CN106026845B - A kind of fan drive device, air-conditioning system and its blower driving method - Google Patents
A kind of fan drive device, air-conditioning system and its blower driving method Download PDFInfo
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- CN106026845B CN106026845B CN201610463903.2A CN201610463903A CN106026845B CN 106026845 B CN106026845 B CN 106026845B CN 201610463903 A CN201610463903 A CN 201610463903A CN 106026845 B CN106026845 B CN 106026845B
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- blower
- inverter circuit
- controller
- ipm
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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
-
- 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 kind of fan drive device, air-conditioning system and its blower driving methods, the device includes: controller and IPM inverter circuit, wherein the controller, the type of the blower for identification, and the IPM inverter circuit is controlled according to obtained recognition result；The IPM inverter circuit, is connected to the blower and the controller, for carrying out adaptation driving to different types of blower in the recognition result under the control of the controller.The solution of the present invention, can overcome in the prior art the defects of structure is complicated, at high cost and occupied space is big, realize that structure is simple, the at low cost and beneficial effect that occupies little space.
Description
Technical field
The invention belongs to air-conditioning technical fields, and in particular to a kind of fan drive device, air-conditioning system and its blower driving
Method more particularly to a kind of driving device of alternating current-direct current blower common hardware, air-conditioning system and its blower driving method.
Background technique
Air conditioner, that is, air regulator, can be by artificial means, to the temperature of surrounding air in building/structures, wet
The parameters such as degree, cleanliness, speed are adjusted and control.
Existing air conditioner is in the control of indoor and outdoor blower, and generally, AC blower fan all uses relay to control, direct current wind
Machine is controlled using IPM (Intelligent Power Module, intelligent power module) inverter circuit.After sale etc. unpredictable
Under the application scenario of blower type, the same controller needs to load onto the relay and control DC fan of control AC blower fan in advance
Three-phase IPM circuit, it is also necessary to wrong plug is prevented by different blower plug terminals, needs higher cost and biggish sky
Between.
In the prior art, there is the defects of structure is complicated, at high cost and occupied space is big.
Summary of the invention
It is an object of the present invention in view of the foregoing drawbacks, a kind of fan drive device, air-conditioning system and its blower are provided and driven
Dynamic method, with solution, different types of blower needs different driving circuits drive and then causes structure multiple in the prior art
It is miscellaneous, reach the simple effect of structure.
The present invention provides a kind of fan drive device, comprising: controller and IPM inverter circuit, wherein the controller,
The type of the blower for identification, and the IPM inverter circuit is controlled according to obtained recognition result；The IPM
Inverter circuit is connected to the blower and the controller, for being tied under the control of the controller to the identification
Different types of blower carries out adaptation driving in fruit.
Optionally, further includes: current sampling circuit；The current sampling circuit is connected to the IPM inverter circuit and institute
It states between controller, is sampled for the input side electric current to the IPM inverter circuit；The controller includes: fixed electricity
Press output module, resistance calculations module and type judging module；Wherein, the fixed voltage output module, is connected to the IPM
Inverter circuit, it is preset fixed electric to being exported between each line of each phase output line of the motor for controlling the IPM inverter circuit
Pressure；The resistance calculations module, the current sample information sent for receiving the current sampling circuit, is adopted according to the electric current
Sample information is calculated, to obtain each line resistance of each phase output line；The type judging module is connected to the electricity
Computing module is hindered, it is described to obtain for being judged according to default rule according to each line resistance being calculated
The type of blower.
Optionally, the IPM inverter circuit, comprising: at least three-phase inversion branch；Wherein, at least three-phase inversion branch
Road is in parallel and adaptation switching can be carried out under the control of the controller；When the different types of blower includes AC blower fan
When, at least three-phase inversion branch, which is adapted, is switched to two-phase inverter circuit, exchanges wind described in output single-phase exchange electric drive
Machine；Alternatively, at least three-phase inversion branch, which is adapted, is switched to three when the different types of blower includes DC fan
Phase inverter circuit exports DC fan described in three-phase alternating current electric drive.
Optionally, wherein when the AC blower fan includes more than one driving gear, at least three-phase inversion branch
It is adapted the two-phase inverter circuit for being switched to and being adapted to the driving numbers of gear steps, it is corresponding by the corresponding two-phase inverter circuit
Drive the respective drive gear of the AC blower fan.
Optionally, further includes: blower plug terminal；The blower plug terminal patches the different type for being adapted to
Blower.
Optionally, further includes: rectification circuit and pfc circuit, wherein the rectification circuit, for being mentioned to corresponding feeder ear
The electric energy of confession carries out rectification processing；The pfc circuit is connected between the rectification circuit and the IPM inverter circuit, is used for
Capability correction processing is carried out to the rectifier circuit rectifies treated electric energy.
Optionally, further includes: filter circuit；Wherein, the filter circuit, is connected to the pfc circuit and the IPM is inverse
Between power transformation road, for the pfc circuit capability correction, treated that electric energy is filtered.
Optionally, further includes: voltage sampling circuit, the voltage sampling circuit are connected to the defeated of the IPM inverter circuit
Enter between side and the controller, sampled for the input side voltage to the IPM inverter circuit, to realize to the electricity
Pressure is monitored.
