CN106288192B - Air-conditioning pfc circuit control method and air-conditioning - Google Patents
Air-conditioning pfc circuit control method and air-conditioning Download PDFInfo
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- CN106288192B CN106288192B CN201610677814.8A CN201610677814A CN106288192B CN 106288192 B CN106288192 B CN 106288192B CN 201610677814 A CN201610677814 A CN 201610677814A CN 106288192 B CN106288192 B CN 106288192B
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Abstract
The invention discloses a kind of air-conditioning pfc circuit control method and circuits, solve the technical problem of existing air-conditioning pfc circuit initial start stage complete machine operation stability difference.Method includes: after air-conditioning booting powers on, to acquire input voltage value and input current value；Affiliated voltage range is judged based on input voltage value；In affiliated voltage range, compare the first current limit size in input current value and affiliated voltage range；If input current is more than or equal to the first current limit in affiliated voltage range, controls and open the work of air-conditioning pfc circuit.Pass through the dual judgement to voltage range and input current, it is accomplished that the purpose for opening PFC function in time, promote the input voltage of compressor, to promote the complete machine run stability of air-conditioning, especially when input voltage inputs lower voltage range, the running frequency that compressor can be promoted faster improves the user experience so as to improve the temperature in room.
Description
Technical field
The invention belongs to air-conditioning technical fields, specifically, being to be related to a kind of air-conditioning pfc circuit control method and air-conditioning.
Background technique
Domestic variable frequency air-conditioning uses PFC(Power Factor Correction, PFC) circuit reaches inhibition
Supply harmonic improves the purpose of air-conditioning power factor, to reduce air conditioner electric control to the harmonic wave interference of external electrical network.
The control mode of current domestic air conditioning pfc circuit is, after household starting of air conditioner, will collect after actual motion
Current value be compared with pre-set current value, the opening and closing of pfc circuit are determined according to comparison result.
But the control mode that existing pfc circuit opens and closes, it is all lower in booting initial stage input voltage and electric current
In the case of, compressor of air conditioner operating voltage is low, and running frequency is promoted also just relatively slow, and it reduce the stability of complete machine operation.
Summary of the invention
This application provides a kind of air-conditioning pfc circuit control method and air-conditionings, solve existing air-conditioning pfc circuit initial start stage
The technical problem of complete machine operation stability difference.
In order to solve the above technical problems, the application is achieved using following technical scheme:
It is proposed a kind of air-conditioning pfc circuit control method, comprising: after air-conditioning booting powers on, acquire input voltage value and input
Current value；Affiliated voltage range is judged based on the input voltage value；In affiliated voltage range, the input current value with
The first current limit size in affiliated voltage range；If the input current is more than or equal to the first limit in affiliated voltage range
Constant current then controls and opens the work of air-conditioning pfc circuit.
Further, after the work of air-conditioning pfc circuit is opened in control, the method also includes: acquisition the second input electricity
Pressure value and the second input current value；Affiliated voltage range is judged based on second input voltage value；In affiliated voltage range, than
The second current limit size in second input current and affiliated voltage range；If second input current is less than institute
Belong to the second current limit in voltage range, then controls and close the work of air-conditioning pfc circuit；Wherein, second current limit is small
Current limliting is limited in described first.
It is proposed a kind of air-conditioning, including pfc circuit and controller, the controller is connect with the pfc circuit, described in control
The unlatching of pfc circuit；The pfc circuit output end connects compressor of air conditioner；The air-conditioning further includes storage unit, for storing
Voltage partition information, the voltage partition information include the first current limit in voltage partition and each voltage partition；Institute
State controller, including acquisition unit, comparing unit and control unit；The acquisition unit, for being powered in air-conditioning booting
Afterwards, input voltage value and input current value are acquired；The comparing unit, the voltage partition for reading the storage unit are believed
Breath, and judges voltage range belonging to the input voltage value, and in affiliated voltage range, the input current with
The first current limit size in affiliated voltage range；Described control unit, it is affiliated for being more than or equal in the input current
When the first current limit in voltage range, the work of air-conditioning pfc circuit is opened in control.
