge rectification module is switched to single-phase rectifier pattern.
2. percussion welder control method according to claim 1, which is characterized in that the three phase full bridge rectification module passes through
The control of three-phase controllable silicon trigger board starts or stops.
3. percussion welder control method according to claim 2, which is characterized in that controlled using DSP master control borads, institute
DSP master control borads are stated to connect with the three-phase controllable silicon trigger board；Three-phase alternating current synchronizing signal is directly inputted to the DSP master controls
Plate, then export thyristor trigger angle after being calculated analytically by the DSP master control borads.
4. percussion welder control method according to claim 3, which is characterized in that the three phase full bridge rectification module uses
Three-phase full-wave triggering technique, the DSP master control borads directly export three-phase full-wave trigger signal, control the three phase full bridge rectification mould
Block charges.
5. percussion welder control method according to claim 4, which is characterized in that the scan period of the DSP master control borads
For 1ms.
6. percussion welder control method according to claim 3, which is characterized in that the DSP master control borads are integrated with secondary
Current detection circuit and three-phase zero cross detection circuit can realize secondary current detection and three-phase zero passage detection.
7. percussion welder control method according to claim 3, which is characterized in that the energy capacitance set charge step
In, the DSP master control borads use constant current control algorithm, realize the constant-current charge to the energy capacitance set.
8. percussion welder control method according to claim 1, which is characterized in that described to detect the storage capacitor in real time
It in the charging voltage step of group, is detected in real time using voltage detection module, the voltage detection module includes at least one voltage
Sensor, the voltage sensor detect the voltage of the energy capacitance set.
9. percussion welder control method according to claim 3, which is characterized in that the DSP master control borads integrate proportional
Valve controling circuit module and capacitance voltage voltage-frequency conversion circuit, using the static pressure of Proportion valve controlling circuit module control welding machine
Pressure controls the charging voltage of the welding machine using the capacitance voltage voltage-frequency conversion circuit.
10. a kind of percussion welder control device, which is characterized in that complete including DSP master control borads, three-phase controllable silicon trigger board, three-phase
Bridge rectification module, step-up transformer, energy capacitance set, voltage detection module and welding transformer；
The DSP master control borads respectively with the three-phase controllable silicon trigger board, the voltage detection module and the welding transformer
Connection, the three phase full bridge rectification module are connect respectively with the step-up transformer, the three-phase controllable silicon trigger board, the storage
Energy capacitance group is connect respectively with the welding transformer, the voltage detection module；
The DSP master control borads include dsp chip, secondary current detection circuit, capacitance voltage voltage-frequency conversion circuit and Proportional Valve-controlled
Circuit module processed；The dsp chip respectively with the secondary current detection circuit, the capacitance voltage voltage-frequency conversion circuit and institute
The connection of Proportion valve controlling circuit module is stated, the dsp chip sends out control instruction, the secondary electrical according to the acquisition signal of reception
Current detection circuit is used for real-time sensed current signal, and the capacitance voltage voltage-frequency conversion circuit is used to convert capacitance voltage signal
Into the corresponding frequency signal of voltage, the Proportion valve controlling circuit module is used to control the static pressure pressure of the welding machine；
The three-phase controllable silicon trigger board triggers the three phase full bridge rectification module under the control instruction of the DSP master control borads,
Three-phase alternating current electric rectification after boosting is by the step-up transformer by three-phase alternating current electric boost, the three phase full bridge rectification module
Direct current, the direct current are used to charge for the energy capacitance set, and the voltage detection module detects the energy storage electricity in real time
The voltage of appearance group, when the voltage reaches predeterminated voltage, the three phase full bridge rectification module is switched to single-phase rectifier operating mode,
Reduce the charging current of the energy capacitance set.
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| CN201711488978.7A CN108183536A (en) | 2017-12-29 | 2017-12-29 | Percussion welder control method and its device |
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