CN105508230B - Air compressor machine Frequency Drive Control all-in-one machine and air compressor machine variable frequency drive control system - Google Patents
Air compressor machine Frequency Drive Control all-in-one machine and air compressor machine variable frequency drive control system Download PDFInfo
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- CN105508230B CN105508230B CN201511030066.6A CN201511030066A CN105508230B CN 105508230 B CN105508230 B CN 105508230B CN 201511030066 A CN201511030066 A CN 201511030066A CN 105508230 B CN105508230 B CN 105508230B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
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- General Engineering & Computer Science (AREA)
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- Control Of Positive-Displacement Pumps (AREA)
Abstract
This application discloses air compressor machine Frequency Drive Control all-in-one machine and air compressor machine variable frequency drive control systems, the all-in-one machine has been internally integrated rectification unit, buffer resistance, controllable switch, switch driving circuit, energy-storage units, the first inversion unit, the second inversion unit, Industrial Frequency Transformer, control unit and busbar voltage detection circuit, wherein：The parallel-connection structure that the electric energy output end of rectification unit is made of in concatenation the switch contact of buffer resistance and controllable switch is followed by the electrical energy inputs of energy-storage units, and the electric energy output end of energy-storage units accesses two inversion units；Control unit is connected with two inversion units, busbar voltage detection circuit and switch driving circuit respectively；The control terminal of another termination controllable switch of switch driving circuit；Industrial Frequency Transformer primary side connects the electrical energy inputs of rectification unit, and secondary side is used to export electric energy to solenoid winding.The application reduces the volume of air compressor machine variable frequency drive control system, reduces system cost, improves system overall aesthetics.
Description
Technical field
The present invention relates to air compressor machine control and applied technical fields, more specifically to air compressor machine Frequency Drive Control
All-in-one machine and air compressor machine variable frequency drive control system.
Background technology
Currently, the variable frequency drive control system of air compressor (abbreviation air compressor machine) is mainly with the first frequency converter and second
Centered on frequency converter, and it is furnished with power supply source, control unit and a series of other peripheral equipments, wherein：First frequency converter is used
In the host of driving air compressor machine, second frequency converter is used to drive the oil cooling wind turbine of air compressor machine, the two frequency converters are in structure
Functionally independently of one another；Described control unit is built-in with air compressor system control software, is the entire compressor operation work of control
The brain of work.
But above-mentioned variable frequency drive control system building block is more, wiring is more complicated so that system overall aesthetics
It is insufficient；Meanwhile entire variable frequency drive control system the problem of that there is also builds is huge, high expensive.
Invention content
In view of this, the present invention provides air compressor machine Frequency Drive Control all-in-one machine and air compressor machine Frequency Drive Control systems
System, to reduce the volume of air compressor machine variable frequency drive control system, reduce system cost and lifting system overall aesthetics.
A kind of air compressor machine Frequency Drive Control all-in-one machine, the all-in-one machine be internally integrated rectification unit, buffer resistance, can
Control switch, energy-storage units, the first inversion unit, the second inversion unit, Industrial Frequency Transformer, is built-in with pneumatics at switch driving circuit
The control unit of machine system controlling software and busbar voltage detection circuit for measuring DC bus-bar voltage, wherein：
The electric energy output end of the rectification unit is concatenating switch contact and the buffer resistance by the controllable switch
The electrical energy inputs of the energy-storage units are accessed after the parallel-connection structure of composition；
The electric energy output end of the energy-storage units accesses the electric energy of first inversion unit and second inversion unit
Input terminal；
The electric energy output end of first inversion unit is used to connect the host of air compressor machine；The electricity of second inversion unit
It can oil cooling wind turbine of the output end for connecting air compressor machine；
Described control unit respectively with first inversion unit, second inversion unit, the busbar voltage detection
There is control and connect in circuit and the switch driving circuit；The control of another termination controllable switch of the switch driving circuit
End processed；
The primary side of the Industrial Frequency Transformer connects the electrical energy inputs of the rectification unit, and secondary side is used for air compressor machine
In each electromagnetic switch coil export electric energy.
Wherein, described control unit includes multiple processors, exchanging data with one another between each processor.
Optionally, first inversion unit and the inversion unit are respectively built-in there are one accessory power supply, the two
Accessory power supply except for for its respectively belonging to inversion unit inside low-voltage assembly power supply in addition to, be additionally operable to inverse for described first
Become the low-voltage assembly power supply outside unit and second inversion unit.
