CN109708277A - Progress control method, system, air conditioner and computer readable storage medium - Google Patents
Progress control method, system, air conditioner and computer readable storage medium Download PDFInfo
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- CN109708277A CN109708277A CN201811641813.3A CN201811641813A CN109708277A CN 109708277 A CN109708277 A CN 109708277A CN 201811641813 A CN201811641813 A CN 201811641813A CN 109708277 A CN109708277 A CN 109708277A
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Abstract
The present invention provides a kind of progress control method, system, air conditioner and computer readable storage mediums；Progress control method is suitable for electric control circuit, the power factor correction controller, electrolytic capacitor and inverter bridge for being electrically connected to bus are equipped in power-supplying circuit, power supply signal is accessed compressor by power-supplying circuit, and progress control method includes: the input voltage signal for detecting power factor correction controller；It determines the running frequency of compressor, and determines the corresponding demand voltage signal of running frequency；Compare the size relation between demand voltage signal and input voltage signal, and is determined whether to adjust given bus voltage signal according to size relation.Technical solution provided by the invention is applied, the size relation of the demand voltage according to needed for compressor and present input voltage signal further adjusts given bus voltage signal, and given bus voltage signal is adjusted flexibly according to the Run-time scenario of compressor.
Description
Technical field
The present invention relates to power supply control technical fields, control in particular to a kind of progress control method, a kind of operation
System, a kind of air conditioner and a kind of computer readable storage medium.
Background technique
In general, active PFC (Power Factor Correction, PFC) technology is with power factor
High, the advantages that harmonic current is small, output voltage stabilization, is widely used.Wherein, boost (boosting) type PFC be using
One kind the most universal.
The control of device for power switching is it needs to be determined that given busbar voltage in boost type pfc circuit.Generally, mother is given
Line voltage (bus load voltage) be it is fixed, do not comprehensively consider bus capacitor, AC-input voltage side PFC power device and
The fever of compressor side inverter bridge power device three, the fever that will lead to device are unevenly distributed, and influence control effect.
Therefore, a kind of technical solution that bus load voltage can be adjusted flexibly according to application scenarios is needed at present.
Summary of the invention
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
For this purpose, the first aspect of the present invention proposes a kind of progress control method.
The second aspect of the present invention proposes a kind of operation control system.
The third aspect of the present invention proposes a kind of air conditioner.
The fourth aspect of the present invention proposes a kind of computer readable storage medium.
In view of this, the first aspect of the present invention provides a kind of progress control method, it is suitable for electric control circuit, is supplied
The power factor correction controller, electrolytic capacitor and inverter bridge for being electrically connected to bus, power supply control electricity are equipped in electric control circuit
Power supply signal is accessed compressor by road, and progress control method includes: the input voltage signal for detecting power factor correction controller；
It determines the running frequency of compressor, and determines the corresponding demand voltage signal of running frequency；Compare demand voltage signal and input
Size relation between voltage signal, and determined whether to adjust given bus voltage signal according to size relation.
In the technical scheme, in the power-supplying circuit for being provided with boost type power factor correction controller, detection
The input voltage signal of power factor correction controller, and determine demand corresponding to the target operating frequency of the compressor set
Voltage signal compares and further adjusts given busbar voltage according to the size relation of input voltage signal and demand voltage signal
Signal.Technical solution provided by the invention is applied, in compressor in different running frequencies, required given bus
Voltage signal is not also identical, and the size relation of the demand voltage according to needed for compressor and present input voltage signal is further adjusted
Whole given bus voltage signal, so that given bus voltage signal, allows given bus voltage signal according to compressor
Run-time scenario is adjusted flexibly.
Specifically, the running frequency of cooler compressor can be detected by master control borad, or is referred to according to the setting received
Enable the target operating frequency for determining compressor.The input voltage signal for detecting power factor correction controller simultaneously, is specially handed over
The voltage magnitude of galvanic electricity source side input.Compare the input voltage amplitude of exchange side and the size relation of demand voltage signal, and
Given bus voltage signal is further adjusted according to size relation.
In addition, progress control method can also have following supplementary technology special in above-mentioned technical proposal provided by the invention
Sign:
In the above-mentioned technical solutions, further, the size compared between demand voltage signal and input voltage signal is closed
System, and determined whether to adjust given bus voltage signal according to size relation, it specifically includes: relatively determining demand voltage signal
When less than input voltage signal, given busbar voltage is believed according to the operating condition temperature difference between power factor corrector and electrolytic capacitor
It number is adjusted；Or relatively determine demand voltage signal be greater than or equal to input voltage signal when, power factor corrector with
The operating condition temperature difference between inverter bridge is adjusted given bus voltage signal.
In the technical scheme, when demand voltage signal is less than input voltage signal, given bus voltage signal is adjusted
When considering power factor corrector (PFC) and electrolytic capacitor the operating condition temperature difference, according to the operating condition temperature of PFC and electrolytic capacitor
Difference is adjusted given bus voltage signal, to balance the calorific value of power factor corrector and electrolytic capacitor.When demand electricity
When signal being pressed to be greater than input voltage signal, the operating condition between PFC and inverter bridge is comprehensively considered when adjusting given bus voltage signal
The temperature difference is adjusted the voltage signal of linear load according to the operating condition temperature difference of PFC and inverter bridge, to balance power factor corrector
With the calorific value of inverter bridge, by the power factor corrector for comprehensively considering the electrolytic capacitor on bus, AC-input voltage side
Fever with the inverter bridge three of compressor side adjusts given bus voltage signal so that in control circuit each device fever
It is evenly distributed, and then obtains better control effect.
In any of the above-described technical solution, further, relatively determining that demand voltage signal is less than input voltage signal
When, given bus voltage signal is adjusted according to the operating condition temperature difference between power factor corrector and electrolytic capacitor, specifically
It include: to calculate the operating condition temperature of power factor correction controller when relatively determining that demand voltage signal is less than input voltage signal
The operating condition temperature difference between degree and the working temperature of electrolytic capacitor, is denoted as the first temperature difference；Determining that the first temperature difference is greater than or waits
When the first fiducial temperature value, adjusts given bus voltage signal and be reduced to the first preset voltage value.
