CN105508230A - Air compressor variable-frequency driving and control AIO (All-In-One) machine and air compressor variable-frequency driving and control system - Google Patents
Air compressor variable-frequency driving and control AIO (All-In-One) machine and air compressor variable-frequency driving and control system Download PDFInfo
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- CN105508230A CN105508230A CN201511030066.6A CN201511030066A CN105508230A CN 105508230 A CN105508230 A CN 105508230A CN 201511030066 A CN201511030066 A CN 201511030066A CN 105508230 A CN105508230 A CN 105508230A
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- 238000004146 energy storage Methods 0.000 claims abstract description 28
- 230000003993 interaction Effects 0.000 claims description 22
- 238000012360 testing method Methods 0.000 claims description 16
- 239000003921 oil Substances 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 10
- 238000000819 phase cycle Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 6
- 239000010725 compressor oil Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 description 13
- 239000003990 capacitor Substances 0.000 description 11
- 238000013461 design Methods 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 108010022579 ATP dependent 26S protease Proteins 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- DNTFEAHNXKUSKQ-RFZPGFLSSA-N (1r,2r)-2-aminocyclopentane-1-sulfonic acid Chemical compound N[C@@H]1CCC[C@H]1S(O)(=O)=O DNTFEAHNXKUSKQ-RFZPGFLSSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
Classifications
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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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- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention discloses an air compressor variable-frequency driving and control AIO (All-In-One) machine and an air compressor variable-frequency driving and control system. The air compressor variable-frequency driving and control AIO machine is characterized in that a rectifying unit, a buffer resistor, a controllable switch, a switch driving circuit, an energy storage unit, a first inverter unit, a second inverter unit, an industrial frequency transformer, a control unit and a busbar voltage detecting circuit are integrated in the air compressor variable-frequency driving and control AIO machine, wherein the electric energy output end of the rectifying unit is connected with the electric energy input end of the energy storage unit after being in serial connection with a parallel structure which is formed by the buffer resistor and a switch contact of the controllable switch; the electric energy output end of the energy storage unit is connected into the two inverter units; the control unit is connected with the two inverter units, the busbar voltage detecting circuit and the switch driving circuit; the other end of the switch driving circuit is connected with the control end of the controllable switch; a primary side of the industrial frequency transformer is connected with the electric energy input end of the rectifying unit, and a secondary side of the industrial frequency transformer is used for outputting electric energy to an electromagnetic switch coil. According to the air compressor variable-frequency driving and control AIO machine and the air compressor variable-frequency driving and control system, disclosed by the invention, the size of the air compressor variable-frequency driving and control system is reduced, the cost of the air compressor variable-frequency driving and control system is reduced, and the whole attractiveness of the air compressor variable-frequency driving and control system is increased.
Description
Technical field
The present invention relates to air compressor Control and Application technical field, more particularly, relate to air compressor Frequency Drive Control integrated machine and air compressor Frequency Drive Control system.
Background technique
At present, the Frequency Drive Control system of air compressor (abbreviation air compressor) is mainly centered by the first frequency variator and the second frequency variator, and be furnished with power supply source, control unit and other a series of peripheral unit, wherein: described first frequency variator is for driving the main frame of air compressor, described second frequency variator is for driving the oil cooling blower fan of air compressor, and these two frequency variators are independent of one another on 26S Proteasome Structure and Function; Described control unit is built-in with air compressor system control software design, is the brain controlling whole compressor operation work.
But above-mentioned Frequency Drive Control constituent system components is more, wiring more complicated, makes entire system aesthetic property not enough; Meanwhile, whole Frequency Drive Control system also exists that build is huge, the problem of high expensive.
Summary of the invention
In view of this, the invention provides air compressor Frequency Drive Control integrated machine and air compressor Frequency Drive Control system, with reduce air compressor Frequency Drive Control system volume, reduce system cost and elevator system overall aesthetics.