Optionally, it is also integrated with inside the all-in-one machine：It is connected on the electric energy output end of the rectification circuit and the storage
Direct current reactor between the electrical energy inputs of energy unit.
Optionally, it is also integrated with inside the all-in-one machine：It is connected to the electrical energy inputs of the rectification unit and the control
Input phase failure sample circuit between unit processed and/or electric power detection component.
Optionally, it is also integrated with inside the all-in-one machine and is connected to the Industrial Frequency Transformer secondary side and each electromagnetism is opened
Voltage selecting circuit between the coil of pass, wherein：The secondary side winding of the Industrial Frequency Transformer leads to multiple taps；It is described
Voltage selecting circuit includes multiple voltage selection terminals and multiple controllable switches, the quantity and the pumping of the voltage selection terminal
The quantity of head is equal, each described tap respectively accesses parallel connection after a voltage selection terminal, and parallel connection point passes through respectively again
Cross the coil that the multiple controllable switch accesses each electromagnetic switch.
A kind of air compressor machine variable frequency drive control system, including any air compressor machine Frequency Drive Control one as disclosed above
Body machine, and outside the all-in-one machine and the man-machine friendship that is connected with the control unit that the all-in-one machine is internally integrated
Mutual equipment, first pressure sensor and the first temperature sensor, wherein：
The first pressure sensor is used to obtain the measured value of the gas pressure of air compressor machine discharge duct；
First temperature sensor is used to obtain the measured value of handpiece of air compressor oil gas temperature.
Optionally, the air compressor machine variable frequency drive control system is provided with the long-range control being connected with the human-computer interaction device
Molding block, wherein：The remote control module integrates GPRS module and GPS module function, for realizing telecommunication and
Positioning.
Optionally, when air compressor machine is provided with host fan, the air compressor machine variable frequency drive control system further includes：Connection
Circuit of testing the phase sequence between the electrical energy inputs and described control unit of the rectification unit；And it is connected on the host
Contactor in the supply line of fan, wherein the break-make of the contactor is controlled by described control unit.
Optionally, the human-computer interaction device has and is set with the human-computer interaction in other air compressor machine variable frequency drive control systems
The standby communication interface communicated.
It can be seen from above-mentioned technical scheme that：The basic module of one existing frequency converter includes at least rectification unit, delays
Resistance, controllable switch, energy-storage units and inversion unit are rushed, and the present invention is by designing the first inversion unit and the second inversion unit
Common DC bus, to be constructed in the case where saving rectification unit, buffer resistance, controllable switch and energy-storage units all the way
Two equivalent frequency converters realize the purpose for reducing system cost by improving component comprehensive utilization ratio, reducing system bulk.
Also, the design of all-in-one machine can also make level of integrated system higher, volume smaller, wiring also more succinct；Also just because of not having
Mixed and disorderly wiring, system overall aesthetics also obtain very big promotion.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of air compressor machine Frequency Drive Control all-in-one machine structure schematic diagram disclosed by the invention；
Fig. 2 is another air compressor machine Frequency Drive Control all-in-one machine structure schematic diagram disclosed by the invention；
Fig. 3 is a kind of air compressor machine variable frequency drive control system structural schematic diagram disclosed by the invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the embodiment of the invention discloses a kind of air compressor machine Frequency Drive Control all-in-one machines, to reduce air compressor machine change
The volume of frequency driving control system reduces system cost and lifting system overall aesthetics, the all-in-one machine have been internally integrated whole
Flow unit 101, buffer resistance R1, controllable switch KM1, switch driving circuit 102, energy-storage units 103, the first inversion unit 104,
Second inversion unit 105, Industrial Frequency Transformer 204, the control unit 106 for being built-in with air compressor system control software and for surveying
The busbar voltage detection circuit 107 of DC bus-bar voltage is measured, wherein：
The electric energy output end of rectification unit 101 is made of in concatenation the switch contact and buffer resistance R1 of controllable switch KM1
Parallel-connection structure after access energy-storage units 103 electrical energy inputs；
The electric energy output end of energy-storage units 103 accesses the electric energy input of the first inversion unit 104 and the second inversion unit 105
End, i.e. 105 common DC bus of the first inversion unit 104 and the second inversion unit；
The electric energy output end of first inversion unit 104 is used to connect the host of air compressor machine；The electric energy of second inversion unit 105
Output end is used to connect the oil cooling wind turbine of air compressor machine；
Control unit 106 respectively with the first inversion unit 104, the second inversion unit 105, busbar voltage detection circuit 107
There is control with switch driving circuit 102 to connect；The control terminal of another termination controllable switch KM1 of switch driving circuit 102；
The primary side of Industrial Frequency Transformer 204 connects the electrical energy inputs of rectification unit 101, and secondary side is used for into air compressor machine
Each electromagnetic switch coil export electric energy.