Optionally, further includes: boostrap circuit (118)；Wherein, the boostrap circuit is connected to the IPM inverter circuit,
Adaptation output is carried out for the outlet side voltage to the IPM inverter circuit.
Optionally, the controller, comprising: digital signal processor (DSP).
Match with above-mentioned apparatus, another aspect of the present invention provides a kind of air-conditioning system, comprising: above-described blower drives
Dynamic device.
Match with above-mentioned air-conditioning system, further aspect of the present invention provides a kind of blower driving method of air-conditioning system, packet
It includes: by the controller, identifying the type of blower in above-described air-conditioning system, to obtain corresponding recognition result；Root
According to the recognition result, by the IPM inverter circuit, adaptation drive is carried out to different types of blower in the air-conditioning system
It is dynamic.
Optionally, the type of blower in the air-conditioning system is identified, comprising: export between each line of each phase output line
Preset fixed voltage；After exporting the fixed voltage, current sample is carried out to the IPM inverter circuit, passes through the electricity
The information of stream sampling feedback is calculated, to obtain each line resistance of each phase output line；According to being calculated
Each line resistance, is judged according to default rule, to obtain the type of the blower.
Optionally, different types of blower in the air-conditioning system is driven, comprising: when the different types of wind
When machine includes AC blower fan, IPM inverter circuit adaptation is switched to two-phase inverter circuit, output single-phase exchanges electric drive institute
State AC blower fan；Alternatively, the IPM inverter circuit is adapted to and is switched when the different types of blower includes DC fan
For three-phase inverting circuit, DC fan described in three-phase alternating current electric drive is exported.
The solution of the present invention directly drives different types of alternating current-direct current blower (i.e. total using a three-phase IPM inverter circuit
AC and DC blower is driven with a three-phase IPM inverter circuit), realize the driving of alternating current-direct current blower common hardware, structure letter
It is single, high reliablity.
Further, the solution of the present invention, may be implemented blower type automatic identification (such as: share the same blower and patch
Terminal, blower type automatic identification), it shares a three-phase IPM inverter circuit and drives alternating current-direct current blower；Can substantially it reduce fan-type
The cost of the unpredictable application of type (as after sale) controller and space.Wherein, the blower plug terminal, can be direct current
Blower port.
Further, the solution of the present invention, in the occasion of the unpredictable blower type such as after sale, when blower inserting to controller
(such as: a needle stand is provided on the mainboard of controller under normal circumstances, a connecting terminal is provided on blower, this connects
The needle stand of line terminals and mainboard corresponds, and when installation, the connecting terminal of blower is inserted on mainboard needle stand) on when, controller
By export specific voltage (such as: output specific voltage is not output fixed voltage；But the electricity that controller anticipated that
Pressure could be calculated according to the current value that following samples arrive to the resistance or inductance value between line in this way), it is fed back by current sample
Data, which calculate, judges that the blower of inserting is DC fan or AC blower fan.When blower is AC blower fan, controller passes through
Two-phase inverter circuit in IPM is DC inverter at single phase ac electric drive AC blower fan；When blower is DC fan, control
Device processed is by the three-phase inverting circuit of IPM DC inverter at three-phase alternating current electric drive DC fan.
The solution of the present invention as a result, drives different types of blower using a three-phase IPM inverter circuit, solves existing
Different types of blower needs different driving circuits drive and then leads to the problem of structure is complicated in technology, thus, gram
Clothes the defect that structure is complicated in the prior art, at high cost and big occupied space realizes that structure is simple, at low cost and occupy little space
Beneficial effect.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment of fan drive device of the invention；
Fig. 2 is the schematic diagram of internal structure of an embodiment of the alternating-current fan driving circuit in the device of the invention；
Fig. 3 is the schematic diagram of internal structure of an embodiment of the DC fan driving circuit in the device of the invention；
Fig. 4 is the schematic diagram of internal structure of an embodiment of AC blower fan in the device of the invention；
Fig. 5 is the schematic diagram of internal structure of an embodiment of DC fan in the device of the invention；
The operation principle schematic diagram of one embodiment of air-conditioning system Fig. 6 of the invention；
The flow chart of one embodiment of the blower driving method of air-conditioning system Fig. 7 of the invention；
The flow chart of an embodiment of controller identifying processing in method Fig. 8 of the invention.
In conjunction with attached drawing, appended drawing reference is as follows in the embodiment of the present invention:
102- controller；1022- fixed voltage output module；1024- resistance calculations module；1026- type judging module；
104-IPM inverter circuit；1040- inversion branch；1042- two-phase inverter circuit；1044- three-phase inverting circuit；106- blower；
108- rectification circuit；110-PFC circuit；112- filter circuit；114- voltage sampling circuit；116- current sampling circuit；118-
Boostrap circuit.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Correspondingly technical solution of the present invention is clearly and completely described in attached drawing.Obviously, described embodiment is only the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
According to an embodiment of the invention, providing a kind of fan drive device, blower of the invention drives dress as shown in Figure 1
The structural schematic diagram for the embodiment set.The fan drive device includes: controller 102 and IPM inverter circuit 104.