In the technical scheme, when relatively determining that demand voltage signal is less than input voltage signal, power factor is calculated
The operating condition temperature difference between the working temperature of correcting controller (PFC) and the working temperature of electrolytic capacitor, is denoted as the first temperature difference；Such as
The first temperature difference of fruit is greater than or equal to the first fiducial temperature value, illustrates that the fever of PFC at this time and electrolytic capacitor is uneven, adjusts at this time
Whole given bus voltage signal is reduced to the first preset voltage value.When given bus voltage signal reduces, the working temperature of PFC
It can reduce, the temperature of electrolytic capacitor then can be increased accordingly, and the operating condition temperature difference of the electrolytic capacitor of PFC can be reduced accordingly at this time, make function
The calorific value of rate factor correcting controller (PFC) and electrolytic capacitor is relatively more uniform.
It is further, electric relatively determining that demand voltage signal is greater than or equal to input in any of the above-described technical solution
When pressing signal, the operating condition temperature difference between power factor corrector and inverter bridge is adjusted given bus voltage signal, specifically
It include: to calculate power factor correction controller when relatively determining that demand voltage signal is greater than or equal to input voltage signal
The operating condition temperature difference between working temperature and the working temperature of inverter bridge, is denoted as the second temperature difference；Determining that the second temperature difference is greater than
Or when being equal to the second fiducial temperature value, adjusts given bus voltage signal and be reduced to the second preset voltage value.
In the technical scheme, when relatively determining that demand voltage signal is greater than or equal to input voltage signal, function is calculated
The operating condition temperature difference between the working temperature of rate factor correcting controller (PFC) and the working temperature of inverter bridge, is denoted as second temperature difference
Value；If the second temperature difference is greater than or equal to the second fiducial temperature value, illustrate that the fever of PFC at this time and inverter bridge is uneven, this
When adjust given bus voltage signal and be reduced to the second preset voltage value.When given bus voltage signal reduces, the operating condition of PFC
Temperature can reduce, and the temperature of inverter bridge then can be increased accordingly, and the operating condition temperature difference of the inverter bridge of PFC can be reduced accordingly at this time, make function
The calorific value of rate factor correcting controller (PFC) and inverter bridge is relatively more uniform.
In any of the above-described technical solution, further, progress control method further include: obtain preset busbar voltage letter
Number threshold value；When given bus voltage signal is greater than or equal to bus voltage signal threshold value, adjusting given bus voltage signal is
Voltage signal threshold value.
In the technical scheme, it is provided with bus voltage signal threshold value, bus voltage signal threshold value is electrolysed electricity according to bus
The pressure voltage of the power device of appearance, PFC and inverter bridge is calculated.The given bus voltage signal adjusted is greater than or equal to mother
When line voltage signal threshold value, electrolytic capacitor, power factor correction controller or inverter bridge may be damaged, be adjusted at this time
Given bus voltage signal is equal to voltage signal threshold value, to guarantee the reliable and stable of power-supplying circuit.
In any of the above-described technical solution, further, detecting that it is default that given bus voltage signal is adjusted to first
When voltage value, the working temperature of power factor correction controller is detected；Determining working temperature more than or equal to the first temperature threshold
When value, adjusting given bus voltage signal reduces third preset voltage value.
In the technical scheme, detecting that given bus voltage signal is adjusted to the first preset voltage value, i.e., according to function
It is lasting to detect after the temperature difference between rate factor correcting controller (PFC) and electrolytic capacitor is adjusted given bus voltage signal
The working temperature of PFC；Whenever determining the working temperature to PFC more than or equal to the case where the first temperature threshold, further adjust
Whole given bus voltage signal reduces third preset voltage value, to balance the fever of PFC and electrolytic capacitor, and reduces control circuit
Whole working temperature, avoid circuit devcie overheat burn.
In any of the above-described technical solution, further, detecting that it is default that given bus voltage signal is adjusted to second
When voltage value, the working temperature of power factor correction controller is detected；Determining working temperature more than or equal to second temperature threshold
When value, adjusting given bus voltage signal reduces the 4th preset voltage value.
In the technical scheme, detecting that given bus voltage signal is adjusted to the second preset voltage value, i.e., according to function
After the temperature difference between rate factor correcting controller (PFC) and inverter bridge is adjusted given bus voltage signal, PFC is persistently detected
Working temperature；Whenever determining the working temperature to PFC more than or equal to the case where the first temperature threshold, further adjustment is given
Determining bus voltage signal reduces the 4th preset voltage value, to balance the fever of PFC and inverter bridge, and reduces the entirety of control circuit
Working temperature avoids circuit devcie overheat from burning.
The second aspect of the present invention provides a kind of operation control system, is used for power-supplying circuit, power-supplying circuit
In be equipped with and be electrically connected to the power factor correction controller, electrolytic capacitor and inverter bridge of bus, power-supplying circuit will be for telecommunications
Number access compressor, operation control system includes: detection module, and the input voltage for detecting power factor correction controller is believed
Number；Control module for determining the running frequency of compressor, and determines the corresponding demand voltage signal of running frequency；And ratio
Compared with the size relation between demand voltage signal and input voltage signal, and determined whether to adjust given bus according to size relation
Voltage signal.
In the technical scheme, in the power-supplying circuit for being provided with boost type power factor correction controller, detection
The input voltage signal of power factor correction controller, and determine demand corresponding to the target operating frequency of the compressor set
Voltage signal compares and further adjusts given busbar voltage according to the size relation of input voltage signal and demand voltage signal
Signal.Technical solution provided by the invention is applied, in compressor in different running frequencies, required given bus
Voltage signal is not also identical, and the size relation of the demand voltage according to needed for compressor and present input voltage signal is further adjusted
Given bus voltage signal is adjusted flexibly according to the Run-time scenario of compressor in whole given bus voltage signal.
In the above-mentioned technical solutions, further, control module is also used to: defeated relatively determining that demand voltage signal is less than
When entering voltage signal, given bus voltage signal is carried out according to the operating condition temperature difference between power factor corrector and electrolytic capacitor
Adjustment；Or when relatively determining that demand voltage signal is greater than or equal to input voltage signal, power factor corrector and inverter bridge
Between the operating condition temperature difference given bus voltage signal is adjusted.