For convenience of differentiation, major loop indicated with heavy line with the arrow in Fig. 1, indicate connection with fine line with the arrow
Road or weak electric signal circuit, arrow direction representation signal transmission direction.The work of the all-in-one machine of air compressor machine Frequency Drive Control shown in Fig. 1
It is as follows to make principle：
Air compressor machine is switched on after the power is turned on, and the rectified unit of the 380V three-phase alternating currents of input 101 is rectified into direct current, described straight
Galvanic electricity is charged by buffer resistance R1 to the bus capacitor in energy-storage units 103；At the same time, busbar voltage detection circuit 107
Bus capacitor both end voltage described in on-line measurement, and measurement result is sent into control unit 106；Control unit 106 is detecting
When the bus capacitor is charged to predeterminated voltage, the coil that controllable switch KM1 is controlled by switch driving circuit 102 obtains electric, line
Enclose it is electric after generate electromagnetic attraction push or pull on controllable switch KM1 switch contact be closed so that buffer resistance R1 is short-circuited,
Cause bus capacitor both end voltage relatively low to avoid buffer resistance R1 from dividing, wherein：
Buffer resistance R1 is for preventing system boot from occurring excessive current-rising-rate after the power is turned on and burning out device；Energy storage list
Member 103 include the bus capacitor and equalizing resistance, the series-parallel structure of the multiple electrolytic capacitors of bus capacitor generally use,
It is mainly used for the energy storage after rectification and filtering, each described electrolytic capacitor is in parallel, and there are one the equalizing resistances, described equal
The effect of piezoresistance is so that each electrolytic capacitor both end voltage is impartial using voltage divider principle, described equal when alternating current powers off
Piezoresistance is additionally operable to discharge to the bus capacitor.
When controllable switch KM1 switch contact be closed after, all-in-one machine start commencement of commercial operation drive air compressor machine host and
Oil cooling wind turbine, specially：Above-mentioned bus capacitor both end voltage can be applied to the first inversion unit 104 and the second inversion unit simultaneously
105 electrical energy inputs, the voltage are also known as DC bus-bar voltage, and this circuit connection state is known as the first inversion unit 104
With 105 common DC bus of the second inversion unit；Based on the circuit connection state, the first inversion unit 104 is in control unit 106
Under control, the DC bus-bar voltage that energy-storage units 103 export is converted into AC frequency conversion output, drives host；Second is inverse simultaneously
Become unit 105 under the control of the control unit 106, the DC bus-bar voltage that energy-storage units 103 export is converted into AC frequency conversion
Output drives oil cooling wind turbine.
Air compressor system control software built in control unit 106 includes at least switch control logic, host inversion control
Algorithm and wind turbine inversion control algorithm, may also include temperature PID adjuster and pressure PID regulator etc. in addition, wherein：
1) switch control logic is used to detect that voltage value that busbar voltage detection circuit 107 measures reaches described
When predeterminated voltage, the switch contact that controllable switch KM1 is controlled by switch driving circuit 102 is closed.
2) the host inversion control algorithm is used for the output frequency by controlling the first inversion unit 104 and start and stop, comes
Control rotating speed and the start and stop of host；At the same time, the pressure PID regulator is according to the gas pressure of air compressor machine discharge duct
Deviation between measured value and desired value adjusts the output frequency of the first inversion unit 104, if measured value is higher than desired value
Then engine speed is enabled to reduce, if measured value less than enabling engine speed increase if desired value, to ensure that supply gas pressure is constant；Its
In, the measured value of the gas pressure of the air compressor machine discharge duct can be by the first pressure sensor outside all-in-one machine
203 obtain (referring also to Fig. 1)；
3) the wind turbine inversion control algorithm is used for the output frequency by controlling the second inversion unit 105, to control oil
The rotating speed of air-cooler and start and stop；Simultaneously with this, the temperature PID adjuster according to the measured value of handpiece of air compressor oil gas temperature with
Deviation between desired value adjusts the output frequency of the second inversion unit 105, if measured value higher than if desired value enabling oil cooling
Rotation speed of fan increases, if measured value less than the reduction of oil cooling rotation speed of fan is enabled if desired value, to ensure that lubricating oil temperature is stablized
A certain range；Wherein, the measured value of the handpiece of air compressor oil gas temperature can be passed by the first temperature outside all-in-one machine
Sensor 202 obtains (referring also to Fig. 1).