In one embodiment, the controller 102, the type of the blower 106 for identification, and according to obtaining
Recognition result controls the IPM inverter circuit 104.
In one example, the controller 102 may include: digital signal processor (DSP).
Such as: it can use the IPM inverter circuit of existing driving DC fan, when blower (such as: blower 106) is connected to
When U, V, W three-phase output line of IPM inverter circuit, and controller (such as: controller 102) start detection blower fan type.
Such as: when in blower inserting to controller, controller is fed back by exporting specific voltage by current sample
Data calculate and judge that the blower of inserting is DC fan or AC blower fan, realize blower type automatic identification (such as: hand over
DC fan can share the same blower plug terminal, and can realize the automatic of blower type by the blower plug terminal
Identification).
Blower type is identified by controller as a result, thus for the driving based on recognition result provide reliably according to
According to mode of operation is simple, good reliability.
It optionally, can also include: current sampling circuit 116 in conjunction with controller 102；The current sampling circuit 116,
It is connected between the IPM inverter circuit 104 and the controller 102, for the input side to the IPM inverter circuit 104
Electric current is sampled.
Correspondingly, the controller 102 identifies the type of the blower 106, comprising: fixed voltage output module 1022,
Resistance calculations module 1024 and type judging module 1026.
Wherein, the fixed voltage output module 1022 is connected to the IPM inverter circuit 104, described for controlling
IPM inverter circuit 104 exports preset fixed voltage between each line of each phase output line of the motor.Such as: when the blower
106 when being connected to each phase output line of the IPM inverter circuit 104, controls the IPM inverter circuit 104 to described each mutually defeated
Preset fixed voltage is exported between each line of outlet.Wherein, controller 102 is the logic and operation for controlling whole system
, it does not power directly, is the power supply system power supply of control system.
Such as: the characteristics of can use alternating current-direct current blower, when identifying blower type, to U, V, W tri- of IPM inverter circuit
Fixed voltage is exported between each line of phase output line.
The resistance calculations module 1024, the current sample information sent for receiving the current sampling circuit 116, root
It is calculated according to the current sample information, to obtain each line resistance of each phase output line.
Such as: after fixed voltage being exported between each line to U, V, W three-phase output line of IPM inverter circuit, lead to
The information of overcurrent sampling feedback calculates each line resistance of U, V, W three-phase output line of IPM inverter circuit.
In one example, it can also be obtained by calculating line resistance, calculating the calculations such as each phase winding inductance
Blower type.
The type judging module 1026 is connected to the resistance calculations module 1024, for according to the institute being calculated
State each line resistance (such as: each line resistance of U, V, W three-phase output line of IPM inverter circuit), according to default rule into
Row judgement, to obtain the type of the blower 106.
As a result, by way of exporting fixed voltage between each line to each phase output line of IPM inverter circuit, carries out electric current and adopt
Sample and after obtaining its feedback information, is calculated and is judged, determines current blower type, and mode of operation is simple, safety, and reliable
Property it is high, accuracy is good.
In one embodiment, the IPM inverter circuit 104 is connected to the blower 106 and the controller
102, for carrying out adaptation drive to blower 106 different types of in the recognition result under the control of the controller 102
It is dynamic.
Optionally, the IPM inverter circuit 104, comprising: at least three-phase inversion branch.Wherein, at least three-phase inversion
Branch circuit parallel connection and adaptation switching can be carried out under the control of the controller 102.
Such as: IPM inverter circuit 104 can integrate device for power switching and driving circuit, can also integrate
There are the fault detection circuits such as overvoltage, overcurrent and overheat, and signal can be will test and be sent to controller.IPM inverter circuit 104,
It can be made of the gate drive circuit and fast protection circuit of the tube core of high-speed low-power-consumption and optimization, even if load thing occurs
Therefore or improper use, it is also ensured that IPM itself is not damaged.Optionally, IPM inverter circuit 104 generally use IGBT as
Power switch component is internally integrated the integrated morphology of current sensor and driving circuit.
Such as: three-phase inverting circuit can be used, carry out the switching of blower type.
Such as: the gear of AC blower fan is not necessarily limited in the blower of two gears, and one grade of blower also can be used in three
Phase inverter circuit.
Such as: for AC blower fan more than third gear, connecting terminal generally can be more than DC fan, pass through terminals sub-district
The effect divided can be changed.
In a specific example, after recognizing blower type, it is corresponding to drive to can use existing IPM inverter circuit
Blower shares a three-phase IPM inverter circuit and drives alternating current-direct current blower.
In a specific example, referring to figs. 2 and 3 shown in example, three-phase inversion branch may include: by first
The first phase inversion branch that IGBT pipe G1 and the 2nd IGBT pipe G2 is constituted, is made of the 3rd IGBT pipe G3 and the 4th IGBT pipe G4
Third phase inversion branch that second phase inversion branch and the 5th IGBT pipe G5 and the 6th IGBT pipe G6 are constituted (such as: third phase
Inversion branch 1040).