In the technical scheme, when demand voltage signal is less than input voltage signal, given bus voltage signal is adjusted
When considering power factor corrector (PFC) and electrolytic capacitor the operating condition temperature difference, according to the operating condition temperature of PFC and electrolytic capacitor
Difference is adjusted given bus voltage signal, to balance the calorific value of power factor corrector and electrolytic capacitor.When demand electricity
When signal being pressed to be greater than input voltage signal, the operating condition between PFC and inverter bridge is comprehensively considered when adjusting given bus voltage signal
The temperature difference is adjusted the voltage signal of linear load according to the operating condition temperature difference of PFC and inverter bridge, to balance power factor corrector
With the calorific value of inverter bridge, by the power factor corrector for comprehensively considering the electrolytic capacitor on bus, AC-input voltage side
Fever with the inverter bridge three of compressor side adjusts given bus voltage signal so that in control circuit each device fever
It is evenly distributed, and then obtains better control effect.
In any of the above-described technical solution, further, control module is also used to: relatively determining that demand voltage signal is small
When input voltage signal, the work between the working temperature of power factor correction controller and the working temperature of electrolytic capacitor is calculated
The condition temperature difference is denoted as the first temperature difference；When determining that the first temperature difference is greater than or equal to the first fiducial temperature value, given bus is adjusted
Voltage signal is reduced to the first preset voltage value.
In the technical scheme, when relatively determining that demand voltage signal is less than input voltage signal, power factor is calculated
The operating condition temperature difference between the working temperature of correcting controller (PFC) and the working temperature of electrolytic capacitor, is denoted as the first temperature difference；Such as
The first temperature difference of fruit is greater than or equal to the first fiducial temperature value, illustrates that the fever of PFC at this time and electrolytic capacitor is uneven, adjusts at this time
Whole given bus voltage signal is reduced to the first preset voltage value.When given bus voltage signal reduces, the working temperature of PFC
It can reduce, the temperature of electrolytic capacitor then can be increased accordingly, and the operating condition temperature difference of the electrolytic capacitor of PFC can be reduced accordingly at this time, make function
The calorific value of rate factor correcting controller (PFC) and electrolytic capacitor is relatively more uniform.
In any of the above-described technical solution, further, control module is also used to: control module is also used to: relatively more true
When determining demand voltage signal and being greater than or equal to given bus voltage signal, calculate power factor correction controller working temperature and
The operating condition temperature difference between the working temperature of inverter bridge, is denoted as the second temperature difference；Determining the second temperature difference more than or equal to second
When fiducial temperature value, adjusts given bus voltage signal and be reduced to the second preset voltage value.
In the technical scheme, when relatively determining that demand voltage signal is greater than or equal to input voltage signal, function is calculated
The operating condition temperature difference between the working temperature of rate factor correcting controller (PFC) and the working temperature of inverter bridge, is denoted as second temperature difference
Value；If the second temperature difference is greater than or equal to the second fiducial temperature value, illustrate that the fever of PFC at this time and inverter bridge is uneven, this
When adjust given bus voltage signal and be reduced to the second preset voltage value.When given bus voltage signal reduces, the operating condition of PFC
Temperature can reduce, and the temperature of inverter bridge then can be increased accordingly, and the operating condition temperature difference of the inverter bridge of PFC can be reduced accordingly at this time, make function
The calorific value of rate factor correcting controller (PFC) and inverter bridge is relatively more uniform.
In any of the above-described technical solution, further, control module is also used to: obtaining preset bus voltage signal threshold
Value；When given bus voltage signal is greater than or equal to bus voltage signal threshold value, adjusting given bus voltage signal is voltage
Signal threshold value.
In the technical scheme, it is provided with bus voltage signal threshold value, bus voltage signal threshold value is electrolysed electricity according to bus
The pressure voltage of the power device of appearance, PFC and inverter bridge is calculated.The given bus voltage signal adjusted is greater than or equal to mother
When line voltage signal threshold value, electrolytic capacitor, power factor correction controller or inverter bridge may be damaged, be adjusted at this time
Given bus voltage signal is equal to voltage signal threshold value, to guarantee the reliable and stable of power-supplying circuit.
In any of the above-described technical solution, further, detection module is also used to: detecting given bus voltage signal
When being adjusted to the first preset voltage value, the working temperature of power factor correction controller is detected；Control module is also used to: in determination
When working temperature is greater than or equal to the first temperature threshold, adjusting given bus voltage signal reduces third preset voltage value.
In the technical scheme, detecting that given bus voltage signal is adjusted to the first preset voltage value, i.e., according to function
It is lasting to detect after the temperature difference between rate factor correcting controller (PFC) and electrolytic capacitor is adjusted given bus voltage signal
The working temperature of PFC；Whenever determining the working temperature to PFC more than or equal to the case where the first temperature threshold, further adjust
Whole given bus voltage signal reduces third preset voltage value, to balance the fever of PFC and electrolytic capacitor, and reduces control circuit
Whole working temperature, avoid circuit devcie overheat burn.
In any of the above-described technical solution, further, detection module is also used to: detecting given bus voltage signal
When being adjusted to the second preset voltage value, the working temperature of power factor correction controller is detected；Control module is also used to: in determination
When working temperature is greater than or equal to second temperature threshold value, adjusting given bus voltage signal reduces the 4th preset voltage value.
In the technical scheme, detecting that given bus voltage signal is adjusted to the second preset voltage value, i.e., according to function
After the temperature difference between rate factor correcting controller (PFC) and inverter bridge is adjusted given bus voltage signal, PFC is persistently detected
Working temperature；Whenever determining the working temperature to PFC more than or equal to the case where the first temperature threshold, further adjustment is given
Determining bus voltage signal reduces the 4th preset voltage value, to balance the fever of PFC and inverter bridge, and reduces the entirety of control circuit
Working temperature avoids circuit devcie overheat from burning.
The third aspect of the present invention provides a kind of air conditioner, and air conditioner includes compressor, and such as any of the above-described technology
Operation control system described in scheme, the output end of operation control system are connected to compressor, operation control system output
Power supply signal is for driving compressor to run.Therefore, which includes the operation control as described in any of the above-described technical solution
Whole beneficial effects of system processed.