Staff can input one by the human-computer interaction device 201 (referring also to Fig. 1) outside all-in-one machine
The given value of body machine internal operation parameter (such as operational parameter of the operational parameter of pressure PID regulator, temperature PID adjuster)
With input start-up and shut-down control signal etc., worked with controlling entire compressor operation；Control unit 106 can also pass through man-machine friendship simultaneously
Mutual equipment 201 exports the actual value of all-in-one machine internal operation state, such as output frequency of the first inversion unit 104, second in real time
The output frequency of inversion unit 105, run time of air compressor machine etc., facilitate staff to monitor.Wherein, human-computer interaction device
201 may be used the composite structure of keyboard and display, can also use touch screen, not limit to.
All-in-one machine shown in Fig. 1 is the nucleus module in air compressor machine variable frequency drive control system, is mounted on outside all-in-one machine
First pressure sensor 203, the first temperature sensor 202, human-computer interaction device 201 also belong to air compressor machine Frequency Drive Control
The important composition component of system.
By the description of the above-mentioned structure and working principle to all-in-one machine shown in Fig. 1 it is found that compared to using two structures and
The prior art of function frequency converter independent of each other, the present embodiment rectification unit 101, buffer resistance R1, controllable switch KM1,
Energy-storage units 103 and the first inversion unit 104 drive host as basic module, while with rectification unit 101, buffer resistance
R1, controllable switch KM1, energy-storage units 103 and the second inversion unit 105 drive oil cooling wind turbine as basic module.Compared to
The prior art, the present embodiment are multiplexed rectification unit 101, buffer resistance R1, controllable switch KM1 and energy-storage units 103, make first inverse
Become unit 104 and 105 common DC bus of the second inversion unit, improve component comprehensive utilization ratio, help to reduce system cost,
Reduce system bulk.Also, the design of all-in-one machine, moreover it is possible to make air compressor machine variable frequency drive control system integrated level higher, volume more
Small, wiring is also more succinct；Also just because of without mixed and disorderly wiring, system overall aesthetics also obtains very big promotion.
Wherein, it is the reliability for ensureing power supply, the first inversion unit 104, the second inversion unit 105 can respectively built-in one
A accessory power supply, for providing low pressure direct current of voltage regulation for the low-voltage assembly in respective affiliated inversion unit, the two auxiliary
Power supply takes energy from energy-storage units 103.In addition, the two accessory power supplys being integrated in respectively in two inversion units remove and may be used also
For powering for all or part of low-voltage assembly outside the first inversion unit 104 and the second inversion unit 105, without
Accessory power supply additionally is set for it again, this design by accessory power supply and frequency conversion integrated makes level of integrated system higher, volume
Smaller, wiring are more succinct.It illustrates：It is human-computer interaction device 201, the using the accessory power supply in the first inversion unit 104
The equal low-voltage assemblies power supply of one pressure sensor 203；It is simultaneously switch drive using the accessory power supply in the second inversion unit 105
The low-voltage assemblies such as circuit 102, busbar voltage detection circuit 107, control unit 106 are powered.
Wherein, control unit 106 can be only with a processor, but a processor work load is heavier, operation speed
Degree is slow, and there are high-performance processor purchase cost is too high if being directly substituted for a high-performance processor
Problem；Therefore, the present embodiment recommends control unit 106 to use multiple processors, exchanging data with one another between each processor, excellent
Point is the work load that can reduce single processor, improves the arithmetic speed of single processor, and the multiple processor is total
Purchase cost will be less than a high-performance processor purchase cost.
Optionally, it referring also to Fig. 1, is also integrated with inside the all-in-one machine：It is connected on the electric energy output end of rectification unit 101
Direct current reactor L1 between the electrical energy inputs of energy-storage units 103 improves exchange input for reducing exchange input harmonics
Power factor value.