Further, the acquisition unit is also used to control in described control unit and opens the unlatching work of air-conditioning pfc circuit
Later, the second input voltage value and the second input current value are acquired；The voltage partition information further includes having each voltage partition
The second interior current limit, the storage unit are also used to store the second current limit of each voltage partition；It is described relatively more single
Member is also used to based on voltage range belonging to second input voltage value judgement, and in affiliated voltage range, described in comparison
The size of the second current limit value in second input current and affiliated voltage range；Described control unit, it is defeated described second
When entering the second current limit that electric current is less than in affiliated voltage range, the work of air-conditioning pfc circuit is closed in control；Wherein, described
Two current limits are less than first current limit.
Compared with prior art, the advantages of the application and good effect is: the air-conditioning pfc circuit controlling party that the application proposes
In method and air-conditioning, input voltage input voltage after power-on of air conditioner risen to during normal working voltage is divided into according to size
Multiple subregions, and after air-conditioning booting powers on, input voltage value and input current value are acquired, judges which input voltage value belongs to
Voltage range, and compare in affiliated voltage range the size of the first current limit in input current and the section, defeated
When entering the first current limit that electric current is more than or equal in the section, pfc circuit work is opened in control, opens PFC so that realization is timely
The purpose of function, promotes the input voltage of compressor, so that the complete machine run stability of air-conditioning is promoted, it is especially defeated in input voltage
When entering lower voltage range, the running frequency of compressor can be promoted faster, so as to improve the temperature in room, improved and used
Family usage experience.
After the detailed description of the application embodiment is read in conjunction with the figure, other features and advantages of the application will become more
Add clear.
Detailed description of the invention
Fig. 1 is the method flow diagram for the air-conditioning pfc circuit control method that the application proposes；
Fig. 2 is the system architecture diagram for the air-conditioning that the application proposes.
Specific embodiment
The specific embodiment of the application is described in more detail with reference to the accompanying drawing.
The application is intended to provide a kind of prioritization scheme that air-conditioning pfc circuit is opened, and the operating for promoting convertible frequency air-conditioner in time is steady
Qualitative and comfort.
As shown in Figure 1, the air-conditioning pfc circuit control method that the application proposes, includes the following steps:
Step S11: air-conditioning booting powers on.
Step S12: after air-conditioning booting powers on, input voltage value and input current value are acquired.
Initial stage is powered in air-conditioning booting, and voltage, which rises, not up to be stablized namely before air-conditioning do not operate normally, air-conditioning input
Voltage value and input current value are both less than normal working voltage and running current, at this point, compressor operating frequency is low, so that
Air conditioner fluctuation of service.Here input current value is effective value of alternating current.
Step S13: affiliated voltage range is judged based on input voltage value.
Step S14: in affiliated voltage range, compare the first current limit in input current value and affiliated voltage range
Size.
Input voltage after power-on of air conditioner is risen to the input voltage during normal working voltage according to big in the application
It is small to be divided into multiple subregions, it is set with the first current limit of pfc circuit unlatching in each section, is being more than or equal to first restriction
When electric current, meet the operating condition for opening pfc circuit, and when being lower than first current limit, it is not turned on pfc circuit work.
First current limit is the current value for meeting work in corresponding voltage section.
Voltage is that the first current limit value of each voltage range is different according to the purpose that size is divided into multiple sections,
When input voltage is between low-voltage area, the first current limit value is also just small, when input voltage is in high voltage section,
First current limit value is also larger, until the first current limit is maximum when input voltage is within the scope of normal working voltage.Existing
Have in technology, can only could open PFC electricity according to input current judgement when input voltage is in normal voltage range section
Road, and period is powered on before this, pfc circuit, which is not turned on, be easy to cause complete machine fluctuation of service；And in the application, by voltage
It include that input voltage rises to the section before normal working voltage, so that PFC according to multiple sections are divided into from small to large
Circuit can the stage before input voltage rises to standard operating voltage also can in affiliated voltage range input electricity
Stream starts work when meeting operating condition.