A kind of air compressor Frequency Drive Control integrated machine, described integrated machine inside being integrated with rectifying unit, buffer resistance, gate-controlled switch, switch driving circuit, energy-storage units, the first inversion unit, the second inversion unit, power frequency transformer, being built-in with the control unit of air compressor system control software design and the busbar voltage testing circuit for measuring DC bus-bar voltage, wherein:
The electric energy output end of described rectifying unit accesses the electrical energy inputs of described energy-storage units after being connected in series the parallel-connection structure be made up of switch contact and the described buffer resistance of described gate-controlled switch;
Electric energy output end described first inversion unit of access of described energy-storage units and the electrical energy inputs of described second inversion unit;
The electric energy output end of described first inversion unit is for connecting the main frame of air compressor; The electric energy output end of described second inversion unit is for connecting the oil cooling blower fan of air compressor;
Control connection is there is respectively in described control unit with described first inversion unit, described second inversion unit, described busbar voltage testing circuit and described switch driving circuit; The control end of gate-controlled switch described in another termination of described switch driving circuit;
The electrical energy inputs of rectifying unit described in a side joint of described power frequency transformer, its second side is used for exporting electric energy to the coil of each magnetic switch in air compressor.
Wherein, described control unit comprises multiple processor, exchanging data with one another between each processor.
Alternatively, described first inversion unit and described inversion unit are built-in with an accessory power supply all separately, these two accessory power supplys except for for its separately belonging to the low-voltage assembly of inversion unit inside power except, also for powering for the low-voltage assembly of described first inversion unit and described second inversion unit outside.
Alternatively, described integrated machine inside is also integrated with: be connected on the direct current reactor between the electric energy output end of described rectification circuit and the electrical energy inputs of described energy-storage units.
Alternatively, described integrated machine inside is also integrated with: be connected to the input phase failure sample circuit between the electrical energy inputs of described rectifying unit and described control unit and/or electric power detection assembly.
Alternatively, described integrated machine inside is also integrated with the voltage selecting circuit between the coil being connected to described power frequency transformer second side and described each magnetic switch, wherein: the secondary side winding of described power frequency transformer leads to multiple tap; Described voltage selecting circuit comprises multiple voltage and selects terminal and multiple gate-controlled switch, described voltage selects the quantity of terminal equal with the quantity of described tap, tap described in each is in parallel after accessing a described voltage selection terminal separately, and point in parallel is again respectively through the coil of the described each magnetic switch of described multiple gate-controlled switch access.
A kind of air compressor Frequency Drive Control system, comprise as above-mentioned any one air compressor Frequency Drive Control integrated machine disclosed, and be arranged on human-computer interaction device that outside and all integrated with the described integrated machine inside control unit of described integrated machine is connected, the first pressure transducer and the first temperature transducer, wherein:
Described first pressure transducer is for obtaining the measured value of the gas pressure of air compressor exhaust duct;
Described first temperature transducer is for obtaining the measured value of handpiece of air compressor oil gas temperature.
Alternatively, described air compressor Frequency Drive Control Operation system setting has the remote control module be connected with described human-computer interaction device, wherein: described remote control module integrates GPRS module and GPS module function, for realizing telecommunication and location.
Alternatively, when air compressor is provided with main frame fan, described air compressor Frequency Drive Control system also comprises: be connected to the circuit of testing the phase sequence between the electrical energy inputs of described rectifying unit and described control unit; And the contactor be connected in the power supply line of described main frame fan, wherein, the break-make of described contactor controls by described control unit.
Alternatively, described human-computer interaction device has the communication interface carrying out communication with the human-computer interaction device in other air compressor Frequency Drive Control systems.