Optionally, referring also to Fig. 1, be also integrated with inside the all-in-one machine secondary side for being connected to Industrial Frequency Transformer 204 and
Voltage selecting circuit 110 between the coil of each electromagnetic switch, wherein：Voltage selecting circuit 110 is used in manual operation
Under, select the voltage swing that is powered to the coil of each electromagnetic switch of Industrial Frequency Transformer 204.Specifically, power frequency transformation
The secondary side winding of device 204 leads to multiple taps, and voltage selecting circuit 110 includes multiple voltages selection terminal and multiple controllable
The quantity of switch, the voltage selection terminal is equal with the quantity of the tap, each described tap is each by an institute
Stating voltage selects parallel connection after terminal, parallel connection point to access the line of each electromagnetic switch by the multiple controllable switch respectively again
Circle；When some voltage selection terminal is strobed, the voltage for the tap that voltage selection terminal is connected could be exported to institute
State the coil of each electromagnetic switch.It illustrates：
Common solenoid winding voltage class is 220V, 110V etc., corresponding, the secondary side of Industrial Frequency Transformer 204
Winding leads to 2 taps, and tap voltage is 220V, 110V respectively, voltage selecting circuit 110 have K220 and K110 the two
Voltage selects terminal, staff according to the currently employed solenoid winding voltage class of air compressor machine, by manual operation this
The alternating voltage that two voltage selection terminals are to provide 220V or 110V to choose Industrial Frequency Transformer 204 comes to each electromagnetic switch
The coil power supply of (Fig. 1 only shows two electromagnetic switch as an example, being electromagnetic switch #1 and electromagnetic switch #2 respectively)；Work as pneumatics
Machine it is currently employed be the electromagnetic switch of 220V coil voltage grades when, just manually gating K220, disconnect K110, to be switched to
The alternating voltage current supply circuit of 220V；When air compressor machine it is currently employed be the electromagnetic switch of 110V coil voltage grades when, while you're at it
Dynamic gating K110, disconnection K220 expand the applicable model of the all-in-one machine to be switched to the alternating voltage current supply circuit of 110V
It encloses.
Optionally, the air compressor machine variable frequency drive control system is additionally provided with：It is connected to the electric energy input of rectification unit 101
Hold the input phase failure sample circuit 109 of (i.e. 380V three-phase alternating currents inlet wire) between control unit 106.Input phase failure sampling electricity
Road 109 for on-line measurement input 380V exchange input whether phase shortage, measurement result be sent into control unit 106.It is corresponding, control
Air compressor system control software built in unit 106 processed further includes phase shortage control logic, and the phase shortage control logic is for examining
When measuring 380V exchange input phase failures, triggering human-computer interaction device 201 exports corresponding information warning, while controlling the first inversion
Unit 104 is shut down.Input phase failure sample circuit 109 is generally integrated in inside all-in-one machine, as shown in Figure 2.
Optionally, the air compressor machine variable frequency drive control system is additionally provided with：It is connected to the electric energy input of rectification unit 101
Electric power detection component 111 between end and control unit 106.Electric power detection component 111 is used for the exchange of on-line measurement air compressor machine
The parameters such as input voltage and input current and active power, the apparent energy of calculating air compressor machine, measurement result and result of calculation are sent into control
Unit 106, control unit 106 facilitate staff to monitor in real time by 106 real-time display above-mentioned parameter of human-computer interaction device.
Electric power detection component 111 is integrated in inside all-in-one machine by the present embodiment recommendation, to improve air compressor machine Frequency Drive Control system
The integrated level of system, as shown in Figure 2；Certainly, in the case where all-in-one machine inner space is more nervous, electric power detection component 111
It may be mounted at outside all-in-one machine.In addition, electric power detection module 111 is used as a low-voltage assembly, the low pressure needed for work
Direct current of voltage regulation can be provided by the accessory power supply in the first inversion unit 104, but not limited to.
Optionally, can also collect in addition to components such as inverter circuit, IGBT drive circuits inside the first inversion unit 104
At for for 104 internal component cooling fan of the first inversion unit, fan power supply circuit and for on-line measurement first it is inverse
Become the third temperature sensor of 104 internal temperature of unit, the measurement result of third temperature sensor is sent into control unit 106, is made
The foundation that unit 106 executes overheat protector, adjusts rotation speed of the fan and start-up and shut-down control in order to control.It is corresponding, the second inversion unit 105
Same interior design can also be used.
In addition, the embodiment of the invention also discloses a kind of air compressor machine variable frequency drive control system, to reduce air compressor machine frequency conversion
The volume of driving control system reduces system cost and lifting system overall aesthetics, including any frequency conversion disclosed above
Drive control all-in-one machine, and 106 phase of control unit that is internally integrated outside the all-in-one machine and with the all-in-one machine
Human-computer interaction device 201, first pressure sensor 203 and the first temperature sensor 202 even.Human-computer interaction device 201, first
The structure and function of pressure sensor 203 and the first temperature sensor 202 referring to previously for all-in-one machine verbal description and
Attached drawing 1-2, details are not described herein again.
