CN106026845A - Fan drive device, air-conditioning system and fan drive method of air-conditioning system - Google Patents
Fan drive device, air-conditioning system and fan drive method of air-conditioning system Download PDFInfo
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- CN106026845A CN106026845A CN201610463903.2A CN201610463903A CN106026845A CN 106026845 A CN106026845 A CN 106026845A CN 201610463903 A CN201610463903 A CN 201610463903A CN 106026845 A CN106026845 A CN 106026845A
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- blower fan
- circuit
- inverter circuit
- ipm
- controller
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a fan drive device, an air-conditioning system and a fan drive method for the air-conditioning system. The device comprises a controller and an IPM inverter circuit, wherein the controller is used for identifying the types of fans and controlling the IPM inverter circuit according to the obtained identification result; and the IPM inverter circuit is connected with the fans and the controller separately and is used for carrying out adaptive driving on different fans in the identification result under the control of the controller. According to the fan drive device, the defects of a complicated structure, high cost, a large occupied space and the like in the prior art can be overcome; and the beneficial effects of simplicity in structure, low cost and a small occupied space are achieved.
Description
Technical field
The invention belongs to air-conditioning technical field, be specifically related to a kind of fan drive device, air conditioning system and wind thereof
Machine driving method, particularly relates to driving means, air conditioning system and the wind thereof of a kind of alternating current-direct current blower fan common hardware
Machine driving method.
Background technology
Air-conditioner i.e. air conditioner, can be by artificial means, to the temperature of surrounding air in building/structures
The parameters such as degree, humidity, cleanliness factor, speed are adjusted and control.
In the control to indoor and outdoor blower fan of the existing air-conditioner, usually, AC blower fan all uses Control,
DC fan uses IPM (Intelligent Power Module, SPM) inverter circuit to control.
Under the application scenario of the unpredictable blower fan type such as after sale, same controller needs to load onto control exchange in advance
The relay of blower fan and the three-phase IPM circuit of control DC fan, in addition it is also necessary to patch end by different blower fans
Son prevents wrong plug, needs higher cost and bigger space.
In prior art, have that structure is complicated, cost high and the defect such as big that takes up room.
Summary of the invention
It is an object of the invention to, for drawbacks described above, it is provided that a kind of fan drive device, air conditioning system and
Its blower fan driving method, needs different drive circuits to carry out solving in prior art different types of blower fan
Drive and then cause structure complicated, reaching the effect of simple in construction.
The present invention provides a kind of fan drive device, including: controller and IPM inverter circuit, wherein, institute
State controller, for identifying the type of described blower fan, and according to the recognition result obtained to described IPM inversion
Circuit is controlled；Described IPM inverter circuit, is connected to described blower fan and described controller, is used for
Under the control of described controller, blower fan different types of in described recognition result is carried out adaptive driving.
Alternatively, also include: current sampling circuit；Described current sampling circuit, is connected to described IPM inverse
Between power transformation road and described controller, for the input side electric current of described IPM inverter circuit is sampled；
Described controller includes: fixed voltage output module, resistance calculations module and type judging module；Wherein,
Described fixed voltage output module, is connected to described IPM inverter circuit, is used for controlling described IPM inversion
Circuit exports default fixed voltage between each line of described motor each phase output lead；Described resistance calculations module,
For receiving the current sample information that described current sampling circuit sends, carry out according to described current sample information
Calculate, to obtain each line resistance of described each phase output lead；Described type judging module, is connected to described
Resistance calculations module, for according to calculated described each line resistance, sentences according to default rule
Disconnected, to obtain the type of described blower fan.
Alternatively, described IPM inverter circuit, including: at least three-phase inversion branch road；Wherein, described at least
Three-phase inversion branch circuit parallel connection and adaptive switching can be carried out under the control of described controller；When described inhomogeneity
When the blower fan of type includes AC blower fan, described at least three-phase inversion branch road is adapted and switches to biphase inverter circuit,
Output single-phase alternating current drives described AC blower fan；Or, when described different types of blower fan includes direct current wind
During machine, described at least three-phase inversion branch road is adapted and switches to three-phase inverting circuit, and output three-phase alternating current drives
Dynamic described DC fan.
Alternatively, wherein, when described AC blower fan includes that more than one drives gear, described at least three-phase
Inversion branch road is adapted and switches to the biphase inverter circuit adaptive with described drive bit quantity, by corresponding institute
State biphase inverter circuit correspondence and drive the respective drive gear of described AC blower fan.
Alternatively, also include: blower fan plug terminal；Described blower fan plug terminal, patches described for adaptation
Different types of blower fan.
Alternatively, also including: rectification circuit and pfc circuit, wherein, described rectification circuit, for phase
The electric energy answering feeder ear to provide carries out rectification process；Described pfc circuit, is connected to described rectification circuit and institute
Stating between IPM inverter circuit, the electric energy after processing described rectifier circuit rectifies is carried out at capability correction
Reason.