Technological scheme as can be seen from above-mentioned: the basic module of an existing frequency variator at least comprises rectifying unit, buffer resistance, gate-controlled switch, energy-storage units and inversion unit, and the present invention is by design first inversion unit and the second inversion unit common DC bus, thus constructed two equivalent frequency variators when saving one road rectifying unit, buffer resistance, gate-controlled switch and energy-storage units, achieve the object reducing system cost, reduction system bulk by improving assembly comprehensive utilization ratio.Further, the design of integrated machine can also make that level of integrated system is higher, volume is less, wiring is also more succinct; Also just because of without mixed and disorderly wiring, entire system aesthetic property also obtain very large lifting.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of air compressor Frequency Drive Control all-in-one machine structure schematic diagram disclosed by the invention;
Fig. 2 is another air compressor Frequency Drive Control all-in-one machine structure schematic diagram disclosed by the invention;
Fig. 3 is a kind of air compressor Frequency Drive Control system architecture schematic diagram disclosed by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1, the embodiment of the invention discloses a kind of air compressor Frequency Drive Control integrated machine, to reduce the volume of air compressor Frequency Drive Control system, reduce system cost and elevator system overall aesthetics, described integrated machine inside is integrated with rectifying unit 101, buffer resistance R1, gate-controlled switch KM1, switch driving circuit 102, energy-storage units 103, first inversion unit 104, second inversion unit 105, power frequency transformer 204, be built-in with the control unit 106 of air compressor system control software design and the busbar voltage testing circuit 107 for measuring DC bus-bar voltage, wherein:
The electric energy output end of rectifying unit 101 accesses the electrical energy inputs of energy-storage units 103 after being connected in series the parallel-connection structure be made up of switch contact and the buffer resistance R1 of gate-controlled switch KM1;
The electric energy output end of energy-storage units 103 accesses the electrical energy inputs of the first inversion unit 104 and the second inversion unit 105, i.e. the first inversion unit 104 and the second inversion unit 105 common DC bus;
The electric energy output end of the first inversion unit 104 is for connecting the main frame of air compressor; The electric energy output end of the second inversion unit 105 is for connecting the oil cooling blower fan of air compressor;
Control connection is there is respectively in control unit 106 with the first inversion unit 104, second inversion unit 105, busbar voltage testing circuit 107 and switch driving circuit 102; The control end of another termination gate-controlled switch KM1 of switch driving circuit 102;
The electrical energy inputs of a side joint rectifying unit 101 of power frequency transformer 204, its second side is used for exporting electric energy to the coil of each magnetic switch in air compressor.
For convenience of distinguishing, representing major loop with the heavy line of band arrow, representing communication line or weak electric signal loop, the transmission direction of direction of arrow representation signal by the fine line of band arrow in Fig. 1.The working principle of the Frequency Drive Control of air compressor shown in Fig. 1 integrated machine is as follows:
After air compressor start powers on, the 380V threephase AC of input is rectified into direct current through rectifying unit 101, and described direct current is charged to the bus capacitor in energy-storage units 103 by buffer resistance R1; Meanwhile, bus capacitor both end voltage described in busbar voltage testing circuit 107 on-line measurement, and measurement result is sent into control unit 106; Control unit 106 is when detecting that described bus capacitor is charged to predeterminated voltage, the coil being controlled gate-controlled switch KM1 by switch driving circuit 102 obtains electric, coil obtains electric rear generation electromagnetic attraction and promotes or pull the switch contact of gate-controlled switch KM1 to close, buffer resistance R1 is shorted, thus avoid buffer resistance R1 dividing potential drop and cause bus capacitor both end voltage on the low side, wherein:
For there is excessive current-rising-rate after preventing system boot from powering on and burning out device in buffer resistance R1; Energy-storage units 103 comprises described bus capacitor and equalizing resistance, described bus capacitor adopts the series-parallel structure of multiple electrochemical capacitor usually, be mainly used in the energy storage after rectification and filtering, electrochemical capacitor described in each is parallel with a described equalizing resistance, the effect of described equalizing resistance is to utilize voltage divider principle to make each electrochemical capacitor both end voltage impartial, when civil power power-off, described equalizing resistance is also for giving the electric discharge of described bus capacitor.
After the switch contact of gate-controlled switch KM1 is closed, integrated machine starts commencement of commercial operation to drive main frame and the oil cooling blower fan of air compressor, be specially: above-mentioned bus capacitor both end voltage can be applied to the electrical energy inputs of the first inversion unit 104 and the second inversion unit 105 simultaneously, this voltage is also called DC bus-bar voltage, and this circuit connection state is called the first inversion unit 104 and the second inversion unit 105 common DC bus; Based on this circuit connection state, the DC bus-bar voltage that energy-storage units 103 exports under the control of the control unit 106, is converted to AC frequency conversion and exports, drive main frame by the first inversion unit 104; Second inversion unit 105 under the control of the control unit 106 simultaneously, the DC bus-bar voltage that energy-storage units 103 exports converted to AC frequency conversion and export, drive oil cooling blower fan.