The fourth aspect of the present invention provides a kind of computer readable storage medium, is stored thereon with computer program, meter
The progress control method as described in any of the above-described technical solution, therefore, the calculating are realized when calculation machine program is executed by processor
Machine readable storage medium storing program for executing includes whole beneficial effects of the progress control method as described in any of the above-described technical solution.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 shows the flow chart of progress control method according to an embodiment of the invention；
Fig. 2 shows the structural schematic diagrams of power-supplying circuit according to an embodiment of the invention；
Fig. 3 shows the flow chart of progress control method according to another embodiment of the invention；
Fig. 4 shows the flow chart of the progress control method of still another embodiment in accordance with the present invention；
Fig. 5 shows the flow chart of progress control method according to still another embodiment of the invention；
Fig. 6 shows the flow chart of progress control method according to still another embodiment of the invention；
Fig. 7 shows the flow chart of progress control method according to still another embodiment of the invention；
Fig. 8 shows the block diagram of operation control system according to an embodiment of the invention.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
The progress control method described according to some embodiments of the invention, operating system, sky are described referring to Fig. 1 to Fig. 8
Adjust device and computer readable storage medium.
As shown in Figure 1, providing a kind of progress control method in the embodiment of first aspect present invention, being suitable for
Electric control circuit is equipped with the power factor correction controller, electrolytic capacitor and inversion for being electrically connected to bus in power-supplying circuit
Power supply signal is accessed compressor by bridge, power-supplying circuit, and progress control method includes:
S102 detects the input voltage signal of power factor correction controller；
S104 determines the running frequency of compressor, and determines the corresponding demand voltage signal of running frequency；
S106 compares the size relation between demand voltage signal and input voltage signal, and is determined according to size relation
Whether adjustment gives bus voltage signal.
In this embodiment, in the power-supplying circuit for being provided with boost type power factor correction controller, such as Fig. 2
Shown in power-supplying circuit, detect the input voltage signal of power factor correction controller, and determine the compressor of setting
Demand voltage signal corresponding to target operating frequency compares and is closed according to the size of input voltage signal and demand voltage signal
System further adjusts given bus voltage signal.Technical solution provided by the invention is applied, in compressor in different operations
When frequency, required given bus voltage signal is not also identical, the demand voltage according to needed for compressor and current input
The size relation of voltage signal further adjusts given bus voltage signal, allows given bus voltage signal according to compression
The Run-time scenario of machine is adjusted flexibly.
Specifically, the running frequency of cooler compressor can be detected by master control borad, or is referred to according to the setting received
Enable the target operating frequency for determining compressor.The input voltage signal for detecting power factor correction controller simultaneously, is specially handed over
The voltage magnitude of galvanic electricity source side input.Compare the input voltage amplitude of exchange side and the size relation of demand voltage signal, and
Given bus voltage signal is further adjusted according to size relation.
Wherein, as shown in Fig. 2, running control circuit specifically includes: current detecting unit, voltage detection unit, control are single
Member, driving unit, bus capacitor, busbar voltage detection unit, switch unit, inductance, diode.
Control unit is examined using one circle control mode and according to current detecting unit, voltage detection unit, busbar voltage
The sample information and given compressor operating frequency for surveying unit, generate the switch control signal of switch unit, driving unit according to
The switch state of switch control signal control switch unit, to realize PFC function.
In one embodiment of the invention, further, compare between demand voltage signal and input voltage signal
Size relation, and determined whether to adjust given bus voltage signal according to size relation, it specifically includes: relatively determining demand electricity
When signal being pressed to be less than input voltage signal, according to the operating condition temperature difference between power factor corrector and electrolytic capacitor to given bus
Voltage signal is adjusted；Or when relatively determining that demand voltage signal is greater than or equal to input voltage signal, power factor school
The operating condition temperature difference between positive device and inverter bridge is adjusted given bus voltage signal.
In this embodiment, when demand voltage signal is less than input voltage signal, when adjusting given bus voltage signal
The operating condition temperature difference of considering power factor corrector (i.e. PFC) and electrolytic capacitor, according to the operating condition temperature difference of PFC and electrolytic capacitor
Given bus voltage signal is adjusted, to balance the calorific value of power factor corrector and electrolytic capacitor.Work as demand voltage
When signal is greater than input voltage signal, the operating condition temperature between PFC and inverter bridge is comprehensively considered when adjusting given bus voltage signal
Difference is adjusted the voltage signal of linear load according to the operating condition temperature difference of PFC and inverter bridge, with balance power factor corrector and
The calorific value of inverter bridge, by comprehensively consider the electrolytic capacitor on bus, AC-input voltage side power factor corrector and
The fever of the inverter bridge three of compressor side adjusts given bus voltage signal so that in control circuit each device fever point
Cloth is uniform, and then obtains better control effect.
In one embodiment of the invention, further, as shown in figure 3, relatively determining that demand voltage signal is less than
When input voltage signal, according to the operating condition temperature difference between power factor corrector and electrolytic capacitor to given bus voltage signal into
Row adjustment, specifically includes:
S302 calculates power factor correction controller when relatively determining that demand voltage signal is less than input voltage signal
Working temperature and electrolytic capacitor working temperature between the operating condition temperature difference, be denoted as the first temperature difference；
S304 adjusts given bus voltage signal when determining that the first temperature difference is greater than or equal to the first fiducial temperature value
It is reduced to the first preset voltage value.
In this embodiment, when relatively determining that demand voltage signal is less than input voltage signal, power factor school is calculated
The operating condition temperature difference between the working temperature of positive control device (PFC) and the working temperature of electrolytic capacitor, is denoted as the first temperature difference；If
First temperature difference is greater than or equal to the first fiducial temperature value, illustrates that the fever of PFC at this time and electrolytic capacitor is uneven, adjusts at this time
Given bus voltage signal is reduced to the first preset voltage value.When given bus voltage signal reduces, the working temperature meeting of PFC
It reduces, the temperature of electrolytic capacitor then can be increased accordingly, and the operating condition temperature difference of the electrolytic capacitor of PFC can be reduced accordingly at this time, make power
The calorific value of factor correcting controller (PFC) and electrolytic capacitor is relatively more uniform.