Alternatively, also include: filter circuit；Wherein, described filter circuit, it is connected to described pfc circuit
And between described IPM inverter circuit, the electric energy after processing described pfc circuit capability correction is carried out
Filtering Processing.
Alternatively, also include: voltage sampling circuit that described voltage sampling circuit is connected to described IPM inverse
Between input side and the described controller on power transformation road, for the input side voltage of described IPM inverter circuit is entered
Row sampling, to realize being monitored described voltage.
Alternatively, also include: boostrap circuit (118)；Wherein, described boostrap circuit, it is connected to described
IPM inverter circuit, for carrying out adaptive output to the outlet side voltage of described IPM inverter circuit.
Alternatively, described controller, including: digital signal processor (DSP).
Matching with said apparatus, another aspect of the present invention provides a kind of air conditioning system, including: the above
Fan drive device.
Matching with above-mentioned air conditioning system, further aspect of the present invention provides the blower fan driving side of a kind of air conditioning system
Method, including: by described controller, identify the type of blower fan in above-described air conditioning system, to obtain
Corresponding recognition result；According to described recognition result, by described IPM inverter circuit, to described air-conditioning system
In system, different types of blower fan carries out adaptive driving.
Alternatively, identify the type of blower fan in described air conditioning system, including: each to described each phase output lead
Default fixed voltage is exported between line；After exporting described fixed voltage, described IPM inverter circuit is carried out
Current sample, is calculated by described current sample feedack, to obtain described each phase output lead
Each line resistance；According to calculated described each line resistance, judge according to default rule, with
Obtain the type of described blower fan.
Alternatively, blower fan different types of in described air conditioning system is driven, including: when described difference
When the blower fan of type includes AC blower fan, described IPM inverter circuit adaptation is switched to biphase inverter circuit,
Output single-phase alternating current drives described AC blower fan；Or, when described different types of blower fan includes direct current wind
During machine, described IPM inverter circuit adaptation is switched to three-phase inverting circuit, export three-phase alternating current electric drive institute
State DC fan.
The solution of the present invention, directly uses a three-phase IPM inverter circuit to drive different types of alternating current-direct current wind
Machine (i.e. shares a three-phase IPM inverter circuit and drives AC and DC blower fan), it is achieved alternating current-direct current blower fan is altogether
By the driving of hardware, simple in construction, reliability is high.
Further, the solution of the present invention, it is possible to achieve blower fan type identifies (such as: share same automatically
Blower fan plug terminal, blower fan type identifies automatically), share a three-phase IPM inverter circuit and drive alternating current-direct current
Blower fan；Can significantly reduce cost and the sky of the unpredictable application scenario of blower fan type (as after sale) controller
Between.Wherein, this blower fan plug terminal, can be DC fan port.
Further, the solution of the present invention, in the occasion of the unpredictable blower fan type such as after sale, when blower fan plug-in mounting
(such as: on the mainboard of controller, be generally provided with a needle stand, blower fan is arranged to controller
There is the needle stand one_to_one corresponding of a binding post, this binding post and mainboard, during installation, by the wiring of blower fan
Terminal is inserted on mainboard needle stand) upper time, controller is by exporting specific voltage (such as: output certain electric
Pressure, is not output fixed voltage；But the voltage that controller anticipated that, so could be according to following samples
To current value calculate the resistance between line or inductance value), the data fed back by current sample are calculated and judge
The blower fan going out plug-in mounting is DC fan or AC blower fan.When blower fan is AC blower fan, controller passes through
Biphase inverter circuit in IPM becomes single phase ac electric drive AC blower fan DC inverter；When blower fan is straight
During flow fan, controller becomes three-phase alternating current electric drive straight DC inverter by the three-phase inverting circuit of IPM
Flow fan.
Thus, the solution of the present invention, utilize a three-phase IPM inverter circuit to drive different types of blower fan,
Solving different types of blower fan in prior art needs different drive circuits be driven and then cause structure
Complicated problem, thus, overcome structure complexity in prior art, cost high and the big defect that takes up room,
Realize simple in construction, low cost and the little beneficial effect that takes up room.
Other features and advantages of the present invention will illustrate in the following description, and, partly from explanation
Book becomes apparent, or understands by implementing the present invention.
Below by drawings and Examples, technical scheme is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the fan drive device of the present invention；
Fig. 2 is the internal structure schematic diagram of an embodiment of the alternating-current fan driving circuit in assembly of the invention；
Fig. 3 is the internal structure schematic diagram of an embodiment of the DC fan drive circuit in assembly of the invention；
Fig. 4 is the internal structure schematic diagram of an embodiment of AC blower fan in assembly of the invention；
Fig. 5 is the internal structure schematic diagram of an embodiment of DC fan in assembly of the invention；
The operation principle schematic diagram of one embodiment of the air conditioning system of Fig. 6 present invention；
The flow chart of one embodiment of the blower fan driving method of the air conditioning system of Fig. 7 present invention；
The flow chart of one embodiment of the method middle controller identifying processing of Fig. 8 present invention.