The built-in air compressor system control software design of control unit 106 at least comprises switch control logic, main frame inversion control algorithm and blower fan inversion control algorithm, can comprise temperature PID regulator and pressure P ID regulator etc. in addition, wherein:
1) described switch control logic is used for when the magnitude of voltage detecting that busbar voltage testing circuit 107 records reaches described predeterminated voltage, and the switch contact being controlled gate-controlled switch KM1 by switch driving circuit 102 is closed.
2) described main frame inversion control algorithm is used for output frequency and the start and stop by controlling the first inversion unit 104, comes rotating speed and the start and stop of main control system; Meanwhile, described pressure P ID regulator regulates the output frequency of the first inversion unit 104 according to the deviation between the measured value of the gas pressure of air compressor exhaust duct and expected value, if measured value is higher than expected value, engine speed is made to reduce, if measured value is lower than expected value, engine speed is made to increase, to ensure that supply gas pressure is constant; Wherein, the measured value of the gas pressure of described air compressor exhaust duct can be obtained (still see Fig. 1) by the first pressure transducer 203 being positioned at integrated machine outside;
3) described blower fan inversion control algorithm is used for the output frequency by controlling the second inversion unit 105, controls rotating speed and the start and stop of oil cooling blower fan; With this simultaneously, described temperature PID regulator regulates the output frequency of the second inversion unit 105 according to the deviation between the measured value of handpiece of air compressor oil gas temperature and expected value, if measured value is higher than expected value, oil cooling rotation speed of fan is made to increase, if measured value is lower than expected value, oil cooling rotation speed of fan is made to reduce, to ensure that lubricating oil temperature is stabilized in certain limit; Wherein, the measured value of described handpiece of air compressor oil gas temperature can be obtained (still see Fig. 1) by the first temperature transducer 202 being positioned at integrated machine outside.
Staff can be inputted the setting value of integrated machine internal operation parameter (as the operational parameter of pressure P ID regulator, the operational parameter etc. of temperature PID regulator) and input on off control signal etc., to control whole compressor operation work by the human-computer interaction device 201 (still see Fig. 1) being arranged on integrated machine outside; Control unit 106 can also export the actual value of integrated machine internal operation state in real time by human-computer interaction device 201 simultaneously, as the output frequency, the output frequency of the second inversion unit 105, the working time of air compressor etc. of the first inversion unit 104, staff is facilitated to monitor.Wherein, human-computer interaction device 201 can adopt the composite structure of keyboard and display device, also can adopt touch screen, not limit to.
Integrated machine shown in Fig. 1 is the intrasystem nucleus module of air compressor Frequency Drive Control, is arranged on the first pressure transducer 203, first temperature transducer 202 of integrated machine outside, important composition parts that human-computer interaction device 201 belongs to air compressor Frequency Drive Control system equally.
From the description of the above-mentioned structure and working principle to integrated machine shown in Fig. 1, compared to the prior art of employing two 26S Proteasome Structure and Function frequency variators independent of each other, the present embodiment rectifying unit 101, buffer resistance R1, gate-controlled switch KM1, energy-storage units 103 and the first inversion unit 104 drive main frame as basic module, drive oil cooling blower fan with rectifying unit 101, buffer resistance R1, gate-controlled switch KM1, energy-storage units 103 and the second inversion unit 105 as basic module simultaneously.Compared to prior art, the multiplexing rectifying unit 101 of the present embodiment, buffer resistance R1, gate-controlled switch KM1 and energy-storage units 103, make the first inversion unit 104 and the second inversion unit 105 common DC bus, improve assembly comprehensive utilization ratio, contribute to reducing system cost, reducing system bulk.Further, the design of integrated machine, can also make that air compressor Frequency Drive Control level of integrated system is higher, volume is less, wiring is also more succinct; Also just because of without mixed and disorderly wiring, entire system aesthetic property also obtain very large lifting.