Step S15: judge the first current limit whether input current is more than or equal in affiliated voltage range；If so,
Step S16: the work of air-conditioning pfc circuit is opened in control.
It is stroke value table embodiment of a voltage partition and the first current limit as shown in following table one:
Table one
| Input voltage value | First current limit | Second current limit |
| AC100V-120V | 0.7A | 0.3A |
| AC120V-150V | 1.5A | 1A |
| AC150V-180V | 2A | 1.5A |
| AC180V-220V | 3A | 2.5A |
| >AC220V | 3A | 2.5A |
In table one, the input voltage that air-conditioning booting powers on before rear voltage rises to normal working voltage is divided into 5 electricity
Between pressure area, it is set with the first current limit value in each voltage range, such as in the input voltage of acquisition is 160V, judges it
The voltage range for belonging to AC150V-180V, the input current acquired at this time are 2A, then the input current is equal to the first restriction electricity
Stream meets the requirement for opening pfc circuit, at this point it is possible to open before air-conditioning input voltage rises to normal working voltage 220V
Pfc circuit is opened, output voltage is improved and also just improves the running frequency of compressor to improve the input voltage of compressor, mention
The stability of the anode operating of air-conditioning is risen.
Further, in the embodiment of the present application, after the work of air-conditioning pfc circuit is opened in control, method further include:
Step S17: the second input voltage value of acquisition and the second input current value.
Step S18: affiliated voltage range is judged based on the second input voltage value.
Step S19: in affiliated voltage range, compare the second current limit in the second input current and affiliated voltage range
Size.
Step S20: judge the second current limit whether the second input current is less than in affiliated voltage range；If so, step
Rapid S21: the work of air-conditioning pfc circuit is closed in control；Wherein, the second current limit limits current limliting less than first.
With reference also to the content of above-mentioned table one, step S17- step 21 is directed to PFC during air-conditioning shutdown power down
The control process that pfc circuit is remained on or off under the closing control process or input voltage unsteady phenomena of circuit.Example
Such as, when air-conditioning shuts down power down, when input voltage is power-down to 130V, belong to second voltage partition, input current is at this time
1.5A then controls the unlatching for keeping pfc circuit, to improve output voltage, namely improves the input voltage of compressor, maintains air-conditioning
The stability of operation reduces interference of the air conditioner electric control to external electrical network, if but input current is 0.9A at this time, control closing
The work of pfc circuit.In another example in air-conditioning normal course of operation, if input voltage it is unstable fall to 180V when, as long as input
Electric current is maintained at 1.5A or more, can keep the output of pfc circuit, maintains the stability of operation of air conditioner.
Based on air-conditioning pfc circuit control method set forth above, the application also proposes a kind of air-conditioning, as shown in Fig. 2, the sky
Tune includes pfc circuit 21, controller 22 and compressor of air conditioner 23, and controller 22 is connect with pfc circuit 21, controls pfc circuit
Be turned on or off, the output end of pfc circuit 21 connects compressor of air conditioner, provides the input voltage of compressor of air conditioner.
The air-conditioning further includes having storage unit 24, for storing voltage partition information set forth above, voltage partition letter
Breath includes the first current limit in voltage partition and each voltage partition；The voltage partition is the rising of power-on of air conditioner voltage
The subregion in voltage range before to normal working voltage.
Controller 22 includes acquisition unit 221, comparing unit 222 and control unit 223；Acquisition unit 221 is used for
After air-conditioning booting powers on, input voltage value and input current value are acquired；Comparing unit 222 is used to read the electricity in storage unit 24
Partition information is pressed, and judges voltage range belonging to input voltage value, and in affiliated voltage range, compare input current
With the size of the first current limit in affiliated voltage range；Control unit 223 is used to be more than or equal to the first limit in input current
When constant current, the work of air-conditioning pfc circuit is opened in control；Specific control method refers to above-mentioned air-conditioning pfc circuit control method,
It is not described in detail herein；By way of judging affiliated voltage partition, which can be during it power on, especially lower input electricity
In the case of pressure, pfc circuit work is opened in time, promotes output voltage, namely promote the input voltage of compressor of air conditioner, so that pressure
Contracting machine running frequency can get a promotion faster, maintain the stability of operation of air conditioner, timely improve the temperature in room.