In conjunction with accompanying drawing, in the embodiment of the present invention, reference is as follows:
102-controller；1022-fixed voltage output module；1024-resistance calculations module；1026-type is sentenced
Disconnected module；104-IPM inverter circuit；1040-inversion branch road；The biphase inverter circuit of 1042-；1044-three-phase
Inverter circuit；106-blower fan；108-rectification circuit；110-PFC circuit；112-filter circuit；114-voltage
Sample circuit；116-current sampling circuit；118-boostrap circuit.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, specifically real below in conjunction with the present invention
Execute example and correspondingly accompanying drawing technical solution of the present invention is clearly and completely described.Obviously, described
Embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the enforcement in the present invention
Example, the every other enforcement that those of ordinary skill in the art are obtained under not making creative work premise
Example, broadly falls into the scope of protection of the invention.
According to embodiments of the invention, it is provided that a kind of fan drive device, the wind of the present invention as shown in Figure 1
The structural representation of one embodiment of machine actuating device.This fan drive device includes: controller 102 and IPM
Inverter circuit 104.
In one embodiment, described controller 102, for identifying the type of described blower fan 106, and
According to the recognition result obtained, described IPM inverter circuit 104 is controlled.
In one example, described controller 102, may include that digital signal processor (DSP).
Such as: the IPM inverter circuit of existing driving DC fan can be utilized, when blower fan (such as: blower fan
106), when receiving U, V, W three-phase output lead of IPM inverter circuit, controller is (such as: controller
102) start to detect blower fan type.
Such as: when blower fan is inserted on controller, controller, by exporting specific voltage, passes through electric current
The data calculating of sampling feedback judges that the blower fan of plug-in mounting is DC fan or AC blower fan, it is achieved fan-type
Type identifies (such as: alternating current-direct current blower fan can share same blower fan plug terminal, it is possible to by this automatically
Blower fan plug terminal realizes the automatic identification of blower fan type).
Thus, by controller, blower fan type is identified, thus provides for driving based on recognition result
Reliable basis, mode of operation is simple, good reliability.
Alternatively, in conjunction with controller 102, it is also possible to including: current sampling circuit 116；Described electric current is adopted
Sample circuit 116, is connected between described IPM inverter circuit 104 and described controller 102, for institute
The input side electric current stating IPM inverter circuit 104 is sampled.
Correspondingly, described controller 102 identifies the type of described blower fan 106, including: fixed voltage exports
Module 1022, resistance calculations module 1024 and type judging module 1026.
Wherein, described fixed voltage output module 1022, it is connected to described IPM inverter circuit 104, is used for
Control described IPM inverter circuit 104 between each line of described motor each phase output lead, export default fixing electricity
Pressure.Such as: when described blower fan 106 is connected to each phase output lead of described IPM inverter circuit 104, control
Make described IPM inverter circuit 104 and export default fixed voltage between each line of described each phase output lead.Its
In, controller 102 is that it is the most directly powered for controlling the logic of whole system and operation, is to control
The electric power system of system is powered.
Such as: the feature of alternating current-direct current blower fan can be utilized, when identifying blower fan type, to IPM inverter circuit
U, V, W three-phase output lead each line between export fixing voltage.
Described resistance calculations module 1024, for receiving the current sample that described current sampling circuit 116 sends
Information, calculates according to described current sample information, to obtain each line resistance of described each phase output lead.
Such as: can export fixing between each line to U, V, W three-phase output lead of IPM inverter circuit
Voltage after, by current sample feedack, calculate U, V, W three-phase of IPM inverter circuit
Each line resistance of output lead.
In one example, it is also possible to by calculating line resistance, calculating the calculating sides such as each phase winding inductance value
Formula, draws blower fan type.
Described type judging module 1026, is connected to described resistance calculations module 1024, for according to calculating
The described each line resistance obtained is (such as: each line of U, V, W three-phase output lead of IPM inverter circuit
Between resistance), judge according to default rule, to obtain the type of described blower fan 106.
Thus, by the way of exporting fixed voltage between each line of IPM inverter circuit each phase output lead, enter
Row current sample after obtaining its feedback information, calculates and judges, determining current blower fan type, operation
Mode is simple, safety, and reliability is high, accuracy is good.
In one embodiment, described IPM inverter circuit 104, it is connected to described blower fan 106 He
Described controller 102, under the control of described controller 102, to inhomogeneity in described recognition result
The blower fan 106 of type carries out adaptive driving.
Alternatively, described IPM inverter circuit 104, including: at least three-phase inversion branch road.Wherein, described
At least three-phase inversion branch circuit parallel connection and adaptive switching can be carried out under the control of described controller 102.