Wherein, for ensureing the reliability of power supply, first inversion unit 104, second inversion unit 105 can a built-in accessory power supply separately, and for providing low pressure direct current of voltage regulation for the low-voltage assembly in inversion unit belonging to separately, these two accessory power supplys all get energy from energy-storage units 103.In addition, these two are integrated in accessory power supply in two inversion units respectively except being used for being that all or part of low-voltage assembly of the first inversion unit 104 and the second inversion unit 105 outside is powered, and need not more additionally for it arranges accessory power supply, this by the design of accessory power supply and frequency conversion integrated, make level of integrated system higher, volume is less, connects up more succinct.Illustrate: utilize the accessory power supply in the first inversion unit 104 to power for low-voltage assemblies such as human-computer interaction device 201, first pressure transducers 203; Utilize the low-voltage assemblies such as the accessory power supply in the second inversion unit 105 is switch driving circuit 102, busbar voltage testing circuit 107, control unit 106 to power simultaneously.
Wherein, control unit 106 only can adopt a processor, but a processor work load is heavier, and arithmetic speed is slow, and if directly being replaced to a high-performance processor exists the too high problem of high-performance processor purchase cost; Therefore, the present embodiment recommends control unit 106 to adopt multiple processor, exchanging data with one another between each processor, its advantage is the work load that can reduce single processor, improve the arithmetic speed of single processor, and the total purchase cost of described multiple processor will lower than the purchase cost of a high-performance processor.
Alternatively, still see Fig. 1, described integrated machine inside is also integrated with: be connected on the direct current reactor L1 between the electric energy output end of rectifying unit 101 and the electrical energy inputs of energy-storage units 103, for reducing interchange input harmonics, improves ac input power factor value.
Alternatively, still see Fig. 1, described integrated machine inside is also integrated with the voltage selecting circuit 110 between second side and the coil of described each magnetic switch being connected to power frequency transformer 204, wherein: voltage selecting circuit 110, under manual operation, selects power frequency transformer 204 to carry out the voltage swing of powering to the coil of described each magnetic switch.Concrete, the secondary side winding of power frequency transformer 204 leads to multiple tap, voltage selecting circuit 110 comprises multiple voltage and selects terminal and multiple gate-controlled switch, described voltage selects the quantity of terminal equal with the quantity of described tap, tap described in each is in parallel after selecting terminal each via a described voltage, and point in parallel is again respectively through the coil of the described each magnetic switch of described multiple gate-controlled switch access; When some voltage selects terminal to be strobed, the voltage of the tap that this voltage selects terminal to connect just can export to the coil of described each magnetic switch.Illustrate:
Conventional solenoid winding electric pressure is 220V, 110V etc., corresponding, the secondary side winding of power frequency transformer 204 leads to 2 taps, tap voltage is 220V respectively, 110V, voltage selecting circuit 110 has these two voltages of K220 and K110 and selects terminal, staff is according to the solenoid winding electric pressure of the current employing of air compressor, select terminals to choose power frequency transformer 204 by these two voltages of manual operation to be to provide the alternating voltage of 220V or 110V (Fig. 1 only illustrates two magnetic switch exemplarily to each magnetic switch, magnetic switch #1 and magnetic switch #2 respectively) coil power supply, when the current employing of air compressor be the magnetic switch of 220V coil voltage grade time, just manual gating K220, disconnect K110, to be switched to the alternating voltage current supply circuit of 220V, when the current employing of air compressor be the magnetic switch of 110V coil voltage grade time, just manual gating K110, disconnect K220, to be switched to the alternating voltage current supply circuit of 110V, expand the Applicable scope of described integrated machine.
Alternatively, described air compressor Frequency Drive Control system is also provided with: be connected to the input phase failure sample circuit 109 between the electrical energy inputs (i.e. 380V threephase AC inlet wire) of rectifying unit 101 and control unit 106.The 380V that input phase failure sample circuit 109 inputs for on-line measurement exchanges and inputs whether phase shortage, and measurement result sends into control unit 106.Corresponding; the built-in air compressor system control software design of control unit 106 also comprises phase shortage control logic; described phase shortage control logic is used for when detecting that 380V exchanges input phase failure, triggers human-computer interaction device 201 and exports corresponding information warning, control the first inversion unit 104 simultaneously and shut down.Input phase failure sample circuit 109 is integrated in integrated machine inside usually, as shown in Figure 2.