Optionally, the air compressor machine variable frequency drive control system be additionally provided be connected with human-computer interaction device 201 it is long-range
Control module 108.Remote control module 108 collects GPS (Global Positioning System, global positioning system) module
It, in one, is used for GPRS (General Packet Radio Service, general packet radio service technology) functions of modules
Realize telecommunication and positioning, specifically：Host computer can be achieved to the long-range real-time positioning of air compressor machine and remote monitoring pneumatics
Frequency, pressure at expulsion, oil gas temperature, run time, the electricity etc. of machine operation, can also the temperature of remote setting air compressor machine, pressure,
Add the parameters such as unloading, PID and realize long-range start-up and shut-down control etc., to realize to the air compressor machine variable frequency drive control system
Remote monitoring and control.Remote control module 108 is integrated in inside all-in-one machine by the present embodiment recommendation, to improve the pneumatics
The integrated level of machine variable frequency drive control system, as shown in Figure 3.Certainly, in the case where all-in-one machine inner space is more nervous, far
Process control module 108 is also that may be mounted at outside all-in-one machine.In addition, remote control module 108 is used as a low-voltage group
Part, the low pressure direct current of voltage regulation needed for work can be provided by the accessory power supply in the first inversion unit 104, but not office
Limit.
Optionally, referring to Fig. 3, air compressor machine is provided with the host fan for radiating for host, the host fan with
In the case of host out-of-alignment, the air compressor machine variable frequency drive control system is additionally provided with：It is connected to the electric energy of rectification unit 101
Circuit of testing the phase sequence 112 is integrated in by the circuit of testing the phase sequence 112 between input terminal and control unit 106, the present embodiment recommendation
Inside all-in-one machine, to improve the integrated level of the air compressor machine variable frequency drive control system, as shown in figure 3, but not limiting to；Together
When, the air compressor machine variable frequency drive control system further includes：The contactor KM2 being connected in the supply line of the host fan
(contactor KM2 also belongs to one of air compressor machine electromagnetic switch, and the present embodiment is recommended contactor KM2 being mounted on all-in-one machine
Outside, but do not limit to).The break-make of contactor KM2 is controlled the (control terminal and control unit of contactor KM2 by control unit 106
Circuit connecting relation between 106 is not shown in FIG. 3).Its operation principle is as follows：
When contactor KM2 is closed, the host fan is started to work.Circuit of testing the phase sequence 112 is for detecting exchange input
R, S, T-phase sequence, measurement result are sent into control unit 106；In the host fan and host out-of-alignment, if user
R, S, T-phase sequence is reversed, and the host fan can invert, and can not radiate to host, at this time 106 control contactor of control unit
KM2 is disconnected, while being controlled main shut-down system and being burnt to avoid host overheat.In addition, also circuit of testing the phase sequence 112 and input can be lacked
The hardware circuit of phase detecting circuit 109 merges into a circuit, judge on software phase sequence it is positive and negative and whether phase shortage.
Optionally, referring also to Fig. 3, the air compressor machine variable frequency drive control system further includes：Outside the all-in-one machine
Portion and the fuse F1 being in series with contactor KM2.Fuse F1 is for preventing from leading because of wrong line in external host fan
The phenomenon that there is high current in cause, and the system of in turn resulting in is operated a switch.
Optionally, referring also to Fig. 3, the air compressor machine variable frequency drive control system further includes：Outside all-in-one machine and
The second temperature sensor 114 being connected with control unit 106.Second temperature sensor 114 is for on-line measurement air compressor machine
Host temperature, measurement result is sent into control unit 106, to provide corresponding early warning and alarm signal when temperature reaches preset value
Breath.
Optionally, referring also to Fig. 3, the air compressor machine variable frequency drive control system further includes：Outside all-in-one machine and
The second pressure sensor 115 being connected with control unit 106.Second pressure sensor 115 is for on-line measurement air compressor machine
Pressure in oil gas cylinder, measurement result be sent into control unit 106, so as to provided when pressure reaches preset value corresponding early warning and
Warning message.
Optionally, referring also to Fig. 3, the air compressor machine variable frequency drive control system further includes：Outside all-in-one machine and
The switching input module 116 being connected with control unit 106, switching input module 116 include that air filter blocks, oily filter is blocked up
The switching input modules such as plug, essence divide device to block, separator blocks, facilitate control unit 106 monitoring air filter, oily filter
Device, essence timely alert when dividing the blockings such as device, separator, prevent unexpected generation.