In one example, when the different types of blower 106 includes AC blower fan (example shown in Figure 4)
When, at least three-phase inversion branch, which is adapted, to be switched to two-phase inverter circuit 1042 (example shown in Figure 2), and output is single
Phase alternating current drives the AC blower fan.
Such as: when blower is AC blower fan, controller is by the two-phase inverter circuit in IPM inverter circuit direct current
It is reverse into single phase ac electric drive AC blower fan.
More optionally, when the AC blower fan includes more than one driving gear, at least three-phase inversion branch quilt
Adaptation is switched to the two-phase inverter circuit 1042 being adapted to the driving numbers of gear steps, passes through the corresponding two-phase inverter circuit
The 1042 corresponding respective drive gears for driving the AC blower fan.
Wherein, the input mode of DC fan is the more of three-phase input under normal circumstances, when driving, can generally be shared
With one grade or two grades of AC blower fan.In addition, AC blower fan also needs the input of a zero curve.
As a result, by the two-phase inverter circuit switched based at least three-phase inversion Tributary Adaptation, to AC blower fan
Different driving gear carries out corresponding driving, is conducive to the versatility and reliability that improve the driving of alternating current-direct current common hardware.
Such as: as shown in Fig. 2, one that G1, G2, G3, G4 are constituted can be used when the driving gear of AC blower fan is two grades
A two-phase inverter circuit drives wherein one grade of AC blower fan, it is also possible to another two-phase inversion electricity that G1, G2, G5, G6 are constituted
Road drives other one grade of AC blower fan.
Such as: for example: when driving gear is 4, the number of phases of inversion branch can at least four (such as: branch 1, branch
2, branch 3, branch 4).4 inversion branches can switch to 6 two-phase inversion branches (12,13,14,23,24,34).
In one example, when the different types of blower 106 includes DC fan (example shown in Figure 5)
When, at least three-phase inversion branch, which is adapted, to be switched to three-phase inverting circuit 1044 (example shown in Figure 3), output three
Phase alternating current drives the DC fan.
Such as: when blower is DC fan, controller is inverse direct current by the three-phase inverting circuit of IPM inverter circuit
Become three-phase alternating current electric drive DC fan.
Such as: as shown in figure 3, the three-phase inverting circuit of G1, G2, G3, G4, G5, G6 composition can be used to drive direct current
Blower.
Switched as a result, by controller based on adaptation of the blower type to IPM inverter circuit, alternating current-direct current blower may be implemented
The driving of common hardware, it is driving process safety, reliable, it is versatile.
It can also include: that blower connects in conjunction with controller 102 and IPM inverter circuit 104 in an optional embodiment
Insertion terminal.
In one example, the blower plug terminal patches the different types of blower 106 for being adapted to.Wherein,
Blower plug terminal can be the connector of blower and air-conditioning, the i.e. connector of IPM inverter circuit and blower.
Such as: the inserting of ac/dc blower can be arrived by the controller comprising controller 102 by blower connecting terminal
Mainboard (such as: the controller mainboard may include controller 102 and peripheral circuit) on.
As a result, by shared blower connecting terminal, can on the basis of simplifying the hardware configuration of fan drive device,
Realize reliably patching for alternating current-direct current blower, property easy to use substantially increases.
As it can be seen that by identification of the controller to blower type, and by control of the controller to IPM inverter circuit, it realizes
The driving of alternating current-direct current blower common hardware, so that the structure of fan drive device is greatly simplified, and high reliablity, cost
It is low, occupy little space.
It can also include: rectified current in conjunction with controller 102 and IPM inverter circuit 104 in an optional embodiment
Road 108 and PFC (Power Factor Correction, PFC) circuit 110.
In one example, the rectification circuit 108, electric energy for providing corresponding feeder ear (such as: alternating current) into
Row rectification processing.
In one example, the pfc circuit 110 is connected to the rectification circuit 108 and the IPM inverter circuit 104
Between, for carrying out capability correction processing to the rectification circuit 108 rectification treated electric energy.
The combined use for passing through rectification circuit and pfc circuit as a result, can make the direct current for being input to IPM inverter circuit
Electricity is more stable, more reliable, is conducive to promote the safety to the driving of alternating current-direct current blower.
It can also include: filtering in conjunction with rectification circuit 108 and pfc circuit 110 in a more optional embodiment
Circuit 112.
In one example, the filter circuit 112 can connect in the pfc circuit 110 and the IPM inversion electricity
Between road 104, for 110 capability correction of pfc circuit, treated that electric energy is filtered.
Such as: filter circuit 112 may include filter capacitor.The filter capacitor is parallel to the IPM inverter circuit
104 input side.
As a result, by filter circuit, the stability and peace for being input to the direct current of IPM inverter circuit can be further promoted
Quan Xing.
It can also include: that voltage is adopted in conjunction with controller 102 and IPM inverter circuit 104 in an optional embodiment
Sample circuit 114.
In one example, the voltage sampling circuit 114 is connected to input side and the institute of the IPM inverter circuit 104
It states between controller 102, is sampled for the input side voltage to the IPM inverter circuit 104, to realize to the voltage
It is monitored.