Alternatively, described air compressor Frequency Drive Control system is also provided with: be connected to the electric power detection assembly 111 between the electrical energy inputs of rectifying unit 101 and control unit 106.The AC-input voltage electric current of electric power detection assembly 111 for on-line measurement air compressor and the parameter such as active power, apparen power of calculating air compressor, measurement result and result of calculation send into control unit 106, control unit 106 shows above-mentioned parameter in real time by human-computer interaction device 106, facilitates staff's Real-Time Monitoring.The present embodiment recommends electric power detection assembly 111 to be integrated in integrated machine inside, to improve the level of integration of described air compressor Frequency Drive Control system, as shown in Figure 2; Certainly, when integrated machine inner space is more nervous, electric power detection assembly 111 also can be arranged on integrated machine outside.In addition, electric power detection module 111 is as a low-voltage assembly, and the low pressure direct current of voltage regulation needed for its work can be provided by the accessory power supply in the first inversion unit 104, but does not limit to.
Alternatively; first inversion unit 104 inside is except having the assembly such as inverter circuit, IGBT drive circuit; also fan, fan power supply circuits and the three-temperature sensor for on-line measurement first inversion unit 104 inside temperature of accessible site for dispelling the heat for the first inversion unit 104 internal component; the measurement result of three-temperature sensor sends into control unit 106, performs overheat protector as control unit 106, regulates the foundation of rotation speed of the fan and on off control.Corresponding, the second inversion unit 105 also can adopt same indoor design.
In addition, the embodiment of the invention also discloses a kind of air compressor Frequency Drive Control system, with reduce air compressor Frequency Drive Control system volume, reduce system cost and elevator system overall aesthetics, comprise above-mentioned any one Frequency Drive Control integrated machine disclosed, and be arranged on human-computer interaction device 201, first pressure transducer 203 and the first temperature transducer 202 that outside and inner integrated with the described integrated machine control unit 106 of described integrated machine is connected.The structure of human-computer interaction device 201, first pressure transducer 203 and the first temperature transducer 202 and function, see the aforementioned text description for integrated machine and accompanying drawing 1-2, repeat no more herein.
Alternatively, described air compressor Frequency Drive Control system is also provided with the remote control module 108 be connected with human-computer interaction device 201.Remote control module 108 collects GPS (GlobalPositioningSystem, global positioning system) module and GPRS (GeneralPacketRadioService, general packet radio service technology) functions of modules in one, for realizing telecommunication and location, concrete: the long-range real-time location of upper-position unit to air compressor can be realized, and the frequency of remote monitoring compressor operation, exhaust pressure, oil gas temperature, working time, electricity etc., also can the temperature of remote setting air compressor, pressure, add unloading, parameters such as PID and realize long-range on off control etc., thus the remote monitoring achieved described air compressor Frequency Drive Control system and control.The present embodiment recommends remote control module 108 to be integrated in integrated machine inside, to improve the level of integration of described air compressor Frequency Drive Control system, as shown in Figure 3.Certainly, when integrated machine inner space is more nervous, remote control module 108 also can be arranged on integrated machine outside.In addition, remote control module 108 is as a low-voltage assembly, and the low pressure direct current of voltage regulation needed for its work can be provided by the accessory power supply in the first inversion unit 104, but does not limit to.
Alternatively, see Fig. 3, air compressor is provided with the main frame fan for dispelling the heat for main frame, under described main frame fan and main frame out-of-alignment situation, described air compressor Frequency Drive Control system is also provided with: be connected to the circuit of testing the phase sequence 112 between the electrical energy inputs of rectifying unit 101 and control unit 106, and the present embodiment is recommended circuit of testing the phase sequence 112 to be integrated in integrated machine inside, to improve the level of integration of described air compressor Frequency Drive Control system, as shown in Figure 3, but do not limit to; Simultaneously, described air compressor Frequency Drive Control system also comprises: (contactor KM2 also belongs to one of them magnetic switch of air compressor to the contactor KM2 being connected in the power supply line of described main frame fan, the present embodiment recommends contactor KM2 to be arranged on integrated machine outside, but does not limit to).The controlled unit of break-make 106 of contactor KM2 controls (circuit connecting relation between the control end of contactor KM2 and control unit 106 is not shown in Figure 3).Its working principle is as follows:
When contactor KM2 closes, described main frame fan is started working.Circuit of testing the phase sequence 112 exchanges input R, S, T-phase sequence for detecting, and measurement result sends into control unit 106; Under described main frame fan and main frame out-of-alignment situation; if user connects R, S, T-phase sequence instead, described main frame fan can reverse, and cannot dispel the heat to main frame; now control unit 106 control contactor KM2 disconnects, and to avoid, main frame is overheated to be burnt in main control system shutdown simultaneously.In addition, also the hardware circuit of circuit of testing the phase sequence 112 and input phase failure testing circuit 109 can be merged into a circuit, software judge the positive and negative and whether phase shortage of phase sequence.