In one embodiment of the invention, further, as shown in figure 4, relatively determining that demand voltage signal is greater than
Or when being equal to input voltage signal, the operating condition temperature difference between power factor corrector and inverter bridge to given bus voltage signal into
Row adjustment, specifically includes:
S402 calculates PFC when relatively determining that demand voltage signal is greater than or equal to input voltage signal
The operating condition temperature difference between the working temperature of controller and the working temperature of inverter bridge, is denoted as the second temperature difference；
S404 adjusts given bus voltage signal when determining that the second temperature difference is greater than or equal to the second fiducial temperature value
It is reduced to the second preset voltage value.
In this embodiment, when relatively determining that demand voltage signal is greater than or equal to input voltage signal, power is calculated
The operating condition temperature difference between the working temperature of factor correcting controller (PFC) and the working temperature of inverter bridge, is denoted as the second temperature difference；
If the second temperature difference is greater than or equal to the second fiducial temperature value, illustrates that the fever of PFC at this time and inverter bridge is uneven, adjust at this time
Whole given bus voltage signal is reduced to the second preset voltage value.When given bus voltage signal reduces, the working temperature of PFC
Can reduce, the temperature of inverter bridge then can be increased accordingly, and the operating condition temperature difference of the inverter bridge of PFC can be reduced accordingly at this time, make power because
The calorific value of number correcting controller (PFC) and inverter bridge is relatively more uniform.
In one embodiment of the invention, further, progress control method further include: obtain preset busbar voltage
Signal threshold value；When given bus voltage signal is greater than or equal to bus voltage signal threshold value, given bus voltage signal is adjusted
For voltage signal threshold value.
In this embodiment, be provided with bus voltage signal threshold value, bus voltage signal threshold value according to bus electrolytic capacitor,
The pressure voltage of PFC and the power device of inverter bridge is calculated.The given bus voltage signal adjusted is greater than or equal to bus
When voltage signal threshold value, electrolytic capacitor, power factor correction controller or inverter bridge may be damaged, adjustment is given at this time
Bus voltage signal is determined equal to voltage signal threshold value, to guarantee the reliable and stable of power-supplying circuit.
In one embodiment of the invention, further, detecting that it is pre- that given bus voltage signal is adjusted to first
If when voltage value, detecting the working temperature of power factor correction controller；Determining working temperature more than or equal to the first temperature
When threshold value, adjusting given bus voltage signal reduces third preset voltage value.
In this embodiment, detecting that given bus voltage signal is adjusted to the first preset voltage value, i.e., according to power
After the temperature difference between factor correcting controller (PFC) and electrolytic capacitor is adjusted given bus voltage signal, PFC is persistently detected
Working temperature；Whenever determining the working temperature to PFC more than or equal to the case where the first temperature threshold, further adjustment is given
Determining bus voltage signal reduces third preset voltage value, to balance the fever of PFC and electrolytic capacitor, and reduces the whole of control circuit
Body working temperature avoids circuit devcie overheat from burning.
In one embodiment of the invention, further, detecting that it is pre- that given bus voltage signal is adjusted to second
If when voltage value, detecting the working temperature of power factor correction controller；Determining working temperature more than or equal to second temperature
When threshold value, adjusting given bus voltage signal reduces the 4th preset voltage value.
In this embodiment, detecting that given bus voltage signal is adjusted to the second preset voltage value, i.e., according to power
After the temperature difference between factor correcting controller (PFC) and inverter bridge is adjusted given bus voltage signal, persistently detect PFC's
Working temperature；Whenever determining the working temperature to PFC more than or equal to the case where the first temperature threshold, further adjustment is given
Bus voltage signal reduces the 4th preset voltage value, to balance the fever of PFC and inverter bridge, and reduces the whole work of control circuit
Condition temperature avoids circuit devcie overheat from burning.
In one embodiment of the invention, further, as shown in Figures 5 to 7, determined according to compressor operating frequency
Busbar voltage demand U1, detection AC-input voltage determine AC-input voltage peak value U2.As U1 < U2, section (U1, U2]
It is interior to be selected suitably to give busbar voltage Uref according to the fever of PFC power device and bus capacitor；As U1 >=U2, in area
Between selected suitably to give busbar voltage Uref according to the fever of PFC power device and inverter bridge power device in [U2, U1].
According to the pressure voltage of capacitor and power device, under the premise of meeting voltage margin requirement, given busbar voltage Uref has the upper limit
Value Umax.Specifically, in the case where U1 < U2, as shown in fig. 6, the initial value of given busbar voltage Uref takes U2.When PFC function
When temperature T > threshold value T1 of rate device, gives busbar voltage Uref and declines △ U, and detect the temperature T of PFC power device again,
Until temperature T≤threshold value T1 of PFC power device.Judge whether T2 > T1 is true
In the case where U1 >=U2, as shown in fig. 7, the initial value of given busbar voltage Uref takes U1.When PFC power device
Temperature T > threshold value T2 when, give busbar voltage Uref decline △ U, and again detect PFC power device temperature T, until PFC
Temperature T≤threshold value T2 of power device.
As shown in figure 5, adjusting the control flow of given bus voltage signal specifically:
S502 determines that busbar voltage demand U1, detection AC-input voltage determine that exchange is defeated according to compressor operating frequency
Enter voltage peak U2；
S504 judges whether U2 < U1 is true；If it is judged that be it is yes, into S506；If it is judged that be it is no, into
Enter S508；
S506, according to the suitably given busbar voltage Uref1 of the fever of PFC power device and bus capacitor selection；
S508, according to the suitably given busbar voltage Uref2 of the fever of PFC power device and inverter bridge selection；
S510 judges whether Uref1 < Umax is true；If it is judged that be it is yes, into S514；If it is judged that being
It is no, into S516；
S512 judges whether Uref2 < Umax is true；If it is judged that be it is yes, into S518；If it is judged that being
It is no, into S520；
S514 adjusts Uref=Uref1；
S516 adjusts Uref=Umax；
S518 adjusts Uref=Uref2；
S520 adjusts Uref=Umax.