Such as: this voltage sampling circuit primarily can be used for calculating output voltage, generally can by input voltage and
The output duty cycle of IPM inverter circuit obtains output voltage values.
Correspondingly, the controller 102 is also used to input side voltage and/or input to the IPM inverter circuit 104
Side electric current is monitored and carries out resistance calculations based on the electric current sampled.
As a result, by voltage sampling circuit, the reliability and safety of the driving of alternating current-direct current blower common hardware can be promoted,
It is also beneficial to extend its function.
It can also include: boostrap circuit 118 in conjunction with IPM inverter circuit 104 in an optional embodiment.
In one example, the boostrap circuit 118 is connected to the IPM inverter circuit 104, for inverse to the IPM
The outlet side voltage on power transformation road 104 carries out adaptation output.
As a result, by the setting of boostrap circuit, it can be adapted to the output voltage of adjustment IPM inverter circuit, to improve
Its reliability and versatility.
Through a large amount of verification experimental verification, using the technical solution of the present embodiment, directly driven using a three-phase IPM inverter circuit
Different types of alternating current-direct current blower (sharing a three-phase IPM inverter circuit driving AC and DC blower) is moved, realizes and hands over directly
The driving of flow fan common hardware, structure is simple, high reliablity.
According to an embodiment of the invention, additionally providing a kind of air-conditioning system corresponding to fan drive device.The air-conditioning system
System includes: above-described fan drive device.
In one example, the air-conditioning system, using it is existing driving DC fan IPM inverter circuit (such as: IPM is inverse
Power transformation road 104), when blower (such as: blower 106) is connected to U, V, W three-phase output line of IPM inverter circuit, controller (example
Such as controller 102) start detection blower fan type: AC blower fan internal structure with DC fan is as shown in Figure 4 and Figure 5.
Since AC blower fan is different from DC fan internal inductance winding method, the mutual of DC fan three-phase windings is put down
Weighing apparatus, the line resistance size of three lines of outer machine are the same；AC blower fan (is with two grades of blowers the case where generally there are centre taps
Example), the line resistance of external three lines is of different sizes.
, to fixed voltage is exported between each line, pass through electric current when identifying blower type using the above feature of two kinds of blowers
The information of sampling feedback calculates each line resistance, thus judge blower type (such as: be straight if line resistance is identical
Flow fan, if line resistance is not identical, for AC blower fan)；Further according to blower type, driven using IPM inverter circuit.
After recognizing blower type, corresponding blower is driven using IPM inverter circuit, when blower is AC blower fan,
Controller passes through the two-phase inverter circuit in IPM DC inverter into single phase ac electric drive AC blower fan, as shown in Fig. 2,
G1, G2, G3, G4 can be used to drive wherein one grade of AC blower fan, it is also possible to which G1, G2, G5, G6 drive other one grade of AC blower fan.
When blower is DC fan, controller is by the three-phase inverting circuit of IPM DC inverter at three-phase alternating current
Electric drive DC fan.As shown in figure 3, using G1, G2, G3, G4, G5, G6 to drive DC fan.
Such as: example shown in Figure 6, in the air-conditioning system during the driving of alternating current-direct current blower common hardware, control
The execution step of device side processed may include:
Step 1, the master that ac/dc blower inserting (such as: can be inserted by blower connecting terminal) is arrived to controller
Plate (such as: the controller mainboard comprising controller 102) on), execute step 2；
Step 2: exporting specific voltage to IPM inverter circuit, execute step 3；
Step 3: controller is based on the feedback information for exporting the current sample obtained after the specific voltage, calculating and wind
The corresponding parameter of electric machine of machine executes step 4 or step 6；
Step 4: when the current blower type of determination is AC blower fan, executing step 5；
Step 5: IPM inverter circuit is switched into single phase ac electric drive AC blower fan；
Step 6: when the current blower type of determination is DC fan, executing step 7；
Step 7: IPM inverter circuit is switched into three-phase alternating current electric drive DC fan.
The processing and function realized by the air-conditioning system of the present embodiment essentially correspond to earlier figures 1 to shown in fig. 5
Embodiment, principle and the example of device, therefore not detailed place in the description of the present embodiment, may refer to the phase in previous embodiment
It speaks on somebody's behalf bright, this will not be repeated here.
Through a large amount of verification experimental verification, using technical solution of the present invention, may be implemented blower type automatic identification (such as:
Share the same blower plug terminal, blower type automatic identification), it shares a three-phase IPM inverter circuit and drives alternating current-direct current wind
Machine；The cost and space of the unpredictable application of blower type (as after sale) controller can substantially be reduced.
According to an embodiment of the invention, additionally providing a kind of blower driving side of air-conditioning system corresponding to air-conditioning system
Method.The flow chart of one embodiment of the blower driving method of air-conditioning system of the invention shown in Figure 7.The wind of the air-conditioning system
Machine driving method includes:
At step S110, by the controller 102, the type of blower 106 in above-described air-conditioning system is identified,
To obtain corresponding recognition result.
Such as: it can use the IPM inverter circuit of existing driving DC fan, when blower (such as: blower 106) is connected to
When U, V, W three-phase output line of IPM inverter circuit, and controller (such as: controller 102) start detection blower fan type.