Alternatively, still see Fig. 3, described air compressor Frequency Drive Control system also comprises: be arranged on the outside and safety fuse cutout F1 be in series with contactor KM2 of described integrated machine.Safety fuse cutout F1 is used for preventing from causing occurring big current when external main frame fan because of wrong line, and then the phenomenon causing system to operate a switch.
Alternatively, still see Fig. 3, described air compressor Frequency Drive Control system also comprises: be arranged on integrated machine outside and the second temperature transducer 114 be connected with control unit 106.Second temperature transducer 114 is for the main frame temperature of on-line measurement air compressor, and measurement result sends into control unit 106, to provide corresponding early warning and warning message when temperature reaches predefined value.
Alternatively, still see Fig. 3, described air compressor Frequency Drive Control system also comprises: be arranged on integrated machine outside and the second pressure transducer 115 be connected with control unit 106.Second pressure transducer 115 is for the pressure in the oil gas cylinder of on-line measurement air compressor, and measurement result sends into control unit 106, to provide corresponding early warning and warning message when pressure reaches predefined value.
Alternatively, still see Fig. 3, described air compressor Frequency Drive Control system also comprises: be arranged on integrated machine outside and the switching input module 116 be connected with control unit 106, switching input module 116 comprises the switching input module such as air filter blocking, oil filter blocking, essence point device blocking, separator blocking, facilitating control unit 106 to send warning message in time when monitoring air filter, oil screen, the smart point of blocking such as device, separator, preventing unexpected generation.
Alternatively, human-computer interaction device 106 also has the communication interface carrying out data interaction with the human-computer interaction device in other air compressor Frequency Drive Control systems, as RS485 communication interface; Under the occasion that gas consumption is larger, need multiple air compressors simultaneously air feed, now can adopt an air compressor hosted, other air compressors do from machine, carry out data interaction by described communication interface between each air compressor and realize joint control.
Under normal circumstances, described air compressor Frequency Drive Control system also has: be arranged on the emergency stop switch that described integrated machine is outside, be connected with control unit 106.Staff in case of emergency presses emergency stop switch, and control unit 106 controls the main shut-down system (the not shown described emergency stop switch of Fig. 3) of air compressor when emergency stop switch is pressed.
In sum, the basic module of an existing frequency variator at least comprises rectifying unit, buffer resistance, gate-controlled switch, energy-storage units and inversion unit, and the present invention is by design first inversion unit and the second inversion unit common DC bus, thus constructed two equivalent frequency variators when saving one road rectifying unit, buffer resistance, gate-controlled switch and energy-storage units, achieve the object reducing system cost, reduction system bulk by improving assembly comprehensive utilization ratio.Further, the design of integrated machine can also make that level of integrated system is higher, volume is less, wiring is also more succinct; Also just because of without mixed and disorderly wiring, entire system aesthetic property also obtain very large lifting.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from the spirit or scope of the embodiment of the present invention, can realize in other embodiments.Therefore, the embodiment of the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. an air compressor Frequency Drive Control integrated machine, it is characterized in that, described integrated machine inside being integrated with rectifying unit, buffer resistance, gate-controlled switch, switch driving circuit, energy-storage units, the first inversion unit, the second inversion unit, power frequency transformer, being built-in with the control unit of air compressor system control software design and the busbar voltage testing circuit for measuring DC bus-bar voltage, wherein:
The electric energy output end of described rectifying unit accesses the electrical energy inputs of described energy-storage units after being connected in series the parallel-connection structure be made up of switch contact and the described buffer resistance of described gate-controlled switch;
Electric energy output end described first inversion unit of access of described energy-storage units and the electrical energy inputs of described second inversion unit;
The electric energy output end of described first inversion unit is for connecting the main frame of air compressor; The electric energy output end of described second inversion unit is for connecting the oil cooling blower fan of air compressor;
Control connection is there is respectively in described control unit with described first inversion unit, described second inversion unit, described busbar voltage testing circuit and described switch driving circuit; The control end of gate-controlled switch described in another termination of described switch driving circuit;
The electrical energy inputs of rectifying unit described in a side joint of described power frequency transformer, its second side is used for exporting electric energy to the coil of each magnetic switch in air compressor.