As shown in fig. 6, adjusting the process of given bus voltage signal such as according to PFC working temperature when U2 < U1 is set up
Under:
S602 confirms Uref1=U2；
S604 detects the working temperature T of PFC power device；
S606 judges whether T > T1 is true；If it is judged that be it is yes, into S608；If it is judged that being no, knot
Beam；
S608 adjusts Uref1=URef1- △ U, returns to S604 later.
As shown in fig. 7, adjusting the process of given bus voltage signal such as according to PFC working temperature when U2 >=U1 is set up
Under:
S702 confirms Uref2=U1；
S704 detects the working temperature T of PFC power device；
S706 judges whether T > T2 is true；If it is judged that be it is yes, into S708；If it is judged that being no, knot
Beam；
S708 adjusts Uref2=URef2- △ U, returns to S704 later.
As shown in figure 8, providing a kind of operation control system 800 in the embodiment of the second aspect of the present invention, being used for
Power-supplying circuit is equipped with the power factor correction controller for being electrically connected to bus, electrolytic capacitor and inverse in power-supplying circuit
Become bridge, power supply signal is accessed compressor by power-supplying circuit, and operation control system 800 includes: detection module 802, for examining
The input voltage signal of power scale factor correcting controller；Control module 804, for determining the running frequency of compressor, and really
Determine the corresponding demand voltage signal of running frequency；And the size compared between demand voltage signal and input voltage signal is closed
System, and determined whether to adjust given bus voltage signal according to size relation.
In this embodiment, in the power-supplying circuit for being provided with boost type power factor correction controller, function is detected
The input voltage signal of rate factor correcting controller, and determine the electricity of demand corresponding to the target operating frequency of the compressor set
Signal is pressed, compare and further adjusts given busbar voltage letter according to the size relation of input voltage signal and demand voltage signal
Number.Technical solution provided by the invention is applied, in compressor in different running frequencies, required given bus electricity
Press signal also not identical, the size relation of the demand voltage according to needed for compressor and present input voltage signal further adjusts
Given bus voltage signal is adjusted flexibly according to the Run-time scenario of compressor in given bus voltage signal.
In one embodiment of the invention, further, control module is also used to: relatively determining demand voltage signal
When less than input voltage signal, given busbar voltage is believed according to the operating condition temperature difference between power factor corrector and electrolytic capacitor
It number is adjusted；Or relatively determine demand voltage signal be greater than or equal to input voltage signal when, power factor corrector with
The operating condition temperature difference between inverter bridge is adjusted given bus voltage signal.
In this embodiment, when demand voltage signal is less than input voltage signal, when adjusting given bus voltage signal
The operating condition temperature difference of considering power factor corrector (i.e. PFC) and electrolytic capacitor, according to the operating condition temperature difference of PFC and electrolytic capacitor
Given bus voltage signal is adjusted, to balance the calorific value of power factor corrector and electrolytic capacitor.Work as demand voltage
When signal is greater than input voltage signal, the operating condition temperature between PFC and inverter bridge is comprehensively considered when adjusting given bus voltage signal
Difference is adjusted the voltage signal of linear load according to the operating condition temperature difference of PFC and inverter bridge, with balance power factor corrector and
The calorific value of inverter bridge, by comprehensively consider the electrolytic capacitor on bus, AC-input voltage side power factor corrector and
The fever of the inverter bridge three of compressor side adjusts given bus voltage signal so that in control circuit each device fever point
Cloth is uniform, and then obtains better control effect.
In one embodiment of the invention, further, control module is also used to: relatively determining demand voltage signal
When less than input voltage signal, calculate between the working temperature of power factor correction controller and the working temperature of electrolytic capacitor
The operating condition temperature difference is denoted as the first temperature difference；When determining that the first temperature difference is greater than or equal to the first fiducial temperature value, given mother is adjusted
Line voltage signal is reduced to the first preset voltage value.
In this embodiment, when relatively determining that demand voltage signal is less than to input voltage signal, power factor is calculated
The operating condition temperature difference between the working temperature of correcting controller (PFC) and the working temperature of electrolytic capacitor, is denoted as the first temperature difference；Such as
The first temperature difference of fruit is greater than or equal to the first fiducial temperature value, illustrates that the fever of PFC at this time and electrolytic capacitor is uneven, adjusts at this time
Whole given bus voltage signal is reduced to the first preset voltage value.When given bus voltage signal reduces, the working temperature of PFC
It can reduce, the temperature of electrolytic capacitor then can be increased accordingly, and the operating condition temperature difference of the electrolytic capacitor of PFC can be reduced accordingly at this time, make function
The calorific value of rate factor correcting controller (PFC) and electrolytic capacitor is relatively more uniform.
In one embodiment of the invention, further, control module is also used to: control module is also used to: being compared
When determining that demand voltage signal is greater than or equal to input voltage signal, the working temperature of power factor correction controller and inverse is calculated
Become the operating condition temperature difference between the working temperature of bridge, is denoted as the second temperature difference；Determining that it is pre- that the second temperature difference is greater than or equal to second
If when temperature difference, adjusting given bus voltage signal and being reduced to the second preset voltage value.
In this embodiment, when relatively determining that demand voltage signal is greater than or equal to input voltage signal, power is calculated
The operating condition temperature difference between the working temperature of factor correcting controller (PFC) and the working temperature of inverter bridge, is denoted as the second temperature difference；
If the second temperature difference is greater than or equal to the second fiducial temperature value, illustrates that the fever of PFC at this time and inverter bridge is uneven, adjust at this time
Whole given bus voltage signal is reduced to the second preset voltage value.When given bus voltage signal reduces, the working temperature of PFC
Can reduce, the temperature of inverter bridge then can be increased accordingly, and the operating condition temperature difference of the inverter bridge of PFC can be reduced accordingly at this time, make power because
The calorific value of number correcting controller (PFC) and inverter bridge is relatively more uniform.
In one embodiment of the invention, further, control module is also used to: obtaining preset bus voltage signal
Threshold value；When given bus voltage signal is greater than or equal to bus voltage signal threshold value, adjusting given bus voltage signal is electricity
Press signal threshold value.