Such as: when in blower inserting to controller, controller is fed back by exporting specific voltage by current sample
Data calculate and judge that the blower of inserting is DC fan or AC blower fan, realize blower type automatic identification (such as: altogether
With the same blower plug terminal, blower type automatic identification).
Blower type is identified by controller as a result, thus for the driving based on recognition result provide reliably according to
According to mode of operation is simple, good reliability.
Below with reference to the flow chart of an embodiment of controller identifying processing in method of the invention shown in Fig. 8, further
Illustrate the detailed process of the type of blower 106 in the above-described air-conditioning system of identification of step S110.
Step S210 exports preset fixed voltage between each line of each phase output line.
Such as: when the blower 106 is connected to each phase output line of the IPM inverter circuit 104, pass through controller
The 102 control IPM inverter circuits 104 export preset fixed voltage between each line of each phase output line.
Such as: the characteristics of can use alternating current-direct current blower, when identifying blower type, to U, V, W tri- of IPM inverter circuit
Fixed voltage is exported between each line of phase output line.
Step S220 carries out current sample to the IPM inverter circuit 104, passes through institute after exporting the fixed voltage
The information for stating current sample feedback is calculated, to obtain each line resistance of each phase output line.
Such as: after fixed voltage being exported between each line to U, V, W three-phase output line of IPM inverter circuit, lead to
The information of overcurrent sampling feedback calculates each line resistance of U, V, W three-phase output line of IPM inverter circuit.
Step S230, according to be calculated each line resistance (such as: U, V, W three-phase of IPM inverter circuit export
Each line resistance of line), judged according to default rule, to obtain the type of the blower 106.
As a result, by way of exporting fixed voltage between each line to each phase output line of IPM inverter circuit, carries out electric current and adopt
Sample and after obtaining its feedback information, is calculated and is judged, determines current blower type, and mode of operation is simple, safety, and reliable
Property it is high, accuracy is good.
At step S120, according to the recognition result, by the IPM inverter circuit 104, in the air-conditioning system
Different types of blower 106 carries out adaptation driving.
In a specific example, after recognizing blower type, it is corresponding to drive to can use existing IPM inverter circuit
Blower shares a three-phase IPM inverter circuit and drives alternating current-direct current blower.
In a specific example, referring to figs. 2 and 3 shown in example, three-phase inversion branch may include: by first
The first phase inversion branch that IGBT pipe G1 and the 2nd IGBT pipe G2 is constituted, is made of the 3rd IGBT pipe G3 and the 4th IGBT pipe G4
Third phase inversion branch that second phase inversion branch and the 5th IGBT pipe G5 and the 6th IGBT pipe G6 are constituted (such as: third phase
Inversion branch 1040).
Optionally, step S120 drives blower 106 different types of in the air-conditioning system, may include: to work as
When the different types of blower 106 includes AC blower fan, the IPM inverter circuit 104 adaptation is switched to two-phase inversion electricity
Road 1042, output single-phase exchange AC blower fan described in electric drive.
Such as: when blower is AC blower fan, controller is by the two-phase inverter circuit in IPM inverter circuit direct current
It is reverse into single phase ac electric drive AC blower fan.
More optionally, when the AC blower fan includes more than one driving gear, at least three-phase inversion branch quilt
Adaptation is switched to the two-phase inverter circuit 1042 being adapted to the driving numbers of gear steps, passes through the corresponding two-phase inverter circuit
The 1042 corresponding respective drive gears for driving the AC blower fan.Pass through what is switched based at least three-phase inversion Tributary Adaptation
Two-phase inverter circuit carries out corresponding driving to the different driving gear of AC blower fan, is conducive to improve the drive of alternating current-direct current common hardware
Dynamic versatility and reliability.
Such as: as shown in Fig. 2, one that G1, G2, G3, G4 are constituted can be used when the driving gear of AC blower fan is two grades
A two-phase inverter circuit drives wherein one grade of AC blower fan, it is also possible to another two-phase inversion electricity that G1, G2, G5, G6 are constituted
Road drives other one grade of AC blower fan.
Optionally, step S120 drives blower 106 different types of in the air-conditioning system, can also include:
When the different types of blower 106 includes DC fan, the IPM inverter circuit 104 adaptation is switched to three-phase inversion
Circuit 1044 exports DC fan described in three-phase alternating current electric drive.
Such as: when blower is DC fan, controller is inverse direct current by the three-phase inverting circuit of IPM inverter circuit
Become three-phase alternating current electric drive DC fan.
Such as: as shown in figure 3, the three-phase inverting circuit of G1, G2, G3, G4, G5, G6 composition can be used to drive direct current
Blower.
Switched as a result, by controller based on adaptation of the blower type to IPM inverter circuit, alternating current-direct current blower may be implemented
The driving of common hardware, it is driving process safety, reliable, it is versatile.
As it can be seen that in conjunction with step S110 and step S120, identification by controller to blower type, and pass through controller pair
The control of IPM inverter circuit realizes the driving of alternating current-direct current blower common hardware, so that the structure of fan drive device is able to significantly
Simplify, and high reliablity, it is at low cost, occupy little space.