Further, acquisition unit 221 be also used to control unit 223 control open air-conditioning pfc circuit open work it
Afterwards, the second input voltage value and the second input current value are acquired；In the voltage partition information stored in storage unit 24, each
Voltage partition is also corresponding to be stored with the second current limit, and comparing unit 222 is also used to based on belonging to the judgement of the second input voltage value
Voltage range, and in affiliated voltage partition, compare the second current limit in the second input current and affiliated voltage range
The size of value, control unit 223 are also used to when the second input current is less than the second current limit value in affiliated voltage range,
The work of air-conditioning pfc circuit is closed in control.Obviously, the second current limit is less than the first current limit.Realize air-conditioning shutdown power down
The control that pfc circuit is remained on or off under the closing control process of pfc circuit or input voltage unsteady phenomena in the process
Process processed is specifically described in detail in above-mentioned air-conditioning pfc circuit control method.
It is above-mentioned, in the air-conditioning pfc circuit control method and air-conditioning that the application proposes, it is accomplished that and opens PFC function in time,
Promote the input voltage of compressor, the skill that compressor operating frequency can faster get a promotion under especially lower input voltage
Art effect improves temperature in room to guarantee the stability of operation of air conditioner.
It should be noted that the above description is not a limitation of the present invention, the present invention is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made within the essential scope of the present invention, are also answered
It belongs to the scope of protection of the present invention.
Claims (4)
1. air-conditioning pfc circuit control method, including air-conditioning are switched on after powering on, input voltage value and input current value are acquired；
It is characterized by further comprising:
Affiliated voltage range is judged based on the input voltage value；In affiliated voltage range, the input current value and institute
Belong to the first current limit size in voltage range；
If the input current is more than or equal to the first current limit in affiliated voltage range, controls and open air-conditioning pfc circuit
Work.
2. air-conditioning pfc circuit control method according to claim 1, which is characterized in that open air-conditioning pfc circuit in control
After work, the method also includes:
Acquire the second input voltage value and the second input current value；
Affiliated voltage range is judged based on second input voltage value；
The second current limit size in affiliated voltage range, second input current and affiliated voltage range；
If second input current is less than the second current limit in affiliated voltage range, controls and close air-conditioning pfc circuit
Work；
Wherein, second current limit is less than the first restriction current limliting.
3. a kind of air-conditioning, including pfc circuit and controller, the controller are connect with the pfc circuit, the PFC electricity is controlled
The unlatching on road；The pfc circuit output end connects compressor of air conditioner；The controller includes acquisition unit, in the sky
After the machine of tuning to open powers on, input voltage value and input current value are acquired；It is characterized in that,
The air-conditioning further includes storage unit, and for storing voltage partition information, the voltage partition information includes voltage partition
And the first current limit in each voltage partition；
The controller further includes comparing unit and control unit；
The comparing unit for reading the voltage partition information of the storage unit, and judges belonging to the input voltage value
Voltage range, and in affiliated voltage range, first in the input current and affiliated voltage range limits electricity
Flow size；
Described control unit, for the input current be more than or equal to affiliated voltage range in the first current limit when, control
System opens the work of air-conditioning pfc circuit.