2. integrated machine according to claim 1, is characterized in that, described control unit comprises multiple processor, exchanging data with one another between each processor.
3. integrated machine according to claim 1, it is characterized in that, described first inversion unit and described inversion unit are built-in with an accessory power supply all separately, these two accessory power supplys except for for its separately belonging to the low-voltage assembly of inversion unit inside power except, also for powering for the low-voltage assembly of described first inversion unit and described second inversion unit outside.
4. integrated machine according to claim 1, is characterized in that, described integrated machine inside is also integrated with: be connected on the direct current reactor between the electric energy output end of described rectification circuit and the electrical energy inputs of described energy-storage units.
5. integrated machine according to claim 1, is characterized in that, described integrated machine inside is also integrated with: be connected to the input phase failure sample circuit between the electrical energy inputs of described rectifying unit and described control unit and/or electric power detection assembly.
6. integrated machine according to claim 1, it is characterized in that, described integrated machine inside is also integrated with the voltage selecting circuit between the coil being connected to described power frequency transformer second side and described each magnetic switch, wherein: the secondary side winding of described power frequency transformer leads to multiple tap; Described voltage selecting circuit comprises multiple voltage and selects terminal and multiple gate-controlled switch, described voltage selects the quantity of terminal equal with the quantity of described tap, tap described in each is in parallel after accessing a described voltage selection terminal separately, and point in parallel is again respectively through the coil of the described each magnetic switch of described multiple gate-controlled switch access.
7. an air compressor Frequency Drive Control system, it is characterized in that, comprise the air compressor Frequency Drive Control integrated machine according to any one of claim 1-6, and be arranged on human-computer interaction device that outside and all integrated with the described integrated machine inside control unit of described integrated machine is connected, the first pressure transducer and the first temperature transducer, wherein:
Described first pressure transducer is for obtaining the measured value of the gas pressure of air compressor exhaust duct;
Described first temperature transducer is for obtaining the measured value of handpiece of air compressor oil gas temperature.
8. air compressor Frequency Drive Control system according to claim 7, it is characterized in that, described air compressor Frequency Drive Control Operation system setting has the remote control module be connected with described human-computer interaction device, wherein: described remote control module integrates GPRS module and GPS module function, for realizing telecommunication and location.
9. air compressor Frequency Drive Control system according to claim 7, it is characterized in that, air compressor is provided with main frame fan, and described air compressor Frequency Drive Control system also comprises: be connected to the circuit of testing the phase sequence between the electrical energy inputs of described rectifying unit and described control unit;
And the contactor be connected in the power supply line of described main frame fan, wherein, the break-make of described contactor controls by described control unit.
10. air compressor Frequency Drive Control system according to claim 7, is characterized in that, described human-computer interaction device has the communication interface carrying out communication with the human-computer interaction device in other air compressor Frequency Drive Control systems.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| CN109388094A (en) * | 2017-08-04 | 2019-02-26 | 台达电子工业股份有限公司 | Control system of oil pumping unit |
| 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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1030561A (en) * | 1996-05-08 | 1998-02-03 | Lg Electron Inc | Driving device for 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 | A Variable Frequency Power Supply Based on Digital Signal Processor Control |
| 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 |
-
2015
- 2015-12-31 CN CN201511030066.6A patent/CN105508230B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1030561A (en) * | 1996-05-08 | 1998-02-03 | Lg Electron Inc | Driving device for 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 | A Variable Frequency Power Supply Based on Digital Signal Processor Control |
| 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 |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109388094A (en) * | 2017-08-04 | 2019-02-26 | 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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