Such as: IPM inverter circuit 104, device for power switching and drive circuit can be integrated,
Overvoltage, overcurrent and the failure detector circuit such as overheated can also be integrated with, and detection signal can be delivered to control
Device processed.IPM inverter circuit 104, can by the gate drive circuit of the tube core of high-speed low-power-consumption and optimization with
And fast protection circuit is constituted, even if there is load accident situation or improper use, it is also ensured that IPM self is not
It is damaged.Alternatively, IPM inverter circuit 104 generally uses IGBT as power switch component, inside
Integrated current sensors and the integrated morphology of drive circuit.
Such as: three-phase inverting circuit can be used, the switching of blower fan type is carried out.
Such as: the gear of AC blower fan is not necessarily limited in the blower fan of two gears, one grade of blower fan can also make
For three-phase inverting circuit.
Such as: for AC blower fan more than third gear, binding post typically can be more than DC fan, by connecing
The effect that line terminals is distinguished can be changed.
In an object lesson, after recognizing blower fan type, it is possible to use existing IPM inverter circuit comes
Drive corresponding blower fan, i.e. share a three-phase IPM inverter circuit and drive alternating current-direct current blower fan.
In an object lesson, see the example shown in Fig. 2 and Fig. 3, three-phase inversion branch road, can wrap
Include: the first phase inversion branch road being made up of an IGBT pipe G1 and the 2nd IGBT pipe G2, by the 3rd IGBT
The second phase inversion branch road that pipe G3 and the 4th IGBT pipe G4 are constituted, and the 5th IGBT pipe G5 and the
The third phase inversion branch road (such as: third phase inversion branch road 1040) that six IGBT pipe G6 are constituted.
In one example, include that AC blower fan is (shown in Figure 4 when described different types of blower fan 106
Example) time, described at least three-phase inversion branch road is adapted and switches to biphase inverter circuit 1042 (to see figure
Example shown in 2), output single-phase alternating current drives described AC blower fan.
Such as: when blower fan is AC blower fan, controller is by the biphase inverter circuit in IPM inverter circuit
DC inverter is become single phase ac electric drive AC blower fan.
More alternatively, when described AC blower fan includes that more than one drives gear, described at least three-phase inversion
Branch road is adapted and switches to the biphase inverter circuit 1042 adaptive with described drive bit quantity, by corresponding institute
State the corresponding respective drive gear driving described AC blower fan of biphase inverter circuit 1042.
Wherein, generally the input mode of DC fan is the more, during driving, typically of three-phase input
Can share and one grade or the AC blower fan of two grades.It addition, AC blower fan also needs to the input of a zero line.
Thus, by switching the biphase inverter circuit obtained based at least three-phase inversion Tributary Adaptation, to exchange
The different driving gear of blower fan carries out corresponding driving, is conducive to improving the versatility that alternating current-direct current common hardware drives
And reliability.
Such as: as in figure 2 it is shown, when the driving gear of AC blower fan is two grades, can use G1, G2,
G3, G4 constitute a biphase inverter circuit drive AC blower fan wherein a grade, it is also possible to G1, G2,
Another biphase inverter circuit that G5, G6 are constituted drives other one grade of AC blower fan.
Such as: such as: drive gear when being 4, the number of phases of inversion branch road can be at least 4 (such as:
Branch road 1, branch road 2, branch road 3, branch road 4).4 inversion branch roads can switch to 6 biphase inversions and prop up
Road (12,13,14,23,24,34).
In one example, include that DC fan is (shown in Figure 5 when described different types of blower fan 106
Example) time, described at least three-phase inversion branch road is adapted and switches to three-phase inverting circuit 1044 (to see figure
Example shown in 3), export DC fan described in three-phase alternating current electric drive.
Such as: when blower fan is DC fan, the controller three-phase inverting circuit handle by IPM inverter circuit
DC inverter becomes three-phase alternating current electric drive DC fan.
Such as: as shown in Figure 3, it is possible to use three contraries that G1, G2, G3, G4, G5, G6 are constituted
Power transformation road drives DC fan.
Thus, the adaptive of IPM inverter circuit is switched based on blower fan type by controller, it is possible to achieve hand over
The driving of DC fan common hardware, drives process safety, reliable, highly versatile.
In an optional embodiment, in conjunction with controller 102 and IPM inverter circuit 104, it is also possible to bag
Include: blower fan plug terminal.
In one example, described blower fan plug terminal, patch described different types of blower fan 106 for adaptation.
Wherein, blower fan plug terminal, can be the connector of blower fan and air-conditioning, i.e. IPM inverter circuit and blower fan
Connector.
Such as: blower fan binding post can be passed through, be inserted to comprise controller 102 by ac/dc blower fan
Controller mainboard (such as: this controller mainboard, controller 102 and peripheral circuit can be included) on.