The processing and function realized by the blower driving method of the present embodiment essentially correspond to aforementioned sky shown in fig. 6
Embodiment, principle and the example of adjusting system, therefore not detailed place in the description of the present embodiment, may refer in previous embodiment
Related description, this will not be repeated here.
Through a large amount of verification experimental verification, using technical solution of the present invention, in the occasion of the unpredictable blower type such as after sale,
When in blower inserting to controller, controller by exporting specific voltage, sentence by the data calculating fed back by current sample
The blower of disconnected inserting out is DC fan or AC blower fan.When blower is AC blower fan, controller passes through the two-phase in IPM
Inverter circuit is DC inverter at single phase ac electric drive AC blower fan；When blower is DC fan, controller passes through IPM
Three-phase inverting circuit DC inverter at three-phase alternating current electric drive DC fan.
To sum up, it will be readily appreciated by those skilled in the art that under the premise of not conflicting, above-mentioned each advantageous manner can be certainly
It combined, be superimposed by ground.
The above description is only an embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should be included within scope of the presently claimed invention.
Claims (24)
1. a kind of fan drive device characterized by comprising controller (102) and IPM inverter circuit (104), wherein
The controller (102), the type of the blower (106) for identification, and according to obtained recognition result to the IPM
Inverter circuit (104) is controlled；The type of the blower (106), comprising: AC blower fan or DC fan；Further include: electric current
Sample circuit (116)；The current sampling circuit (116) is connected to the IPM inverter circuit (104) and the controller
(102) between, for being sampled to the input side electric current of the IPM inverter circuit (104)；
The controller (102) includes: that fixed voltage output module (1022), resistance calculations module (1024) and type judge mould
Block (1026)；Wherein,
The fixed voltage output module (1022) is connected to the IPM inverter circuit (104), for controlling the IPM inversion
Preset fixed voltage is exported between each line of each phase output line of the motor of circuit (104) Xiang Suoshu blower (6)；
The resistance calculations module (1024), for receiving the current sample information of the current sampling circuit (116) transmission, root
It is calculated according to the current sample information, to obtain each line resistance of each phase output line；
The type judging module (1026) is connected to the resistance calculations module (1024), for according to the institute being calculated
Each line resistance is stated, is judged according to default rule, to obtain the type of the blower (106)；The default rule,
If including: that line resistance is identical, for DC fan, if line resistance is not identical, for AC blower fan；
The IPM inverter circuit (104), is connected to the blower (106) and the controller (102), for described
Under the control of controller (102), adaptation driving is carried out to blower (106) different types of in the recognition result；The IPM is inverse
Power transformation road (104), comprising: at least three-phase inversion branch；Wherein,
At least three-phase inversion branch circuit parallel connection and adaptation switching can be carried out under the control of the controller (102)；
When the different types of blower (106) is AC blower fan, at least three-phase inversion branch, which is adapted, is switched to two
Phase inverter circuit (1042), output single-phase exchange AC blower fan described in electric drive；
Alternatively,
When the different types of blower (106) is DC fan, at least three-phase inversion branch, which is adapted, is switched to three
Phase inverter circuit (1044) exports DC fan described in three-phase alternating current electric drive.
2. the apparatus according to claim 1, which is characterized in that wherein,
When the AC blower fan includes more than one driving gear, at least three-phase inversion branch, which is adapted, to be switched to and institute
The two-phase inverter circuit (1042) for stating driving numbers of gear steps adaptation passes through the corresponding driving of the corresponding two-phase inverter circuit (1042)
The respective drive gear of the AC blower fan.
3. device according to claim 1 or 2, which is characterized in that further include: blower plug terminal；
The blower plug terminal patches the different types of blower (106) for being adapted to.
4. device according to claim 1 or 2, which is characterized in that further include: rectification circuit (108) and pfc circuit
(110), wherein
The rectification circuit (108), the electric energy for providing corresponding feeder ear carry out rectification processing；
The pfc circuit (110), is connected between the rectification circuit (108) and the IPM inverter circuit (104), for pair
Treated that electric energy carries out capability correction processing for the rectification circuit (108) rectification.
5. device according to claim 3, which is characterized in that further include: rectification circuit (108) and pfc circuit (110),
Wherein,
The rectification circuit (108), the electric energy for providing corresponding feeder ear carry out rectification processing；
The pfc circuit (110), is connected between the rectification circuit (108) and the IPM inverter circuit (104), for pair
Treated that electric energy carries out capability correction processing for the rectification circuit (108) rectification.
6. device according to claim 4, which is characterized in that further include: filter circuit (112)；Wherein,
The filter circuit (112), is connected between the pfc circuit (110) and the IPM inverter circuit (104), for pair
Treated that electric energy is filtered for pfc circuit (110) capability correction.
7. device according to claim 5, which is characterized in that further include: filter circuit (112)；Wherein,
The filter circuit (112), is connected between the pfc circuit (110) and the IPM inverter circuit (104), for pair
Treated that electric energy is filtered for pfc circuit (110) capability correction.