In this embodiment, be provided with bus voltage signal threshold value, bus voltage signal threshold value according to bus electrolytic capacitor,
The pressure voltage of PFC and the power device of inverter bridge is calculated.The given bus voltage signal adjusted is greater than or equal to bus
When voltage signal threshold value, electrolytic capacitor, power factor correction controller or inverter bridge may be damaged, adjustment is given at this time
Bus voltage signal is determined equal to voltage signal threshold value, to guarantee the reliable and stable of power-supplying circuit.
In one embodiment of the invention, further, detection module is also used to: detecting given busbar voltage letter
When number being adjusted to the first preset voltage value, the working temperature of power factor correction controller is detected；Control module is also used to: true
When determining working temperature more than or equal to the first temperature threshold, adjusting given bus voltage signal reduces third preset voltage value.
In this embodiment, detecting that given bus voltage signal is adjusted to the first preset voltage value, i.e., according to power
After the temperature difference between factor correcting controller (PFC) and electrolytic capacitor is adjusted given bus voltage signal, PFC is persistently detected
Working temperature；Whenever determining the working temperature to PFC more than or equal to the case where the first temperature threshold, further adjustment is given
Determining bus voltage signal reduces third preset voltage value, to balance the fever of PFC and electrolytic capacitor, and reduces the whole of control circuit
Body working temperature avoids circuit devcie overheat from burning.
In one embodiment of the invention, further, detection module is also used to: detecting given busbar voltage letter
When number being adjusted to the second preset voltage value, the working temperature of power factor correction controller is detected；Control module is also used to: true
When determining working temperature more than or equal to second temperature threshold value, adjusting given bus voltage signal reduces the 4th preset voltage value.
In this embodiment, detecting that given bus voltage signal is adjusted to the second preset voltage value, i.e., according to power
After the temperature difference between factor correcting controller (PFC) and inverter bridge is adjusted given bus voltage signal, persistently detect PFC's
Working temperature；Whenever determining the working temperature to PFC more than or equal to the case where the first temperature threshold, further adjustment is given
Bus voltage signal reduces the 4th preset voltage value, to balance the fever of PFC and inverter bridge, and reduces the whole work of control circuit
Condition temperature avoids circuit devcie overheat from burning.
In an embodiment of the third aspect of the inve ntion, a kind of air conditioner is provided, air conditioner includes compressor, Yi Jiru
Any of the above-described operation control system as described in the examples, the output end of operation control system are connected to compressor, operation control
The power supply signal of system output is for driving compressor to run.Therefore, which includes as described in above-mentioned any embodiment
Operation control system whole beneficial effects.
In the embodiment of the fourth aspect of the present invention, a kind of computer readable storage medium is provided, is stored thereon with
Computer program realizes the progress control method as described in above-mentioned any embodiment when computer program is executed by processor,
Therefore, which includes the progress control method as described in above-mentioned any embodiment all beneficial to effect
Fruit.
In description of the invention, term " multiple " then refers to two or more, unless otherwise restricted clearly, term
The orientation or positional relationship of the instructions such as "upper", "lower" is to be merely for convenience of retouching based on orientation or positional relationship described in attached drawing
It states the present invention and simplifies description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore be not considered as limiting the invention；Term " connection ", " installation ", " fixation " etc. should all
It is interpreted broadly, for example, " connection " may be fixed connection or may be dismantle connection, or integral connection；It can be straight
Connect it is connected, can also be indirectly connected through an intermediary.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the description of the present invention, the description meaning of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Refer to that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present invention, schematic expression of the above terms are not necessarily referring to identical embodiment or example.And
And the particular features, structures, materials, or characteristics of description can be in any one or more of the embodiments or examples with suitable
Mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (16)
1. a kind of progress control method is suitable for electric control circuit, is equipped in the power-supplying circuit and is electrically connected to bus
Power factor correction controller, electrolytic capacitor and inverter bridge, power supply signal accesses compressor by the power-supplying circuit,
It is characterized in that, the progress control method includes:
Detect the input voltage signal of the power factor correction controller；
It determines the running frequency of the compressor, and determines the corresponding demand voltage signal of the running frequency；
Compare the size relation between the demand voltage signal and the input voltage signal, and true according to the size relation
It is fixed whether to adjust given bus voltage signal.
2. progress control method according to claim 1, which is characterized in that the demand voltage signal and described defeated
Enter the size relation between voltage signal, and determined whether to adjust the given bus voltage signal according to the size relation,
It specifically includes:
When relatively determining that the demand voltage signal is less than the input voltage signal, according to the power factor corrector with
The operating condition temperature difference between the electrolytic capacitor is adjusted the given bus voltage signal；Or
When relatively determining that the demand voltage signal is greater than or equal to the input voltage signal, the power factor corrector
The operating condition temperature difference between the inverter bridge is adjusted the given bus voltage signal.
3. progress control method according to claim 2, which is characterized in that relatively determining that the demand voltage signal is small
When the input voltage signal, according to the operating condition temperature difference between the power factor corrector and the electrolytic capacitor to described
Given bus voltage signal is adjusted, and is specifically included:
When relatively determining that the demand voltage signal is less than the input voltage signal, the Power Factor Correction Control is calculated
The operating condition temperature difference between the working temperature of device and the working temperature of the electrolytic capacitor, is denoted as the first temperature difference；
When determining that first temperature difference is greater than or equal to the first fiducial temperature value, the given bus voltage signal drop is adjusted
Down to the first preset voltage value.
4. progress control method according to claim 2, which is characterized in that relatively determining that the demand voltage signal is big
When the input voltage signal, the operating condition temperature difference between the power factor corrector and the inverter bridge is to described
Given bus voltage signal is adjusted, and is specifically included:
When relatively determining that the demand voltage signal is greater than or equal to the input voltage signal, the power factor school is calculated
The operating condition temperature difference between the working temperature of positive control device and the working temperature of the inverter bridge, is denoted as the second temperature difference；
When determining that second temperature difference is greater than or equal to the second fiducial temperature value, the given bus voltage signal drop is adjusted
Down to the second preset voltage value.