Thus, by shared blower fan binding post, can be at the hardware configuration of simplification fan drive device
On the basis of, it is achieved reliably patching of alternating current-direct current blower fan, property easy to use substantially increases.
Visible, by the controller identification to blower fan type, and by the controller control to IPM inverter circuit
System, it is achieved the driving of alternating current-direct current blower fan common hardware so that the structure of fan drive device is greatly simplified,
And reliability height, low cost, take up room little.
In an optional embodiment, in conjunction with controller 102 and IPM inverter circuit 104, it is also possible to bag
Include: rectification circuit 108 and PFC (Power Factor Correction, PFC) circuit 110.
In one example, described rectification circuit 108, for carrying corresponding feeder ear (such as: civil power)
The electric energy of confession carries out rectification process.
In one example, described pfc circuit 110, it is connected to described rectification circuit 108 and described IPM
Between inverter circuit 104, the electric energy after processing described rectification circuit 108 rectification carries out capability correction
Process.
Thus, by being used in combination of rectification circuit and pfc circuit, so that input is to IPM inversion
The unidirectional current of circuit is more stable, more reliable, is conducive to promoting the safety driving alternating current-direct current blower fan.
In a more optional embodiment, combined with rectifying circuit 108 and pfc circuit 110, it is also possible to
Including: filter circuit 112.
In one example, described filter circuit 112, described pfc circuit 110 can be connected to described
Between IPM inverter circuit 104, the electric energy after processing described pfc circuit 110 capability correction is carried out
Filtering Processing.
Such as: filter circuit 112, filter capacitor can be included.Described filter capacitor is parallel to described IPM
The input side of inverter circuit 104.
Thus, by filter circuit, can promote further input to IPM inverter circuit galvanic surely
Qualitative and safety.
In an optional embodiment, in conjunction with controller 102 and IPM inverter circuit 104, it is also possible to bag
Include: voltage sampling circuit 114.
In one example, described voltage sampling circuit 114, it is connected to described IPM inverter circuit 104
Between input side and described controller 102, for the input side voltage of described IPM inverter circuit 104 is entered
Row sampling, to realize being monitored described voltage.
Such as: this voltage sampling circuit, primarily can be used for calculating output voltage, typically can be by input
The output duty cycle of voltage and IPM inverter circuit obtains output voltage values.
Correspondingly, described controller 102, it is additionally operable to the input side voltage to described IPM inverter circuit 104
And/or input side electric current is monitored and carries out resistance calculations based on the electric current sampled.
Thus, by voltage sampling circuit, can promote reliability that alternating current-direct current blower fan common hardware drives and
Safety, is also beneficial to extend its function.
In an optional embodiment, in conjunction with IPM inverter circuit 104, it is also possible to including: boostrap circuit
118。
In one example, described boostrap circuit 118, it is connected to described IPM inverter circuit 104, is used for
The outlet side voltage of described IPM inverter circuit 104 is carried out adaptive output.
Thus, thus, by the setting of boostrap circuit, the output electricity of IPM inverter circuit can adaptive be adjusted
Pressure, to improve its reliability and versatility.
Through substantial amounts of verification experimental verification, use the technical scheme of the present embodiment, directly use a three-phase IPM inverse
Become drives different types of alternating current-direct current blower fan (i.e. share three-phase IPM inverter circuit drive exchange and
DC fan), it is achieved the driving of alternating current-direct current blower fan common hardware, simple in construction, reliability is high.
According to embodiments of the invention, additionally provide a kind of air conditioning system corresponding to fan drive device.Should
Air conditioning system includes: above-described fan drive device.
In one example, this air conditioning system, utilize the IPM inverter circuit (example of existing driving DC fan
Such as IPM inverter circuit 104), when blower fan (such as: blower fan 106) receive IPM inverter circuit U,
During V, W three-phase output lead, controller (such as: controller 102) starts to detect blower fan type: exchange
Blower fan is with the general internal structure of DC fan as shown in Figure 4 and Figure 5.
Owing to AC blower fan is different from DC fan internal inductance winding method, the phase of DC fan three-phase windings
Balance mutually, the line resistance size of outer three lines of machine is the same；AC blower fan generally there are tapped situation
(as a example by two grades of blower fans), the line resistance of external three lines varies in size.
Utilize the above feature of two kinds of blower fans, when identifying blower fan type, to exporting fixing voltage between each line,
Calculate each line resistance by current sample feedack, thus judge blower fan type (such as: if
Line resistance is identical, then be DC fan, if line resistance differs, is then AC blower fan)；Further according to
Blower fan type, utilizes IPM inverter circuit to be driven.
After recognizing blower fan type, utilize IPM inverter circuit to drive corresponding blower fan, when blower fan for exchange
During blower fan, controller becomes single phase ac electric drive to hand over DC inverter by the biphase inverter circuit in IPM
Flow fan, as in figure 2 it is shown, can use G1, G2, G3, G4 to drive AC blower fan wherein a grade, it is possible to
Other one grade of AC blower fan is driven with G1, G2, G5, G6.