Optionally, human-computer interaction device 106 also has and the human-computer interaction in other air compressor machine variable frequency drive control systems
Equipment carries out the communication interface of data interaction, such as RS485 communication interfaces；Under the larger occasion of gas consumption, more pneumatics are needed
Machine supplies simultaneously, an air compressor machine hosted may be used at this time, other air compressor machines do slave, passes through institute between each air compressor machine
It states communication interface and carries out data interaction realization joint control.
Under normal conditions, the air compressor machine variable frequency drive control system also has：Outside the all-in-one machine and control
The emergency stop switch that unit 106 processed is connected.Staff in case of emergency presses emergency stop switch, and control unit 106 is in emergency stop
The main shut-down system of air compressor machine is controlled when switch is pressed (emergency stop switch is not shown in Fig. 3).
In conclusion the basic module of an existing frequency converter include at least rectification unit, buffer resistance, controllable switch,
Energy-storage units and inversion unit, and the present invention is by designing the first inversion unit and the second inversion unit common DC bus, to
Two equivalent frequency converters have been constructed in the case where saving rectification unit, buffer resistance, controllable switch and energy-storage units all the way,
Realize the purpose for reducing system cost by improving component comprehensive utilization ratio, reducing system bulk.Also, all-in-one machine is set
Meter can also make level of integrated system higher, volume smaller, wiring also more succinct；Also just because of without mixed and disorderly wiring, it is
System overall aesthetics also obtains very big promotion.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can in other embodiments be realized in the case where not departing from the spirit or scope of the embodiment of the present invention.Therefore,
The embodiment of the present invention is not intended to be limited to the embodiments shown herein, and be to fit to principles disclosed herein and
The consistent widest range of features of novelty.
Claims (10)
1. a kind of air compressor machine Frequency Drive Control all-in-one machine, which is characterized in that the all-in-one machine has been internally integrated rectification unit, has delayed
Rush resistance, controllable switch, switch driving circuit, energy-storage units, the first inversion unit, the second inversion unit, Industrial Frequency Transformer, interior
It is equipped with the control unit of air compressor system control software and the busbar voltage detection circuit for measuring DC bus-bar voltage,
In：
The electric energy output end of the rectification unit is made of in concatenation the switch contact and the buffer resistance of the controllable switch
Parallel-connection structure after access the electrical energy inputs of the energy-storage units；
The electric energy output end of the energy-storage units accesses the electric energy input of first inversion unit and second inversion unit
End；
The electric energy output end of first inversion unit is used to connect the host of air compressor machine；The electric energy of second inversion unit is defeated
Outlet is used to connect the oil cooling wind turbine of air compressor machine；
Described control unit respectively with first inversion unit, second inversion unit, the busbar voltage detection circuit
There is control with the switch driving circuit to connect；The control of another termination controllable switch of the switch driving circuit
End；
The primary side of the Industrial Frequency Transformer connects the electrical energy inputs of the rectification unit, and secondary side is used for into air compressor machine
The coil of each electromagnetic switch exports electric energy；
The energy-storage units include bus capacitor and equalizing resistance, and the bus capacitor uses the series-parallel knot of multiple electrolytic capacitors
Structure, each described electrolytic capacitor is in parallel, and there are one the equalizing resistances.
2. all-in-one machine according to claim 1, which is characterized in that described control unit includes multiple processors, each to handle
It is exchanging data with one another between device.
3. all-in-one machine according to claim 1, which is characterized in that first inversion unit and second inversion unit
Respectively built-in there are one accessory power supply, the two accessory power supplys are removed for for the low electricity inside its respectively affiliated inversion unit
It presses outside assembly power supply, is additionally operable to as the low-voltage assembly power supply outside first inversion unit and second inversion unit.
4. all-in-one machine according to claim 1, which is characterized in that be also integrated with inside the all-in-one machine：It is connected on described
Direct current reactor between the electric energy output end of rectification unit and the electrical energy inputs of the energy-storage units.
5. all-in-one machine according to claim 1, which is characterized in that be also integrated with inside the all-in-one machine：It is connected to described
Input phase failure sample circuit between the electrical energy inputs and described control unit of rectification unit and/or electric power detection component.
6. all-in-one machine according to claim 1, which is characterized in that be also integrated with inside the all-in-one machine and be connected to the work
Voltage selecting circuit between frequency power transformer secondary side and the coil of each electromagnetic switch, wherein：The Industrial Frequency Transformer
Secondary side winding leads to multiple taps；The voltage selecting circuit includes that multiple voltages select terminals and multiple controllable switches,
The quantity of the voltage selection terminal is equal with the quantity of the tap, each described tap respectively accesses the voltage
In parallel after selection terminal, parallel connection point accesses the coil of each electromagnetic switch by the multiple controllable switch respectively again.