8. according to claim 1, device described in one of 2,5,6, which is characterized in that further include: voltage sampling circuit (114),
The voltage sampling circuit (114) is connected to input side and the controller (102) of the IPM inverter circuit (104)
Between, for being sampled to the input side voltage of the IPM inverter circuit (104), the voltage is monitored with realizing.
9. device according to claim 3, which is characterized in that further include: voltage sampling circuit (114),
The voltage sampling circuit (114) is connected to input side and the controller (102) of the IPM inverter circuit (104)
Between, for being sampled to the input side voltage of the IPM inverter circuit (104), the voltage is monitored with realizing.
10. device according to claim 4, which is characterized in that further include: voltage sampling circuit (114),
The voltage sampling circuit (114) is connected to input side and the controller (102) of the IPM inverter circuit (104)
Between, for being sampled to the input side voltage of the IPM inverter circuit (104), the voltage is monitored with realizing.
11. device according to claim 7, which is characterized in that further include: voltage sampling circuit (114),
The voltage sampling circuit (114) is connected to input side and the controller (102) of the IPM inverter circuit (104)
Between, for being sampled to the input side voltage of the IPM inverter circuit (104), the voltage is monitored with realizing.
12. according to claim 1,2,5,6, device described in one of 9-11, which is characterized in that further include: boostrap circuit
(118)；Wherein,
The boostrap circuit (118) is connected to the IPM inverter circuit (104), for the IPM inverter circuit (104)
Outlet side voltage carries out adaptation output.
13. device according to claim 3, which is characterized in that further include: boostrap circuit (118)；Wherein,
The boostrap circuit (118) is connected to the IPM inverter circuit (104), for the IPM inverter circuit (104)
Outlet side voltage carries out adaptation output.
14. device according to claim 4, which is characterized in that further include: boostrap circuit (118)；Wherein,
The boostrap circuit (118) is connected to the IPM inverter circuit (104), for the IPM inverter circuit (104)
Outlet side voltage carries out adaptation output.
15. device according to claim 7, which is characterized in that further include: boostrap circuit (118)；Wherein,
The boostrap circuit (118) is connected to the IPM inverter circuit (104), for the IPM inverter circuit (104)
Outlet side voltage carries out adaptation output.
16. device according to claim 8, which is characterized in that further include: boostrap circuit (118)；Wherein,
The boostrap circuit (118) is connected to the IPM inverter circuit (104), for the IPM inverter circuit (104)
Outlet side voltage carries out adaptation output.
17. according to claim 1,2,5,6, device described in one of 9-11,13-16, which is characterized in that the controller
(102), comprising: digital signal processor (DSP).
18. device according to claim 3, which is characterized in that the controller (102), comprising: digital signal processor
(DSP)。
19. device according to claim 4, which is characterized in that the controller (102), comprising: digital signal processor
(DSP)。
20. device according to claim 7, which is characterized in that the controller (102), comprising: digital signal processor
(DSP)。
21. device according to claim 8, which is characterized in that the controller (102), comprising: digital signal processor
(DSP)。
22. device according to claim 12, which is characterized in that the controller (102), comprising: Digital Signal Processing
Device (DSP).
23. a kind of air-conditioning system characterized by comprising the fan drive device as described in claim 1-22 is any.
24. a kind of blower driving method of air-conditioning system characterized by comprising
By the controller (102), the type of blower (106) in air-conditioning system as claimed in claim 11 is identified, with
To corresponding recognition result；The type of the blower (106), comprising: AC blower fan or DC fan；Identify the air-conditioning system
The type of middle blower (106), comprising:
Preset fixed voltage is exported between each line of each phase output line of motor of the blower (6)；
After exporting the fixed voltage, current sample is carried out to the IPM inverter circuit (104), passes through the current sample
The information of feedback is calculated, to obtain each line resistance of each phase output line；
According to each line resistance being calculated, judged according to default rule, to obtain the blower (106)
Type；The default rule, comprising: if line resistance is identical, for DC fan, if line resistance is not identical, to hand over
Flow fan；
According to the recognition result, by the IPM inverter circuit (104), to different types of blower in the air-conditioning system
(106) adaptation driving is carried out；Blower (106) different types of in the air-conditioning system is driven, comprising:
When the different types of blower (106) is AC blower fan, the IPM inverter circuit (104) adaptation is switched to two
Phase inverter circuit (1042), output single-phase exchange AC blower fan described in electric drive；
Alternatively,
When the different types of blower (106) is DC fan, the IPM inverter circuit (104) adaptation is switched to three
Phase inverter circuit (1044) exports DC fan described in three-phase alternating current electric drive.
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| CN107101267B (en) * | 2017-05-05 | 2019-05-24 | 珠海格力电器股份有限公司 | Differentiating method, the device of air conditioner and air conditioner upper fan and lower blower |
| CN109617458A (en) * | 2018-11-26 | 2019-04-12 | Tcl家用电器（合肥）有限公司 | Motor identification device and method |
| CN110173801A (en) * | 2019-05-10 | 2019-08-27 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
| CN112283907B (en) * | 2020-10-26 | 2022-06-10 | Tcl空调器(中山)有限公司 | Fan shutdown control method and control circuit and air conditioner |
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