When blower fan is DC fan, controller becomes three by the three-phase inverting circuit of IPM DC inverter
Cross streams electric drive DC fan.As it is shown on figure 3, use G1, G2, G3, G4, G5, G6 to come
Drive DC fan.
Such as: example shown in Figure 6, the driving of alternating current-direct current blower fan common hardware in this air conditioning system
Cheng Zhong, the execution step of controller side may include that
Step 1, by ac/dc blower fan plug-in mounting (such as: blower fan binding post plug-in mounting can be passed through) to control
On the mainboard (such as: comprise the controller mainboard of controller 102) of device processed), perform step 2；
Step 2: export specific voltage to IPM inverter circuit, performs step 3；
Step 3: controller feedback information based on the current sample obtained after exporting described specific voltage,
Calculate the parameter of electric machine corresponding with blower fan, perform step 4 or step 6；
Step 4: when determining that current blower fan type is AC blower fan, performs step 5；
Step 5: IPM inverter circuit is switched to single phase ac electric drive AC blower fan；
Step 6: when determining that current blower fan type is DC fan, performs step 7；
Step 7: IPM inverter circuit is switched to three-phase alternating current electric drive DC fan.
The process realized due to the air conditioning system of the present embodiment and function essentially correspond to earlier figures 1 to Fig. 5
The embodiment of shown device, principle and example, therefore the most detailed part, Ke Yican in the description of the present embodiment
See the related description in previous embodiment, do not repeat at this.
Through substantial amounts of verification experimental verification, use technical scheme, it is possible to achieve blower fan type identifies automatically
(such as: sharing same blower fan plug terminal, blower fan type identifies automatically), shares a three-phase IPM
Inverter circuit drives alternating current-direct current blower fan；Can significantly reduce the unpredictable application scenario of blower fan type (as after sale)
The cost of controller and space.
According to embodiments of the invention, the blower fan additionally providing a kind of air conditioning system corresponding to air conditioning system drives
Dynamic method.The flow chart of one embodiment of the blower fan driving method of the air conditioning system of the present invention shown in Figure 7.
The blower fan driving method of this air conditioning system includes:
At step S110, by described controller 102, identify blower fan in above-described air conditioning system
The type of 106, to obtain the recognition result of correspondence.
Such as: the IPM inverter circuit of existing driving DC fan can be utilized, when blower fan (such as: blower fan
106), when receiving U, V, W three-phase output lead of IPM inverter circuit, controller is (such as: controller
102) start to detect blower fan type.
Such as: when blower fan is inserted on controller, controller, by exporting specific voltage, passes through electric current
The data calculating of sampling feedback judges that the blower fan of plug-in mounting is DC fan or AC blower fan, it is achieved fan-type
Type identifies (such as: sharing same blower fan plug terminal, blower fan type identifies automatically) automatically.
Thus, by controller, blower fan type is identified, thus provides for driving based on recognition result
Reliable basis, mode of operation is simple, good reliability.
Below in conjunction with the flow chart of an embodiment of the method middle controller identifying processing of the present invention shown in Fig. 8,
Further illustrate step S110 identifies the concrete mistake of the type of blower fan 106 in above-described air conditioning system
Journey.
Step S210, exports default fixed voltage between each line of described each phase output lead.
Such as: when described blower fan 106 is connected to each phase output lead of described IPM inverter circuit 104, logical
Cross controller 102 control described IPM inverter circuit 104 export between each line of described each phase output lead preset
Fixed voltage.
Such as: the feature of alternating current-direct current blower fan can be utilized, when identifying blower fan type, to IPM inverter circuit
U, V, W three-phase output lead each line between export fixing voltage.
Step S220, after exporting described fixed voltage, carries out electric current to described IPM inverter circuit 104
Sampling, is calculated by described current sample feedack, to obtain each line of described each phase output lead
Between resistance.
Such as: can export fixing between each line to U, V, W three-phase output lead of IPM inverter circuit
Voltage after, by current sample feedack, calculate U, V, W three-phase of IPM inverter circuit
Each line resistance of output lead.
Step S230, according to calculated described each line resistance (such as: the U of IPM inverter circuit,
Each line resistance of V, W three-phase output lead), judge according to default rule, to obtain described wind
The type of machine 106.
Thus, by the way of exporting fixed voltage between each line of IPM inverter circuit each phase output lead, enter
Row current sample after obtaining its feedback information, calculates and judges, determining current blower fan type, operation
Mode is simple, safety, and reliability is high, accuracy is good.
At step S120, according to described recognition result, by described IPM inverter circuit 104, to institute
State different types of blower fan 106 in air conditioning system and carry out adaptive driving.
In an object lesson, after recognizing blower fan type, it is possible to use existing IPM inverter circuit comes
Drive corresponding blower fan, i.e. share a three-phase IPM inverter circuit and drive alternating current-direct current blower fan.