5. progress control method according to any one of claim 1 to 3, which is characterized in that further include:
Obtain preset bus voltage signal threshold value；
When the given bus voltage signal is greater than or equal to the bus voltage signal threshold value, the given bus electricity is adjusted
Pressure signal is the voltage signal threshold value.
6. progress control method according to any one of claim 1 to 3, which is characterized in that further include:
When detecting that the given bus voltage signal is adjusted to the first preset voltage value, the PFC control is detected
The working temperature of device processed；
When determining that the working temperature is greater than or equal to the first temperature threshold, adjusting the given bus voltage signal reduces by the
Three preset voltage values.
7. progress control method according to any one of claim 1 to 3, which is characterized in that further include:
When detecting that the given bus voltage signal is adjusted to the second preset voltage value, the PFC control is detected
The working temperature of device processed；
When determining that the working temperature is greater than or equal to second temperature threshold value, adjusting the given bus voltage signal reduces by the
Four preset voltage values.
8. a kind of operation control system is suitable for electric control circuit, is equipped in the power-supplying circuit and is electrically connected to bus
Power factor correction controller, electrolytic capacitor and inverter bridge, power supply signal accesses compressor by the power-supplying circuit,
It is characterized in that, the operation control system includes:
Detection module, for detecting the input voltage signal of the power factor correction controller；
Control module for determining the running frequency of the compressor, and determines the corresponding demand voltage letter of the running frequency
Number；And
Compare the size relation between the demand voltage signal and the input voltage signal, and true according to the size relation
It is fixed whether to adjust given bus voltage signal.
9. operation control system according to claim 8, which is characterized in that the control module is also used to:
When relatively determining that the demand voltage signal is less than the input voltage signal, according to the power factor corrector with
The operating condition temperature difference between the electrolytic capacitor is adjusted the given bus voltage signal；Or
When relatively determining that the demand voltage signal is greater than or equal to the input voltage signal, the power factor corrector
The operating condition temperature difference between the inverter bridge is adjusted the given bus voltage signal.
10. operation control system according to claim 9, which is characterized in that the control module is also used to:
When relatively determining that the demand voltage signal is less than the input voltage signal, the Power Factor Correction Control is calculated
The operating condition temperature difference between the working temperature of device and the working temperature of the electrolytic capacitor, is denoted as the first temperature difference；
When determining that first temperature difference is greater than or equal to the first fiducial temperature value, the given bus voltage signal drop is adjusted
Down to the first preset voltage value.
11. operation control system according to claim 9, which is characterized in that the control module is also used to:
When relatively determining that the demand voltage signal is greater than or equal to the input voltage signal, the power factor school is calculated
The operating condition temperature difference between the working temperature of positive control device and the working temperature of the inverter bridge, is denoted as the second temperature difference；
When determining that second temperature difference is greater than or equal to the second fiducial temperature value, the given bus voltage signal drop is adjusted
Down to the second preset voltage value.
12. the operation control system according to any one of claim 8 to 10, which is characterized in that the control module is also
For:
Obtain preset bus voltage signal threshold value；
When the given bus voltage signal is greater than or equal to the bus voltage signal threshold value, the given bus electricity is adjusted
Pressure signal is the voltage signal threshold value.
13. the operation control system according to any one of claim 8 to 10, which is characterized in that
The detection module is also used to: when detecting that the given bus voltage signal is adjusted to the first preset voltage value, inspection
Survey the working temperature of the power factor correction controller；
The control module is also used to: when determining that the working temperature is greater than or equal to the first temperature threshold, being given described in adjustment
Determining bus voltage signal reduces third preset voltage value.
14. the operation control system according to any one of claim 8 to 10, which is characterized in that
The detection module is also used to: when detecting that the given bus voltage signal is adjusted to the second preset voltage value, inspection
Survey the working temperature of the power factor correction controller；
The control module is also used to: when determining that the working temperature is greater than or equal to second temperature threshold value, being given described in adjustment
Determining bus voltage signal reduces the 4th preset voltage value.
15. a kind of air conditioner, which is characterized in that the air conditioner includes:
Compressor；And
The output end of operation control system as described in any one of claim 8 to 14, the operation control system is connected to
The compressor, the power supply signal of the operation control system output is for driving the compressor to run.
16. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
The progress control method as described in any one of claims 1 to 7 is realized when being executed by processor.
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| CN110147126A (en) * | 2019-05-15 | 2019-08-20 | 苏州佳世达电通有限公司 | Temperature-control circuit and its control method |
| CN110868060A (en) * | 2019-11-29 | 2020-03-06 | 广东美的制冷设备有限公司 | Control method, control device, household appliance and computer readable storage medium |
| CN110880863A (en) * | 2019-11-29 | 2020-03-13 | 广东美的制冷设备有限公司 | Control method, control device, household appliance and computer readable storage medium |
| CN110880862A (en) * | 2019-11-29 | 2020-03-13 | 广东美的制冷设备有限公司 | Control method, control device, household electrical appliance and computer readable storage medium |
| CN111308159A (en) * | 2019-12-02 | 2020-06-19 | 广东美的制冷设备有限公司 | Current estimation method and device of air conditioner, air conditioner and storage medium |
| CN111720947A (en) * | 2020-06-19 | 2020-09-29 | 海信（山东）空调有限公司 | Method for controlling bus voltage of air conditioner, air conditioner and storage medium |
| CN112015093A (en) * | 2019-05-31 | 2020-12-01 | 广东美的制冷设备有限公司 | Drive control method, device, household appliance and computer readable storage medium |
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| CN110868060B (en) * | 2019-11-29 | 2023-07-21 | 广东美的制冷设备有限公司 | Control method, control device, home appliance and computer readable storage medium |
| CN111308159A (en) * | 2019-12-02 | 2020-06-19 | 广东美的制冷设备有限公司 | Current estimation method and device of air conditioner, air conditioner and storage medium |
| CN111308159B (en) * | 2019-12-02 | 2022-09-09 | 广东美的制冷设备有限公司 | Current estimation method and device of air conditioner, air conditioner and storage medium |
| CN111720947A (en) * | 2020-06-19 | 2020-09-29 | 海信（山东）空调有限公司 | Method for controlling bus voltage of air conditioner, air conditioner and storage medium |
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