4. air-conditioning according to claim 3, which is characterized in that
The acquisition unit is also used to after described control unit controls and opens the unlatching work of air-conditioning pfc circuit, acquisition second
Input voltage value and the second input current value；
The voltage partition information further includes the second current limit having in each voltage partition, and the storage unit is also used to
Store the second current limit of each voltage partition；
The comparing unit is also used to based on voltage range belonging to second input voltage value judgement, and in affiliated voltage
In section, the size of the second current limit value in second input current and affiliated voltage range；
Described control unit, when second input current is less than the second current limit in affiliated voltage range, control is closed
Close the work of air-conditioning pfc circuit；
Wherein, second current limit is less than first current limit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610677814.8A CN106288192B (en) | 2016-08-17 | 2016-08-17 | Air-conditioning pfc circuit control method and air-conditioning |
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| CN201610677814.8A CN106288192B (en) | 2016-08-17 | 2016-08-17 | Air-conditioning pfc circuit control method and air-conditioning |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918121A (en) * | 2017-03-31 | 2017-07-04 | 广东美的制冷设备有限公司 | Air-conditioner and its control method and device |
| CN106871388A (en) * | 2017-04-17 | 2017-06-20 | 广东美的暖通设备有限公司 | The energy-saving control method and device of outdoor unit in air-conditioner and air-conditioner |
| CN108489038A (en) * | 2018-03-28 | 2018-09-04 | 江苏新安电器有限公司 | A kind of air-conditioning pfc circuit control method |
| CN109539496B (en) * | 2018-10-19 | 2021-07-23 | 重庆海尔空调器有限公司 | Air conditioner self-adaptive control method and air conditioner |
| CN111503839B (en) * | 2020-03-30 | 2021-06-25 | 海信集团有限公司 | Power control method and device of air conditioner, storage medium and air conditioner |
| CN112432310B (en) * | 2020-10-23 | 2022-08-26 | 珠海格力电器股份有限公司 | Power factor calibration system, method, processor, compressor, air conditioner and medium |
| CN112648693B (en) * | 2020-12-18 | 2023-08-04 | 青岛海信日立空调系统有限公司 | Air conditioner and multi-channel PFC circuit control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101655270A (en) * | 2008-08-18 | 2010-02-24 | 山东朗进科技股份有限公司 | PFC enabling control method for air conditioner |
| CN101896019A (en) * | 2006-06-02 | 2010-11-24 | 松下电器产业株式会社 | Power control unit for high-frequency dielectric heating power |
| WO2015056403A1 (en) * | 2013-10-16 | 2015-04-23 | ダイキン工業株式会社 | Power converter and air conditioner |
| JP2015080317A (en) * | 2013-10-16 | 2015-04-23 | ダイキン工業株式会社 | Power conversion device and air conditioner |
| CN104967301A (en) * | 2015-05-29 | 2015-10-07 | 广东美的制冷设备有限公司 | Apparatus and method of protecting sudden voltage rise of PFC circuit in frequency-conversion household equipment |
| CN105091252A (en) * | 2015-09-23 | 2015-11-25 | 广东美的制冷设备有限公司 | Control method and system of PFC circuit in air conditioner and air conditioner |
-
2016
- 2016-08-17 CN CN201610677814.8A patent/CN106288192B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101896019A (en) * | 2006-06-02 | 2010-11-24 | 松下电器产业株式会社 | Power control unit for high-frequency dielectric heating power |
| CN101655270A (en) * | 2008-08-18 | 2010-02-24 | 山东朗进科技股份有限公司 | PFC enabling control method for air conditioner |
| WO2015056403A1 (en) * | 2013-10-16 | 2015-04-23 | ダイキン工業株式会社 | Power converter and air conditioner |
| JP2015080317A (en) * | 2013-10-16 | 2015-04-23 | ダイキン工業株式会社 | Power conversion device and air conditioner |
| CN105594111A (en) * | 2013-10-16 | 2016-05-18 | 大金工业株式会社 | Power converter and air conditioner |
| CN104967301A (en) * | 2015-05-29 | 2015-10-07 | 广东美的制冷设备有限公司 | Apparatus and method of protecting sudden voltage rise of PFC circuit in frequency-conversion household equipment |
| CN105091252A (en) * | 2015-09-23 | 2015-11-25 | 广东美的制冷设备有限公司 | Control method and system of PFC circuit in air conditioner and air conditioner |
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