In an object lesson, see the example shown in Fig. 2 and Fig. 3, three-phase inversion branch road, can wrap
Include: the first phase inversion branch road being made up of an IGBT pipe G1 and the 2nd IGBT pipe G2, by the 3rd IGBT
The second phase inversion branch road that pipe G3 and the 4th IGBT pipe G4 are constituted, and the 5th IGBT pipe G5 and the
The third phase inversion branch road (such as: third phase inversion branch road 1040) that six IGBT pipe G6 are constituted.
Alternatively, blower fan 106 different types of in described air conditioning system is driven by step S120, can
To include: when described different types of blower fan 106 includes AC blower fan, by described IPM inverter circuit
104 adaptations switch to biphase inverter circuit 1042, and output single-phase alternating current drives described AC blower fan.
Such as: when blower fan is AC blower fan, controller is by the biphase inverter circuit in IPM inverter circuit
DC inverter is become single phase ac electric drive AC blower fan.
More alternatively, when described AC blower fan includes that more than one drives gear, described at least three-phase inversion
Branch road is adapted and switches to the biphase inverter circuit 1042 adaptive with described drive bit quantity, by corresponding institute
State the corresponding respective drive gear driving described AC blower fan of biphase inverter circuit 1042.By based at least
Three-phase inversion Tributary Adaptation switches the biphase inverter circuit obtained, and carries out the different driving gear of AC blower fan
Corresponding driving, is conducive to improving versatility and the reliability that alternating current-direct current common hardware drives.
Such as: as in figure 2 it is shown, when the driving gear of AC blower fan is two grades, can use G1, G2,
G3, G4 constitute a biphase inverter circuit drive AC blower fan wherein a grade, it is also possible to G1, G2,
Another biphase inverter circuit that G5, G6 are constituted drives other one grade of AC blower fan.
Alternatively, blower fan 106 different types of in described air conditioning system is driven by step S120, also
May include that when described different types of blower fan 106 includes DC fan, by described IPM inverter circuit
104 adaptations switch to three-phase inverting circuit 1044, DC fan described in output three-phase alternating current electric drive.
Such as: when blower fan is DC fan, the controller three-phase inverting circuit handle by IPM inverter circuit
DC inverter becomes three-phase alternating current electric drive DC fan.
Such as: as shown in Figure 3, it is possible to use three contraries that G1, G2, G3, G4, G5, G6 are constituted
Power transformation road drives DC fan.
Thus, the adaptive of IPM inverter circuit is switched based on blower fan type by controller, it is possible to achieve hand over
The driving of DC fan common hardware, drives process safety, reliable, highly versatile.
Visible, integrating step S110 and step S120, by the controller identification to blower fan type, and lead to
Cross the controller control to IPM inverter circuit, it is achieved the driving of alternating current-direct current blower fan common hardware so that blower fan
The structure of driving means is greatly simplified, and reliability height, low cost, take up room little.
The process realized due to the blower fan driving method of the present embodiment and function essentially correspond to earlier figures 6 institute
The embodiment of the air conditioning system shown, principle and example, therefore the most detailed part in the description of the present embodiment, permissible
See the related description in previous embodiment, do not repeat at this.
Through substantial amounts of verification experimental verification, use technical scheme, in the unpredictable blower fan type such as after sale
Occasion, when blower fan is inserted on controller, controller by export specific voltage, adopted by electric current
The data calculating of sample feedback judges that the blower fan of plug-in mounting is DC fan or AC blower fan.When blower fan is exchange
During blower fan, controller becomes single phase ac electric drive to hand over DC inverter by the biphase inverter circuit in IPM
Flow fan；When blower fan is DC fan, controller passes through the three-phase inverting circuit of IPM DC inverter
Become three-phase alternating current electric drive DC fan.
To sum up, skilled addressee readily understands that, on the premise of not conflicting, above-mentioned each favourable side
Formula can freely combine, superposition.
The foregoing is only embodiments of the invention, be not limited to the present invention, for this area
For technical staff, the present invention can have various modifications and variations.All within the spirit and principles in the present invention,
Any modification, equivalent substitution and improvement etc. made, within should be included in scope of the presently claimed invention.
Claims (14)
1. a fan drive device, it is characterised in that including: controller (102) and IPM inversion electricity
Road (104), wherein,
Described controller (102), is used for identifying the type of described blower fan (106), and according to the knowledge obtained
Described IPM inverter circuit (104) is controlled by other result；
Described IPM inverter circuit (104), is connected to described blower fan (106) and described controller (102),
Under the control in described controller (102), to blower fan (106) different types of in described recognition result
Carry out adaptive driving.