7. a kind of air compressor machine variable frequency drive control system, which is characterized in that including the pneumatics described in any one of claim 1-6
Machine Frequency Drive Control all-in-one machine, and outside the all-in-one machine and the control that is internally integrated with the all-in-one machine
Unit connected human-computer interaction device, first pressure sensor and the first temperature sensor, wherein：
The first pressure sensor is used to obtain the measured value of the gas pressure of air compressor machine discharge duct；
First temperature sensor is used to obtain the measured value of handpiece of air compressor oil gas temperature.
8. air compressor machine variable frequency drive control system according to claim 7, which is characterized in that the air compressor machine frequency conversion drive
Set-up of control system has the remote control module being connected with the human-computer interaction device, wherein：The remote control module collection
GPRS module and GPS module function are in one, for realizing telecommunication and positioning.
9. air compressor machine variable frequency drive control system according to claim 7, which is characterized in that air compressor machine is provided with host wind
Fan, the air compressor machine variable frequency drive control system further include：It is connected to the electrical energy inputs of the rectification unit and the control
Circuit of testing the phase sequence between unit；
And it is connected on the contactor in the supply line of the host fan, wherein the break-make of the contactor is by the control
Unit control processed.
10. air compressor machine variable frequency drive control system according to claim 7, which is characterized in that the human-computer interaction device
With the communication interface communicated with the human-computer interaction device in other air compressor machine variable frequency drive control systems.
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| CN201511030066.6A CN105508230B (en) | 2015-12-31 | 2015-12-31 | Air compressor machine Frequency Drive Control all-in-one machine and air compressor machine variable frequency drive control system |
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| CN201511030066.6A CN105508230B (en) | 2015-12-31 | 2015-12-31 | Air compressor machine Frequency Drive Control all-in-one machine and air compressor machine variable frequency drive control system |
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| CN106194686A (en) * | 2016-08-01 | 2016-12-07 | 深圳市英威腾电气股份有限公司 | The double Frequency Drive Control all-in-one of a kind of air compressor machine |
| CN106194687A (en) * | 2016-08-12 | 2016-12-07 | 广东葆德科技有限公司 | Air compressor machine |
| CN106532699A (en) * | 2017-01-09 | 2017-03-22 | 合肥美的电冰箱有限公司 | Fresh food express ark for smart community |
| CN106695095A (en) * | 2017-03-06 | 2017-05-24 | 宁夏吴忠市好运电焊机有限公司 | Built-in air pump integrated inverted type plasma cutting machine |
| CN108988716A (en) * | 2017-05-31 | 2018-12-11 | 徐州安邦信汽车电机科技有限公司 | Vector-control frequency converter for electric motor of automobile |
| CN109388094B (en) * | 2017-08-04 | 2021-03-26 | 台达电子工业股份有限公司 | Control system of oil pumping unit |
| CN108155849A (en) * | 2018-02-28 | 2018-06-12 | 深圳市迈凯诺电气股份有限公司 | A kind of novel vertical shaft impact crusher drive system |
| CN109630388A (en) * | 2018-11-23 | 2019-04-16 | 广东艾高装备科技有限公司 | Operation method, storage medium, air compressor machine and the operating system of air compressor machine |
| CN117674238A (en) * | 2024-01-31 | 2024-03-08 | 啸驰电气股份有限公司 | Energy storage frequency converter |
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| KR0176909B1 (en) * | 1996-05-08 | 1999-10-01 | 구자홍 | Driving device of a linear compressor |
| JPH11182445A (en) * | 1997-12-17 | 1999-07-06 | Mitsubishi Electric Corp | Control device of air conditioner |
| CN101295933A (en) * | 2007-04-25 | 2008-10-29 | 中国科学院自动化研究所 | Frequency conversion power source based on digital signal processor controlling |
| CN201298820Y (en) * | 2008-08-04 | 2009-08-26 | 上海电驱动有限公司 | Motor control system for pumping unit in oil field |
| CN201525701U (en) * | 2009-09-16 | 2010-07-14 | 深圳市库马克新技术股份有限公司 | Intelligent speed regulation and control device of crown block |
| CN202789527U (en) * | 2012-08-23 | 2013-03-13 | 深圳市四方电气技术有限公司 | Driving device of screw air compressor and screw air compressor |
| CN205478237U (en) * | 2015-12-31 | 2016-08-17 | 深圳市英威腾电气股份有限公司 | Air compressor machine frequency conversion drive control all -in -one and air compressor machine frequency conversion drive control system |
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