Device the most according to claim 1, it is characterised in that also include: current sampling circuit (116)；
Described current sampling circuit (116), is connected to described IPM inverter circuit (104) and described controller (102)
Between, for the input side electric current of described IPM inverter circuit (104) is sampled；
Described controller (102) including: fixed voltage output module (1022), resistance calculations module (1024)
With type judging module (1026)；Wherein,
Described fixed voltage output module (1022), is connected to described IPM inverter circuit (104), uses
Export default between each line of described motor each phase output lead in controlling described IPM inverter circuit (104)
Fixed voltage；
Described resistance calculations module (1024), is used for receiving what described current sampling circuit (116) sent
Current sample information, calculates according to described current sample information, to obtain each of described each phase output lead
Line resistance；
Described type judging module (1026), is connected to described resistance calculations module (1024), for root
According to calculated described each line resistance, judge according to default rule, to obtain described blower fan
(106) type.
Device the most according to claim 1 and 2, it is characterised in that described IPM inverter circuit (104),
Including: at least three-phase inversion branch road；Wherein,
Described at least three-phase inversion branch circuit parallel connection and fitting under the control of described controller (102)
Join switching；
When described different types of blower fan (106) includes AC blower fan, described at least three-phase inversion branch road
Being adapted and switch to biphase inverter circuit (1042), output single-phase alternating current drives described AC blower fan；
Or,
When described different types of blower fan (106) includes DC fan, described at least three-phase inversion branch road
It is adapted and switches to three-phase inverting circuit (1044), DC fan described in output three-phase alternating current electric drive.
Device the most according to claim 3, it is characterised in that wherein,
When described AC blower fan includes that more than one drives gear, described at least three-phase inversion branch road is adapted
Switch to the biphase inverter circuit (1042) adaptive with described drive bit quantity, by corresponding described biphase
The corresponding respective drive gear driving described AC blower fan of inverter circuit (1042).
5. according to the device one of claim 1-4 Suo Shu, it is characterised in that also include: blower fan patches
Terminal；
Described blower fan plug terminal, patches described different types of blower fan (106) for adaptation.
6. according to the device one of claim 1-5 Suo Shu, it is characterised in that also include: rectification circuit
(108) and pfc circuit (110), wherein,
Described rectification circuit (108), carries out rectification process for the electric energy providing corresponding feeder ear；
Described pfc circuit (110), is connected to described rectification circuit (108) and described IPM inversion electricity
Between road (104), the electric energy after processing described rectification circuit (108) rectification carries out capability correction
Process.
7. according to the device one of claim 1-6 Suo Shu, it is characterised in that also include: filter circuit
(112)；Wherein,
Described filter circuit (112), is connected to described pfc circuit (110) and described IPM inversion electricity
Between road (104), the electric energy after processing described pfc circuit (110) capability correction is filtered
Process.
8. according to the device one of claim 1-7 Suo Shu, it is characterised in that also include: voltage sample
Circuit (114),
Described voltage sampling circuit (114), be connected to the input side of described IPM inverter circuit (104) with
Between described controller (102), for the input side voltage of described IPM inverter circuit (104) is carried out
Sampling, to realize being monitored described voltage.
9. according to the device one of claim 1-8 Suo Shu, it is characterised in that also include: boostrap circuit
(118)；Wherein,
Described boostrap circuit (118), is connected to described IPM inverter circuit (104), for described
The outlet side voltage of IPM inverter circuit (104) carries out adaptive output.
10. according to the device one of claim 1-9 Suo Shu, it is characterised in that described controller (102),
Including: digital signal processor (DSP).
11. 1 kinds of air conditioning systems, it is characterised in that including: the wind as described in claim 1-10 is arbitrary
Machine actuating device.
The blower fan driving method of 12. 1 kinds of air conditioning systems, it is characterised in that including:
By described controller (102), identify blower fan (106) in air conditioning system as claimed in claim 11
Type, with obtain correspondence recognition result；
According to described recognition result, by described IPM inverter circuit (104), in described air conditioning system
Different types of blower fan (106) carries out adaptive driving.
13. methods according to claim 12, it is characterised in that identify described air conditioning system apoplexy
The type of machine (106), including:
Default fixed voltage is exported between each line of described each phase output lead；
After exporting described fixed voltage, described IPM inverter circuit (104) is carried out current sample, logical
Cross described current sample feedack to calculate, to obtain each line resistance of described each phase output lead；
According to calculated described each line resistance, judge according to default rule, described to obtain
The type of blower fan (106).
14. according to the method described in claim 12 or 13, it is characterised in that in described air conditioning system
Different types of blower fan (106) is driven, including:
When described different types of blower fan (106) includes AC blower fan, by described IPM inverter circuit (104)
Adaptation switches to biphase inverter circuit (1042), and output single-phase alternating current drives described AC blower fan；
Or,
When described different types of blower fan (106) includes DC fan, by described IPM inverter circuit (104)
Adaptation switches to three-phase inverting circuit (1044), DC fan described in output three-phase alternating current electric drive.
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